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Data as of 2025-12-31
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Built 2026-10-15 (15 October 2026)

Wittenoom Aero Weather Records (ASN00005055)

Record envelope, standing records and threshold days for Wittenoom Aero (ASN00005055), Australia, with 36 years of record.

Key Facts for Wittenoom Aero

  • Wittenoom Aero (ASN00005055) is a weather station in Australia at -22.23 latitude and 118.34 longitude, 442 m (1,449 ft) above sea level.
  • The station reports from 1975 to 2010, 36 years of record.
  • 0 records set at Wittenoom Aero still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Wittenoom Aero set a daily record precipitation of 25.6 mm (1.0 in) on 15 January 2010.

About the Station

  • Location: Australia, -22.23 latitude, 118.34 longitude.
  • Elevation: 442 m (1,449 ft).
  • Period of record: 1975 to 2010, 36 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Wittenoom Aero, with 2026 drawn through them The band shows the record high and record low for each calendar day at Wittenoom Aero. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Wittenoom Aero. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Wittenoom Aero, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Wittenoom Aero by the year they were set 0 records at Wittenoom Aero still stand. 00000000000
0 records at Wittenoom Aero still stand.
Standing records at Wittenoom Aero by the year they were set
Year setStanding records

Wettest Day of Each Month

Dec: 212.2 mm (8.4 in)
Record daily precipitation for each month at Wittenoom Aero The wettest day on record for each calendar month at Wittenoom Aero. The most was 212.2 mm (8.4 in) on 9 December 1975. 0100200300 Jan: 132.4 mm (5.2 in), 8 January 1997 Jan Feb: 120.0 mm (4.7 in), 12 February 1995 Feb Mar: 162.0 mm (6.4 in), 23 March 1999 Mar Apr: 91.4 mm (3.6 in), 8 April 2006 Apr May: 61.5 mm (2.4 in), 19 May 1984 May Jun: 38.6 mm (1.5 in), 13 June 1989 Jun Jul: 52.6 mm (2.1 in), 10 July 2005 Jul Aug: 40.0 mm (1.6 in), 1 August 1998 Aug Sep: 23.0 mm (0.9 in), 30 September 1986 Sep Oct: 15.8 mm (0.6 in), 22 October 1996 Oct Nov: 25.0 mm (1.0 in), 22 November 2000 Nov Dec: 212.2 mm (8.4 in), 9 December 1975 Dec
The wettest day on record for each calendar month at Wittenoom Aero. The most was 212.2 mm (8.4 in) on 9 December 1975.
Record daily precipitation for each month at Wittenoom Aero
MonthRecord daily precipitation (mm)Date
Jan132.4 mm (5.2 in)8 January 1997
Feb120.0 mm (4.7 in)12 February 1995
Mar162.0 mm (6.4 in)23 March 1999
Apr91.4 mm (3.6 in)8 April 2006
May61.5 mm (2.4 in)19 May 1984
Jun38.6 mm (1.5 in)13 June 1989
Jul52.6 mm (2.1 in)10 July 2005
Aug40.0 mm (1.6 in)1 August 1998
Sep23.0 mm (0.9 in)30 September 1986
Oct15.8 mm (0.6 in)22 October 1996
Nov25.0 mm (1.0 in)22 November 2000
Dec212.2 mm (8.4 in)9 December 1975

Latest Records

20
Latest records at Wittenoom Aero
DateStationRecordValueBeat old record byOld record stoodSignificance
15 January 2010Wittenoom Aero, AUdaily rain25.6 mm (1.0 in)3.0 mm (0.12 in)2 years4 of 100 (Routine)
8 November 2009Wittenoom Aero, AUdaily rain2.0 mm (0.08 in)2.0 mm (0.08 in)34 years16 of 100 (Routine)
7 November 2009Wittenoom Aero, AUdaily rain11.6 mm (0.5 in)10.8 mm (0.4 in)15 years20 of 100 (Routine)
25 June 2009Wittenoom Aero, AUdaily rain13.8 mm (0.5 in)11.2 mm (0.4 in)24 years20 of 100 (Routine)
18 April 2009Wittenoom Aero, AUdaily rain3.2 mm (0.13 in)0.8 mm (0.03 in)3 years3 of 100 (Routine)
17 February 2009Wittenoom Aero, AUdaily rain80.0 mm (3.1 in)60.0 mm (2.4 in)29 years42 of 100 (Notable)
15 February 2009Wittenoom Aero, AUdaily rain22.4 mm (0.9 in)19.4 mm (0.8 in)25 years20 of 100 (Routine)
6 January 2009Wittenoom Aero, AUdaily rain17.8 mm (0.7 in)4.8 mm (0.19 in)25 years12 of 100 (Routine)
31 December 2008Wittenoom Aero, AUdaily rain38.4 mm (1.5 in)1.4 mm (0.06 in)12 years6 of 100 (Routine)
28 December 2008Wittenoom Aero, AUdaily rain15.4 mm (0.6 in)0.4 mm (0.02 in)29 years11 of 100 (Routine)
23 November 2008Wittenoom Aero, AUdaily rain22.4 mm (0.9 in)19.4 mm (0.8 in)4 years20 of 100 (Routine)
9 October 2008Wittenoom Aero, AUdaily rain1.4 mm (0.06 in)0.6 mm (0.02 in)32 years13 of 100 (Routine)
29 August 2008Wittenoom Aero, AUdaily rain2.4 mm (0.09 in)2.4 mm (0.09 in)33 years14 of 100 (Routine)
30 June 2008Wittenoom Aero, AUdaily rain2.4 mm (0.09 in)0.2 mm (0.01 in)12 years6 of 100 (Routine)
10 June 2008Wittenoom Aero, AUdaily rain36.0 mm (1.4 in)28.9 mm (1.1 in)9 years34 of 100 (Routine)
19 February 2008Wittenoom Aero, AUdaily rain41.6 mm (1.6 in)0.4 mm (0.02 in)26 years11 of 100 (Routine)
10 February 2008Wittenoom Aero, AUdaily rain59.2 mm (2.3 in)24.4 mm (1.0 in)10 years18 of 100 (Routine)
15 January 2008Wittenoom Aero, AUdaily rain22.6 mm (0.9 in)1.6 mm (0.06 in)8 years5 of 100 (Routine)
26 December 2007Wittenoom Aero, AUdaily rain5.6 mm (0.22 in)0.4 mm (0.02 in)28 years11 of 100 (Routine)
14 October 2007Wittenoom Aero, AUdaily rain4.4 mm (0.17 in)4.4 mm (0.17 in)32 years16 of 100 (Routine)

Extremes by Year

1975 to 2010
Yearly extremes at Wittenoom Aero: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)212.2 mm (8.4 in)197560.8 mm (2.4 in)36
Wettest five days (Rx5day)395.5 mm (15.6 in)197595.4 mm (3.8 in)36
Longest dry spell (CDD)177 days199999 days36

Wettest day (Rx1day)

Wettest day (Rx1day) at Wittenoom Aero by year The wettest day of the year at Wittenoom Aero, 1975 to 2010. The record is 212.2 mm (8.4 in) in 1975, marked on the chart; the median year is 60.8 mm (2.4 in). 0501001502002501980199020002010Record: 212.2 mm (8.4 in) in 1975
The wettest day of the year at Wittenoom Aero, 1975 to 2010. The record is 212.2 mm (8.4 in) in 1975, marked on the chart; the median year is 60.8 mm (2.4 in).
Wettest day (Rx1day) at Wittenoom Aero by year
YearWettest day (Rx1day)
1975212.2 mm (8.4 in)
1976100.4 mm (4.0 in)
197740.0 mm (1.6 in)
197851.6 mm (2.0 in)
197967.8 mm (2.7 in)
198080.0 mm (3.1 in)
198141.2 mm (1.6 in)
198290.0 mm (3.5 in)
198326.0 mm (1.0 in)
1984100.0 mm (3.9 in)
198562.0 mm (2.4 in)
198639.6 mm (1.6 in)
198747.0 mm (1.9 in)
198866.5 mm (2.6 in)
198976.6 mm (3.0 in)
199052.4 mm (2.1 in)
199132.8 mm (1.3 in)
199259.0 mm (2.3 in)
199342.3 mm (1.7 in)
199448.0 mm (1.9 in)
1995120.0 mm (4.7 in)
199667.6 mm (2.7 in)
1997132.4 mm (5.2 in)
199840.0 mm (1.6 in)
1999186.8 mm (7.4 in)
200092.2 mm (3.6 in)
2001117.8 mm (4.6 in)
200233.6 mm (1.3 in)
2003130.4 mm (5.1 in)
200459.6 mm (2.3 in)
200552.6 mm (2.1 in)
200695.2 mm (3.7 in)
200744.0 mm (1.7 in)
200859.2 mm (2.3 in)
200984.0 mm (3.3 in)
201025.6 mm (1.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Wittenoom Aero by year The wettest five days of the year at Wittenoom Aero, 1975 to 2010. The record is 395.5 mm (15.6 in) in 1975, marked on the chart; the median year is 95.4 mm (3.8 in). 01002003004001980199020002010Record: 395.5 mm (15.6 in) in 1975
The wettest five days of the year at Wittenoom Aero, 1975 to 2010. The record is 395.5 mm (15.6 in) in 1975, marked on the chart; the median year is 95.4 mm (3.8 in).
Wettest five days (Rx5day) at Wittenoom Aero by year
YearWettest five days (Rx5day)
1975395.5 mm (15.6 in)
1976191.6 mm (7.5 in)
197744.6 mm (1.8 in)
197898.0 mm (3.9 in)
197981.8 mm (3.2 in)
1980146.8 mm (5.8 in)
198151.3 mm (2.0 in)
1982149.5 mm (5.9 in)
198341.2 mm (1.6 in)
1984248.9 mm (9.8 in)
198585.2 mm (3.4 in)
198670.0 mm (2.8 in)
1987108.2 mm (4.3 in)
1988112.3 mm (4.4 in)
198990.3 mm (3.6 in)
199096.8 mm (3.8 in)
199163.5 mm (2.5 in)
199268.2 mm (2.7 in)
199365.3 mm (2.6 in)
199492.5 mm (3.6 in)
1995214.6 mm (8.4 in)
199668.8 mm (2.7 in)
1997177.0 mm (7.0 in)
199853.6 mm (2.1 in)
1999254.1 mm (10.0 in)
2000155.4 mm (6.1 in)
2001143.3 mm (5.6 in)
200295.1 mm (3.7 in)
2003252.4 mm (9.9 in)
200461.6 mm (2.4 in)
200595.7 mm (3.8 in)
2006232.1 mm (9.1 in)
200773.6 mm (2.9 in)
200891.0 mm (3.6 in)
2009124.8 mm (4.9 in)
201039.0 mm (1.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Wittenoom Aero by year The longest dry spell of the year at Wittenoom Aero, 1975 to 2010. The record is 177 days in 1999, marked on the chart; the median year is 99 days. 0501001502001980199020002010Record: 177 days in 1999
The longest dry spell of the year at Wittenoom Aero, 1975 to 2010. The record is 177 days in 1999, marked on the chart; the median year is 99 days.
Longest dry spell (CDD) at Wittenoom Aero by year
YearLongest dry spell (CDD)
197596 days
1976171 days
1977147 days
197860 days
197975 days
198038 days
1981151 days
198251 days
1983107 days
198487 days
1985100 days
198660 days
1987135 days
198897 days
198996 days
1990143 days
199196 days
199276 days
1993122 days
1994129 days
1995123 days
199695 days
1997106 days
199882 days
1999177 days
2000177 days
2001160 days
2002162 days
200348 days
200499 days
2005123 days
200699 days
200777 days
200867 days
2009118 days
201035 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

35 years, 1975 to 2009

A day with at least 64.2 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 251.0 mm (9.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Wittenoom Aero: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years64.2 mm (2.5 in)
5 years99.0 mm (3.9 in)
10 years127.2 mm (5.0 in)
25 years169.9 mm (6.7 in)
50 years207.5 mm (8.2 in)Longer than the 35 years of record
100 years251.0 mm (9.9 in)Longer than the 35 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 35 years of values from 1975 to 2009.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 212.2 mm (8.4 in) in 1975; 186.8 mm (7.4 in) in 1999; 132.4 mm (5.2 in) in 1997.

Download the Data

  • Data for Wittenoom Aero standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Wittenoom Aero threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).