Cowaramup Weather Records (ASN00009636)

Record envelope, standing records and threshold days for Cowaramup (ASN00009636), Australia, with 101 years of record.

Key Facts for Cowaramup

Cowaramup (ASN00009636) is a weather station in Australia at -33.84 latitude and 115.07 longitude, 120 m (394 ft) above sea level.
The station reports from 1926 to 2026, 101 years of record.
0 records set at Cowaramup still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Cowaramup set a daily record precipitation of 34.0 mm (1.3 in) on 5 September 2025.

About the Station

Location: Australia, -33.84 latitude, 115.07 longitude.
Elevation: 120 m (394 ft).
Period of record: 1926 to 2026, 101 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Cowaramup. 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 Cowaramup, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Cowaramup still stand.

Wettest Day of Each Month

Apr: 113.8 mm (4.5 in)

The wettest day on record for each calendar month at Cowaramup. The most was 113.8 mm (4.5 in) on 17 April 1926.

Record daily precipitation for each month at Cowaramup
Month	Record daily precipitation (mm)	Date
Jan	57.0 mm (2.2 in)	6 January 1976
Feb	38.6 mm (1.5 in)	2 February 1953
Mar	72.6 mm (2.9 in)	26 March 1965
Apr	113.8 mm (4.5 in)	17 April 1926
May	91.7 mm (3.6 in)	23 May 1944
Jun	86.9 mm (3.4 in)	9 June 1951
Jul	101.6 mm (4.0 in)	19 July 1965
Aug	77.4 mm (3.0 in)	8 August 2021
Sep	51.2 mm (2.0 in)	29 September 2001
Oct	62.7 mm (2.5 in)	10 October 1963
Nov	49.3 mm (1.9 in)	3 November 1969
Dec	44.6 mm (1.8 in)	31 December 1983

Latest Records

Latest records at Cowaramup
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
5 September 2025	Cowaramup, AU	daily rain	34.0 mm (1.3 in)	5.0 mm (0.20 in)	82 years	40 of 100 (Notable)
27 July 2025	Cowaramup, AU	daily rain	76.0 mm (3.0 in)	38.2 mm (1.5 in)	79 years	68 of 100 (Major)
3 July 2025	Cowaramup, AU	daily rain	53.0 mm (2.1 in)	18.0 mm (0.7 in)	40 years	38 of 100 (Notable)
5 April 2025	Cowaramup, AU	daily rain	22.6 mm (0.9 in)	11.4 mm (0.4 in)	12 years	20 of 100 (Routine)
16 June 2024	Cowaramup, AU	daily rain	55.2 mm (2.2 in)	4.7 mm (0.19 in)	81 years	36 of 100 (Notable)
2 June 2024	Cowaramup, AU	daily rain	42.0 mm (1.7 in)	1.6 mm (0.06 in)	57 years	27 of 100 (Routine)
2 May 2024	Cowaramup, AU	daily rain	59.6 mm (2.3 in)	7.6 mm (0.30 in)	11 years	18 of 100 (Routine)
26 April 2023	Cowaramup, AU	daily rain	32.2 mm (1.3 in)	18.5 mm (0.7 in)	65 years	47 of 100 (Notable)
25 April 2023	Cowaramup, AU	daily rain	39.2 mm (1.5 in)	15.0 mm (0.6 in)	22 years	30 of 100 (Routine)
3 March 2023	Cowaramup, AU	daily rain	6.0 mm (0.24 in)	3.7 mm (0.15 in)	58 years	20 of 100 (Routine)
13 September 2022	Cowaramup, AU	daily rain	27.2 mm (1.1 in)	1.0 mm (0.04 in)	51 years	25 of 100 (Routine)
1 October 2021	Cowaramup, AU	daily rain	41.4 mm (1.6 in)	15.4 mm (0.6 in)	43 years	43 of 100 (Notable)
16 September 2021	Cowaramup, AU	daily rain	25.2 mm (1.0 in)	5.8 mm (0.23 in)	39 years	27 of 100 (Routine)
8 August 2021	Cowaramup, AU	monthly rain	77.4 mm (3.0 in)	10.1 mm (0.4 in)	62 years	48 of 100 (Notable)
5 July 2021	Cowaramup, AU	daily rain	26.6 mm (1.0 in)	2.6 mm (0.10 in)	2 years	11 of 100 (Routine)
3 May 2021	Cowaramup, AU	daily rain	48.4 mm (1.9 in)	23.5 mm (0.9 in)	74 years	51 of 100 (Notable)
30 April 2021	Cowaramup, AU	daily rain	29.6 mm (1.2 in)	9.5 mm (0.37 in)	72 years	39 of 100 (Notable)
12 April 2021	Cowaramup, AU	daily rain	42.4 mm (1.7 in)	23.2 mm (0.9 in)	18 years	37 of 100 (Notable)
4 March 2021	Cowaramup, AU	daily rain	51.6 mm (2.0 in)	44.7 mm (1.8 in)	64 years	68 of 100 (Major)
10 February 2021	Cowaramup, AU	daily rain	5.6 mm (0.22 in)	0.6 mm (0.02 in)	31 years	18 of 100 (Routine)

Extremes by Year

1926 to 2026

Yearly extremes at Cowaramup: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	113.8 mm (4.5 in)	1926	56.2 mm (2.2 in)	89
Wettest five days (Rx5day)	193.4 mm (7.6 in)	1980	100.1 mm (3.9 in)	89
Longest dry spell (CDD)	100 days	1950	34 days	89

Wettest day (Rx1day)

The wettest day of the year at Cowaramup, 1926 to 2026. The record is 113.8 mm (4.5 in) in 1926, marked on the chart; the median year is 56.2 mm (2.2 in).

Wettest day (Rx1day) at Cowaramup by year
Year	Wettest day (Rx1day)
1926	113.8 mm (4.5 in)
1927	64.0 mm (2.5 in)
1940	7.4 mm (0.29 in)
1941	69.6 mm (2.7 in)
1942	45.7 mm (1.8 in)
1943	55.4 mm (2.2 in)
1944	91.7 mm (3.6 in)
1945	48.8 mm (1.9 in)
1946	60.5 mm (2.4 in)
1947	84.1 mm (3.3 in)
1948	79.0 mm (3.1 in)
1949	84.1 mm (3.3 in)
1950	84.3 mm (3.3 in)
1951	86.9 mm (3.4 in)
1952	86.9 mm (3.4 in)
1953	66.3 mm (2.6 in)
1954	44.2 mm (1.7 in)
1955	61.2 mm (2.4 in)
1956	66.5 mm (2.6 in)
1957	51.6 mm (2.0 in)
1958	70.9 mm (2.8 in)
1959	41.4 mm (1.6 in)
1960	62.7 mm (2.5 in)
1961	62.7 mm (2.5 in)
1962	66.0 mm (2.6 in)
1963	63.5 mm (2.5 in)
1964	49.8 mm (2.0 in)
1965	101.6 mm (4.0 in)
1966	48.5 mm (1.9 in)
1967	83.3 mm (3.3 in)
1968	36.3 mm (1.4 in)
1969	55.6 mm (2.2 in)
1970	44.5 mm (1.8 in)
1971	51.1 mm (2.0 in)
1972	53.3 mm (2.1 in)
1973	59.7 mm (2.4 in)
1974	67.4 mm (2.7 in)
1975	42.6 mm (1.7 in)
1976	57.0 mm (2.2 in)
1977	60.0 mm (2.4 in)
1978	40.0 mm (1.6 in)
1979	65.4 mm (2.6 in)
1980	84.8 mm (3.3 in)
1981	46.2 mm (1.8 in)
1982	64.0 mm (2.5 in)
1983	60.4 mm (2.4 in)
1984	50.2 mm (2.0 in)
1985	73.0 mm (2.9 in)
1986	65.8 mm (2.6 in)
1987	45.0 mm (1.8 in)
1988	56.0 mm (2.2 in)
1989	47.4 mm (1.9 in)
1990	50.2 mm (2.0 in)
1991	56.2 mm (2.2 in)
1992	46.0 mm (1.8 in)
1993	46.8 mm (1.8 in)
1994	41.8 mm (1.6 in)
1995	56.8 mm (2.2 in)
1996	50.2 mm (2.0 in)
1997	71.8 mm (2.8 in)
1998	72.0 mm (2.8 in)
1999	47.6 mm (1.9 in)
2000	42.2 mm (1.7 in)
2001	59.4 mm (2.3 in)
2002	33.6 mm (1.3 in)
2003	34.4 mm (1.4 in)
2004	27.6 mm (1.1 in)
2005	47.0 mm (1.9 in)
2006	46.0 mm (1.8 in)
2007	36.2 mm (1.4 in)
2008	37.6 mm (1.5 in)
2009	68.0 mm (2.7 in)
2010	55.0 mm (2.2 in)
2011	40.2 mm (1.6 in)
2012	47.0 mm (1.9 in)
2013	57.0 mm (2.2 in)
2014	74.0 mm (2.9 in)
2015	49.2 mm (1.9 in)
2016	63.0 mm (2.5 in)
2017	45.6 mm (1.8 in)
2018	60.4 mm (2.4 in)
2019	75.0 mm (3.0 in)
2020	48.4 mm (1.9 in)
2021	77.4 mm (3.0 in)
2022	47.1 mm (1.9 in)
2023	39.2 mm (1.5 in)
2024	59.6 mm (2.3 in)
2025	76.0 mm (3.0 in)
2026	32.0 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Cowaramup, 1926 to 2026. The record is 193.4 mm (7.6 in) in 1980, marked on the chart; the median year is 100.1 mm (3.9 in).

Wettest five days (Rx5day) at Cowaramup by year
Year	Wettest five days (Rx5day)
1926	187.8 mm (7.4 in)
1927	90.9 mm (3.6 in)
1940	10.0 mm (0.4 in)
1941	96.5 mm (3.8 in)
1942	84.1 mm (3.3 in)
1943	83.6 mm (3.3 in)
1944	108.7 mm (4.3 in)
1945	105.0 mm (4.1 in)
1946	86.5 mm (3.4 in)
1947	144.8 mm (5.7 in)
1948	135.0 mm (5.3 in)
1949	180.7 mm (7.1 in)
1950	116.1 mm (4.6 in)
1951	156.2 mm (6.1 in)
1952	123.3 mm (4.9 in)
1953	106.4 mm (4.2 in)
1954	86.6 mm (3.4 in)
1955	87.6 mm (3.4 in)
1956	127.5 mm (5.0 in)
1957	130.6 mm (5.1 in)
1958	148.6 mm (5.9 in)
1959	83.9 mm (3.3 in)
1960	108.4 mm (4.3 in)
1961	125.0 mm (4.9 in)
1962	130.8 mm (5.1 in)
1963	146.3 mm (5.8 in)
1964	132.1 mm (5.2 in)
1965	127.5 mm (5.0 in)
1966	110.5 mm (4.4 in)
1967	99.6 mm (3.9 in)
1968	87.1 mm (3.4 in)
1969	97.8 mm (3.9 in)
1970	136.7 mm (5.4 in)
1971	71.0 mm (2.8 in)
1972	101.8 mm (4.0 in)
1973	100.1 mm (3.9 in)
1974	120.0 mm (4.7 in)
1975	92.4 mm (3.6 in)
1976	91.6 mm (3.6 in)
1977	102.0 mm (4.0 in)
1978	80.1 mm (3.2 in)
1979	125.6 mm (4.9 in)
1980	193.4 mm (7.6 in)
1981	100.6 mm (4.0 in)
1982	108.0 mm (4.3 in)
1983	100.6 mm (4.0 in)
1984	95.0 mm (3.7 in)
1985	100.0 mm (3.9 in)
1986	149.6 mm (5.9 in)
1987	109.6 mm (4.3 in)
1988	124.2 mm (4.9 in)
1989	75.0 mm (3.0 in)
1990	92.6 mm (3.6 in)
1991	110.4 mm (4.3 in)
1992	88.6 mm (3.5 in)
1993	85.8 mm (3.4 in)
1994	88.6 mm (3.5 in)
1995	98.0 mm (3.9 in)
1996	121.6 mm (4.8 in)
1997	99.6 mm (3.9 in)
1998	130.8 mm (5.1 in)
1999	95.6 mm (3.8 in)
2000	78.2 mm (3.1 in)
2001	80.2 mm (3.2 in)
2002	59.2 mm (2.3 in)
2003	85.2 mm (3.4 in)
2004	76.4 mm (3.0 in)
2005	110.0 mm (4.3 in)
2006	80.0 mm (3.1 in)
2007	95.6 mm (3.8 in)
2008	72.2 mm (2.8 in)
2009	117.4 mm (4.6 in)
2010	79.2 mm (3.1 in)
2011	74.0 mm (2.9 in)
2012	104.8 mm (4.1 in)
2013	98.2 mm (3.9 in)
2014	123.0 mm (4.8 in)
2015	99.0 mm (3.9 in)
2016	109.8 mm (4.3 in)
2017	93.8 mm (3.7 in)
2018	113.6 mm (4.5 in)
2019	137.4 mm (5.4 in)
2020	82.2 mm (3.2 in)
2021	108.0 mm (4.3 in)
2022	98.3 mm (3.9 in)
2023	94.8 mm (3.7 in)
2024	91.2 mm (3.6 in)
2025	134.5 mm (5.3 in)
2026	80.6 mm (3.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Cowaramup, 1926 to 2026. The record is 100 days in 1950, marked on the chart; the median year is 34 days.

Longest dry spell (CDD) at Cowaramup by year
Year	Longest dry spell (CDD)
1926	22 days
1927	22 days
1940	26 days
1941	38 days
1942	58 days
1943	37 days
1944	54 days
1945	44 days
1946	29 days
1947	27 days
1948	88 days
1949	42 days
1950	100 days
1951	44 days
1952	63 days
1953	34 days
1954	35 days
1955	48 days
1956	63 days
1957	76 days
1958	58 days
1959	59 days
1960	29 days
1961	25 days
1962	28 days
1963	34 days
1964	42 days
1965	26 days
1966	32 days
1967	16 days
1968	40 days
1969	53 days
1970	26 days
1971	34 days
1972	76 days
1973	38 days
1974	52 days
1975	67 days
1976	26 days
1977	29 days
1978	48 days
1979	22 days
1980	41 days
1981	64 days
1982	41 days
1983	33 days
1984	33 days
1985	27 days
1986	30 days
1987	49 days
1988	27 days
1989	30 days
1990	18 days
1991	48 days
1992	47 days
1993	53 days
1994	43 days
1995	46 days
1996	44 days
1997	30 days
1998	43 days
1999	32 days
2000	29 days
2001	34 days
2002	46 days
2003	36 days
2004	28 days
2005	31 days
2006	34 days
2007	21 days
2008	49 days
2009	28 days
2010	34 days
2011	38 days
2012	30 days
2013	29 days
2014	29 days
2015	34 days
2016	22 days
2017	34 days
2018	54 days
2019	29 days
2020	25 days
2021	26 days
2022	41 days
2023	34 days
2024	62 days
2025	35 days
2026	27 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

81 years, 1941 to 2025

A day with at least 55.9 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 102.1 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Cowaramup: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	55.9 mm (2.2 in)
5 years	69.8 mm (2.7 in)
10 years	78.3 mm (3.1 in)
25 years	88.4 mm (3.5 in)
50 years	95.5 mm (3.8 in)
100 years	102.1 mm (4.0 in)	Longer than the 81 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, 81 years of values from 1941 to 2025.

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: 101.6 mm (4.0 in) in 1965; 91.7 mm (3.6 in) in 1944; 86.9 mm (3.4 in) in 1951.

Download the Data

Data for Cowaramup standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cowaramup 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a