Monday, 3 September 2012 - Seasonal Climate Summary for Western Australia - Product code IDCKGC11R0
Details Extremes Records Summaries Important notes the top
Rainfall during winter 2012 was below to very much below average throughout much of WA, and a few sites in the Great Southern observed their lowest winter rainfall in over 100 years of record, with the previous record being winter 2010. This low rainfall was in stark contrast to the above average rainfall reported in the nearby South and Southeast Coastal districts, mainly due to heavy rainfall in early June, and the fact that two sites in the South Coastal district reported their highest winter rainfall on record. Averaged across WA as a whole, winter rainfall was the 7th driest on record, whilst the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay) ranked as the 6th driest for winter 2012 (comparable records commenced in 1900) mainly due to the region registering its driest July on record. For the Southwest Land Division (SWLD) as a whole, rainfall in winter 2012 ranked as the 9th driest on record.
Significant rainfall events during winter 2012:
Mean daily maximum temperatures during winter 2012 were above to very much above average throughout most of WA, apart from in the southeast Kimberley which saw below average daytime maxima.. Areas of highest on record were evident in the west Pilbara and far norhtwest Gascoyne where temperatures were up to 3 °C above normal. Learmonth recorded its warmest winter in 37 years of record with a mena maximum of 26.6 °C, whilst Emu Creek Station recorded its equal warmest winter.
When averaged across the state, the mean maximum temperature for winter 2012 was above average, whilst the Lower Southwest also recorded an above average winter.
A high moving south of WA in mid-August resulted warm to hot conditions through northwest and central parts of WA from the 16th through to the 21st, with unseasonally hot days observed in the west Pilbara and Gascoyne on the 18th. Onslow Airport observed its warmest winter temperature in 48 years of record on the 18th, with a maximum of 35.2 °C. Hot conditions re-established over northern WA late in the month and Telfer Aerodrome recorded a maximum temperatue of 36.0 °C on the 28th, its equal highest winter temperature in 39 years of record.
Minimum temperatures were below to very much below average during winter 2012 in most of eastern and northern WA, with temperatures up to 4 °C below normal in the northeast Kimberley. Western and central WA saw mostly near average overnight temperatures, with areas of above average mean minima in the west Pilbara, west Gascoyne, and northern SWLD, and areas below average in the central and eastern SWLD, and in the Goldfields.
When averaged across the state, the mean minimum temperature for WA for winter 2012 was very much below average, and ranked as the 7th lowest since comparable records commenced in 1950, whilst the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay) was near average.
Cloudy skies and northerly winds in the western parts of the state in the second week of June brought unseasonally warm nights on the 10th and 11th. Emu Creek Station in the west Pilbara recorded a minimum of 22.2 °C on the 10th, its warmest winter night in 41 years of recording, and Kalbarri recorded a minimum of 19.4 °C on the 11th, its warmest winter night in 39 years of recording.
| Extremes in winter 2012 | |
|---|---|
| Hottest day | 38.5 °C at Fitzroy Crossing Aero on 27 Aug |
| Warmest days on average | 31.7 °C at Kalumburu |
| Coolest days on average | 15.7 °C at Rocky Gully |
| Coldest day | 10.1 °C at Norseman Aero on 10 Jul |
| Coldest night | -4.2 °C at Yeelirrie
on 7 Jul -4.2 °C at Warburton Airfield on 8 Jul |
| Coolest nights on average | 3.5 °C at York |
| Warmest nights on average | 21.3 °C at Troughton
Island 14.8 °C at Wyndham |
| Warmest night | 24.7 °C at Troughton
Island on 3 Jun 23.3 °C at Argyle Aero on 26 Aug |
| Wettest overall | 578.2 mm at Walpole |
| Wettest day | 174.2 mm at Peppermint Grove on 2 Jun |
| Highest wind gust | 146 km/h at Cape Naturaliste on 10 Jun |
Extremes Maps Records Summaries Important notes the top
| Maps | |||
|---|---|---|---|
| Observed | Anomaly | Decile rank | |
| Total rainfall |
|
|
|
| Mean daily maximum temperatures |
|
|
|
| Mean daily minimum temperatures |
|
|
|
Extremes Maps Records Summaries Important notes the top
| Record highest winter daily rainfall | ||||||
|---|---|---|---|---|---|---|
|
Highest daily rainfall in winter 2012 (mm) |
Previous wettest for winter |
Years of record |
||||
| Peppermint Grove | 174.2 | on 2 Jun | 105.2 | on 7 Jul 1945 | 106 | |
| Eradu | 62.6 | on 10 Jun | 58.9 | on 28 Jun 1910 | 72 | |
| Coolangatta | 54.4 | on 10 Jun | 44.0 | on 30 Jul 1996 | 63 | |
| Warner Glen | 106.4 | on 1 Jun | 91.2 | on 20 Jun 1967 | 63 | |
| Wayjo Park | 60.0 | on 2 Jun | 54.0 | on 2 Jul 1978 | 50 | |
| Albany Airport Comparison | 96.4 | on 2 Jun | 65.4 | on 20 Jul 1991 | 49 | |
| Tamaru | 116.2 | on 2 Jun | 112.7 | on 2 Aug 1992 | 47 | |
| Kimberley | 88.2 | on 1 Jun | 70.0 | on 25 Jun 1988 | 44 | |
| Walpole Forestry | 84.6 | on 1 Jun | 73.0 | on 22 Jun 1983 | 42 | |
| Vermeulen | 68.6 | on 1 Jun | 59.0 | on 16 Jul 1984 | 39 | |
| Warra Jarra | 84.0 | on 1 Jun | 67.2 | on 26 Aug 1993 | 34 | |
| Karingal | 33.6 | on 2 Jun | 33.2 | on 15 Aug 1976 | 33 | |
| Record highest total winter rainfall | |||||
|---|---|---|---|---|---|
|
Total rainfall for winter 2012 (mm) |
Previous wettest for winter |
Years of record |
Average for winter |
||
| Tamaru | 429.8 | 416.7 | in 1992 | 45 | 269.3 |
| Warra Jarra | 331.2 | 249.0 | in 1986 | 33 | 181.1 |
| Record lowest total winter rainfall | |||||
|---|---|---|---|---|---|
| Total rainfall for winter 2012 (mm) |
Previous driest for winter |
Years of record |
Average for winter |
||
| Wagin | 104.7 | 109.0 | in 1914 | 122 | 200.7 |
| Narrogin | 114.8 | 118.4 | in 2010 | 121 | 241.7 |
| Wickepin | 88.7 | 96.0 | in 2010 | 101 | 194.5 |
| Record highest winter temperature | ||||||
|---|---|---|---|---|---|---|
|
Highest temperature in winter 2012 (°C) |
Previous warmest for winter |
Years of record |
Average for winter |
|||
| Onslow Airport | 35.2 | on 18 Aug | 34.8 | on 31 Aug 2006 | 48 | 26.1 |
| Telfer Aero | 36.0 | on 28 Aug | = 36.0 | on 23 Aug 1995 | 39 | 26.3 |
| Record highest winter mean daily maximum temperature | |||||
|---|---|---|---|---|---|
|
Mean daily maximum temperature for winter 2012 (°C) |
Previous warmest for winter |
Years of record |
Average for winter |
||
| Emu Creek Station | 28.1 | = 28.1 | in 1977 | 39 | 26.3 |
| Learmonth Airport | 26.6 | 26.2 | in 2003 | 37 | 25.1 |
| Record highest winter daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
|
Highest daily minimum temperature in winter 2012 (°C) |
Previous warmest for winter |
Years of record |
Average for winter |
|||
| Emu Creek Station | 22.2 | on 10 Jun | 21.9 | on 14 Aug 2011 | 41 | 12.0 |
| Kalbarri | 19.4 | on 11 Jun | 19.3 | on 19 Jul 1985 | 39 | 10.2 |
| Record lowest winter mean daily minimum temperature | |||||
|---|---|---|---|---|---|
|
Mean daily minimum temperature for winter 2012 (°C) |
Previous coolest for winter |
Years of record |
Average for winter |
||
| Eyre | 3.7 | = 3.7 | in 2010 | 49 | 6.2 |
| Wyndham | 14.8 | = 14.8 | in 2002 | 44 | 17.8 |
Extremes Maps Records Summaries Important notes the top
| Summary statistics for winter 2012 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures for winter (°C) |
Minimum temperatures for winter (°C) |
Rainfall for winter (millimetres) |
||||||||||
| Mean for winter 2012 |
Diff from average |
Highest for winter 2012 |
Mean for winter 2012 |
Diff from average |
Lowest for winter 2012 |
Total for winter 2012 |
Average for winter |
Rank of winter 2012 |
Fraction of winter average |
|||
| North Kimberley (district 01) | ||||||||||||
| Kalumburu | 31.7 | -0.5 | 37.5 | 26 Aug | 13.0 | -1.1 | 8.1 | 27 Jun | 0.2 | 4.1 | low | 5% |
| Mount Elizabeth | 29.0 | 0.0 | 34.7 | 30 Aug | 0 | 17.9 | lowest | 0% | ||||
| Troughton Island | 27.7 | -0.9 | 29.7 | 15 Jul | 21.3 | -1.4 | 18.9 | 3 Aug | 4.6 | 11.2 | high | 41% |
| Wyndham | 31.1 | -0.8 | 37.2 | 26 Aug | 14.8 | -3.0 | 10.5 | 26 Jun | 0 | 7.0 | lowest | 0% |
| Wyndham Aero | 31.7 | -0.4 | 38.3 | 26 Aug | 14.0 | -1.6 | 8.9 | 12 Aug | 0 | 7.0 | v low | 0% |
| East Kimberley (district 02) | ||||||||||||
| Argyle Aerodrome | 29.7 | -0.6 | 36.5 | 26 Aug | 14.1 | -2.2 | 9.1 | 25 Jun | 0 | 6.2 | v low | 0% |
| Halls Creek Airport | 27.4 | -0.7 | 35.1 | 30 Aug | 12.1 | -1.6 | 7.1 | 7 Jul | 0 | 13.4 | lowest | 0% |
| Kununurra Aero | 30.9 | -0.2 | 38.0 | 26 Aug | 12.3 | -3.4 | 6.7 | 7 Jul | 0 | 5.5 | lowest | 0% |
| Warmun | 29.6 | -0.8 | 36.4 | 26 Aug | 11.9 | -1.8 | 6.0 | 1 Aug | 0 | 12.5 | lowest | 0% |
| West Kimberley (district 03) | ||||||||||||
| Bidyadanga | 30.8 | +0.7 | 37.1 | 26 Aug | 10.2 | 4 Jul | 1.8 | 30.3 | low | 6% | ||
| Broome Airport | 29.8 | +0.4 | 36.6 | 27 Aug | 13.1 | -1.5 | 7.4 | 3 Aug | 1.6 | 26.4 | low | 6% |
| Curtin Aero | 31.5 | -0.1 | 38.4 | 26 Aug | 13.4 | -2.6 | 6.2 | 8 Jul | 0 | 18.1 | v low | 0% |
| Derby Aero | 30.7 | -0.5 | 37.2 | 31 Aug | 12.3 | -3.3 | 6.1 | 27 Jun | 0 | 16.8 | lowest | 0% |
| Fitzroy Crossing Aero | 31.0 | -0.4 | 38.5 | 27 Aug | 10.6 | -2.2 | 3.9 | 4 Jul | 0 | 16.4 | v low | 0% |
| West Roebuck | 31.2 | -0.1 | 37.9 | 26 Aug | 11.4 | -1.4 | 3.6 | 25 Jun | 0.4 | 32.0 | v low | 1% |
| De Grey (district 04) | ||||||||||||
| Karratha Aero | 27.2 | +0.2 | 34.6 | 20 Aug | 13.4 | -0.9 | 7.3 | 7 Jul | 58.2 | 47.7 | high | 122% |
| Mandora | 30.3 | +0.8 | 37.5 | 28 Aug | 2.8 | 9 Jul | 1.8 | 28.1 | low | 6% | ||
| Marble Bar | 28.7 | +0.7 | 36.5 | 28 Aug | 11.9 | -0.9 | 5.4 | 9 Jul | 5.0 | 33.0 | average | 15% |
| Pardoo Station | 29.0 | +0.2 | 36.0 | 29 Aug | 12.3 | -1.5 | 4.5 | 14 Jul | 17.7 | 38.3 | average | 46% |
| Port Hedland Airport | 28.7 | +0.8 | 35.5 | 28 Aug | 12.1 | -1.1 | 5.8 | 9 Jul | 11.4 | 36.8 | average | 31% |
| Roebourne | 29.0 | +1.4 | 36.4 | 21 Aug | 13.5 | -1.0 | 6.4 | 8 Jul | 71.6 | 47.8 | high | 150% |
| Roebourne Aero | 28.6 | -0.1 | 35.9 | 21 Aug | 11.5 | -1.3 | 4.5 | 8 Jul | 84.2 | 34.8 | high | 242% |
| Fortescue (district 05) | ||||||||||||
| Barrow Island Airport | 24.6 | +0.3 | 30.1 | 20 Aug | 17.5 | -0.5 | 11.8 | 15 Jul | 36.0 | 43.1 | average | 84% |
| Learmonth Airport | 26.6 | +1.5 | 33.5 | 30 Aug | 11.8 | -0.5 | 4.0 | 6 Jul | 16.0 | 76.0 | v low | 21% |
| Mardie | 29.3 | +0.9 | 35.3 | 20 Aug | 12.5 | -0.2 | 5.9 | 9 Jul | 28.0 | 57.8 | average | 48% |
| Onslow Airport | 27.7 | +1.6 | 35.2 | 18 Aug | 14.1 | +0.6 | 7.5 | 16 Jul | 45.2 | 74.6 | average | 61% |
| Wittenoom | 26.7 | +1.5 | 34.4 | 27 Aug | 12.2 | -0.3 | 4.0 | 15 Jul | 13.0 | 50.4 | low | 26% |
| West Gascoyne (district 06) | ||||||||||||
| Carnarvon Airport | 24.6 | +1.7 | 29.1 | 18 Jun | 10.8 | -0.8 | 3.3 | 6 Jul | 50.0 | 110.9 | low | 45% |
| Denham | 22.8 | +0.5 | 29.1 | 3 Jun | 15.0 | +1.8 | 10.0 | 6 Jul | 116.7 | 116.6 | average | 100% |
| Emu Creek Station | 28.1 | +1.8 | 34.9 | 11 Aug | 12.1 | +0.1 | 5.6 | 7 Jul | 25.7 | 70.0 | low | 37% |
| Murchison | 23.3 | +1.6 | 32.5 | 26 Aug | 7.0 | +0.2 | 0.0 | 3 Jul | 71.3 | 78.9 | average | 90% |
| Shark Bay Airport | 24.0 | +0.5 | 29.8 | 3 Jun | 11.2 | +0.1 | 4.7 | 4 Jul | 126.0 | 92.9 | high | 136% |
| East Gascoyne (district 07) | ||||||||||||
| Newman Aero | 24.8 | +0.8 | 33.6 | 28 Aug | 7.0 | +0.1 | -0.7 | 5 Jul | 5.2 | 35.0 | low | 15% |
| Paraburdoo Aero | 26.8 | +1.0 | 34.7 | 27 Aug | 10.5 | 0.0 | 1.8 | 6 Jul | 11.4 | 48.0 | low | 24% |
| Murchison (district 07A) | ||||||||||||
| Meekatharra Airport | 21.8 | +1.8 | 30.5 | 26 Aug | 8.4 | +0.2 | 1.8 | 13 Jul | 22.4 | 63.4 | low | 35% |
| Mount Magnet Aero | 20.9 | +1.1 | 31.0 | 26 Aug | 7.9 | +0.3 | 1.9 | 22 Jun | 63.4 | 70.2 | average | 90% |
| North Coast (district 08) | ||||||||||||
| Carnamah | 19.8 | +1.1 | 26.7 | 11 Aug | 7.9 | +0.2 | 1.7 | 25 Jul | 133.5 | 194.8 | low | 69% |
| Geraldton Airport | 21.1 | 28.4 | 4 Jun | 9.3 | 1.8 | 25 Jul | 213.6 | |||||
| Geraldton Airport Comparison | 20.9 | +0.7 | 28.7 | 4 Jun | 9.5 | -0.3 | 1.6 | 25 Jul | 214.0 | 256.4 | average | 83% |
| Kalbarri | 23.7 | +1.4 | 29.6 | 4 Jun | 10.0 | -0.2 | 1.4 | 6 Jul | 152.7 | 201.8 | low | 76% |
| Morawa Airport | 20.2 | +0.7 | 28.0 | 11 Aug | 7.2 | +0.6 | 1.3 | 25 Jul | 150.0 | 118.4 | average | 127% |
| Mullewa | 21.2 | +1.6 | 30.3 | 11 Aug | 8.6 | +1.1 | 2.4 | 13 Jul | 118.0 | 167.2 | low | 71% |
| North Island | 22.0 | +0.5 | 27.1 | 3 Jun | 15.4 | -0.4 | 7.7 | 16 Jul | 215.4 | 179.3 | average | 120% |
| Wongan Hills | 18.8 | +1.1 | 25.9 | 11 Aug | 7.0 | 0.0 | 0.0 | 25 Jul | 150.8 | 192.5 | low | 78% |
| Central Coast (district 09) | ||||||||||||
| Badgingarra Research Stn | 18.7 | +0.5 | 25.8 | 3 Jun | 8.1 | +0.5 | 1.8 | 25 Jul | 237.2 | 296.2 | average | 80% |
| Bickley | 16.2 | +0.6 | 21.6 | 11 Aug | 7.8 | +0.3 | 2.9 | 9 Jul | 433.4 | 592.7 | low | 73% |
| Champion Lakes | 18.8 | 23.7 | 3 Jun | 9.5 | 2.7 | 25 Jul | 285.8 | |||||
| Garden Island HSF | 18.4 | +0.1 | 23.1 | 3 Jun | 11.3 | -0.1 | 5.6 | 13 Jul | 267.4 | 324.4 | low | 82% |
| Gingin Aero | 19.4 | +0.5 | 24.4 | 11 Aug | 6.5 | -0.1 | -2.7 | 25 Jul | 273.4 | 350.6 | low | 78% |
| Gosnells City | 19.9 | +0.8 | 25.5 | 3 Jun | 263.4 | 457.8 | v low | 58% | ||||
| Jandakot Aero | 19.3 | +0.9 | 24.3 | 10 Aug | 6.7 | -0.4 | -1.6 | 25 Jul | 303.6 | 461.3 | v low | 66% |
| Jurien Bay | 21.0 | +1.1 | 26.2 | 21 Jul | 8.8 | -0.9 | 0.5 | 25 Jul | 261.0 | 308.8 | low | 85% |
| Karnet | 16.7 | +0.8 | 22.1 | 10 Aug | 6.2 | -0.4 | -0.5 | 19 Jul | 441.3 | 621.2 | v low | 71% |
| Lancelin | 20.6 | +1.1 | 26.2 | 5 Jun | 213.7 | 336.7 | v low | 63% | ||||
| Medina Research Centre | 19.6 | +0.8 | 24.5 | 10 Aug | 8.1 | -0.4 | 0.3 | 25 Jul | 286.8 | 410.5 | v low | 70% |
| Pearce RAAF | 19.3 | +1.0 | 24.3 | 11 Aug | 7.8 | -0.9 | -0.8 | 25 Jul | 256.8 | 374.6 | low | 69% |
| Perth Airport | 19.5 | +1.1 | 24.5 | 11 Aug | 8.0 | -0.3 | -0.7 | 25 Jul | 276.4 | 436.5 | v low | 63% |
| Perth Metro* | 19.7 | +0.9 | 24.5 | 11 Aug | 8.0 | -0.2 | 0.4 | 25 Jul | 262.6 | 478.7 | v low | 55% |
| Rottnest Island | 18.6 | +0.5 | 23.4 | 3 Jun | 13.0 | +0.3 | 9.1 | 18 Jul | 271.6 | 392.1 | v low | 69% |
| Swanbourne | 19.7 | +0.9 | 24.7 | 3 Jun | 9.8 | -0.2 | 3.9 | 25 Jul | 310.8 | 389.9 | low | 80% |
| South Coast (district 09A) | ||||||||||||
| Albany | 17.4 | +1.2 | 22.1 | 21 Jul | 9.6 | +1.1 | 4.5 | 10 Aug | 400.0 | 403.5 | average | 99% |
| Albany Airport | 17.0 | 22.0 | 11 Aug | 7.5 | 0.9 | 10 Aug | 420.4 | |||||
| Albany Airport Comparison | 16.8 | +0.6 | 21.9 | 11 Aug | 7.6 | -0.1 | 0.9 | 10 Aug | 371.2 | 334.5 | high | 111% |
| Bridgetown | 16.7 | +0.5 | 22.5 | 3 Jun | 4.6 | -0.2 | -2.1 | 10 Aug | 322.8 | 346.1 | low | 93% |
| Bunbury | 18.0 | +0.3 | 23.8 | 3 Jun | 7.3 | -0.2 | 0.1 | 18 Jul | 320.8 | 408.1 | low | 79% |
| Busselton Aero | 17.6 | +0.4 | 23.6 | 3 Jun | 6.7 | -0.4 | 1.0 | 10 Aug | 303.2 | 370.3 | low | 82% |
| Cape Leeuwin | 17.8 | +1.1 | 22.0 | 4 Jun | 12.5 | +0.9 | 7.1 | 9 Jul | 352.2 | 494.3 | low | 71% |
| Cape Naturaliste | 17.8 | +1.1 | 21.4 | 5 Jun | 11.4 | +0.7 | 5.1 | 24 Jul | 309.8 | 438.5 | v low | 71% |
| Collie East | 17.3 | 22.5 | 3 Jun | 3.9 | -2.4 | 5 Jul | 264.0 | 364.2 | low | 72% | ||
| Donnybrook | 18.1 | +1.0 | 22.7 | 4 Jun | 6.3 | +0.2 | 0.0 | 9 Jul | 372.5 | 525.7 | low | 71% |
| Dwellingup | 16.8 | +1.3 | 22.1 | 10 Aug | 5.4 | -0.4 | -1.1 | 19 Jul | 458.2 | 674.1 | v low | 68% |
| Esperance | 18.3 | +0.6 | 27.2 | 26 Aug | 8.7 | 0.0 | 4.7 | 20 Jul | 265.8 | 259.6 | average | 102% |
| Esperance Aero | 17.2 | +0.3 | 25.5 | 12 Aug | 7.7 | -0.2 | 3.2 | 20 Jul | 226.0 | 214.9 | average | 105% |
| Harvey | 18.1 | +0.4 | 23.0 | 5 Jun | 7.5 | -0.2 | 0.5 | 24 Jul | 363.4 | 434.6 | low | 84% |
| Hopetoun North | 18.8 | +0.1 | 29.7 | 11 Aug | 8.2 | +0.1 | 3.0 | 5 Jul | 218.6 | 172.0 | high | 127% |
| Mandurah | 18.4 | +0.5 | 22.9 | 5 Jun | 11.1 | +0.1 | 5.8 | 19 Jul | 349.2 | 343.8 | low | 102% |
| Manjimup | 16.1 | +1.2 | 21.0 | 11 Aug | 7.1 | +0.3 | 1.8 | 9 Jul | 294.4 | 485.1 | v low | 61% |
| North Walpole | 16.7 | 20.9 | 9 Jun | 9.1 | 3.8 | 10 Aug | ||||||
| Pemberton | 16.5 | +1.1 | 21.1 | 3 Jun | 8.0 | +0.5 | 2.3 | 10 Aug | 428.2 | 569.1 | low | 75% |
| Rocky Gully | 15.7 | +0.5 | 20.4 | 11 Aug | 6.9 | 0.0 | 0.3 | 9 Jul | 302.4 | 277.1 | average | 109% |
| Windy Harbour | 17.5 | +0.4 | 22.3 | 9 Jun | 9.7 | +0.7 | 2.5 | 9 Jul | 457.7 | 532.7 | low | 86% |
| Witchcliffe | 17.1 | +0.3 | 21.3 | 11 Aug | 8.1 | -0.2 | 1.3 | 9 Jul | 518.8 | 500.6 | high | 104% |
| North Central (district 10) | ||||||||||||
| Bencubbin | 18.3 | +1.2 | 28.4 | 11 Aug | 6.8 | +0.4 | 0.1 | 19 Jul | 86.9 | 132.1 | low | 66% |
| Cunderdin Airfield | 18.7 | +1.0 | 25.9 | 31 Aug | 4.7 | -0.2 | -2.9 | 19 Jul | 90.4 | 128.2 | low | 71% |
| Kellerberrin | 18.3 | +1.2 | 27.0 | 11 Aug | 87.3 | 147.1 | v low | 59% | ||||
| Merredin | 18.5 | +1.6 | 28.4 | 11 Aug | 6.0 | +0.1 | -2.5 | 25 Jul | 93.8 | 139.3 | low | 67% |
| Northam | 18.7 | +1.1 | 24.6 | 11 Aug | 4.9 | -0.9 | -2.9 | 25 Jul | 143.3 | 223.8 | low | 64% |
| York | 18.3 | +0.6 | 24.0 | 11 Aug | 3.5 | -0.6 | -3.1 | 25 Jul | 152.3 | 191.1 | low | 80% |
| South Central (district 10A) | ||||||||||||
| Beverley | 18.4 | +0.9 | 24.2 | 31 Aug | 4.7 | -0.7 | -2.6 | 19 Jul | 121.8 | 215.2 | v low | 57% |
| Brookton | 17.5 | +0.9 | 23.8 | 4 Jun | 4.4 | -0.5 | -2.1 | 19 Jul | 123.0 | 234.2 | v low | 53% |
| Corrigin | 17.3 | +1.3 | 25.8 | 31 Aug | 4.1 | -1.1 | -2.3 | 19 Jul | 103.7 | 167.8 | v low | 62% |
| Hyden | 18.5 | +1.4 | 28.7 | 11 Aug | 4.3 | -0.7 | -3.5 | 19 Jul | 84.2 | 137.9 | low | 61% |
| Jacup | 17.1 | +0.8 | 26.0 | 31 Aug | 5.7 | -0.2 | 1.1 | 18 Jul | 159.8 | 138.6 | high | 115% |
| Katanning | 15.8 | +0.5 | 22.3 | 11 Aug | 6.0 | -0.2 | 1.1 | 18 Jul | 154.2 | 189.8 | v low | 81% |
| Lake Grace | 17.0 | +0.6 | 26.0 | 31 Aug | 5.5 | -0.2 | -1.1 | 18 Jul | 80.8 | 104.7 | low | 77% |
| Narembeen | 18.5 | +1.3 | 27.7 | 11 Aug | 5.5 | -0.2 | -1.6 | 25 Jul | 90.5 | 143.5 | v low | 63% |
| Narrogin | 16.5 | +1.4 | 22.6 | 31 Aug | 5.0 | -0.6 | -1.2 | 9 Jul | 114.8 | 241.7 | lowest | 47% |
| Newdegate Research Station | 17.0 | +1.0 | 26.2 | 31 Aug | 4.0 | -0.4 | -2.6 | 20 Jul | ||||
| Ongerup | 16.5 | +1.0 | 25.1 | 11 Aug | 5.7 | -0.4 | -0.5 | 18 Jul | 127.0 | 141.8 | average | 90% |
| Pingelly | 17.1 | +1.2 | 23.0 | 11 Aug | 5.4 | -0.5 | -1.0 | 19 Jul | 115.8 | 225.9 | v low | 51% |
| Ravensthorpe | 17.8 | +0.9 | 28.3 | 11 Aug | 7.1 | 0.0 | 2.3 | 18 Jul | 142.5 | 134.5 | average | 106% |
| Wagin | 16.8 | +0.9 | 23.2 | 11 Aug | 5.1 | -0.7 | -1.0 | 9 Jul | 104.7 | 200.7 | lowest | 52% |
| Wandering | 16.7 | +0.4 | 22.9 | 11 Aug | 4.0 | -0.3 | -2.5 | 9 Jul | 201.8 | 261.9 | low | 77% |
| Eucla (district 11) | ||||||||||||
| Balladonia | 19.2 | +1.0 | 28.2 | 12 Aug | 4.9 | -0.4 | -1.4 | 14 Aug | 57.7 | 67.7 | average | 85% |
| Eucla | 19.2 | +0.6 | 29.7 | 27 Aug | 6.9 | -0.7 | 0.9 | 15 Jun | 58.2 | 81.5 | low | 71% |
| Eyre | 19.9 | +1.1 | 28.6 | 12 Aug | 3.7 | -2.5 | -4.0 | 15 Jun | 77.5 | 104.3 | low | 74% |
| Forrest | 20.1 | +0.7 | 31.5 | 27 Aug | 4.0 | -1.7 | -1.9 | 1 Jul | 12.6 | 48.8 | v low | 26% |
| Red Rocks Point | 19.3 | 28.5 | 31 Aug | 7.5 | 1.3 | 15 Jun | 63.2 | |||||
| South East (district 12) | ||||||||||||
| Bulga Downs | 21.2 | 31.6 | 12 Aug | 5.4 | -1.3 | 7 Jul | 58.4 | 67.0 | average | 87% | ||
| Kalgoorlie-Boulder Airport | 18.5 | +0.9 | 27.4 | 12 Aug | 5.8 | +0.2 | -1.1 | 14 Aug | 54.2 | 74.4 | average | 73% |
| Laverton Aero | 20.0 | +1.0 | 30.5 | 27 Aug | 6.4 | -0.3 | -1.0 | 14 Jul | 26.4 | 42.9 | average | 62% |
| Leinster Aero | 20.5 | +0.8 | 30.0 | 27 Aug | 6.6 | -0.4 | 0.5 | 23 Jun | 21.8 | 45.2 | low | 48% |
| Leonora | 20.0 | +0.6 | 29.6 | 12 Aug | 6.3 | -0.5 | 0.1 | 16 Jul | 41.7 | 60.1 | average | 69% |
| Leonora Aero | 20.3 | 30.3 | 12 Aug | 6.1 | -0.8 | 16 Jul | 32.6 | |||||
| Munglinup West | 17.6 | +0.2 | 27.4 | 11 Aug | 6.8 | -0.2 | 2.8 | 8 Aug | 166.6 | 115.8 | v high | 144% |
| Norseman Aero | 18.4 | +0.2 | 27.5 | 26 Aug | 3.9 | -0.4 | -3.6 | 14 Aug | 53.0 | 56.3 | average | 94% |
| Salmon Gums Res.Stn. | 18.0 | +1.3 | 27.8 | 12 Aug | 4.4 | -0.6 | -3.3 | 9 Aug | 83.0 | 108.6 | low | 76% |
| Southern Cross Airfield | 18.3 | +0.7 | 28.9 | 11 Aug | 4.0 | +0.3 | -2.9 | 25 Jul | 83.8 | 91.4 | average | 92% |
| North East (district 13) | ||||||||||||
| Giles Meteorological Office | 21.5 | +0.5 | 32.5 | 28 Aug | 6.1 | -1.8 | 0.0 | 23 Jun | 1.6 | 39.3 | low | 4% |
| Telfer Aero | 27.3 | +1.0 | 36.0 | 28 Aug | 10.7 | -1.0 | 4.4 | 4 Jul | 3.6 | 30.6 | low | 12% |
| Warburton Airfield | 22.2 | +0.7 | 33.8 | 28 Aug | 4.7 | -1.7 | -4.2 | 8 Jul | 3.0 | 41.0 | low | 7% |
| Wiluna | 22.1 | +1.8 | 31.5 | 27 Aug | 12.5 | 49.0 | low | 26% | ||||
| Offshore Islands (district 200) | ||||||||||||
| Varanus Island | 24.7 | -0.1 | 28.0 | 5 Aug | 19.9 | -0.3 | 17.0 | 6 Jul | 35.2 | 30.8 | average | 114% |
Extremes Maps Records Summaries Important notes the top
A Seasonal 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.
This statement has been prepared based on information available at 10 am on Monday 3 September 2012. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
Averages 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.
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.
Records in this summary are based on sites with at least 30 years of data.
For PDF files of Perth Metro climate statistics for other months, please click here for extremes and here for averages.