Busselton Shire Weather Records (ASN00009515)

Record envelope, standing records and threshold days for Busselton Shire (ASN00009515), Australia, with 150 years of record.

Key Facts for Busselton Shire

Busselton Shire (ASN00009515) is a weather station in Australia at -33.66 latitude and 115.35 longitude, 4 m (13 ft) above sea level.
The station reports from 1877 to 2026, 150 years of record.
1,464 records set at Busselton Shire still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Busselton Shire set a daily record precipitation of 70.0 mm (2.8 in) on 20 April 2026.

About the Station

Location: Australia, -33.66 latitude, 115.35 longitude.
Elevation: 4 m (13 ft).
Period of record: 1877 to 2026, 150 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 Busselton Shire. 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 Busselton Shire, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.5 C (101.3 F)	6.7 C (44.1 F)	n/a	n/a
Feb	39.1 C (102.4 F)	6.1 C (43.0 F)	n/a	n/a
Mar	38.3 C (100.9 F)	4.6 C (40.3 F)	n/a	n/a
Apr	31.6 C (88.9 F)	2.2 C (36.0 F)	n/a	n/a
May	26.1 C (79.0 F)	0.4 C (32.7 F)	n/a	n/a
Jun	21.7 C (71.1 F)	0.9 C (33.6 F)	n/a	n/a
Jul	20.0 C (68.0 F)	1.1 C (34.0 F)	n/a	n/a
Aug	22.8 C (73.0 F)	1.1 C (34.0 F)	n/a	n/a
Sep	27.0 C (80.6 F)	0.7 C (33.3 F)	n/a	n/a
Oct	32.2 C (90.0 F)	1.0 C (33.8 F)	n/a	n/a
Nov	35.3 C (95.5 F)	3.3 C (37.9 F)	n/a	n/a
Dec	38.5 C (101.3 F)	5.6 C (42.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Busselton Shire still stand. 1968 holds the most, with 100.

Standing records at Busselton Shire by the year they were set
Year set	Standing records
1957	88
1958	74
1959	89
1960	99
1961	82
1962	78
1963	72
1964	81
1965	83
1966	78
1967	72
1968	100
1969	83
1970	80
1971	71
1972	81
1973	65
1974	46
1975	42

All-Time Record Progression

1 new records

1 all-time records were set at Busselton Shire between 21 May 1991 and 21 May 1991. Each dot is a new record.

Wettest Day of Each Month

May: 142.0 mm (5.6 in)

The wettest day on record for each calendar month at Busselton Shire. The most was 142.0 mm (5.6 in) on 21 May 1991.

Record daily precipitation for each month at Busselton Shire
Month	Record daily precipitation (mm)	Date
Jan	63.0 mm (2.5 in)	7 January 1976
Feb	58.7 mm (2.3 in)	26 February 1915
Mar	75.4 mm (3.0 in)	26 March 1965
Apr	103.4 mm (4.1 in)	26 April 1949
May	142.0 mm (5.6 in)	21 May 1991
Jun	126.5 mm (5.0 in)	4 June 1921
Jul	104.5 mm (4.1 in)	3 July 2025
Aug	71.4 mm (2.8 in)	10 August 1973
Sep	73.0 mm (2.9 in)	13 September 2023
Oct	47.5 mm (1.9 in)	11 October 1977
Nov	40.6 mm (1.6 in)	10 November 1929
Dec	35.4 mm (1.4 in)	12 December 1996

Period of Record Coverage

1957 to 1975

19 years of record at Busselton Shire, 1957 to 1975. 1 years have data for under 90 percent of days and are left out of rankings: 1975.

Days with data per year at Busselton Shire
Year	Days with data	Share of year	Complete
1957	365	100%	Yes
1958	365	100%	Yes
1959	334	92%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	356	98%	Yes
1967	364	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	351	96%	Yes
1975	287	79%	No

Latest Records

Latest records at Busselton Shire
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 2026	Busselton Shire, AU	daily rain	70.0 mm (2.8 in)	32.8 mm (1.3 in)	36 years	58 of 100 (Notable)
30 March 2026	Busselton Shire, AU	daily rain	20.0 mm (0.8 in)	10.6 mm (0.4 in)	73 years	20 of 100 (Routine)
20 August 2025	Busselton Shire, AU	daily rain	43.0 mm (1.7 in)	10.6 mm (0.4 in)	28 years	31 of 100 (Routine)
3 July 2025	Busselton Shire, AU	monthly rain	104.5 mm (4.1 in)	19.5 mm (0.8 in)	29 years	48 of 100 (Notable)
4 April 2025	Busselton Shire, AU	daily rain	23.6 mm (0.9 in)	11.0 mm (0.4 in)	51 years	20 of 100 (Routine)
20 November 2024	Busselton Shire, AU	daily rain	14.6 mm (0.6 in)	6.8 mm (0.27 in)	15 years	20 of 100 (Routine)
21 October 2024	Busselton Shire, AU	daily rain	22.0 mm (0.9 in)	0.2 mm (0.01 in)	89 years	20 of 100 (Routine)
13 September 2023	Busselton Shire, AU	monthly rain	73.0 mm (2.9 in)	9.0 mm (0.35 in)	43 years	48 of 100 (Notable)
3 August 2023	Busselton Shire, AU	daily rain	39.5 mm (1.6 in)	7.0 mm (0.28 in)	58 years	36 of 100 (Notable)
13 September 2022	Busselton Shire, AU	daily rain	47.0 mm (1.9 in)	25.9 mm (1.0 in)	56 years	66 of 100 (Major)
27 October 2021	Busselton Shire, AU	daily rain	20.0 mm (0.8 in)	2.0 mm (0.08 in)	66 years	20 of 100 (Routine)
9 September 2021	Busselton Shire, AU	daily rain	19.4 mm (0.8 in)	3.1 mm (0.12 in)	67 years	20 of 100 (Routine)
30 April 2021	Busselton Shire, AU	daily rain	17.4 mm (0.7 in)	4.2 mm (0.17 in)	76 years	20 of 100 (Routine)
4 March 2021	Busselton Shire, AU	daily rain	33.2 mm (1.3 in)	15.4 mm (0.6 in)	64 years	46 of 100 (Notable)
9 November 2020	Busselton Shire, AU	daily rain	16.0 mm (0.6 in)	2.0 mm (0.08 in)	10 years	16 of 100 (Routine)
11 June 2020	Busselton Shire, AU	daily rain	36.4 mm (1.4 in)	10.2 mm (0.4 in)	56 years	34 of 100 (Routine)
31 October 2019	Busselton Shire, AU	daily rain	14.6 mm (0.6 in)	0.6 mm (0.02 in)	97 years	20 of 100 (Routine)
7 June 2019	Busselton Shire, AU	daily rain	51.0 mm (2.0 in)	1.2 mm (0.05 in)	100 years	41 of 100 (Notable)
8 March 2019	Busselton Shire, AU	daily rain	16.0 mm (0.6 in)	10.0 mm (0.4 in)	20 years	20 of 100 (Routine)
7 March 2019	Busselton Shire, AU	daily rain	11.8 mm (0.5 in)	3.4 mm (0.13 in)	101 years	20 of 100 (Routine)

Climate Trend

15 complete years, 1957 to 1972

One stripe for each of 15 complete years at Busselton Shire, 1957 to 1972. Blue stripes are years cooler than the station's own mean of 16.6 C (61.9 F); red stripes are warmer. The coolest year was 1960, at 15.4 C (59.8 F), and the warmest was 1963, at 17.4 C (63.4 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Busselton Shire as warming stripes, 1957 to 1972
Year	Annual mean temperature	Difference from the station mean
1957	17.1 C	+0.49 C
1958	16.7 C	+0.07 C
1960	15.4 C	-1.17 C
1961	16.9 C	+0.27 C
1962	17.1 C	+0.49 C
1963	17.4 C	+0.82 C
1964	16.2 C	-0.36 C
1965	16.7 C	+0.11 C
1966	16.4 C	-0.25 C
1967	17.1 C	+0.48 C
1968	15.7 C	-0.93 C
1969	16.5 C	-0.13 C
1970	16.7 C	+0.10 C
1971	15.9 C	-0.69 C
1972	17.3 C	+0.70 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

1877 to 2026

Yearly extremes at Busselton Shire: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.1 C (102.4 F)	1970	36.7 C (98.1 F)	19
Coldest night (TNn)	0.4 C (32.7 F)	1968	1.9 C (35.4 F)	19
Wettest day (Rx1day)	142.0 mm (5.6 in)	1991	46.9 mm (1.8 in)	128
Wettest five days (Rx5day)	177.4 mm (7.0 in)	1949	79.1 mm (3.1 in)	128
Longest dry spell (CDD)	114 days	2001	43 days	128

Hottest day (TXx)

The hottest day of the year at Busselton Shire, 1877 to 2026. The record is 39.1 C (102.4 F) in 1970, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Busselton Shire by year
Year	Hottest day (TXx)
1877	n/a
1878	n/a
1879	n/a
1885	n/a
1888	n/a
1889	n/a
1891	n/a
1896	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	36.7 C (98.1 F)
1958	36.1 C (97.0 F)
1959	36.7 C (98.1 F)
1960	35.1 C (95.2 F)
1961	38.3 C (100.9 F)
1962	37.2 C (99.0 F)
1963	34.3 C (93.7 F)
1964	37.8 C (100.0 F)
1965	38.2 C (100.8 F)
1966	35.9 C (96.6 F)
1967	36.8 C (98.2 F)
1968	38.5 C (101.3 F)
1969	36.5 C (97.7 F)
1970	39.1 C (102.4 F)
1971	36.7 C (98.1 F)
1972	37.8 C (100.0 F)
1973	36.7 C (98.1 F)
1974	36.0 C (96.8 F)
1975	38.6 C (101.5 F)
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
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
2026	n/a

Coldest night (TNn)

The coldest night of the year at Busselton Shire, 1877 to 2026. The record is 0.4 C (32.7 F) in 1968, marked on the chart; the median year is 1.9 C (35.4 F).

Coldest night (TNn) at Busselton Shire by year
Year	Coldest night (TNn)
1877	n/a
1878	n/a
1879	n/a
1885	n/a
1888	n/a
1889	n/a
1891	n/a
1896	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	1.1 C (34.0 F)
1958	2.2 C (36.0 F)
1959	2.8 C (37.0 F)
1960	1.9 C (35.4 F)
1961	1.8 C (35.2 F)
1962	2.8 C (37.0 F)
1963	3.0 C (37.4 F)
1964	1.0 C (33.8 F)
1965	1.8 C (35.2 F)
1966	1.3 C (34.3 F)
1967	2.8 C (37.0 F)
1968	0.4 C (32.7 F)
1969	0.7 C (33.3 F)
1970	1.7 C (35.1 F)
1971	2.6 C (36.7 F)
1972	0.9 C (33.6 F)
1973	2.1 C (35.8 F)
1974	3.0 C (37.4 F)
1975	2.6 C (36.7 F)
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
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
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Busselton Shire, 1877 to 2026. The record is 142.0 mm (5.6 in) in 1991, marked on the chart; the median year is 46.9 mm (1.8 in).

Wettest day (Rx1day) at Busselton Shire by year
Year	Wettest day (Rx1day)
1877	0.0 mm (0.00 in)
1878	0.0 mm (0.00 in)
1879	0.0 mm (0.00 in)
1885	0.0 mm (0.00 in)
1888	0.0 mm (0.00 in)
1889	0.0 mm (0.00 in)
1891	0.0 mm (0.00 in)
1896	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1907	49.5 mm (1.9 in)
1908	61.5 mm (2.4 in)
1909	109.0 mm (4.3 in)
1910	53.8 mm (2.1 in)
1911	68.1 mm (2.7 in)
1912	82.8 mm (3.3 in)
1913	59.2 mm (2.3 in)
1914	51.1 mm (2.0 in)
1915	58.7 mm (2.3 in)
1916	66.0 mm (2.6 in)
1917	51.1 mm (2.0 in)
1918	49.8 mm (2.0 in)
1919	59.4 mm (2.3 in)
1920	38.9 mm (1.5 in)
1921	126.5 mm (5.0 in)
1922	44.5 mm (1.8 in)
1923	43.2 mm (1.7 in)
1924	40.6 mm (1.6 in)
1925	33.0 mm (1.3 in)
1926	40.9 mm (1.6 in)
1927	59.4 mm (2.3 in)
1928	57.7 mm (2.3 in)
1929	40.6 mm (1.6 in)
1930	40.6 mm (1.6 in)
1931	48.3 mm (1.9 in)
1932	56.9 mm (2.2 in)
1933	36.8 mm (1.4 in)
1934	80.5 mm (3.2 in)
1935	38.1 mm (1.5 in)
1936	43.9 mm (1.7 in)
1937	59.7 mm (2.4 in)
1938	62.2 mm (2.4 in)
1939	46.5 mm (1.8 in)
1940	29.2 mm (1.1 in)
1941	45.7 mm (1.8 in)
1942	53.6 mm (2.1 in)
1943	49.0 mm (1.9 in)
1944	55.6 mm (2.2 in)
1945	49.0 mm (1.9 in)
1946	45.2 mm (1.8 in)
1947	80.0 mm (3.1 in)
1948	55.9 mm (2.2 in)
1949	103.4 mm (4.1 in)
1950	94.7 mm (3.7 in)
1951	35.6 mm (1.4 in)
1952	59.2 mm (2.3 in)
1953	61.0 mm (2.4 in)
1954	30.5 mm (1.2 in)
1955	49.5 mm (1.9 in)
1956	68.1 mm (2.7 in)
1957	46.5 mm (1.8 in)
1958	47.2 mm (1.9 in)
1959	39.4 mm (1.6 in)
1960	46.0 mm (1.8 in)
1961	51.8 mm (2.0 in)
1962	45.2 mm (1.8 in)
1963	68.8 mm (2.7 in)
1964	35.3 mm (1.4 in)
1965	75.4 mm (3.0 in)
1966	52.1 mm (2.1 in)
1967	n/a
1968	52.1 mm (2.1 in)
1969	0.0 mm (0.00 in)
1970	35.1 mm (1.4 in)
1971	39.1 mm (1.5 in)
1972	36.8 mm (1.4 in)
1973	74.2 mm (2.9 in)
1974	84.3 mm (3.3 in)
1975	41.0 mm (1.6 in)
1976	63.0 mm (2.5 in)
1977	47.5 mm (1.9 in)
1978	47.0 mm (1.9 in)
1979	64.0 mm (2.5 in)
1980	53.6 mm (2.1 in)
1981	25.0 mm (1.0 in)
1982	52.4 mm (2.1 in)
1983	43.2 mm (1.7 in)
1984	38.4 mm (1.5 in)
1985	33.8 mm (1.3 in)
1986	58.6 mm (2.3 in)
1987	32.4 mm (1.3 in)
1988	35.0 mm (1.4 in)
1989	69.4 mm (2.7 in)
1990	37.2 mm (1.5 in)
1991	142.0 mm (5.6 in)
1992	40.6 mm (1.6 in)
1993	43.4 mm (1.7 in)
1994	31.2 mm (1.2 in)
1995	85.0 mm (3.3 in)
1996	52.8 mm (2.1 in)
1997	66.0 mm (2.6 in)
1998	38.0 mm (1.5 in)
1999	67.6 mm (2.7 in)
2000	63.2 mm (2.5 in)
2001	26.4 mm (1.0 in)
2002	35.0 mm (1.4 in)
2003	25.4 mm (1.0 in)
2004	24.0 mm (0.9 in)
2005	61.0 mm (2.4 in)
2006	27.6 mm (1.1 in)
2007	39.7 mm (1.6 in)
2008	26.0 mm (1.0 in)
2009	27.2 mm (1.1 in)
2010	43.6 mm (1.7 in)
2011	42.8 mm (1.7 in)
2012	32.4 mm (1.3 in)
2013	74.0 mm (2.9 in)
2014	31.9 mm (1.3 in)
2015	40.8 mm (1.6 in)
2016	46.8 mm (1.8 in)
2017	48.4 mm (1.9 in)
2018	55.0 mm (2.2 in)
2019	51.0 mm (2.0 in)
2020	36.4 mm (1.4 in)
2021	33.2 mm (1.3 in)
2022	47.0 mm (1.9 in)
2023	73.0 mm (2.9 in)
2024	38.0 mm (1.5 in)
2025	104.5 mm (4.1 in)
2026	70.0 mm (2.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Busselton Shire, 1877 to 2026. The record is 177.4 mm (7.0 in) in 1949, marked on the chart; the median year is 79.1 mm (3.1 in).

Wettest five days (Rx5day) at Busselton Shire by year
Year	Wettest five days (Rx5day)
1877	0.0 mm (0.00 in)
1878	0.0 mm (0.00 in)
1879	0.0 mm (0.00 in)
1885	0.0 mm (0.00 in)
1888	0.0 mm (0.00 in)
1889	0.0 mm (0.00 in)
1891	0.0 mm (0.00 in)
1896	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1907	84.3 mm (3.3 in)
1908	101.0 mm (4.0 in)
1909	144.3 mm (5.7 in)
1910	105.2 mm (4.1 in)
1911	101.2 mm (4.0 in)
1912	97.6 mm (3.8 in)
1913	84.2 mm (3.3 in)
1914	89.2 mm (3.5 in)
1915	121.9 mm (4.8 in)
1916	86.9 mm (3.4 in)
1917	137.2 mm (5.4 in)
1918	83.6 mm (3.3 in)
1919	102.0 mm (4.0 in)
1920	78.2 mm (3.1 in)
1921	158.5 mm (6.2 in)
1922	84.0 mm (3.3 in)
1923	89.1 mm (3.5 in)
1924	98.8 mm (3.9 in)
1925	72.1 mm (2.8 in)
1926	97.5 mm (3.8 in)
1927	73.6 mm (2.9 in)
1928	96.5 mm (3.8 in)
1929	106.2 mm (4.2 in)
1930	107.9 mm (4.2 in)
1931	79.1 mm (3.1 in)
1932	119.6 mm (4.7 in)
1933	79.0 mm (3.1 in)
1934	126.2 mm (5.0 in)
1935	80.2 mm (3.2 in)
1936	67.8 mm (2.7 in)
1937	142.9 mm (5.6 in)
1938	91.7 mm (3.6 in)
1939	80.5 mm (3.2 in)
1940	77.7 mm (3.1 in)
1941	69.1 mm (2.7 in)
1942	108.5 mm (4.3 in)
1943	80.5 mm (3.2 in)
1944	84.8 mm (3.3 in)
1945	95.5 mm (3.8 in)
1946	72.7 mm (2.9 in)
1947	107.0 mm (4.2 in)
1948	90.9 mm (3.6 in)
1949	177.4 mm (7.0 in)
1950	126.1 mm (5.0 in)
1951	81.0 mm (3.2 in)
1952	84.3 mm (3.3 in)
1953	124.2 mm (4.9 in)
1954	66.6 mm (2.6 in)
1955	98.7 mm (3.9 in)
1956	123.4 mm (4.9 in)
1957	110.3 mm (4.3 in)
1958	91.2 mm (3.6 in)
1959	91.0 mm (3.6 in)
1960	73.5 mm (2.9 in)
1961	74.5 mm (2.9 in)
1962	89.2 mm (3.5 in)
1963	115.5 mm (4.5 in)
1964	89.9 mm (3.5 in)
1965	91.0 mm (3.6 in)
1966	165.7 mm (6.5 in)
1967	n/a
1968	83.0 mm (3.3 in)
1969	0.0 mm (0.00 in)
1970	67.1 mm (2.6 in)
1971	81.1 mm (3.2 in)
1972	83.5 mm (3.3 in)
1973	111.3 mm (4.4 in)
1974	126.5 mm (5.0 in)
1975	54.2 mm (2.1 in)
1976	68.0 mm (2.7 in)
1977	68.8 mm (2.7 in)
1978	88.8 mm (3.5 in)
1979	74.4 mm (2.9 in)
1980	53.6 mm (2.1 in)
1981	49.4 mm (1.9 in)
1982	37.0 mm (1.5 in)
1983	31.8 mm (1.3 in)
1984	43.0 mm (1.7 in)
1985	36.0 mm (1.4 in)
1986	96.1 mm (3.8 in)
1987	41.2 mm (1.6 in)
1988	58.8 mm (2.3 in)
1989	51.4 mm (2.0 in)
1990	49.8 mm (2.0 in)
1991	157.8 mm (6.2 in)
1992	40.8 mm (1.6 in)
1993	50.2 mm (2.0 in)
1994	68.6 mm (2.7 in)
1995	61.4 mm (2.4 in)
1996	134.2 mm (5.3 in)
1997	75.0 mm (3.0 in)
1998	45.8 mm (1.8 in)
1999	99.2 mm (3.9 in)
2000	76.8 mm (3.0 in)
2001	42.6 mm (1.7 in)
2002	56.4 mm (2.2 in)
2003	31.2 mm (1.2 in)
2004	28.6 mm (1.1 in)
2005	62.2 mm (2.4 in)
2006	54.4 mm (2.1 in)
2007	48.6 mm (1.9 in)
2008	45.4 mm (1.8 in)
2009	54.3 mm (2.1 in)
2010	56.4 mm (2.2 in)
2011	42.8 mm (1.7 in)
2012	38.4 mm (1.5 in)
2013	86.0 mm (3.4 in)
2014	52.8 mm (2.1 in)
2015	74.5 mm (2.9 in)
2016	65.7 mm (2.6 in)
2017	82.1 mm (3.2 in)
2018	55.0 mm (2.2 in)
2019	51.0 mm (2.0 in)
2020	39.2 mm (1.5 in)
2021	38.4 mm (1.5 in)
2022	50.3 mm (2.0 in)
2023	89.2 mm (3.5 in)
2024	38.6 mm (1.5 in)
2025	126.7 mm (5.0 in)
2026	85.5 mm (3.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Busselton Shire, 1877 to 2026. The record is 114 days in 2001, marked on the chart; the median year is 43 days.

Longest dry spell (CDD) at Busselton Shire by year
Year	Longest dry spell (CDD)
1877	90 days
1878	31 days
1879	89 days
1885	28 days
1888	31 days
1889	31 days
1891	28 days
1896	31 days
1903	28 days
1907	29 days
1908	38 days
1909	60 days
1910	39 days
1911	51 days
1912	58 days
1913	32 days
1914	37 days
1915	44 days
1916	43 days
1917	50 days
1918	25 days
1919	48 days
1920	73 days
1921	49 days
1922	28 days
1923	47 days
1924	57 days
1925	38 days
1926	44 days
1927	24 days
1928	42 days
1929	37 days
1930	35 days
1931	45 days
1932	37 days
1933	26 days
1934	20 days
1935	36 days
1936	54 days
1937	41 days
1938	58 days
1939	32 days
1940	27 days
1941	36 days
1942	49 days
1943	45 days
1944	53 days
1945	28 days
1946	65 days
1947	38 days
1948	85 days
1949	43 days
1950	51 days
1951	31 days
1952	87 days
1953	54 days
1954	35 days
1955	37 days
1956	63 days
1957	76 days
1958	27 days
1959	52 days
1960	47 days
1961	34 days
1962	46 days
1963	34 days
1964	50 days
1965	32 days
1966	48 days
1967	n/a
1968	39 days
1969	28 days
1970	29 days
1971	47 days
1972	86 days
1973	63 days
1974	52 days
1975	66 days
1976	48 days
1977	37 days
1978	50 days
1979	24 days
1980	41 days
1981	64 days
1982	58 days
1983	44 days
1984	56 days
1985	45 days
1986	34 days
1987	59 days
1988	30 days
1989	31 days
1990	41 days
1991	54 days
1992	32 days
1993	76 days
1994	43 days
1995	82 days
1996	40 days
1997	41 days
1998	49 days
1999	45 days
2000	34 days
2001	114 days
2002	60 days
2003	42 days
2004	60 days
2005	39 days
2006	56 days
2007	18 days
2008	20 days
2009	55 days
2010	37 days
2011	37 days
2012	57 days
2013	51 days
2014	68 days
2015	72 days
2016	21 days
2017	32 days
2018	26 days
2019	41 days
2020	45 days
2021	31 days
2022	73 days
2023	61 days
2024	57 days
2025	30 days
2026	38 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

72 years, 1907 to 2025

A day with at least 51.8 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 127.5 mm (5.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Busselton Shire: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	51.8 mm (2.0 in)
5 years	67.8 mm (2.7 in)
10 years	79.9 mm (3.1 in)
25 years	97.1 mm (3.8 in)
50 years	111.6 mm (4.4 in)
100 years	127.5 mm (5.0 in)	Longer than the 72 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, 72 years of values from 1907 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: 126.5 mm (5.0 in) in 1921; 109.0 mm (4.3 in) in 1909; 104.5 mm (4.1 in) in 2025.

Download the Data

Data for Busselton Shire standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Busselton Shire 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).