Kojonup Weather Records (ASN00010582)

Record envelope, standing records and threshold days for Kojonup (ASN00010582), Australia, with 141 years of record.

Key Facts for Kojonup

Kojonup (ASN00010582) is a weather station in Australia at -33.83 latitude and 117.16 longitude, 305 m (1,001 ft) above sea level.
The station reports from 1885 to 2025, 141 years of record.
1,464 records set at Kojonup still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Kojonup set a daily record precipitation of 24.0 mm (0.9 in) on 6 September 2025.

About the Station

Location: Australia, -33.83 latitude, 117.16 longitude.
Elevation: 305 m (1,001 ft).
Period of record: 1885 to 2025, 141 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 Kojonup. 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 Kojonup, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	44.2 C (111.6 F)	4.0 C (39.2 F)	n/a	n/a
Feb	43.2 C (109.8 F)	3.9 C (39.0 F)	n/a	n/a
Mar	38.6 C (101.5 F)	2.4 C (36.3 F)	n/a	n/a
Apr	36.1 C (97.0 F)	2.2 C (36.0 F)	n/a	n/a
May	32.2 C (90.0 F)	-3.5 C (25.7 F)	n/a	n/a
Jun	22.8 C (73.0 F)	-2.5 C (27.5 F)	n/a	n/a
Jul	21.5 C (70.7 F)	-2.6 C (27.3 F)	n/a	n/a
Aug	24.6 C (76.3 F)	-1.4 C (29.5 F)	n/a	n/a
Sep	27.6 C (81.7 F)	-1.0 C (30.2 F)	n/a	n/a
Oct	33.2 C (91.8 F)	-0.2 C (31.6 F)	n/a	n/a
Nov	38.8 C (101.8 F)	0.0 C (32.0 F)	n/a	n/a
Dec	40.1 C (104.2 F)	2.2 C (36.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Kojonup still stand. 1972 holds the most, with 72.

Standing records at Kojonup by the year they were set
Year set	Standing records
1967	22
1968	68
1969	51
1970	45
1971	43
1972	72
1973	47
1974	36
1975	26
1976	41
1977	65
1978	57
1979	42
1980	40
1981	58
1982	57
1983	44
1984	51
1985	65
1986	48
1987	57
1988	56
1989	49
1990	60
1991	64
1992	53
1993	38
1994	66
1995	34
1996	9

All-Time Record Progression

2 new records

2 all-time records were set at Kojonup between 22 January 1939 and 21 January 1982. Each dot is a new record.

When Kojonup set new all-time records
Date	Kind	Detail
1939-01-22	Record daily precipitation	Record daily precipitation 92.7 mm (3.6 in)
1982-01-21	Record daily precipitation	Record daily precipitation 113.6 mm (4.5 in)

Wettest Day of Each Month

Jan: 113.6 mm (4.5 in)

The wettest day on record for each calendar month at Kojonup. The most was 113.6 mm (4.5 in) on 21 January 1982.

Record daily precipitation for each month at Kojonup
Month	Record daily precipitation (mm)	Date
Jan	113.6 mm (4.5 in)	21 January 1982
Feb	92.7 mm (3.6 in)	17 February 1955
Mar	69.9 mm (2.8 in)	5 March 1956
Apr	61.2 mm (2.4 in)	20 April 1928
May	81.2 mm (3.2 in)	5 May 2021
Jun	57.7 mm (2.3 in)	10 June 1945
Jul	46.5 mm (1.8 in)	2 July 1944
Aug	39.4 mm (1.6 in)	4 August 1964
Sep	34.6 mm (1.4 in)	14 September 1984
Oct	44.7 mm (1.8 in)	19 October 1935
Nov	48.8 mm (1.9 in)	23 November 1971
Dec	59.7 mm (2.4 in)	4 December 1914

Period of Record Coverage

1967 to 1997

31 years of record at Kojonup, 1967 to 1997. 7 years have data for under 90 percent of days and are left out of rankings: 1967, 1968, 1975, 1976, 1995, 1996, 1997.

Days with data per year at Kojonup
Year	Days with data	Share of year	Complete
1967	192	53%	No
1968	327	89%	No
1969	356	98%	Yes
1970	339	93%	Yes
1971	334	92%	Yes
1972	343	94%	Yes
1973	355	97%	Yes
1974	331	91%	Yes
1975	326	89%	No
1976	291	80%	No
1977	344	94%	Yes
1978	351	96%	Yes
1979	337	92%	Yes
1980	340	93%	Yes
1981	334	92%	Yes
1982	348	95%	Yes
1983	355	97%	Yes
1984	349	95%	Yes
1985	349	96%	Yes
1986	357	98%	Yes
1987	365	100%	Yes
1988	364	99%	Yes
1989	350	96%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	293	80%	No
1996	82	22%	No
1997	11	3%	No

Latest Records

Latest records at Kojonup
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 September 2025	Kojonup, AU	daily rain	24.0 mm (0.9 in)	1.6 mm (0.06 in)	92 years	20 of 100 (Routine)
3 July 2025	Kojonup, AU	daily rain	19.0 mm (0.7 in)	4.6 mm (0.18 in)	28 years	20 of 100 (Routine)
4 April 2025	Kojonup, AU	daily rain	21.6 mm (0.9 in)	0.6 mm (0.02 in)	3 years	10 of 100 (Routine)
14 March 2025	Kojonup, AU	daily rain	56.0 mm (2.2 in)	34.9 mm (1.4 in)	83 years	74 of 100 (Major)
23 July 2024	Kojonup, AU	daily rain	26.6 mm (1.0 in)	10.6 mm (0.4 in)	63 years	46 of 100 (Notable)
29 November 2023	Kojonup, AU	daily rain	36.0 mm (1.4 in)	20.0 mm (0.8 in)	106 years	78 of 100 (Major)
3 August 2023	Kojonup, AU	daily rain	28.2 mm (1.1 in)	5.8 mm (0.23 in)	92 years	47 of 100 (Notable)
11 November 2022	Kojonup, AU	daily rain	15.2 mm (0.6 in)	0.5 mm (0.02 in)	108 years	20 of 100 (Routine)
5 September 2022	Kojonup, AU	daily rain (Tie)	16.0 mm (0.6 in)	tie	100 years	10 of 100 (Routine)
4 April 2022	Kojonup, AU	daily rain	21.0 mm (0.8 in)	4.6 mm (0.18 in)	41 years	20 of 100 (Routine)
12 March 2022	Kojonup, AU	daily rain	9.8 mm (0.39 in)	4.2 mm (0.17 in)	35 years	20 of 100 (Routine)
22 November 2021	Kojonup, AU	daily rain	28.0 mm (1.1 in)	17.8 mm (0.7 in)	36 years	54 of 100 (Notable)
9 September 2021	Kojonup, AU	daily rain	19.4 mm (0.8 in)	2.0 mm (0.08 in)	28 years	20 of 100 (Routine)
5 May 2021	Kojonup, AU	monthly rain	81.2 mm (3.2 in)	27.0 mm (1.1 in)	6 years	62 of 100 (Major)
12 April 2021	Kojonup, AU	daily rain	60.2 mm (2.4 in)	34.8 mm (1.4 in)	108 years	80 of 100 (Exceptional)
8 February 2021	Kojonup, AU	daily rain	27.2 mm (1.1 in)	15.5 mm (0.6 in)	92 years	55 of 100 (Notable)
7 February 2021	Kojonup, AU	daily rain	18.6 mm (0.7 in)	7.7 mm (0.30 in)	51 years	20 of 100 (Routine)
3 November 2020	Kojonup, AU	daily rain	38.8 mm (1.5 in)	22.8 mm (0.9 in)	42 years	62 of 100 (Major)
7 September 2020	Kojonup, AU	daily rain	26.0 mm (1.0 in)	13.3 mm (0.5 in)	108 years	69 of 100 (Major)
29 February 2020	Kojonup, AU	daily rain	4.0 mm (0.16 in)	1.6 mm (0.06 in)	4 years	12 of 100 (Routine)

Climate Trend

23 complete years, 1969 to 1994

One stripe for each of 23 complete years at Kojonup, 1969 to 1994. Blue stripes are years cooler than the station's own mean of 15.4 C (59.7 F); red stripes are warmer. The coolest year was 1971, at 14.3 C (57.7 F), and the warmest was 1972, at 16.2 C (61.2 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Kojonup as warming stripes, 1969 to 1994
Year	Annual mean temperature	Difference from the station mean
1969	15.2 C	-0.17 C
1970	15.2 C	-0.17 C
1971	14.3 C	-1.12 C
1972	16.2 C	+0.81 C
1973	15.1 C	-0.29 C
1974	15.5 C	+0.08 C
1975	15.3 C	-0.11 C
1976	15.8 C	+0.38 C
1978	16.0 C	+0.62 C
1979	15.4 C	+0.04 C
1980	15.2 C	-0.16 C
1981	14.9 C	-0.49 C
1982	15.4 C	+0.04 C
1983	16.0 C	+0.60 C
1984	15.0 C	-0.41 C
1986	14.6 C	-0.84 C
1987	15.6 C	+0.19 C
1988	15.8 C	+0.43 C
1989	15.5 C	+0.07 C
1990	15.0 C	-0.43 C
1991	15.9 C	+0.53 C
1993	15.2 C	-0.21 C
1994	16.0 C	+0.59 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1885 to 2025

Yearly extremes at Kojonup: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	44.2 C (111.6 F)	1991	40.1 C (104.2 F)	31
Coldest night (TNn)	-3.5 C (25.7 F)	1996	-0.6 C (30.8 F)	30
Wettest day (Rx1day)	113.6 mm (4.5 in)	1982	33.3 mm (1.3 in)	127
Wettest five days (Rx5day)	221.6 mm (8.7 in)	1982	53.3 mm (2.1 in)	127
Longest dry spell (CDD)	100 days	1950	39 days	127

Hottest day (TXx)

The hottest day of the year at Kojonup, 1885 to 2025. The record is 44.2 C (111.6 F) in 1991, marked on the chart; the median year is 40.1 C (104.2 F).

Hottest day (TXx) at Kojonup by year
Year	Hottest day (TXx)
1885	n/a
1890	n/a
1891	n/a
1892	n/a
1894	n/a
1895	n/a
1901	n/a
1903	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	33.9 C (93.0 F)
1968	43.3 C (109.9 F)
1969	42.5 C (108.5 F)
1970	37.8 C (100.0 F)
1971	39.9 C (103.8 F)
1972	40.1 C (104.2 F)
1973	38.9 C (102.0 F)
1974	40.7 C (105.3 F)
1975	42.8 C (109.0 F)
1976	39.4 C (102.9 F)
1977	41.7 C (107.1 F)
1978	40.2 C (104.4 F)
1979	41.0 C (105.8 F)
1980	42.5 C (108.5 F)
1981	39.6 C (103.3 F)
1982	39.4 C (102.9 F)
1983	39.5 C (103.1 F)
1984	40.7 C (105.3 F)
1985	40.5 C (104.9 F)
1986	41.5 C (106.7 F)
1987	39.5 C (103.1 F)
1988	39.6 C (103.3 F)
1989	41.9 C (107.4 F)
1990	37.9 C (100.2 F)
1991	44.2 C (111.6 F)
1992	38.4 C (101.1 F)
1993	39.8 C (103.6 F)
1994	40.5 C (104.9 F)
1995	39.6 C (103.3 F)
1996	40.6 C (105.1 F)
1997	38.5 C (101.3 F)
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a

Coldest night (TNn)

The coldest night of the year at Kojonup, 1885 to 2025. The record is -3.5 C (25.7 F) in 1996, marked on the chart; the median year is -0.6 C (30.8 F).

Coldest night (TNn) at Kojonup by year
Year	Coldest night (TNn)
1885	n/a
1890	n/a
1891	n/a
1892	n/a
1894	n/a
1895	n/a
1901	n/a
1903	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	-0.6 C (30.9 F)
1968	-1.0 C (30.2 F)
1969	-0.8 C (30.6 F)
1970	0.1 C (32.2 F)
1971	0.6 C (33.1 F)
1972	-0.7 C (30.7 F)
1973	-1.0 C (30.2 F)
1974	0.8 C (33.4 F)
1975	0.0 C (32.0 F)
1976	0.0 C (32.0 F)
1977	-0.2 C (31.6 F)
1978	0.4 C (32.7 F)
1979	0.2 C (32.4 F)
1980	-0.2 C (31.6 F)
1981	-2.5 C (27.5 F)
1982	-2.6 C (27.3 F)
1983	-1.0 C (30.2 F)
1984	-0.1 C (31.8 F)
1985	0.0 C (32.0 F)
1986	-1.5 C (29.3 F)
1987	-1.0 C (30.2 F)
1988	-0.9 C (30.4 F)
1989	-1.0 C (30.2 F)
1990	-1.8 C (28.8 F)
1991	0.0 C (32.0 F)
1992	-1.0 C (30.2 F)
1993	-1.8 C (28.8 F)
1994	-0.4 C (31.3 F)
1995	-0.6 C (30.9 F)
1996	-3.5 C (25.7 F)
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a

Wettest day (Rx1day)

The wettest day of the year at Kojonup, 1885 to 2025. The record is 113.6 mm (4.5 in) in 1982, marked on the chart; the median year is 33.3 mm (1.3 in).

Wettest day (Rx1day) at Kojonup by year
Year	Wettest day (Rx1day)
1885	0.0 mm (0.00 in)
1890	0.0 mm (0.00 in)
1891	0.0 mm (0.00 in)
1892	0.0 mm (0.00 in)
1894	0.0 mm (0.00 in)
1895	0.0 mm (0.00 in)
1901	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1907	45.7 mm (1.8 in)
1908	38.1 mm (1.5 in)
1909	50.8 mm (2.0 in)
1910	25.4 mm (1.0 in)
1911	18.5 mm (0.7 in)
1912	24.1 mm (0.9 in)
1913	57.7 mm (2.3 in)
1914	62.5 mm (2.5 in)
1915	24.4 mm (1.0 in)
1916	30.2 mm (1.2 in)
1917	32.0 mm (1.3 in)
1918	64.5 mm (2.5 in)
1919	26.2 mm (1.0 in)
1920	25.4 mm (1.0 in)
1921	28.7 mm (1.1 in)
1922	20.3 mm (0.8 in)
1923	44.5 mm (1.8 in)
1924	30.7 mm (1.2 in)
1925	39.6 mm (1.6 in)
1926	39.4 mm (1.6 in)
1927	37.8 mm (1.5 in)
1928	61.2 mm (2.4 in)
1929	24.9 mm (1.0 in)
1930	30.2 mm (1.2 in)
1931	26.9 mm (1.1 in)
1932	30.2 mm (1.2 in)
1933	45.7 mm (1.8 in)
1934	62.0 mm (2.4 in)
1935	44.7 mm (1.8 in)
1936	27.4 mm (1.1 in)
1937	39.6 mm (1.6 in)
1938	33.5 mm (1.3 in)
1939	92.7 mm (3.6 in)
1940	20.8 mm (0.8 in)
1941	34.8 mm (1.4 in)
1942	27.9 mm (1.1 in)
1943	54.6 mm (2.1 in)
1944	46.5 mm (1.8 in)
1945	57.7 mm (2.3 in)
1946	23.6 mm (0.9 in)
1947	43.2 mm (1.7 in)
1948	32.0 mm (1.3 in)
1949	30.5 mm (1.2 in)
1950	19.8 mm (0.8 in)
1951	27.9 mm (1.1 in)
1952	45.7 mm (1.8 in)
1953	41.4 mm (1.6 in)
1954	37.3 mm (1.5 in)
1955	92.7 mm (3.6 in)
1956	69.9 mm (2.8 in)
1957	36.3 mm (1.4 in)
1958	35.3 mm (1.4 in)
1959	35.6 mm (1.4 in)
1960	26.9 mm (1.1 in)
1961	35.6 mm (1.4 in)
1962	31.0 mm (1.2 in)
1963	38.6 mm (1.5 in)
1964	39.4 mm (1.6 in)
1965	27.9 mm (1.1 in)
1966	24.1 mm (0.9 in)
1967	34.3 mm (1.4 in)
1968	34.5 mm (1.4 in)
1969	23.4 mm (0.9 in)
1970	36.6 mm (1.4 in)
1971	65.8 mm (2.6 in)
1972	33.3 mm (1.3 in)
1973	40.1 mm (1.6 in)
1974	29.8 mm (1.2 in)
1975	39.4 mm (1.6 in)
1976	39.4 mm (1.6 in)
1977	19.0 mm (0.7 in)
1978	26.8 mm (1.1 in)
1979	22.0 mm (0.9 in)
1980	49.0 mm (1.9 in)
1981	26.0 mm (1.0 in)
1982	113.6 mm (4.5 in)
1983	32.4 mm (1.3 in)
1984	34.6 mm (1.4 in)
1985	37.0 mm (1.5 in)
1986	27.2 mm (1.1 in)
1987	25.4 mm (1.0 in)
1988	27.4 mm (1.1 in)
1989	32.0 mm (1.3 in)
1990	33.0 mm (1.3 in)
1991	15.8 mm (0.6 in)
1992	25.4 mm (1.0 in)
1993	69.0 mm (2.7 in)
1994	38.0 mm (1.5 in)
1995	29.4 mm (1.2 in)
1996	44.0 mm (1.7 in)
1997	39.0 mm (1.5 in)
1998	20.6 mm (0.8 in)
1999	23.0 mm (0.9 in)
2000	15.8 mm (0.6 in)
2001	25.2 mm (1.0 in)
2002	38.6 mm (1.5 in)
2003	17.0 mm (0.7 in)
2004	15.2 mm (0.6 in)
2005	48.4 mm (1.9 in)
2006	24.0 mm (0.9 in)
2007	27.0 mm (1.1 in)
2008	49.2 mm (1.9 in)
2009	29.4 mm (1.2 in)
2010	29.0 mm (1.1 in)
2011	34.8 mm (1.4 in)
2012	38.4 mm (1.5 in)
2013	35.0 mm (1.4 in)
2014	54.2 mm (2.1 in)
2015	45.4 mm (1.8 in)
2016	57.2 mm (2.3 in)
2017	35.4 mm (1.4 in)
2018	38.2 mm (1.5 in)
2019	23.6 mm (0.9 in)
2020	38.8 mm (1.5 in)
2021	81.2 mm (3.2 in)
2022	21.2 mm (0.8 in)
2023	36.0 mm (1.4 in)
2024	26.6 mm (1.0 in)
2025	56.0 mm (2.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Kojonup, 1885 to 2025. The record is 221.6 mm (8.7 in) in 1982, marked on the chart; the median year is 53.3 mm (2.1 in).

Wettest five days (Rx5day) at Kojonup by year
Year	Wettest five days (Rx5day)
1885	0.0 mm (0.00 in)
1890	0.0 mm (0.00 in)
1891	0.0 mm (0.00 in)
1892	0.0 mm (0.00 in)
1894	0.0 mm (0.00 in)
1895	0.0 mm (0.00 in)
1901	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1907	84.8 mm (3.3 in)
1908	63.4 mm (2.5 in)
1909	65.1 mm (2.6 in)
1910	58.2 mm (2.3 in)
1911	32.5 mm (1.3 in)
1912	40.8 mm (1.6 in)
1913	91.8 mm (3.6 in)
1914	67.8 mm (2.7 in)
1915	45.7 mm (1.8 in)
1916	41.2 mm (1.6 in)
1917	90.4 mm (3.6 in)
1918	66.1 mm (2.6 in)
1919	56.4 mm (2.2 in)
1920	48.0 mm (1.9 in)
1921	49.3 mm (1.9 in)
1922	46.0 mm (1.8 in)
1923	66.3 mm (2.6 in)
1924	47.5 mm (1.9 in)
1925	43.2 mm (1.7 in)
1926	67.1 mm (2.6 in)
1927	42.4 mm (1.7 in)
1928	62.8 mm (2.5 in)
1929	59.9 mm (2.4 in)
1930	78.6 mm (3.1 in)
1931	50.0 mm (2.0 in)
1932	60.0 mm (2.4 in)
1933	78.6 mm (3.1 in)
1934	62.6 mm (2.5 in)
1935	52.5 mm (2.1 in)
1936	41.7 mm (1.6 in)
1937	59.0 mm (2.3 in)
1938	51.8 mm (2.0 in)
1939	134.5 mm (5.3 in)
1940	26.9 mm (1.1 in)
1941	53.3 mm (2.1 in)
1942	44.6 mm (1.8 in)
1943	59.2 mm (2.3 in)
1944	61.0 mm (2.4 in)
1945	99.6 mm (3.9 in)
1946	57.3 mm (2.3 in)
1947	79.2 mm (3.1 in)
1948	41.2 mm (1.6 in)
1949	45.0 mm (1.8 in)
1950	37.1 mm (1.5 in)
1951	66.1 mm (2.6 in)
1952	53.3 mm (2.1 in)
1953	50.3 mm (2.0 in)
1954	59.8 mm (2.4 in)
1955	142.4 mm (5.6 in)
1956	77.8 mm (3.1 in)
1957	53.3 mm (2.1 in)
1958	59.2 mm (2.3 in)
1959	71.1 mm (2.8 in)
1960	57.7 mm (2.3 in)
1961	46.5 mm (1.8 in)
1962	57.7 mm (2.3 in)
1963	82.3 mm (3.2 in)
1964	65.3 mm (2.6 in)
1965	55.4 mm (2.2 in)
1966	48.2 mm (1.9 in)
1967	40.6 mm (1.6 in)
1968	53.9 mm (2.1 in)
1969	51.8 mm (2.0 in)
1970	45.7 mm (1.8 in)
1971	98.3 mm (3.9 in)
1972	41.9 mm (1.6 in)
1973	43.2 mm (1.7 in)
1974	46.4 mm (1.8 in)
1975	55.4 mm (2.2 in)
1976	64.0 mm (2.5 in)
1977	41.2 mm (1.6 in)
1978	46.0 mm (1.8 in)
1979	42.0 mm (1.7 in)
1980	50.2 mm (2.0 in)
1981	44.6 mm (1.8 in)
1982	221.6 mm (8.7 in)
1983	63.7 mm (2.5 in)
1984	48.0 mm (1.9 in)
1985	66.0 mm (2.6 in)
1986	42.8 mm (1.7 in)
1987	34.4 mm (1.4 in)
1988	54.6 mm (2.1 in)
1989	49.3 mm (1.9 in)
1990	57.8 mm (2.3 in)
1991	47.8 mm (1.9 in)
1992	43.4 mm (1.7 in)
1993	85.6 mm (3.4 in)
1994	45.2 mm (1.8 in)
1995	53.6 mm (2.1 in)
1996	73.6 mm (2.9 in)
1997	21.0 mm (0.8 in)
1998	26.8 mm (1.1 in)
1999	24.6 mm (1.0 in)
2000	25.2 mm (1.0 in)
2001	53.6 mm (2.1 in)
2002	40.8 mm (1.6 in)
2003	40.2 mm (1.6 in)
2004	22.6 mm (0.9 in)
2005	86.8 mm (3.4 in)
2006	33.0 mm (1.3 in)
2007	35.0 mm (1.4 in)
2008	49.6 mm (2.0 in)
2009	79.0 mm (3.1 in)
2010	38.8 mm (1.5 in)
2011	59.6 mm (2.3 in)
2012	55.0 mm (2.2 in)
2013	81.2 mm (3.2 in)
2014	87.9 mm (3.5 in)
2015	65.6 mm (2.6 in)
2016	98.4 mm (3.9 in)
2017	70.8 mm (2.8 in)
2018	46.8 mm (1.8 in)
2019	58.8 mm (2.3 in)
2020	57.8 mm (2.3 in)
2021	87.2 mm (3.4 in)
2022	39.0 mm (1.5 in)
2023	48.0 mm (1.9 in)
2024	53.4 mm (2.1 in)
2025	60.0 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Kojonup, 1885 to 2025. The record is 100 days in 1950, marked on the chart; the median year is 39 days.

Longest dry spell (CDD) at Kojonup by year
Year	Longest dry spell (CDD)
1885	90 days
1890	30 days
1891	59 days
1892	31 days
1894	31 days
1895	31 days
1901	28 days
1903	28 days
1907	32 days
1908	37 days
1909	47 days
1910	54 days
1911	56 days
1912	42 days
1913	48 days
1914	26 days
1915	44 days
1916	31 days
1917	38 days
1918	26 days
1919	55 days
1920	52 days
1921	25 days
1922	32 days
1923	64 days
1924	39 days
1925	27 days
1926	18 days
1927	29 days
1928	47 days
1929	36 days
1930	54 days
1931	42 days
1932	31 days
1933	30 days
1934	23 days
1935	30 days
1936	57 days
1937	61 days
1938	38 days
1939	36 days
1940	56 days
1941	56 days
1942	28 days
1943	35 days
1944	56 days
1945	59 days
1946	30 days
1947	27 days
1948	85 days
1949	43 days
1950	100 days
1951	35 days
1952	31 days
1953	50 days
1954	52 days
1955	33 days
1956	59 days
1957	57 days
1958	49 days
1959	25 days
1960	42 days
1961	33 days
1962	39 days
1963	24 days
1964	53 days
1965	42 days
1966	49 days
1967	33 days
1968	31 days
1969	44 days
1970	51 days
1971	52 days
1972	66 days
1973	67 days
1974	37 days
1975	58 days
1976	40 days
1977	33 days
1978	37 days
1979	39 days
1980	41 days
1981	43 days
1982	33 days
1983	30 days
1984	56 days
1985	34 days
1986	33 days
1987	59 days
1988	52 days
1989	38 days
1990	26 days
1991	53 days
1992	32 days
1993	40 days
1994	65 days
1995	26 days
1996	40 days
1997	35 days
1998	68 days
1999	38 days
2000	34 days
2001	66 days
2002	56 days
2003	32 days
2004	42 days
2005	42 days
2006	36 days
2007	17 days
2008	42 days
2009	50 days
2010	32 days
2011	18 days
2012	43 days
2013	46 days
2014	44 days
2015	32 days
2016	24 days
2017	40 days
2018	31 days
2019	62 days
2020	25 days
2021	26 days
2022	45 days
2023	51 days
2024	55 days
2025	24 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

105 years, 1907 to 2024

A day with at least 33.9 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 103.6 mm (4.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Kojonup: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	33.9 mm (1.3 in)
5 years	47.0 mm (1.9 in)
10 years	57.5 mm (2.3 in)
25 years	73.4 mm (2.9 in)
50 years	87.4 mm (3.4 in)
100 years	103.6 mm (4.1 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 105 years of values from 1907 to 2024.

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: 113.6 mm (4.5 in) in 1982; 92.7 mm (3.6 in) in 1939; 92.7 mm (3.6 in) in 1955.

Download the Data

Data for Kojonup standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Kojonup 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 2026-10-14. Last revised 14 October 2026 (2026-10-14).