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Built 2026-10-16 (16 October 2026)

Cossack Weather Records (ASN00004054)

Record envelope, standing records and threshold days for Cossack (ASN00004054), Australia, with 134 years of record.

Key Facts for Cossack

  • Cossack (ASN00004054) is a weather station in Australia at -20.68 latitude and 117.19 longitude, 7 m (23 ft) above sea level.
  • The station reports from 1882 to 2015, 134 years of record.
  • 0 records set at Cossack still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Cossack set a daily record precipitation of 1.0 mm (0.04 in) on 13 December 2012.

About the Station

  • Location: Australia, -20.68 latitude, 117.19 longitude.
  • Elevation: 7 m (23 ft).
  • Period of record: 1882 to 2015, 134 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Cossack, with 2026 drawn through them The band shows the record high and record low for each calendar day at Cossack. 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 Cossack. 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 Cossack, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
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Which Years Hold Standing Records

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

Wettest Day of Each Month

Apr: 336.0 mm (13.2 in)
Record daily precipitation for each month at Cossack The wettest day on record for each calendar month at Cossack. The most was 336.0 mm (13.2 in) on 16 April 1900. 0100200300400 Jan: 243.5 mm (9.6 in), 10 January 2006 Jan Feb: 190.0 mm (7.5 in), 28 February 2006 Feb Mar: 282.0 mm (11.1 in), 1 March 2004 Mar Apr: 336.0 mm (13.2 in), 16 April 1900 Apr May: 131.8 mm (5.2 in), 24 May 2005 May Jun: 64.0 mm (2.5 in), 14 June 1915 Jun Jul: 121.4 mm (4.8 in), 14 July 1897 Jul Aug: 42.7 mm (1.7 in), 20 August 1919 Aug Sep: 39.9 mm (1.6 in), 21 September 1904 Sep Oct: 8.6 mm (0.34 in), 26 October 1916 Oct Nov: 97.0 mm (3.8 in), 2 November 2011 Nov Dec: 52.8 mm (2.1 in), 20 December 1905 Dec
The wettest day on record for each calendar month at Cossack. The most was 336.0 mm (13.2 in) on 16 April 1900.
Record daily precipitation for each month at Cossack
MonthRecord daily precipitation (mm)Date
Jan243.5 mm (9.6 in)10 January 2006
Feb190.0 mm (7.5 in)28 February 2006
Mar282.0 mm (11.1 in)1 March 2004
Apr336.0 mm (13.2 in)16 April 1900
May131.8 mm (5.2 in)24 May 2005
Jun64.0 mm (2.5 in)14 June 1915
Jul121.4 mm (4.8 in)14 July 1897
Aug42.7 mm (1.7 in)20 August 1919
Sep39.9 mm (1.6 in)21 September 1904
Oct8.6 mm (0.34 in)26 October 1916
Nov97.0 mm (3.8 in)2 November 2011
Dec52.8 mm (2.1 in)20 December 1905

Latest Records

20
Latest records at Cossack
DateStationRecordValueBeat old record byOld record stoodSignificance
13 December 2012Cossack, AUdaily rain1.0 mm (0.04 in)1.0 mm (0.04 in)127 years20 of 100 (Routine)
10 December 2012Cossack, AUdaily rain18.7 mm (0.7 in)16.9 mm (0.7 in)17 years20 of 100 (Routine)
11 June 2012Cossack, AUdaily rain17.3 mm (0.7 in)13.7 mm (0.5 in)101 years20 of 100 (Routine)
7 June 2012Cossack, AUdaily rain50.8 mm (2.0 in)31.2 mm (1.2 in)104 years59 of 100 (Notable)
18 March 2012Cossack, AUdaily rain48.8 mm (1.9 in)21.9 mm (0.9 in)95 years42 of 100 (Notable)
17 March 2012Cossack, AUdaily rain18.0 mm (0.7 in)9.0 mm (0.35 in)5 years12 of 100 (Routine)
31 January 2012Cossack, AUdaily rain11.0 mm (0.4 in)3.4 mm (0.13 in)96 years20 of 100 (Routine)
13 January 2012Cossack, AUdaily rain50.2 mm (2.0 in)28.6 mm (1.1 in)104 years49 of 100 (Notable)
2 November 2011Cossack, AUmonthly rain97.0 mm (3.8 in)78.2 mm (3.1 in)116 years90 of 100 (Exceptional)
16 May 2011Cossack, AUdaily rain36.2 mm (1.4 in)36.0 mm (1.4 in)1 year25 of 100 (Routine)
10 April 2011Cossack, AUdaily rain1.3 mm (0.05 in)1.3 mm (0.05 in)124 years20 of 100 (Routine)
22 February 2011Cossack, AUdaily rain27.4 mm (1.1 in)1.6 mm (0.06 in)16 years15 of 100 (Routine)
17 February 2011Cossack, AUdaily rain19.8 mm (0.8 in)4.0 mm (0.16 in)1 year11 of 100 (Routine)
16 February 2011Cossack, AUdaily rain43.8 mm (1.7 in)10.5 mm (0.4 in)92 years40 of 100 (Notable)
13 February 2011Cossack, AUdaily rain30.1 mm (1.2 in)6.7 mm (0.26 in)95 years40 of 100 (Notable)
19 December 2010Cossack, AUdaily rain1.4 mm (0.06 in)1.1 mm (0.04 in)92 years20 of 100 (Routine)
17 December 2010Cossack, AUdaily rain6.1 mm (0.24 in)4.3 mm (0.17 in)16 years18 of 100 (Routine)
30 November 2010Cossack, AUdaily rain2.4 mm (0.09 in)2.4 mm (0.09 in)127 years20 of 100 (Routine)
15 September 2010Cossack, AUdaily rain15.1 mm (0.6 in)15.1 mm (0.6 in)127 years20 of 100 (Routine)
12 September 2010Cossack, AUdaily rain2.4 mm (0.09 in)2.4 mm (0.09 in)127 years20 of 100 (Routine)

Extremes by Year

1882 to 2015
Yearly extremes at Cossack: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)336.0 mm (13.2 in)190052.7 mm (2.1 in)56
Wettest five days (Rx5day)574.7 mm (22.6 in)190085.0 mm (3.3 in)56
Longest dry spell (CDD)305 days1994125 days56

Wettest day (Rx1day)

Wettest day (Rx1day) at Cossack by year The wettest day of the year at Cossack, 1882 to 2015. The record is 336.0 mm (13.2 in) in 1900, marked on the chart; the median year is 52.7 mm (2.1 in). 0100200300400190019201940196019802000Record: 336.0 mm (13.2 in) in 1900
The wettest day of the year at Cossack, 1882 to 2015. The record is 336.0 mm (13.2 in) in 1900, marked on the chart; the median year is 52.7 mm (2.1 in).
Wettest day (Rx1day) at Cossack by year
YearWettest day (Rx1day)
18820.0 mm (0.00 in)
18830.0 mm (0.00 in)
18840.0 mm (0.00 in)
18850.0 mm (0.00 in)
18860.0 mm (0.00 in)
18870.0 mm (0.00 in)
18880.0 mm (0.00 in)
18890.0 mm (0.00 in)
18900.0 mm (0.00 in)
18910.0 mm (0.00 in)
18920.0 mm (0.00 in)
18930.0 mm (0.00 in)
189444.5 mm (1.8 in)
18950.0 mm (0.00 in)
18960.0 mm (0.00 in)
1897121.4 mm (4.8 in)
1898325.6 mm (12.8 in)
189952.3 mm (2.1 in)
1900336.0 mm (13.2 in)
190176.7 mm (3.0 in)
1902102.9 mm (4.1 in)
190382.0 mm (3.2 in)
190449.5 mm (1.9 in)
190557.7 mm (2.3 in)
190646.2 mm (1.8 in)
1907111.0 mm (4.4 in)
190863.8 mm (2.5 in)
190961.7 mm (2.4 in)
191077.0 mm (3.0 in)
191155.4 mm (2.2 in)
1912228.6 mm (9.0 in)
191391.7 mm (3.6 in)
191425.4 mm (1.0 in)
191564.0 mm (2.5 in)
191699.6 mm (3.9 in)
1917183.9 mm (7.2 in)
1918112.3 mm (4.4 in)
191982.6 mm (3.3 in)
19929.0 mm (0.35 in)
199340.0 mm (1.6 in)
199443.2 mm (1.7 in)
199577.6 mm (3.1 in)
1996102.7 mm (4.0 in)
199753.1 mm (2.1 in)
19989.0 mm (0.35 in)
200316.5 mm (0.6 in)
2004282.0 mm (11.1 in)
2005131.8 mm (5.2 in)
2006243.5 mm (9.6 in)
2007109.4 mm (4.3 in)
200847.4 mm (1.9 in)
2009100.6 mm (4.0 in)
201023.5 mm (0.9 in)
201197.0 mm (3.8 in)
201250.8 mm (2.0 in)
201516.6 mm (0.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Cossack by year The wettest five days of the year at Cossack, 1882 to 2015. The record is 574.7 mm (22.6 in) in 1900, marked on the chart; the median year is 85.0 mm (3.3 in). 0200400600190019201940196019802000Record: 574.7 mm (22.6 in) in 1900
The wettest five days of the year at Cossack, 1882 to 2015. The record is 574.7 mm (22.6 in) in 1900, marked on the chart; the median year is 85.0 mm (3.3 in).
Wettest five days (Rx5day) at Cossack by year
YearWettest five days (Rx5day)
18820.0 mm (0.00 in)
18830.0 mm (0.00 in)
18840.0 mm (0.00 in)
18850.0 mm (0.00 in)
18860.0 mm (0.00 in)
18870.0 mm (0.00 in)
18880.0 mm (0.00 in)
18890.0 mm (0.00 in)
18900.0 mm (0.00 in)
18910.0 mm (0.00 in)
18920.0 mm (0.00 in)
18930.0 mm (0.00 in)
1894111.3 mm (4.4 in)
18950.0 mm (0.00 in)
18960.0 mm (0.00 in)
1897123.2 mm (4.9 in)
1898391.7 mm (15.4 in)
189975.4 mm (3.0 in)
1900574.7 mm (22.6 in)
1901104.7 mm (4.1 in)
1902138.4 mm (5.4 in)
1903114.6 mm (4.5 in)
190473.4 mm (2.9 in)
190581.1 mm (3.2 in)
190673.1 mm (2.9 in)
1907344.7 mm (13.6 in)
1908157.5 mm (6.2 in)
1909113.0 mm (4.4 in)
1910117.4 mm (4.6 in)
191188.9 mm (3.5 in)
1912235.0 mm (9.3 in)
1913193.8 mm (7.6 in)
191425.9 mm (1.0 in)
1915183.1 mm (7.2 in)
1916213.2 mm (8.4 in)
1917225.5 mm (8.9 in)
1918136.7 mm (5.4 in)
191982.6 mm (3.3 in)
19929.0 mm (0.35 in)
199352.1 mm (2.1 in)
199487.4 mm (3.4 in)
1995127.2 mm (5.0 in)
1996105.1 mm (4.1 in)
199769.2 mm (2.7 in)
19989.0 mm (0.35 in)
200317.5 mm (0.7 in)
2004357.3 mm (14.1 in)
2005158.8 mm (6.3 in)
2006272.0 mm (10.7 in)
2007146.6 mm (5.8 in)
200882.6 mm (3.3 in)
2009186.6 mm (7.3 in)
201017.0 mm (0.7 in)
2011138.7 mm (5.5 in)
2012114.3 mm (4.5 in)
201524.8 mm (1.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Cossack by year The longest dry spell of the year at Cossack, 1882 to 2015. The record is 305 days in 1994, marked on the chart; the median year is 125 days. 0100200300400190019201940196019802000Record: 305 days in 1994
The longest dry spell of the year at Cossack, 1882 to 2015. The record is 305 days in 1994, marked on the chart; the median year is 125 days.
Longest dry spell (CDD) at Cossack by year
YearLongest dry spell (CDD)
188259 days
188391 days
188492 days
188561 days
188691 days
188791 days
1888122 days
188991 days
189061 days
1891184 days
1892122 days
1893122 days
1894125 days
1895153 days
1896184 days
1897159 days
1898195 days
1899140 days
1900168 days
1901173 days
1902167 days
1903184 days
1904100 days
1905172 days
1906106 days
1907176 days
1908133 days
1909118 days
1910124 days
1911174 days
1912175 days
1913140 days
1914130 days
1915198 days
1916122 days
1917166 days
1918155 days
1919105 days
1992124 days
1993124 days
1994305 days
1995149 days
1996168 days
199754 days
199826 days
2003132 days
2004127 days
2005173 days
2006112 days
200759 days
2008118 days
2009170 days
201042 days
201139 days
201219 days
201517 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

32 years, 1894 to 2009

A day with at least 77.5 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 482.5 mm (19.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Cossack: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years77.5 mm (3.1 in)
5 years136.7 mm (5.4 in)
10 years190.5 mm (7.5 in)
25 years281.3 mm (11.1 in)
50 years370.3 mm (14.6 in)Longer than the 32 years of record
100 years482.5 mm (19.0 in)Longer than the 32 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, 32 years of values from 1894 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: 336.0 mm (13.2 in) in 1900; 325.6 mm (12.8 in) in 1898; 282.0 mm (11.1 in) in 2004.

Download the Data

  • Data for Cossack standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Cossack 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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