Friday, 1 April 2022 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0

Western Australia in March 2022: Above average night-time temperatures

Rainfall was above average around the eastern Pilbara and Southern Interior, the state's mid-west and eastern South West Land Division, while rainfall was close to average for the remainder of the state. Mean minimum temperatures were above average for most of the state, and it was the fifth-highest mean minimum temperature on record for the state as a whole. Mean maximum temperatures in the east, north-west, and along the west coast were above average, and it was close to average for the rest of state.

Wet in eastern Pilbara and western WA

  • Rainfall was above average around the eastern Pilbara and Southern Interior, in the state's mid-west and eastern South West Land Division (SWLD), while rainfall was close to average for the remainder of the state.
  • Rainfall was 16% above the 1961-1990 average for Western Australia.
  • A number of sites in the Gascoyne, and the northern and eastern SWLD had their wettest March on reocrd or wettest March for at least 20 years.
  • Ex-tropical cyclone Anika reached category 1 cyclone strength and crossed the far west Kimberley coast on 2 March. Daily rainfall 50–100 mm was recorded in the west Kimberley, east Pilbara and Southern Interior in the first 3 days of March, with a number of March daily rainfall record. Cooragoora in the east Pilbara coast recorded 195 mm on the 3rd, the state's highest daily rainfall of the month.
  • A tropical low (ex-tropical cyclone Charlotte) lingered off the west coast in the last week of March. Thunderstorms and showers with isolated heavy falls in excess of 50 mm were recorded in the Gascoyne, Central West, Central Wheat Belt and Great Southern districts.
  • Murgoo in the Gascoyne recorded a daily rainfall of 175 mm on the 30th, which was its all-time highest daily rainfall on record in 132 years of rainfall observations.
  • Murgoo recorded a monthly total of 218.2 mm, which was about 10 times of its March average rainfall, and its wettest March on record and the second-highest monthly total, behind 239.7 mm in February 2017.

Above average night-time temperatures

  • Mean minimum temperatures were above average across most of WA, while mean maximum temperatures were above average in the north-west, along the west coast and in the state's east.
  • Western Australia mean maximum temperature was 1.79 °C above the 1961-1990 average, the eighth-highest for March on record.
  • Western Australia mean minimum temperature was 1.39 °C above the 1961-1990 average, the fifth-highest for March on record.
  • Roebourne Aero recorded a maximum temperature of 47.1 °C on the 16th, which was its second-highest temperature in March, and an Australian late season record. The previous latest date of 47 °C was 11 March (48.5 °C at Emu Creek Station on 11 March 2019).
  • Telfer Aero recorded a minimum temperature of 33.3 °C on the 16th, which was its highest minimum temperature in March on record, and the state and national equal fourth-highest minimum temperature for March on record,

Tropical Cyclone Anika made the second landfall

  • Ex-Tropical Cyclone Anika moved back to waters just north of Beagle Bay (the west Kimberley coast) on 1 March, and tracked south and south-westward. Ex-TC Anika eventually re-intensified into a tropical cyclone and crossed the coast again near Wallal Downs in the far west Kimberley on the 2nd.
  • Anika tracked south-eastward through eastern Pilbara and weakened to a tropical low on the 3rd. Very heavy rain and damaging wind gusts were recorded, with a wind gust of 107 km/h at TelferAero.

Severe Tropical Cyclone Charlotte remained offshore

  • A tropical low developed and named Tropical Cyclone Charlotte off the north-west Western Australia coast on 21 March, and intensified to category 4 strength on the 22nd, before weakening to a tropical low on the 24th, to the west of Karratha.
  • The tropical low (ex-TC Charlotte) moved southward and lingered offshore from the west coast and finally dissipated towards the end of March.
  • The tropical low provided tropical moistures for thunderstorms and showers to the state's mid-west and eastern South West Land Division in the last week of March.

Further information

Media
(03) 9669 4057

Extremes Maps Records Summaries Important notes the top

Extremes in March 2022
Hottest day 47.1 °C at Roebourne Aero on the 16th
Warmest days on average 40.2 °C at Marble Bar
Coolest days on average 22.6 °C at Albany
Coldest day 16.1 °C at Katanning on the 28th
Coldest night

3.5 °C at Wandering on the 3rd

Coolest nights on average 13.4 °C at Wandering
Warmest nights on average 28.6 °C at Bedout Island
Warmest night 33.3 °C at Telfer Aero on the 16th
Warmest on average overall 33.6 °C at Marble Bar
33.4 °C at Roebourne Aero
32.8 °C at Karratha Aero
Coolest on average overall 18.7 °C at Windy Harbour
19.3 °C at Jacup
19.5 °C at Rocky Gully
Wettest overall 353.0 mm at Kilto Station
289.2 mm at Country Downs
250.0 mm at Bidyadanga
Wettest day 195.0 mm at Cooragoora on the 3rd
175.0 mm at Murgoo on the 30th
172.5 mm at Kilto Station on the 1st
Strongest wind gust 206 km/h at Bickley on the 21st
161 km/h at Bickley on the 20th
130 km/h at Port Hedland Airport on the 25th

Extremes Maps Records Summaries Important notes the top

Maps
ObservedAnomalyDecile rank
Total
rainfall		 Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures		 Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures		 Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

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
Murgoo 175.0 on the 30th 160.0 on the 22nd in 1927 122
Berkshire Valley 94.0 on the 30th 76.0 on the 21st in 1999 114
Goomalling 73.8 on the 29th 64.3 on the 6th in 1925 114
Warrawagine 161.6 on the 3rd 134.0 on the 28th in 2004 104
Arena 75.0 on the 30th 51.2 on the 10th in 2000 42
Nita Downs 108.0 on the 3rd 81.0 on the 29th in 1989 42
Kilto Station 172.5 on the 1st 100.6 on the 25th in 2004 41


Record highest March total rainfall
New record
(mm)		 Old
record		 Years of
record		 Average for
March
Murgoo 218.2 190.2 in 1927 133 23.3
Arena 77.2 70.4 in 1999 42 15.6
Tabletop 54.6 53.2 in 2021 20 12.2

Highest March total rainfall for at least 20 years
Observed
(mm)		 Most recent
higher		 Average for
March
Badgebup 86.6 90.0 in 1993 21.8
Moningarin 87.0 186.6 in 1999 24.8
Yandanooka 85.4 125.4 in 1999 19.0
Bowgada 74.6 118.8 in 2000 19.9
Doodlakine 53.4 63.4 in 2000 19.9
Jurien Bay 74.6 85.0 in 1999* 15.4
Oaklands 89.0 114.2 in 1999* 21.1
Thundelarra 98.4 102.4 in 2000* 30.4
Perenjori 63.6 126.8 in 2000* 23.2

* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported

 


Record highest March temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
March
Mount Magnet Aero 42.7 on the 20th 42.4 on the 11th in 2019 27 33.3


Record highest March daily minimum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
March
Telfer Aero 33.3 on the 16th 31.9 on the 18th in 2020 48 24.2
Cygnet Bay 29.5 on the 23rd = 29.5 on the 18th in 2018 35 24.7
Laverton Aero 28.7 on the 1st = 28.7 on the 10th in 1998 31 18.4
Barrow Island Airport 30.7 on the 17th 30.4 on the 29th in 2018 24 26.6
Varanus Island 30.7 on the 16th 30.5 on the 7th in 2017 23 27.1


Record highest March mean daily minimum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
March
Albany 17.2 = 17.2 in 2005 105 14.8
Port Hedland Airport 26.5 = 26.5 in 2019 73 24.6
Cygnet Bay 26.5 = 26.5 in 2018 34 24.7
Karratha Aero 27.9 27.7 in 2005 28 26.0
Swanbourne 19.1 = 19.1 in 2011 28 17.5
Hopetoun North 15.9 15.7 in 2010 26 14.2

Highest March mean daily minimum temperature for at least 20 years
Observed
(°C)		 Most recent
higher		 Average for
March
Esperance 16.4 17.0 in 1992 15.2


Record highest March mean temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
March
Port Hedland Airport 32.6 32.5 in 2018 73 30.7
Karratha Aero 32.8 = 32.8 in 2018 28 31.1


Extremes Maps Records Summaries Important notes the top

Summary statistics for March 2022
Maximum temperatures
(°C)		 Minimum temperatures
(°C)		 Rainfall
(millimetres)
Mean for
March
2022		 Diff
from
average		 Highest for
March
2022		 Mean for
March
2022		 Diff
from
average		 Lowest for
March
2022		 Total for
March
2022		 Average
for
March		 Rank of
March
2022		 Fraction of
March
average
North Kimberley (district 01)
Doongan 34.3 +0.9 38.8 6th 22.7 +0.7 20.5 14th 155.1 190.2 average 82%
Mount Elizabeth 34.0 +1.2 36.8 6th 21.1 +0.5 16.9 31st 173.7 165.8 average 105%
Truscott 33.3 +0.5 35.4 15th 25.4 +0.1 21.9 8th 126.0 181.5 average 69%
Wyndham Aero 37.5 +1.2 40.4 22nd 26.0 +0.3 22.8 14th 46.2 137.7 low 34%
East Kimberley (district 02)
Argyle Aerodrome 38.6 +2.8 42.0 5th 25.8 +0.9 22.0 25th 90.0 142.4 average 63%
Halls Creek Airport 38.2   41.9 6th 22.9   16.2 30th 28.0
Kununurra Aero 37.0 +1.2 40.7 5th 24.4 +0.2 22.0 31st 59.2 141.6 average 42%
Warmun 38.6 +2.6 43.0 6th 24.3 +1.1 17.5 30th 60.2 115.4 average 52%
West Kimberley (district 03)
Bidyadanga 35.9 +0.5 41.5 8th 24.1 -0.9 20.5 10th 250.0 94.8 v high 264%
Broome Airport 34.4 +0.4 38.3 7th 26.8 +1.3 23.3 1st 129.2 98.0 high 132%
Curtin Aero 36.5 +0.3 39.9 7th 24.4 +0.2 21.0 25th 203.6 144.9 high 141%
Cygnet Bay 33.8 +0.1 36.0 21st 26.5 +1.8 21.7 1st 150.9 160.7 average 94%
Derby Aero 35.9 +0.5 38.9 21st 25.7 +0.6 22.0 25th 141.6 130.5 high 109%
Fitzroy Crossing Aero 38.1 +1.0 41.7 16th 24.5 +0.5 21.3 25th 99.2 107.7 average 92%
Yampi Sound (Defence) 35.8   39.3 16th 24.7   21.1 18th 93.0
De Grey (district 04)
Bedout Island 34.4 +0.8 36.6 17th 28.6 +1.0 25.1 3rd
Karratha Aero 37.7 +1.5 42.9 16th 27.9 +1.9 25.9 29th 2.2 45.8 low 5%
Legendre Island 34.7 +1.0 39.1 16th 28.5 +1.2 24.8 30th
Mandora 37.8 +0.8 42.6 7th 24.9 +0.9 21.0 26th 213.6 73.1 v high 292%
Marble Bar 40.2 +2.0 43.9 15th 26.6 +1.4 21.9 6th 3.8 74.6 v low 5%
Port Hedland Airport 38.7 +1.9 43.7 17th 26.5 +1.9 21.7 2nd 21.8 54.8 average 40%
Roebourne Aero 40.0 +2.2 47.1 16th 26.8 +1.5 24.2 10th 1.8 39.0 low 5%
Fortescue (district 05)
Barrow Island Airport 34.7 +1.2 40.1 18th 27.2 +0.6 24.2 31st 31.6 53.6 average 59%
Karijini North 38.3   42.1 1st 25.8   20.9 5th 31.2
Learmonth Airport 37.2 +0.7 42.9 16th 23.9 +0.9 20.4 3rd 15.2 40.5 average 38%
Mardie 38.9 +1.3 45.1 17th 26.4 +2.1 22.8 29th 13.4 48.5 average 28%
Onslow Airport 37.4 +1.2 44.8 17th 26.2 +1.9 23.4 31st 10.4 70.0 average 15%
Thevenard Island 34.7 +0.7 40.4 17th 27.1 +0.9 24.2 31st 15.4 34.2 average 45%
West Gascoyne (district 06)
Carnarvon Airport 33.4 +1.7 42.3 9th 22.4 +0.2 18.7 3rd 0.8 16.0 average 5%
Denham 32.3 +1.1 41.0 9th 23.5 +1.3 18.0 3rd 8.6 14.5 average 59%
Emu Creek Station 39.6 +1.1 45.2 18th 25.1 +1.2 22.0 3rd 6.9 40.3 average 17%
Murchison 36.0 +0.5 43.1 19th 20.2 -0.2 13.9 3rd 33.2 30.9 high 107%
Shark Bay Airport 34.6 +0.4 42.0 9th 21.8 +0.5 17.5 3rd 9.8 16.8 high 58%
East Gascoyne (district 07)
Newman Aero 37.0 +1.4 41.9 1st 24.4 +2.3 17.9 5th 31.8 40.8 average 78%
Paraburdoo Aero 38.0 +1.0 42.6 17th 25.3 +1.8 20.9 10th 79.4 49.5 high 160%
Murchison (district 07A)
Meekatharra Airport 35.0 +0.7 41.3 20th 22.7 +1.3 16.9 3rd 48.4 29.6 high 164%
Mount Magnet Aero 34.4 +1.1 42.7 20th 20.8 +0.4 14.8 3rd 88.0 36.9 high 238%
Paynes Find 33.6 +0.5 40.7 20th 19.0 +0.7 13.3 3rd 75.6 26.9 high 281%
North Coast (district 08)
Dalwallinu 31.9 +0.3 39.9 18th 16.6 0.0 9.5 3rd 25.8 27.8 average 93%
Geraldton Airport 32.9 +1.1 40.5 9th 18.4 -0.1 12.0 3rd 23.2 17.4 high 133%
Kalbarri 33.2 +0.6 40.5 7th 20.5 +1.2 16.0 3rd 14.0 11.9 high 118%
Morawa Airport 33.7 +0.3 41.3 18th 18.5 +0.3 13.8 3rd 62.4 19.7 high 317%
Mullewa 34.0 +0.2 40.6 11th 19.6 +1.1 12.4 3rd 34.5 20.1 high 172%
North Island 29.1 +0.9 34.6 9th 22.6 +0.7 19.0 27th 8.8 5.9 high 149%
Wongan Hills 30.9 -0.1 38.8 18th 17.0 +0.6 10.4 3rd 45.0 21.0 high 214%
Central Coast (district 09)
Badgingarra Research Stn 31.0 -0.9 39.2 11th 17.4 +0.9 11.3 3rd 0 15.5 lowest 0%
Bickley 27.5 -0.4 35.5 10th 15.8 +1.1 8.9 3rd 7.8 26.5 low 29%
Garden Island HSF 28.4 +1.4 37.7 11th 19.4 +1.1 14.2 3rd 13.6 16.6 average 82%
Gingin Aero 30.8 0.0 39.9 11th 16.7 +1.3 5.8 3rd 13.2 18.9 average 70%
Jandakot Aero 30.0 +0.4 38.2 11th 17.7 +2.1 8.2 3rd 5.6 16.7 average 34%
Jurien Bay 31.5 +2.0 38.2 7th 18.3 +1.6 11.0 3rd 74.6 15.4 v high 484%
Karnet 27.5 -0.4 35.3 10th 15.8 +1.5 7.6 3rd 13.0 25.2 average 52%
Millendon (Swan Valley) 30.8   39.0 10th 17.8   9.2 3rd 6.0
Pearce RAAF 31.0 +0.4 39.5 11th 17.8 +1.8 10.6 3rd 7.6 16.4 average 46%
Perth Airport 30.5 +0.7 39.0 11th 17.8 +1.8 8.7 3rd 4.8 16.2 average 30%
Perth Metro 30.2 +0.6 39.1 11th 18.5 +1.7 10.4 3rd 5.0 19.9 low 25%
Rottnest Island 27.3 +1.2 36.4 11th 19.7 +0.9 15.3 2nd 13.8 18.5 average 75%
Swanbourne 28.9 +0.1 38.9 11th 19.1 +1.6 11.3 3rd 10.8 20.9 average 52%
South Coast (district 09A)
Albany 22.6 +0.3 34.4 18th 17.2 +2.4 11.2 21st 33.2 38.3 average 87%
Albany Airport 23.9 -0.2 36.6 18th 15.6 +1.8 11.1 3rd 34.2 41.2 average 83%
Bridgetown 27.2 -0.1 38.4 11th 13.5 +1.5 4.2 23rd 16.6 21.9 average 76%
Bunbury 28.0 +0.3 35.1 10th 16.5 +2.1 7.9 3rd 8.6 19.9 average 43%
Busselton Aero 28.2 +0.4 37.1 11th 15.1 +1.5 7.4 3rd 7.8 20.1 low 39%
Cape Leeuwin 23.8 +1.1 27.9 25th 18.3 +1.6 15.5 3rd 25.0 28.5 average 88%
Cape Naturaliste 27.0 +2.4 36.3 11th 16.5 +1.4 12.1 3rd 20.2 23.1 average 87%
Collie East 27.5 -0.7 38.2 11th 13.7 +1.5 4.6 3rd 16.4 19.1 average 86%
Donnybrook 29.1 +1.1 40.0 11th     8.5 3rd 18.6 25.4 average 73%
Dwellingup 27.7 +0.6 37.7 11th 14.8 +1.8 6.5 3rd 16.6 26.6 average 62%
Esperance 25.3 +0.1 38.2 1st 16.4 +1.2 9.1 24th 20.4 29.5 average 69%
Esperance Aero 26.2 +0.1 37.9 1st 15.2 +0.6 9.1 24th 20.0 33.1 average 60%
Hopetoun North 24.0 -0.7 38.3 18th 15.9 +1.7 9.0 25th 17.6 31.2 average 56%
Jarrahwood 28.6 +0.9 39.5 11th 13.8 +2.0 4.0 23rd 11.0 22.5 average 49%
Mandurah 28.5 +0.7 36.1 10th 19.2 +1.0 13.8 3rd 7.0 16.4 low 43%
Manjimup 26.4 +1.5 38.3 11th 14.0 +1.4 8.6 3rd 28.8 29.7 average 97%
North Walpole 24.1 +0.3 32.8 11th 15.5 +1.1 12.5 3rd 68.2 37.8 high 180%
Rocky Gully 25.0 -0.1 36.0 11th 14.0 +1.4 7.1 3rd 27.4 36.4 average 75%
Shannon 25.4 +0.6 36.8 11th 14.1 +1.4 8.5 3rd 26.6 33.5 average 79%
Windy Harbour 23.2 -0.2 28.0 25th 14.4 +0.7 8.0 28th 37.6 30.6 average 123%
North Central (district 10)
Bencubbin 30.9 +0.1 40.0 20th 17.0 +0.7 10.3 3rd 64.8 24.2 high 268%
Cunderdin Airfield 30.4 -0.6 39.8 18th 15.5 0.0 7.3 3rd 47.0 21.5 high 219%
Merredin 30.2 -0.2 40.0 18th 17.0 +0.7 9.8 3rd 30.0 21.4 high 140%
Northam 30.3 -0.5 39.4 18th 16.3 +0.9 10.0 3rd 14.0 19.3 average 73%
York 30.2 -0.5 39.2 11th 14.9 +0.5 7.5 3rd 7.8 21.1 average 37%
South Central (district 10A)
Beverley 30.8 0.0 40.0 11th 15.1 +0.3 7.0 3rd 5.2 16.9 average 31%
Brookton 29.2 -0.3 39.1 11th 14.8 +0.4 6.2 3rd 22.4 18.5 high 121%
Hyden 29.4 -0.6 39.3 18th 15.1 +0.8 8.0 4th 29.0 21.3 high 136%
Jacup 24.6 -1.3 37.6 18th 13.7 +1.0 6.7 3rd 68.4 33.0 high 207%
Katanning 26.1 -1.0 35.9 11th 13.9 +0.8 8.2 3rd 41.4 24.0 high 173%
Lake Grace 27.1 -1.0 38.1 18th 14.9 +0.4 7.6 3rd 39.6 20.9 high 189%
Narembeen 30.8 +0.5 39.2 18th 15.9 +0.9 9.4 3rd 17.4 21.2 average 82%
Narrogin 27.5 +0.1 37.0 11th 14.7 +1.6 8.0 3rd 18.2 21.3 average 85%
Newdegate Research Station 26.9 -1.1 38.0 18th 13.7 +0.9 8.1 23rd 50.2 22.1 high 227%
Pingelly 28.2 -0.3 37.2 11th       22.4 17.8 high 126%
Ravensthorpe 25.6 -1.0 38.0 18th 14.9 +1.2 8.5 24th 26.9 32.5 average 83%
Wagin 26.6 -1.1 36.5 11th 14.4 +0.9 7.2 3rd 21.0 20.7 high 101%
Wandering 28.2 -0.6 37.5 11th 13.4 +0.5 3.5 3rd 9.2 20.0 average 46%
Eucla (district 11)
Eucla 24.9 -0.3 41.3 2nd 16.7 +0.7 12.5 19th 16.0 22.7 average 70%
Eyre 26.5 +0.7 40.0 1st 15.2 +1.0 4.5 11th 12.7 26.7 average 48%
Forrest 29.7 +0.4 42.1 2nd 15.6 +1.1 10.0 25th 21.8 22.3 average 98%
Red Rocks Point 23.8 -0.6 27.8 16th 18.0 +0.9 13.5 11th 20.6 20.2 average 102%
South East (district 12)
Bulga Downs 33.8 +0.9 41.2 19th 19.2 +0.6 14.8 3rd 41.6 26.8 high 155%
Kalgoorlie-Boulder Airport 29.7 +0.2 39.8 1st 17.4 +1.3 11.5 4th 21.2 25.0 average 85%
Laverton Aero 32.4 +1.6 42.7 1st 19.8 +1.4 14.8 24th 6.8 38.1 low 18%
Leinster Aero 33.6 +1.8 41.4 1st 20.6 +1.4 16.7 25th 21.6 35.7 average 61%
Leonora Aero 33.3 +1.5 42.1 1st 20.3 +1.0 15.3 24th 8.0 40.7 low 20%
Munglinup West 26.2 -0.8 37.7 18th 14.4 +0.5 9.4 23rd 24.2 32.4 average 75%
Norseman Aero 28.8 0.0 39.3 1st 15.4 +1.2 7.1 4th 9.4 30.1 low 31%
Salmon Gums Res.Stn. 28.0 +0.7 37.5 1st 13.8 +1.2 3.8 24th 16.8 26.4 average 64%
Southern Cross Airfield 30.7 +0.2 40.3 20th 16.3 +0.8 7.1 3rd 38.2 36.2 average 106%
North East (district 13)
Carnegie 33.9 -0.5 44.1 1st 21.2 +0.9 13.5 7th 88.6 32.5 high 273%
Giles Meteorological Office 36.6 +2.7 41.1 16th 22.4 +1.7 17.7 10th 2.6 34.4 low 8%
Telfer Aero 37.8 +0.2 42.0 17th 25.3 +1.1 19.4 5th 175.8 71.5 high 246%
Warburton Airfield 35.8 +1.5 42.8 2nd 21.8 +1.6 17.2 5th 22.4 28.9 average 78%
Wiluna Aero 34.8   42.6 1st 21.8   18.0 5th 54.8
Offshore Islands (district 200)
Adele Island 31.5   33.7 16th 26.8   22.2 30th
Browse Island 30.8   32.9 31st 27.1   22.1 10th
Rowley Shoals 31.0   32.2 18th 28.6   23.5 3rd
Varanus Island 33.6 +0.9 37.9 17th 27.9 +0.8 23.3 29th 61.6 44.5 average 138%

Extremes Maps Records Summaries Important notes the top

Notes

The Monthly climate summary, generally published on the first working day of each month, lists 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. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

This statement has been prepared based on information available at 11 am on Friday 1 April 2022. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

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.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Further information

Media
(03) 9669 4057

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