Wednesday, 1 April 2015 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0
Western Australia in March 2015: Very wet in the northwest
Frequent rainfall events in March 2015 resulted in a very wet month in the west Pilbara, Gascoyne, and northern Goldfields. The Statewide mean day-time temperature was near average, whilst the mean night-time temperature was above average.
- Tropical cyclone Olwyn tracked very close to the coast between Exmouth and Shark Bay on the 13th, bringing damaging winds and heavy rainfall
- Heavy rainfall in the west Pilbara and Gascoyne from ex-tropical cyclone Nathan on the 30th and 31st
Rainfall was above to very much above average over the Pilbara's western and southern parts, as well as in the Gascoyne, northern Goldfields, and much of the South West Land Division (SWLD), particularly in the north. Numerous locations, including a few sites with over 100 years of rainfall recording in the southern Gascoyne, experienced their wettest March on record, whilst many others recorded their wettest March for at least 20 years. Cue in the Gascoyne, for example, registered a total of 189.6 mm for the month, which was its wettest March in 121 years of recording. It was also the wettest March at Byro in its 101 years of record, both in terms of rainfall amount (182.4 mm) and rain days (15 days).
Below average rainfall for March was mainly confined to small areas in the east Kimberley and eastern Southern Interior, and two sites in the Kimberley recorded their lowest March rainfall for at least 20 years. Averaged across the State, March rainfall was above average, and the SWLD also recorded above average rainfall.
Seasonal thunderstorms occurred in the Kimberley during March 2015, whilst regular rainfall events occurred in northwest and central parts of WA for the first eight days of the month. A broad trough over the northern half of WA combined with a moist tropical airmass to produce widespread showers and thunderstorms over the region with moderate to heavy rainfall recorded in the Pilbara, Gascoyne, Goldfields, and northern and eastern SWLD. Mullewa in the Central West recorded a daily rainfall of 87.0 mm on the 2nd, which is its highest daily rainfall in March in 111 years of record, as well as its sixth highest daily total for any month. Meekatharra Airport experienced ten consecutive rain days from 27 February to 8 March, which is its longest run of rain days for any period in its 69 years of record. As a result of the persistent rainfall, the Gascoyne River flew into Carnarvon, which ended a long dry spell and lifted water restriction for local horticultualists.
Tropical cyclone Olwyn tracked southward near the WA west coast from Exmouth to Shark Bay on the 13th and weakened rapidly while moving southeast through the inland Central West and eastern SWLD on the 14th before merging into a complex low near the south coast on the 15th. Widespread rainfall was observed in western and southwestern parts of the state between on the 13th and 14th, with heavy daily falls over 100 mm near the west Pilbara and Gascoyne coast, causing mainly minor flooding in the Gascoyne, Greenough and Irwin catchments (see the report for more details of tropical cyclone Olwyn). Learmonth Airport recorded a daily rainfall of 141.8 mm on the 13th, which was the highest daily rainfall of the month in WA. A wind gust of 180/km/h measured on the same day was its highest wind gust for sixteen years, since a wind gust of 267 km/h was recorded on 22 March 1999 when severe tropical cyclone Vance moved over the station.
A weak low near the Gascoyne coast triggered thunderstorms in the west Pilbara, Gascoyne and northern SWLD between the 25th and 27th. Hail to 4 cm in diameter was observed in the Geraldton area on the 26th.
Ex-tropical cyclone Nathan moved near the Kimberley coast late in the month and produced moderate rainfall in the district on the 28th. The low pressure system continued to move westward and combined with a slow moving trough near the WA west coast to generate an extensive cloudband over western parts of the State, resulting in moderate to heavy rainfall in the last two days of March over a broad area through the west Pilbara, Gascoyne, eastern SWLD, and western Goldfields. A couple of sites in the Gascoyne and Central Wheat Belt experienced their wettest March day on record as a result.
Mean maximum temperatures were above to very much above average in large parts of the Kimberley, and in eastern parts of the Northern and Southern Interior. Below to very much below average mean maximum temperatures were observed in the west Pilbara, Gascoyne, northern SWLD, and northern Goldfields as a result of persistent cloud and rainfall over these districts. Averaged across the State, the mean maximum temperature was 32.85 °C, which is near the long-term average.
Wet conditions resulted in very low daytime temperatures in the northwest and central WA towards the end of March, and Emu Creek Station and Learmonth Airport in the west Pilbara experienced their coolest day in March on record on the 30th. Kalgoorlie Airport recorded a daily maximum temperature of 15.7 °C on the 27th, which was the lowest maximum temperature of the month in WA, and also its coldest March day for 31 years, since 19 March 1984 when a daily maximum of 14.1 °C was recorded.
Above to very much above average mean minimum temperatures were recorded in a broad area from the east Pilbara through the western Northern Interior and into the Southern Interior and eastern Eucla, whilst also parts of the Kimberley, the southwest Gascoyne, and parts of the SWLD also recorded above average temperatures. Only small parts of the southern Pilbara, inland Gascoyne, and western Eucla recorded below average minima. Averaged across the State, the mean minimum temperature was 20.51 °C, 0.45 °C above the long-term average.
Cloudy conditions and warm northerly winds ahead of the passage of ex-tropical cyclone Olwyn resulted in very warm nights in the southern Gascoyne, and northern and eastern SWLD on the 13th and 14th, with a number of sites recording their highest March overnight temperature as a result.
Extremes Maps Records Summaries Important notes the top
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
| Extremes in March 2015 | |
|---|---|
| Hottest day | 44.3 °C at Roebourne Aero on the 22nd |
| Warmest days on average | 38.9 °C at Warmun |
| Coolest days on average | 22.5 °C at Albany |
| Coldest day | 15.7 °C at Kalgoorlie-Boulder Airport on the 27th |
| Coldest night | 0.5 °C at Eyre on the 25th |
| Coolest nights on average |
11.7 °C at Jarrahwood 11.7 °C at Salmon Gums Res.Stn. |
| Warmest nights on average |
27.3 °C at Browse Island 26.6 °C at Argyle Aerodrome |
| Warmest night |
29.8 °C at Argyle Aerodrome on the 15th 29.8 °C at Wittenoom on the 21st |
| Warmest on average overall | 32.7 °C at Argyle Aerodrome |
| Coolest on average overall | 18.3 °C at Shannon |
| Wettest overall | 291.4 mm at Learmonth Airport |
| Wettest day | 141.8 mm at Learmonth Airport on the 13th |
| Strongest wind gust | 180 km/h at Learmonth Airport on the 13th |
Extremes Maps Records Summaries Important notes the top
| Maps | |||
|---|---|---|---|
| Observed | Anomaly | Decile rank | |
| Total rainfall |
|
|
|
| Mean daily maximum temperatures |
|
|
|
| Mean daily minimum temperatures |
|
|
|
Click on a map to show it full size in a pop-up window
| Record highest March daily rainfall | ||||||
|---|---|---|---|---|---|---|
|
New record (mm) |
Old record |
Years of record |
||||
| Mullewa | 87.0 | on the 2nd | 78.7 | on the 28th in 1971 | 111 | |
| Gibb Rock | 51.2 | on the 31st | 39.0 | on the 19th in 1999 | 34 | |
| Edmund | 96.2 | on the 31st | 85.2 | on the 30th in 2008 | 29 | |
| Mingah Springs | 121.2 | on the 4th | 106.6 | on the 25th in 1999 | 24 | |
| Cunyu | 63.0 | on the 2nd | 52.2 | on the 1st in 2013 | 20 | |
| Record highest March total rainfall | |||||
|---|---|---|---|---|---|
|
New record (mm) |
Old record |
Years of record |
Average for March |
||
| Cue | 189.6 | 144.4 | in 2000 | 121 | 24.8 |
| Coodardy | 190.0 | 178.5 | in 1926 | 117 | 28.3 |
| Byro | 182.4 | 140.3 | in 1942 | 102 | 26.0 |
| Beringarra | 177.2 | 166.9 | in 1927 | 100 | 25.9 |
| Yakabindie | 202.4 | 143.7 | in 1942 | 78 | 33.1 |
| Mount Vernon | 217.2 | 163.8 | in 1965 | 76 | 31.9 |
| Wandana | 196.2 | 187.8 | in 2000 | 54 | 22.0 |
| Paraburdoo Aero | 234.0 | 160.4 | in 2004 | 40 | 50.7 |
| Mingah Springs | 284.2 | 160.4 | in 2008 | 24 | 55.1 |
| Weedarrah | 242.2 | 160.5 | in 1999 | 24 | 28.3 |
| Cunyu | 147.0 | 132.0 | in 2000 | 20 | 47.3 |
| Highest March total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (mm) |
Most recent higher | Years since higher |
Average for March |
||
| Challa | 164.2 | 164.3 | in 1896 | 119 | 24.6 |
| Mullewa | 159.0 | 170.7 | in 1927* | 85 | 19.7 |
| Geraldton Town | 79.6 | 169.1 | in 1934* | 62 | 13.7 |
| Neds Creek | 143.2 | 314.5 | in 1965* | 49 | 35.0 |
| Wiluna | 120.8 | 147.1 | in 1968* | 46 | 36.4 |
| Kooline | 187.6 | 210.5 | in 1958* | 45 | 38.8 |
| Mooloo Downs | 218.7 | 252.7 | in 1933* | 45 | 31.3 |
| Merredin | 85.0 | 143.7 | in 1971 | 44 | 20.8 |
| South Holmwood | 105.6 | 157.0 | in 1971 | 44 | 18.1 |
| Newman Aero | 174.2 | 214.2 | in 1979* | 33 | 42.5 |
| Beebyn | 148.2 | 167.0 | in 1926* | 31 | 28.9 |
| Weebo | 123.2 | 134.0 | in 1984* | 28 | 30.4 |
| Coodernuppin | 55.5 | 71.2 | in 1988 | 27 | 18.3 |
| Amery Acres | 42.6 | 137.3 | in 1971* | 22 | 17.1 |
| Kirkalocka | 122.1 | 130.2 | in 1992* | 22 | 24.1 |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported.
| Lowest March total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (mm) |
Most recent lower | Years since lower |
Average for March |
||
| Argyle Aerodrome | 19.6 | 5.2 | in 1993 | 22 | 153.9 |
| Dampier Downs | 4.4 | 0.0 | in 1993* | 21 | 88.2 |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported.
| Record highest March temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for March |
|||
| Jacup | 40.4 | on the 13th | 40.1 | on the 8th in 2007 | 22 | 25.9 |
| Mount Elizabeth | 37.1 | on the 22nd | 37.0 | on the 22nd in 2013 | 22 | 32.4 |
| Argyle Aerodrome | 42.1 | on the 22nd | 41.5 | on the 19th in 1998 | 21 | 35.3 |
| Record lowest March daily maximum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for March |
|||
| Emu Creek Station | 24.0 | on the 30th | 24.2 | on the 31st in 2006 | 43 | 38.5 |
| Learmonth Airport | 24.5 | on the 30th | 24.9 | on the 26th in 2008 | 41 | 36.4 |
| Mount Magnet Aero | 17.9 | on the 5th | 18.7 | on the 31st in 2006 | 20 | 33.1 |
| Highest March mean daily maximum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent higher | Years since higher |
Average for March |
||
| Kununurra Aero | 38.3 | 38.4 | in 1992 | 23 | 35.5 |
| Lowest March mean daily maximum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent lower | Years since lower |
Average for March |
||
| Mullewa | 30.7 | 29.6 | in 1968* | 32 | 33.7 |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported.
| Record highest March daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for March |
|||
| Carnamah | 29.0 | on the 13th | 28.0 | on the 8th in 2003 | 73 | 17.3 |
| Narembeen | 26.6 | on the 14th | 24.4 | on the 4th in 1971 | 47 | 14.8 |
| Esperance | 25.8 | on the 14th | 25.4 | on the 2nd in 1998 | 46 | 15.1 |
| Eneabba | 29.1 | on the 13th | 29.0 | on the 5th in 1990 | 41 | 18.1 |
| Hyden | 25.2 | on the 14th | 24.5 | on the 20th in 1994 | 41 | 14.2 |
| Paynes Find | 29.3 | on the 13th | 28.8 | on the 2nd in 1998 | 35 | 18.1 |
| Mount Magnet Aero | 28.1 | on the 13th | 27.8 | on the 13th in 2005 | 20 | 20.1 |
| Record lowest March temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for March |
|||
| Eyre | 0.5 | on the 25th | 1.0 | on the 30th in 2004 | 27 | 14.3 |
| Record highest March mean temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for March |
||
| Mount Elizabeth | 27.9 | 27.8 | in 1998 | 21 | 26.5 |
| Highest March mean temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent higher | Years since higher |
Average for March |
||
| Giles Meteorological Office | 28.9 | 30.2 | in 1992 | 23 | 27.1 |
| Kununurra Aero | 31.7 | 31.9 | in 1992 | 23 | 29.9 |
| Record lowest March mean temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for March |
||
| Emu Creek Station | 29.0 | 29.1 | in 2000 | 42 | 31.2 |
| Learmonth Airport | 27.8 | 28.3 | in 2001 | 40 | 29.7 |
| Murchison | 25.7 | 25.8 | in 1993 | 25 | 27.7 |
Extremes Maps Records Summaries Important notes the top
| Summary statistics for March 2015 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for March 2015 |
Diff from average |
Highest for March 2015 |
Mean for March 2015 |
Diff from average |
Lowest for March 2015 |
Total for March 2015 |
Average for March |
Rank of March 2015 |
Fraction of March average |
|||
| North Kimberley (district 01) | ||||||||||||
| Doongan | 34.2 | +1.1 | 37.0 | 22nd | 22.0 | +0.1 | 20.0 | 24th | 247.5 | 203.2 | average | 122% |
| Kalumburu | 35.2 | +1.6 | 38.3 | 14th | 24.0 | +0.6 | 22.4 | 24th | 223.2 | 225.0 | average | 99% |
| Mount Elizabeth | 34.0 | +1.6 | 37.1 | 22nd | 21.6 | +1.1 | 19.2 | 30th | 248.2 | 162.9 | high | 152% |
| Troughton Island | 32.1 | +0.1 | 33.8 | 25th | 26.9 | +0.4 | 21.5 | 16th | 83.4 | 137.6 | average | 61% |
| Truscott | 33.1 | +0.7 | 36.3 | 20th | 25.1 | 0.0 | 23.2 | 17th | 107.4 | 202.1 | low | 53% |
| Wyndham Aero | 38.8 | +3.1 | 42.3 | 15th | 26.3 | +0.8 | 22.4 | 24th | 64.6 | 147.5 | low | 44% |
| East Kimberley (district 02) | ||||||||||||
| Argyle Aerodrome | 38.8 | +3.5 | 42.1 | 22nd | 26.6 | +2.0 | 23.0 | 27th | 19.6 | 153.9 | low | 13% |
| Halls Creek Airport | 36.3 | +0.9 | 39.3 | 23rd | 23.6 | +0.8 | 20.1 | 2nd | 105.6 | 82.2 | high | 128% |
| Kununurra Aero | 38.3 | +2.8 | 42.3 | 21st | 25.0 | +0.8 | 20.0 | 13th | 26.2 | 150.3 | v low | 17% |
| Warmun | 38.9 | +3.0 | 41.5 | 23rd | 24.3 | +1.1 | 21.0 | 30th | 38.6 | 116.7 | low | 33% |
| West Kimberley (district 03) | ||||||||||||
| Bidyadanga | 35.5 | +0.2 | 39.8 | 23rd | 25.5 | +0.6 | 23.0 | 6th | 51.4 | 96.6 | average | 53% |
| Broome Airport | 34.1 | +0.2 | 39.0 | 26th | 26.2 | +0.8 | 21.8 | 20th | 53.6 | 100.1 | average | 54% |
| Curtin Aero | 36.4 | +0.3 | 40.2 | 23rd | 24.4 | +0.3 | 22.4 | 7th | 51.8 | 161.1 | low | 32% |
| Cygnet Bay | 33.5 | -0.2 | 36.6 | 21st | 25.1 | +0.6 | 20.3 | 24th | 139.1 | 167.1 | average | 83% |
| Derby Aero | 36.3 | +1.1 | 40.2 | 23rd | 25.4 | +0.4 | 20.6 | 24th | 60.6 | 133.0 | average | 46% |
| Fitzroy Crossing Aero | 37.9 | +1.2 | 41.6 | 23rd | 24.0 | +0.1 | 21.0 | 30th | 69.4 | 118.1 | low | 59% |
| De Grey (district 04) | ||||||||||||
| Bedout Island | 33.0 | 34.7 | 23rd | 27.2 | 23.2 | 4th | ||||||
| Karratha Aero | 34.9 | -1.2 | 40.8 | 22nd | 26.1 | +0.3 | 23.1 | 5th | 54.4 | 49.2 | high | 111% |
| Legendre Island | 33.1 | 36.4 | 22nd | 23.9 | 5th | |||||||
| Mandora | 35.8 | -1.1 | 42.1 | 23rd | 24.9 | +1.0 | 21.9 | 24th | 80.0 | 73.7 | average | 109% |
| Marble Bar | 38.2 | +0.5 | 42.7 | 21st | 25.4 | +0.5 | 20.9 | 4th | 100.0 | 77.5 | high | 129% |
| Pardoo Station | 36.9 | +0.7 | 41.0 | 23rd | 25.5 | +1.0 | 23.2 | 10th | 19.9 | 63.3 | average | 31% |
| Port Hedland Airport | 37.2 | +0.5 | 41.7 | 21st | 26.1 | +1.6 | 23.2 | 20th | 8.6 | 48.4 | average | 18% |
| Roebourne Aero | 37.3 | -0.3 | 44.3 | 22nd | 25.3 | +0.1 | 22.6 | 20th | 61.8 | 42.5 | high | 145% |
| Fortescue (district 05) | ||||||||||||
| Barrow Island Airport | 32.1 | -1.2 | 35.7 | 9th | 26.1 | -0.4 | 23.2 | 31st | 211.0 | 62.1 | high | 340% |
| Learmonth Airport | 32.9 | -3.5 | 37.5 | 9th | 22.7 | -0.3 | 19.5 | 17th | 291.4 | 42.8 | v high | 681% |
| Mardie | 35.9 | -1.7 | 41.4 | 21st | 22.8 | 31st | 80.2 | 49.6 | high | 162% | ||
| Onslow Airport | 34.1 | -2.0 | 39.0 | 23rd | 24.5 | +0.4 | 22.1 | 18th | 287.2 | 74.6 | v high | 385% |
| Wittenoom | 34.9 | -1.8 | 39.4 | 21st | 24.1 | -0.2 | 20.2 | 24th | 167.6 | 70.3 | high | 238% |
| West Gascoyne (district 06) | ||||||||||||
| Carnarvon Airport | 31.5 | -0.1 | 39.7 | 11th | 22.5 | +0.4 | 19.2 | 17th | 115.2 | 17.4 | v high | 662% |
| Denham | 31.3 | +0.2 | 39.1 | 11th | 22.5 | +0.4 | 19.0 | 29th | 143.6 | 15.3 | v high | 939% |
| Emu Creek Station | 35.0 | -3.5 | 39.5 | 23rd | 22.9 | -0.9 | 19.0 | 26th | 170.9 | 41.6 | v high | 411% |
| Gascoyne Junction | 33.3 | -4.2 | 39.0 | 2nd | 19.6 | 17th | 215.1 | 30.4 | v high | 708% | ||
| Murchison | 31.2 | -4.2 | 37.0 | 12th | 20.4 | +0.3 | 17.0 | 29th | 89.7 | 33.4 | v high | 269% |
| Shark Bay Airport | 32.6 | -1.6 | 39.4 | 11th | 21.6 | +0.4 | 16.4 | 29th | 182.2 | 23.9 | v high | 762% |
| East Gascoyne (district 07) | ||||||||||||
| Newman Aero | 34.0 | -1.0 | 39.6 | 20th | 22.4 | +0.8 | 19.1 | 5th | 174.2 | 42.5 | v high | 410% |
| Paraburdoo Aero | 34.6 | -2.1 | 39.3 | 17th | 22.6 | -0.7 | 18.5 | 28th | 234.0 | 50.7 | highest | 462% |
| Murchison (district 07A) | ||||||||||||
| Meekatharra Airport | 30.0 | -4.3 | 36.7 | 20th | 20.1 | -1.2 | 15.8 | 28th | 99.6 | 29.3 | v high | 340% |
| Mount Magnet Aero | 29.2 | -3.9 | 38.3 | 12th | 19.0 | -1.1 | 13.7 | 25th | 127.0 | 38.2 | v high | 332% |
| Paynes Find | 30.8 | -2.2 | 39.2 | 12th | 18.1 | 0.0 | 11.8 | 25th | 37.0 | 24.4 | high | 152% |
| North Coast (district 08) | ||||||||||||
| Carnamah | 30.6 | -2.2 | 39.5 | 12th | 18.1 | +0.8 | 12.8 | 23rd | 32.3 | 20.3 | high | 159% |
| Dalwallinu | 29.4 | -2.2 | 38.5 | 12th | 16.6 | +0.2 | 11.0 | 23rd | 44.6 | 23.7 | high | 188% |
| Geraldton Airport | 30.6 | 38.9 | 12th | 18.5 | 13.1 | 29th | 86.4 | |||||
| Kalbarri | 31.2 | -1.5 | 39.6 | 12th | 20.2 | +1.0 | 16.4 | 28th | 75.1 | 13.3 | v high | 565% |
| Morawa Airport | 30.6 | -2.7 | 39.3 | 12th | 18.6 | +0.7 | 13.4 | 23rd | 73.2 | 17.8 | v high | 411% |
| Mullewa | 30.7 | -3.0 | 39.4 | 12th | 19.4 | +1.0 | 14.5 | 23rd | 159.0 | 19.7 | v high | 807% |
| North Island | 27.9 | -0.3 | 30.0 | 9th | 21.8 | -0.1 | 18.1 | 17th | 26.0 | 6.8 | high | 382% |
| Wongan Hills | 29.8 | -1.2 | 38.5 | 12th | 16.0 | -0.4 | 10.0 | 23rd | 27.8 | 20.2 | high | 138% |
| Central Coast (district 09) | ||||||||||||
| Badgingarra Research Stn | 29.9 | -2.1 | 39.0 | 12th | 16.4 | 0.0 | 10.7 | 23rd | 39.2 | 16.6 | high | 236% |
| Bickley | 27.2 | -0.9 | 36.5 | 12th | 14.8 | +0.3 | 8.7 | 23rd | 41.8 | 25.4 | high | 165% |
| Garden Island HSF | 26.4 | -0.8 | 33.7 | 13th | 18.3 | +0.1 | 13.1 | 23rd | 16.2 | 14.7 | average | 110% |
| Gingin Aero | 29.7 | -1.1 | 39.6 | 12th | 15.2 | 0.0 | 9.2 | 29th | 51.4 | 15.9 | high | 323% |
| Gosnells City | 30.0 | -0.6 | 38.2 | 12th | 12.4 | 23rd | 21.6 | 16.8 | high | 129% | ||
| Jandakot Aero | 29.6 | -0.1 | 36.4 | 12th | 15.4 | 0.0 | 9.0 | 24th | 17.4 | 16.1 | high | 108% |
| Jurien Bay | 29.8 | +0.4 | 36.5 | 13th | 16.6 | 0.0 | 11.5 | 23rd | 10.2 | 14.0 | average | 73% |
| Karnet | 27.6 | -0.2 | 36.2 | 12th | 12.1 | 25th | 45.4 | 24.4 | high | 186% | ||
| Lancelin | 36.5 | 12th | 12.0 | 25th | 51.0 | 14.8 | v high | 345% | ||||
| Medina Research Centre | 29.3 | -0.1 | 35.2 | 13th | 16.3 | +0.4 | 10.8 | 23rd | 20.3 | 19.3 | average | 105% |
| Pearce RAAF | 31.0 | +0.5 | 41.5 | 12th | 15.7 | -0.3 | 8.9 | 29th | 26.8 | 15.1 | high | 177% |
| Perth Airport | 29.9 | +0.2 | 38.6 | 12th | 16.2 | +0.3 | 10.8 | 28th | 21.4 | 16.2 | high | 132% |
| Perth Metro | 29.5 | -0.2 | 37.9 | 12th | 16.9 | +0.3 | 12.3 | 23rd | 15.6 | 19.5 | average | 80% |
| Rottnest Island | 25.8 | -0.3 | 31.1 | 13th | 18.8 | +0.1 | 13.6 | 23rd | 22.4 | 14.3 | high | 157% |
| Swanbourne | 29.3 | +0.3 | 37.2 | 12th | 17.3 | 0.0 | 11.7 | 23rd | 21.4 | 21.4 | average | 100% |
| South Coast (district 09A) | ||||||||||||
| Albany | 22.5 | +0.3 | 37.5 | 13th | 15.8 | +1.1 | 9.5 | 24th | 35.6 | 38.4 | average | 93% |
| Albany Airport | 23.9 | 40.1 | 13th | 13.5 | 5.8 | 24th | 39.0 | |||||
| Bridgetown | 27.0 | -0.5 | 39.2 | 13th | 12.2 | +0.5 | 3.7 | 24th | 34.2 | 18.9 | high | 181% |
| Bunbury | 27.7 | -0.1 | 36.2 | 13th | 14.7 | +0.6 | 7.4 | 25th | 23.0 | 15.5 | high | 148% |
| Busselton Aero | 27.3 | -0.7 | 36.0 | 13th | 13.3 | 0.0 | 6.3 | 23rd | 32.4 | 16.0 | high | 203% |
| Cape Leeuwin | 22.7 | 0.0 | 24.8 | 12th | 17.3 | +0.6 | 13.0 | 24th | 53.4 | 28.1 | high | 190% |
| Cape Naturaliste | 25.5 | +1.0 | 32.4 | 13th | 15.3 | +0.3 | 9.2 | 23rd | 36.0 | 22.7 | high | 159% |
| Collie East | 28.1 | -0.3 | 37.3 | 12th | 12.3 | +0.4 | 4.7 | 24th | 21.8 | 12.6 | high | 173% |
| Donnybrook | 28.6 | +0.6 | 38.9 | 13th | 14.8 | +1.9 | 8.0 | 23rd | 46.6 | 24.6 | high | 189% |
| Dwellingup | 27.7 | +0.7 | 36.3 | 12th | 13.8 | +0.9 | 7.6 | 24th | 45.8 | 26.3 | high | 174% |
| Esperance | 25.2 | 0.0 | 41.5 | 13th | 14.9 | -0.2 | 7.7 | 26th | 36.0 | 29.8 | high | 121% |
| Esperance Aero | 27.2 | +1.2 | 41.1 | 13th | 14.2 | -0.3 | 8.4 | 24th | 42.6 | 33.7 | high | 126% |
| Hopetoun North | 24.7 | -0.1 | 42.0 | 13th | 14.2 | +0.1 | 7.7 | 26th | 34.8 | 29.7 | average | 117% |
| Jarrahwood | 28.2 | +0.5 | 37.0 | 12th | 11.7 | +0.1 | 2.5 | 23rd | 58.6 | 19.8 | v high | 296% |
| Mandurah | 28.0 | +0.2 | 34.4 | 5th | 18.0 | -0.2 | 12.5 | 23rd | 18.8 | 16.2 | high | 116% |
| Manjimup | 25.8 | +1.0 | 38.7 | 13th | 12.7 | +0.2 | 7.2 | 23rd | 38.2 | 29.8 | high | 128% |
| North Walpole | 23.4 | -0.7 | 29.3 | 12th | 14.0 | -0.3 | 9.2 | 24th | 40.0 | 33.5 | average | 119% |
| Pemberton | 24.9 | +0.4 | 34.5 | 13th | 12.4 | -0.3 | 6.4 | 23rd | 32.4 | 36.4 | average | 89% |
| Rocky Gully | 24.7 | -0.6 | 38.8 | 13th | 12.3 | -0.1 | 6.7 | 24th | 44.8 | 34.4 | high | 130% |
| Shannon | 24.2 | -0.9 | 38.3 | 13th | 12.5 | +0.1 | 6.0 | 24th | 45.6 | 31.3 | high | 146% |
| Witchcliffe | 24.8 | -1.1 | 33.2 | 12th | 13.3 | +0.3 | 6.8 | 24th | 42.0 | 23.6 | high | 178% |
| North Central (district 10) | ||||||||||||
| Bencubbin | 28.8 | -2.0 | 38.1 | 12th | 16.5 | +0.3 | 10.0 | 23rd | 96.2 | 23.4 | v high | 411% |
| Cunderdin Airfield | 30.6 | -0.4 | 39.6 | 12th | 15.5 | +0.2 | 9.4 | 23rd | 25.6 | 16.1 | high | 159% |
| Merredin | 29.5 | -0.8 | 37.4 | 12th | 16.8 | +0.6 | 9.9 | 23rd | 85.0 | 20.8 | v high | 409% |
| Northam | 30.2 | -0.6 | 39.4 | 12th | 16.1 | +0.7 | 11.0 | 24th | 22.8 | 18.4 | high | 124% |
| York | 29.9 | -0.9 | 39.3 | 12th | 9.9 | 28th | 24.1 | 16.4 | average | 147% | ||
| South Central (district 10A) | ||||||||||||
| Beverley | 30.5 | -0.3 | 39.8 | 12th | 14.7 | 0.0 | 6.2 | 23rd | 21.4 | 16.3 | high | 131% |
| Brookton | 29.1 | -0.4 | 38.2 | 12th | 15.0 | +0.6 | 7.3 | 23rd | 26.6 | 18.0 | high | 148% |
| Corrigin | 28.9 | 0.0 | 38.5 | 12th | 14.6 | +0.3 | 9.0 | 24th | 29.9 | 21.0 | high | 142% |
| Hyden | 30.5 | +0.5 | 39.9 | 13th | 14.5 | +0.3 | 7.2 | 25th | 38.0 | 20.1 | high | 189% |
| Jacup | 25.7 | -0.2 | 40.4 | 13th | 12.3 | -0.2 | 5.0 | 24th | 46.4 | 29.6 | high | 157% |
| Katanning | 26.8 | -0.5 | 37.6 | 12th | 13.0 | +0.1 | 4.5 | 23rd | 19.6 | 17.2 | average | 114% |
| Lake Grace | 27.8 | -0.4 | 38.3 | 12th | 14.3 | -0.1 | 8.4 | 23rd | 48.4 | 19.2 | high | 252% |
| Narembeen | 30.4 | +0.1 | 38.9 | 12th | 15.7 | +0.9 | 9.6 | 24th | 32.3 | 20.2 | high | 160% |
| Narrogin | 27.7 | +0.4 | 37.6 | 12th | 13.9 | +0.9 | 7.7 | 23rd | 39.2 | 20.8 | high | 188% |
| Newdegate Research Station | 27.9 | -0.2 | 39.0 | 13th | 12.7 | +0.1 | 6.3 | 24th | 34.2 | 21.2 | high | 161% |
| Ongerup | 26.2 | +0.2 | 39.4 | 13th | 13.3 | +0.1 | 5.5 | 24th | 16.4 | 22.0 | average | 75% |
| Pingelly | 28.5 | +0.1 | 38.0 | 12th | 14.6 | -0.1 | 6.7 | 23rd | 26.2 | 17.3 | high | 151% |
| Ravensthorpe | 26.7 | +0.1 | 40.0 | 13th | 13.6 | 0.0 | 6.5 | 24th | 60.7 | 31.8 | high | 191% |
| Wagin | 27.6 | -0.1 | 38.1 | 12th | 13.7 | +0.3 | 6.0 | 23rd | 18.8 | 20.2 | average | 93% |
| Wandering | 28.5 | -0.6 | 38.7 | 12th | 12.4 | -0.1 | 5.2 | 24th | 38.4 | 16.8 | high | 229% |
| Eucla (district 11) | ||||||||||||
| Balladonia | 28.5 | +0.4 | 37.6 | 14th | 13.2 | -0.4 | 5.6 | 24th | 10.9 | 27.8 | average | 39% |
| Eucla | 26.0 | +0.8 | 43.2 | 15th | 15.2 | -0.7 | 9.5 | 25th | 22.6 | 22.8 | average | 99% |
| Eyre | 27.6 | +1.9 | 39.3 | 14th | 12.8 | -1.5 | 0.5 | 25th | 10.9 | 27.2 | average | 40% |
| Forrest | 28.5 | -0.7 | 41.1 | 15th | 14.6 | +0.2 | 8.8 | 26th | 7.6 | 25.2 | average | 30% |
| Red Rocks Point | 25.4 | +1.2 | 39.2 | 18th | 16.2 | -0.8 | 8.8 | 25th | 4.6 | 23.3 | v low | 20% |
| South East (district 12) | ||||||||||||
| Bulga Downs | 29.2 | -3.7 | 38.1 | 12th | 17.4 | -0.9 | 12.0 | 25th | 85.8 | 25.1 | v high | 342% |
| Kalgoorlie-Boulder Airport | 29.1 | -0.3 | 39.6 | 21st | 16.7 | +0.7 | 9.2 | 25th | 23.4 | 25.8 | average | 91% |
| Laverton Aero | 28.7 | -1.8 | 39.4 | 21st | 18.0 | -0.2 | 13.2 | 25th | 70.8 | 37.4 | high | 189% |
| Leinster Aero | 28.8 | -2.2 | 38.3 | 21st | 18.5 | -0.4 | 13.4 | 25th | ||||
| Leonora Aero | 28.8 | 38.8 | 21st | 18.3 | 12.2 | 25th | 69.2 | |||||
| Munglinup West | 27.8 | +0.8 | 41.3 | 13th | 13.5 | -0.3 | 7.3 | 24th | 49.8 | 28.7 | high | 174% |
| Norseman Aero | 29.3 | +0.7 | 39.8 | 21st | 13.9 | -0.1 | 4.2 | 24th | 25.2 | 32.1 | average | 79% |
| Salmon Gums Res.Stn. | 28.3 | +1.0 | 39.2 | 13th | 11.7 | -0.9 | 1.8 | 24th | 37.0 | 26.2 | high | 141% |
| Southern Cross Airfield | 29.7 | -0.9 | 37.3 | 12th | 16.2 | +1.1 | 9.0 | 23rd | 75.6 | 36.2 | high | 209% |
| Yeelirrie | 29.5 | -3.7 | 38.3 | 21st | 17.7 | -0.5 | 14.0 | 28th | 130.2 | 32.6 | v high | 399% |
| North East (district 13) | ||||||||||||
| Carnegie | 33.2 | -0.8 | 40.8 | 21st | 21.1 | +1.2 | 15.3 | 25th | 46.4 | 33.7 | high | 138% |
| Giles Meteorological Office | 35.8 | +2.1 | 40.9 | 18th | 22.1 | +1.6 | 17.8 | 25th | 1.8 | 35.5 | low | 5% |
| Telfer Aero | 38.0 | +0.6 | 42.0 | 21st | 25.5 | +1.5 | 21.8 | 28th | 36.0 | 74.5 | average | 48% |
| Warburton Airfield | 35.2 | +1.2 | 40.9 | 15th | 21.1 | +1.1 | 14.9 | 25th | 10.0 | 30.4 | average | 33% |
| Wiluna | 30.1 | -3.9 | 38.5 | 21st | 19.7 | +0.1 | 15.8 | 5th | 120.8 | 36.4 | v high | 332% |
| Offshore Islands (district 200) | ||||||||||||
| Adele Island | 31.2 | 35.6 | 21st | 26.8 | 22.5 | 22nd | ||||||
| Browse Island | 30.4 | 31.7 | 22nd | 27.3 | 22.5 | 23rd | ||||||
| Christmas Island Aero | 28.5 | +0.3 | 29.9 | 14th | 23.2 | +0.2 | 21.1 | 2nd | 617.4 | 301.9 | v high | 205% |
| Cocos Island Airport | 30.7 | +0.7 | 31.7 | 20th | 25.6 | +0.4 | 23.8 | 1st | 226.0 | 232.3 | average | 97% |
Extremes Maps Records Summaries Important notes the top
Notes
A Monthly Climate Summary is prepared to list the main features of the weather in Western Australia using the most timely and accurate information available on the date of publication; it will generally not be updated. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review, usually published in the fourth week of the month.
A Climate Summary is generally published on the first working day of each month.
This statement has been prepared based on information available at 10 am on Wednesday 1 April 2015. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
Averages for individual sites are long-term means based on observations from
all available years of record, which vary widely from site to site.
They are not shown for sites with less than 10 years of record, as they cannot then be calculated reliably.
The median
is sometimes more representative than the
mean
of long-term average rain.
The Rank indicates how rainfall this time compares with the climate record for the site,
based on the
decile ranking
(very low rainfall is in decile 1, low in decile 2 or 3,
average in decile 4 to 7, high in decile 8 or 9
and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a
percentage of the long-term mean.
The ACORN-SAT dataset is used for temperature area averages.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
