Boyanup Weather Records (ASN00009503)

Record envelope, standing records and threshold days for Boyanup (ASN00009503), Australia, with 112 years of record.

Key Facts for Boyanup

Boyanup (ASN00009503) is a weather station in Australia at -33.48 latitude and 115.73 longitude, 37 m (121 ft) above sea level.
The station reports from 1903 to 2014, 112 years of record.
0 records set at Boyanup still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Boyanup set a daily record precipitation of 59.3 mm (2.3 in) on 29 August 2014.

About the Station

Location: Australia, -33.48 latitude, 115.73 longitude.
Elevation: 37 m (121 ft).
Period of record: 1903 to 2014, 112 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 Boyanup. 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 Boyanup, 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 Boyanup still stand.

All-Time Record Progression

2 new records

2 all-time records were set at Boyanup between 5 May 1941 and 10 June 1945. Each dot is a new record.

When Boyanup set new all-time records
Date	Kind	Detail
1941-05-05	Record daily precipitation	Record daily precipitation 101.9 mm (4.0 in)
1945-06-10	Record daily precipitation	Record daily precipitation 106.7 mm (4.2 in)

Wettest Day of Each Month

Jun: 106.7 mm (4.2 in)

The wettest day on record for each calendar month at Boyanup. The most was 106.7 mm (4.2 in) on 10 June 1945.

Record daily precipitation for each month at Boyanup
Month	Record daily precipitation (mm)	Date
Jan	90.2 mm (3.6 in)	22 January 1982
Feb	72.1 mm (2.8 in)	26 February 1915
Mar	72.4 mm (2.9 in)	22 March 1921
Apr	72.9 mm (2.9 in)	27 April 1949
May	101.9 mm (4.0 in)	5 May 1941
Jun	106.7 mm (4.2 in)	10 June 1945
Jul	71.4 mm (2.8 in)	19 July 1965
Aug	66.0 mm (2.6 in)	7 August 1908
Sep	47.5 mm (1.9 in)	16 September 1918
Oct	39.4 mm (1.6 in)	24 October 1907
Nov	33.0 mm (1.3 in)	15 November 1948
Dec	68.8 mm (2.7 in)	13 December 2012

Latest Records

Latest records at Boyanup
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 August 2014	Boyanup, AU	daily rain	59.3 mm (2.3 in)	31.4 mm (1.2 in)	83 years	70 of 100 (Major)
30 November 2013	Boyanup, AU	daily rain	17.0 mm (0.7 in)	4.4 mm (0.17 in)	16 years	20 of 100 (Routine)
17 May 2013	Boyanup, AU	daily rain	35.2 mm (1.4 in)	12.3 mm (0.5 in)	68 years	40 of 100 (Notable)
2 May 2013	Boyanup, AU	daily rain	39.2 mm (1.5 in)	3.1 mm (0.12 in)	96 years	40 of 100 (Notable)
13 December 2012	Boyanup, AU	monthly rain	68.8 mm (2.7 in)	23.8 mm (0.9 in)	11 years	62 of 100 (Major)
12 December 2012	Boyanup, AU	daily rain	41.8 mm (1.6 in)	23.8 mm (0.9 in)	16 years	53 of 100 (Notable)
4 September 2012	Boyanup, AU	daily rain	39.8 mm (1.6 in)	8.6 mm (0.34 in)	81 years	46 of 100 (Notable)
16 August 2005	Boyanup, AU	daily rain	53.2 mm (2.1 in)	23.2 mm (0.9 in)	64 years	56 of 100 (Notable)
19 May 2005	Boyanup, AU	daily rain	62.5 mm (2.5 in)	12.5 mm (0.5 in)	27 years	28 of 100 (Routine)
4 April 2005	Boyanup, AU	daily rain	16.5 mm (0.6 in)	5.1 mm (0.20 in)	70 years	20 of 100 (Routine)
1 April 2005	Boyanup, AU	daily rain	43.2 mm (1.7 in)	31.8 mm (1.3 in)	30 years	58 of 100 (Notable)
6 January 2004	Boyanup, AU	daily rain	7.2 mm (0.28 in)	1.3 mm (0.05 in)	14 years	15 of 100 (Routine)
18 November 2003	Boyanup, AU	daily rain	18.8 mm (0.7 in)	9.2 mm (0.36 in)	28 years	20 of 100 (Routine)
22 September 2003	Boyanup, AU	daily rain	35.3 mm (1.4 in)	15.3 mm (0.6 in)	10 years	34 of 100 (Routine)
25 June 2003	Boyanup, AU	daily rain	96.6 mm (3.8 in)	33.1 mm (1.3 in)	56 years	52 of 100 (Notable)
11 April 2003	Boyanup, AU	daily rain	18.8 mm (0.7 in)	2.8 mm (0.11 in)	18 years	18 of 100 (Routine)
1 November 2002	Boyanup, AU	daily rain (Tie)	13.2 mm (0.5 in)	tie	72 years	7 of 100 (Routine)
4 December 2001	Boyanup, AU	monthly rain	45.0 mm (1.8 in)	10.6 mm (0.4 in)	5 years	39 of 100 (Notable)
1 December 2001	Boyanup, AU	daily rain	25.6 mm (1.0 in)	14.7 mm (0.6 in)	36 years	45 of 100 (Notable)
19 November 2001	Boyanup, AU	daily rain	24.2 mm (1.0 in)	2.0 mm (0.08 in)	8 years	14 of 100 (Routine)

Extremes by Year

1903 to 2014

Yearly extremes at Boyanup: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	106.7 mm (4.2 in)	1945	50.3 mm (2.0 in)	103
Wettest five days (Rx5day)	198.6 mm (7.8 in)	1947	95.8 mm (3.8 in)	103
Longest dry spell (CDD)	105 days	2001	38 days	103

Wettest day (Rx1day)

The wettest day of the year at Boyanup, 1903 to 2014. The record is 106.7 mm (4.2 in) in 1945, marked on the chart; the median year is 50.3 mm (2.0 in).

Wettest day (Rx1day) at Boyanup by year
Year	Wettest day (Rx1day)
1903	0.0 mm (0.00 in)
1907	46.7 mm (1.8 in)
1908	66.0 mm (2.6 in)
1909	38.1 mm (1.5 in)
1910	53.3 mm (2.1 in)
1911	39.4 mm (1.6 in)
1912	57.4 mm (2.3 in)
1913	59.4 mm (2.3 in)
1914	57.2 mm (2.3 in)
1915	72.1 mm (2.8 in)
1916	46.2 mm (1.8 in)
1917	63.5 mm (2.5 in)
1918	82.8 mm (3.3 in)
1919	61.7 mm (2.4 in)
1920	40.6 mm (1.6 in)
1921	72.4 mm (2.9 in)
1922	50.3 mm (2.0 in)
1923	47.5 mm (1.9 in)
1924	34.0 mm (1.3 in)
1925	35.8 mm (1.4 in)
1926	45.2 mm (1.8 in)
1927	57.7 mm (2.3 in)
1928	46.5 mm (1.8 in)
1929	68.1 mm (2.7 in)
1930	38.1 mm (1.5 in)
1931	47.5 mm (1.9 in)
1932	56.4 mm (2.2 in)
1933	40.1 mm (1.6 in)
1934	40.1 mm (1.6 in)
1935	44.7 mm (1.8 in)
1936	52.6 mm (2.1 in)
1937	56.6 mm (2.2 in)
1938	72.1 mm (2.8 in)
1939	54.1 mm (2.1 in)
1940	49.3 mm (1.9 in)
1941	101.9 mm (4.0 in)
1942	41.9 mm (1.6 in)
1943	43.9 mm (1.7 in)
1944	52.6 mm (2.1 in)
1945	106.7 mm (4.2 in)
1946	68.8 mm (2.7 in)
1947	87.6 mm (3.4 in)
1948	43.2 mm (1.7 in)
1949	72.9 mm (2.9 in)
1950	72.1 mm (2.8 in)
1951	43.7 mm (1.7 in)
1952	36.3 mm (1.4 in)
1953	71.1 mm (2.8 in)
1954	38.4 mm (1.5 in)
1955	53.3 mm (2.1 in)
1956	67.8 mm (2.7 in)
1957	47.0 mm (1.9 in)
1958	54.6 mm (2.1 in)
1959	50.3 mm (2.0 in)
1960	58.9 mm (2.3 in)
1961	81.0 mm (3.2 in)
1962	63.5 mm (2.5 in)
1963	50.3 mm (2.0 in)
1964	59.4 mm (2.3 in)
1965	71.4 mm (2.8 in)
1966	48.3 mm (1.9 in)
1967	62.5 mm (2.5 in)
1968	30.2 mm (1.2 in)
1969	44.2 mm (1.7 in)
1970	52.3 mm (2.1 in)
1971	47.0 mm (1.9 in)
1972	65.5 mm (2.6 in)
1973	62.2 mm (2.4 in)
1974	52.4 mm (2.1 in)
1975	37.4 mm (1.5 in)
1976	59.4 mm (2.3 in)
1977	37.0 mm (1.5 in)
1978	50.0 mm (2.0 in)
1979	39.8 mm (1.6 in)
1980	34.8 mm (1.4 in)
1981	40.0 mm (1.6 in)
1982	90.2 mm (3.6 in)
1983	52.6 mm (2.1 in)
1984	35.6 mm (1.4 in)
1985	39.0 mm (1.5 in)
1986	53.0 mm (2.1 in)
1987	57.6 mm (2.3 in)
1988	59.0 mm (2.3 in)
1989	46.2 mm (1.8 in)
1990	34.6 mm (1.4 in)
1991	42.4 mm (1.7 in)
1992	44.4 mm (1.7 in)
1993	43.8 mm (1.7 in)
1994	34.0 mm (1.3 in)
1995	47.4 mm (1.9 in)
1996	40.0 mm (1.6 in)
1997	77.4 mm (3.0 in)
1998	28.4 mm (1.1 in)
1999	53.2 mm (2.1 in)
2000	72.4 mm (2.9 in)
2001	45.0 mm (1.8 in)
2002	30.0 mm (1.2 in)
2003	96.6 mm (3.8 in)
2004	42.6 mm (1.7 in)
2005	62.5 mm (2.5 in)
2012	68.8 mm (2.7 in)
2013	44.0 mm (1.7 in)
2014	59.3 mm (2.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Boyanup, 1903 to 2014. The record is 198.6 mm (7.8 in) in 1947, marked on the chart; the median year is 95.8 mm (3.8 in).

Wettest five days (Rx5day) at Boyanup by year
Year	Wettest five days (Rx5day)
1903	0.0 mm (0.00 in)
1907	82.1 mm (3.2 in)
1908	101.7 mm (4.0 in)
1909	95.1 mm (3.7 in)
1910	129.5 mm (5.1 in)
1911	105.7 mm (4.2 in)
1912	76.4 mm (3.0 in)
1913	116.7 mm (4.6 in)
1914	123.1 mm (4.8 in)
1915	85.9 mm (3.4 in)
1916	75.4 mm (3.0 in)
1917	120.6 mm (4.7 in)
1918	133.6 mm (5.3 in)
1919	101.8 mm (4.0 in)
1920	97.0 mm (3.8 in)
1921	100.4 mm (4.0 in)
1922	96.1 mm (3.8 in)
1923	98.5 mm (3.9 in)
1924	84.0 mm (3.3 in)
1925	79.6 mm (3.1 in)
1926	93.6 mm (3.7 in)
1927	83.1 mm (3.3 in)
1928	94.8 mm (3.7 in)
1929	114.3 mm (4.5 in)
1930	130.3 mm (5.1 in)
1931	77.0 mm (3.0 in)
1932	123.7 mm (4.9 in)
1933	92.7 mm (3.6 in)
1934	78.6 mm (3.1 in)
1935	99.7 mm (3.9 in)
1936	72.9 mm (2.9 in)
1937	107.6 mm (4.2 in)
1938	109.2 mm (4.3 in)
1939	78.2 mm (3.1 in)
1940	103.1 mm (4.1 in)
1941	118.7 mm (4.7 in)
1942	86.3 mm (3.4 in)
1943	72.1 mm (2.8 in)
1944	97.6 mm (3.8 in)
1945	159.2 mm (6.3 in)
1946	156.4 mm (6.2 in)
1947	198.6 mm (7.8 in)
1948	81.3 mm (3.2 in)
1949	118.2 mm (4.7 in)
1950	108.7 mm (4.3 in)
1951	95.8 mm (3.8 in)
1952	78.3 mm (3.1 in)
1953	86.4 mm (3.4 in)
1954	110.5 mm (4.4 in)
1955	103.3 mm (4.1 in)
1956	92.5 mm (3.6 in)
1957	98.6 mm (3.9 in)
1958	136.6 mm (5.4 in)
1959	174.0 mm (6.9 in)
1960	106.7 mm (4.2 in)
1961	158.5 mm (6.2 in)
1962	111.7 mm (4.4 in)
1963	99.8 mm (3.9 in)
1964	144.3 mm (5.7 in)
1965	96.1 mm (3.8 in)
1966	126.0 mm (5.0 in)
1967	146.5 mm (5.8 in)
1968	83.8 mm (3.3 in)
1969	109.7 mm (4.3 in)
1970	91.8 mm (3.6 in)
1971	93.5 mm (3.7 in)
1972	106.4 mm (4.2 in)
1973	79.0 mm (3.1 in)
1974	115.0 mm (4.5 in)
1975	87.8 mm (3.5 in)
1976	82.6 mm (3.3 in)
1977	92.4 mm (3.6 in)
1978	101.8 mm (4.0 in)
1979	64.5 mm (2.5 in)
1980	64.3 mm (2.5 in)
1981	71.8 mm (2.8 in)
1982	116.5 mm (4.6 in)
1983	97.0 mm (3.8 in)
1984	54.0 mm (2.1 in)
1985	62.6 mm (2.5 in)
1986	82.9 mm (3.3 in)
1987	101.4 mm (4.0 in)
1988	84.5 mm (3.3 in)
1989	59.2 mm (2.3 in)
1990	76.4 mm (3.0 in)
1991	72.8 mm (2.9 in)
1992	73.0 mm (2.9 in)
1993	65.5 mm (2.6 in)
1994	59.6 mm (2.3 in)
1995	84.8 mm (3.3 in)
1996	68.6 mm (2.7 in)
1997	140.4 mm (5.5 in)
1998	47.8 mm (1.9 in)
1999	100.2 mm (3.9 in)
2000	79.0 mm (3.1 in)
2001	78.2 mm (3.1 in)
2002	54.8 mm (2.2 in)
2003	154.2 mm (6.1 in)
2004	54.8 mm (2.2 in)
2005	124.5 mm (4.9 in)
2012	111.2 mm (4.4 in)
2013	86.4 mm (3.4 in)
2014	72.9 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Boyanup, 1903 to 2014. The record is 105 days in 2001, marked on the chart; the median year is 38 days.

Longest dry spell (CDD) at Boyanup by year
Year	Longest dry spell (CDD)
1903	28 days
1907	38 days
1908	38 days
1909	54 days
1910	31 days
1911	60 days
1912	55 days
1913	15 days
1914	47 days
1915	28 days
1916	42 days
1917	29 days
1918	25 days
1919	45 days
1920	54 days
1921	27 days
1922	26 days
1923	60 days
1924	29 days
1925	22 days
1926	37 days
1927	28 days
1928	37 days
1929	37 days
1930	35 days
1931	34 days
1932	23 days
1933	28 days
1934	20 days
1935	30 days
1936	51 days
1937	41 days
1938	55 days
1939	31 days
1940	25 days
1941	30 days
1942	51 days
1943	39 days
1944	53 days
1945	28 days
1946	29 days
1947	27 days
1948	63 days
1949	36 days
1950	77 days
1951	24 days
1952	43 days
1953	55 days
1954	59 days
1955	47 days
1956	63 days
1957	64 days
1958	50 days
1959	19 days
1960	26 days
1961	33 days
1962	37 days
1963	34 days
1964	42 days
1965	26 days
1966	27 days
1967	42 days
1968	37 days
1969	44 days
1970	28 days
1971	39 days
1972	83 days
1973	51 days
1974	52 days
1975	39 days
1976	38 days
1977	38 days
1978	48 days
1979	54 days
1980	40 days
1981	64 days
1982	39 days
1983	43 days
1984	41 days
1985	27 days
1986	30 days
1987	47 days
1988	42 days
1989	38 days
1990	27 days
1991	45 days
1992	37 days
1993	76 days
1994	43 days
1995	54 days
1996	43 days
1997	41 days
1998	50 days
1999	46 days
2000	38 days
2001	105 days
2002	32 days
2003	29 days
2004	1 day
2005	1 day
2012	20 days
2013	35 days
2014	23 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

78 years, 1907 to 2000

A day with at least 52.7 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 103.1 mm (4.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Boyanup: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	52.7 mm (2.1 in)
5 years	66.4 mm (2.6 in)
10 years	75.4 mm (3.0 in)
25 years	86.7 mm (3.4 in)
50 years	94.9 mm (3.7 in)
100 years	103.1 mm (4.1 in)	Longer than the 78 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, 78 years of values from 1907 to 2000.

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: 106.7 mm (4.2 in) in 1945; 101.9 mm (4.0 in) in 1941; 87.6 mm (3.4 in) in 1947.

Download the Data

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