Coolgardie Post Office Weather Records (ASN00012018)

Record envelope, standing records and threshold days for Coolgardie Post Office (ASN00012018), Australia, with 133 years of record.

Key Facts for Coolgardie Post Office

Coolgardie Post Office (ASN00012018) is a weather station in Australia at -30.95 latitude and 121.17 longitude, 427 m (1,401 ft) above sea level.
The station reports from 1893 to 2025, 133 years of record.
0 records set at Coolgardie Post Office still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Coolgardie Post Office set a daily record precipitation of 24.0 mm (0.9 in) on 20 November 2024.

About the Station

Location: Australia, -30.95 latitude, 121.17 longitude.
Elevation: 427 m (1,401 ft).
Period of record: 1893 to 2025, 133 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 Coolgardie Post Office. 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 Coolgardie Post Office, 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 Coolgardie Post Office still stand.

All-Time Record Progression

2 new records

2 all-time records were set at Coolgardie Post Office between 22 February 1948 and 23 January 1967. Each dot is a new record.

When Coolgardie Post Office set new all-time records
Date	Kind	Detail
1948-02-22	Record daily precipitation	Record daily precipitation 135.4 mm (5.3 in)
1967-01-23	Record daily precipitation	Record daily precipitation 181.4 mm (7.1 in)

Wettest Day of Each Month

Jan: 181.4 mm (7.1 in)

The wettest day on record for each calendar month at Coolgardie Post Office. The most was 181.4 mm (7.1 in) on 23 January 1967.

Record daily precipitation for each month at Coolgardie Post Office
Month	Record daily precipitation (mm)	Date
Jan	181.4 mm (7.1 in)	23 January 1967
Feb	135.4 mm (5.3 in)	22 February 1948
Mar	81.8 mm (3.2 in)	11 March 2000
Apr	51.6 mm (2.0 in)	17 April 1919
May	42.4 mm (1.7 in)	14 May 1921
Jun	49.0 mm (1.9 in)	6 June 1957
Jul	29.6 mm (1.2 in)	26 July 1985
Aug	53.0 mm (2.1 in)	11 August 1994
Sep	43.9 mm (1.7 in)	13 September 1954
Oct	65.8 mm (2.6 in)	19 October 1909
Nov	56.1 mm (2.2 in)	27 November 1958
Dec	48.3 mm (1.9 in)	13 December 1930

Latest Records

Latest records at Coolgardie Post Office
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 November 2024	Coolgardie Post Office, AU	daily rain	24.0 mm (0.9 in)	11.4 mm (0.4 in)	39 years	20 of 100 (Routine)
19 November 2024	Coolgardie Post Office, AU	daily rain	38.0 mm (1.5 in)	17.2 mm (0.7 in)	87 years	58 of 100 (Notable)
11 February 2020	Coolgardie Post Office, AU	daily rain (Tie)	17.0 mm (0.7 in)	tie	92 years	9 of 100 (Routine)
9 January 2020	Coolgardie Post Office, AU	daily rain	17.0 mm (0.7 in)	9.9 mm (0.39 in)	57 years	20 of 100 (Routine)
26 December 2019	Coolgardie Post Office, AU	daily rain	8.0 mm (0.31 in)	2.4 mm (0.09 in)	14 years	17 of 100 (Routine)
14 August 2019	Coolgardie Post Office, AU	daily rain	15.6 mm (0.6 in)	2.2 mm (0.09 in)	20 years	19 of 100 (Routine)
27 December 2016	Coolgardie Post Office, AU	daily rain	12.2 mm (0.5 in)	1.8 mm (0.07 in)	14 years	16 of 100 (Routine)
27 April 2016	Coolgardie Post Office, AU	daily rain	8.8 mm (0.35 in)	2.2 mm (0.09 in)	23 years	18 of 100 (Routine)
4 December 2015	Coolgardie Post Office, AU	daily rain	21.5 mm (0.8 in)	11.1 mm (0.4 in)	64 years	20 of 100 (Routine)
31 March 2015	Coolgardie Post Office, AU	daily rain	33.0 mm (1.3 in)	9.9 mm (0.39 in)	96 years	46 of 100 (Notable)
25 October 2011	Coolgardie Post Office, AU	daily rain	22.6 mm (0.9 in)	12.0 mm (0.5 in)	2 years	20 of 100 (Routine)
4 October 2011	Coolgardie Post Office, AU	daily rain	14.0 mm (0.6 in)	4.9 mm (0.19 in)	40 years	20 of 100 (Routine)
22 July 2011	Coolgardie Post Office, AU	daily rain	16.7 mm (0.7 in)	2.0 mm (0.08 in)	46 years	20 of 100 (Routine)
19 July 2011	Coolgardie Post Office, AU	daily rain (Tie)	15.0 mm (0.6 in)	tie	49 years	6 of 100 (Routine)
26 April 2011	Coolgardie Post Office, AU	daily rain	9.0 mm (0.35 in)	0.9 mm (0.04 in)	88 years	20 of 100 (Routine)
6 January 2011	Coolgardie Post Office, AU	daily rain	29.2 mm (1.1 in)	16.2 mm (0.6 in)	7 years	20 of 100 (Routine)
2 September 2010	Coolgardie Post Office, AU	daily rain	11.0 mm (0.4 in)	2.4 mm (0.09 in)	91 years	20 of 100 (Routine)
10 February 2010	Coolgardie Post Office, AU	daily rain	90.4 mm (3.6 in)	61.2 mm (2.4 in)	50 years	65 of 100 (Major)
7 December 2009	Coolgardie Post Office, AU	daily rain	23.4 mm (0.9 in)	12.0 mm (0.5 in)	6 years	20 of 100 (Routine)
29 June 2009	Coolgardie Post Office, AU	daily rain	14.2 mm (0.6 in)	5.8 mm (0.23 in)	44 years	20 of 100 (Routine)

Extremes by Year

1893 to 2025

Yearly extremes at Coolgardie Post Office: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	181.4 mm (7.1 in)	1967	30.5 mm (1.2 in)	123
Wettest five days (Rx5day)	228.4 mm (9.0 in)	1948	43.4 mm (1.7 in)	123
Longest dry spell (CDD)	365 days	2018	48 days	123

Wettest day (Rx1day)

The wettest day of the year at Coolgardie Post Office, 1893 to 2025. The record is 181.4 mm (7.1 in) in 1967, marked on the chart; the median year is 30.5 mm (1.2 in).

Wettest day (Rx1day) at Coolgardie Post Office by year
Year	Wettest day (Rx1day)
1893	0.0 mm (0.00 in)
1894	0.0 mm (0.00 in)
1895	0.0 mm (0.00 in)
1896	0.0 mm (0.00 in)
1898	0.0 mm (0.00 in)
1899	0.0 mm (0.00 in)
1902	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1904	0.0 mm (0.00 in)
1906	0.0 mm (0.00 in)
1907	48.3 mm (1.9 in)
1908	41.9 mm (1.6 in)
1909	65.8 mm (2.6 in)
1910	17.8 mm (0.7 in)
1911	29.0 mm (1.1 in)
1912	17.5 mm (0.7 in)
1913	35.8 mm (1.4 in)
1914	33.0 mm (1.3 in)
1915	36.1 mm (1.4 in)
1916	28.7 mm (1.1 in)
1917	45.5 mm (1.8 in)
1918	34.5 mm (1.4 in)
1919	51.6 mm (2.0 in)
1920	18.3 mm (0.7 in)
1921	42.4 mm (1.7 in)
1922	52.6 mm (2.1 in)
1923	16.0 mm (0.6 in)
1924	38.9 mm (1.5 in)
1925	46.7 mm (1.8 in)
1926	41.1 mm (1.6 in)
1927	50.8 mm (2.0 in)
1928	17.0 mm (0.7 in)
1929	32.8 mm (1.3 in)
1930	48.3 mm (1.9 in)
1931	21.1 mm (0.8 in)
1932	31.5 mm (1.2 in)
1933	24.9 mm (1.0 in)
1934	30.5 mm (1.2 in)
1935	20.3 mm (0.8 in)
1936	29.0 mm (1.1 in)
1937	36.1 mm (1.4 in)
1938	18.8 mm (0.7 in)
1939	57.7 mm (2.3 in)
1940	19.8 mm (0.8 in)
1941	18.8 mm (0.7 in)
1942	44.2 mm (1.7 in)
1943	58.4 mm (2.3 in)
1944	16.5 mm (0.6 in)
1945	11.4 mm (0.4 in)
1946	11.7 mm (0.5 in)
1947	20.3 mm (0.8 in)
1948	135.4 mm (5.3 in)
1949	28.4 mm (1.1 in)
1950	13.2 mm (0.5 in)
1951	45.7 mm (1.8 in)
1952	55.4 mm (2.2 in)
1953	40.9 mm (1.6 in)
1954	43.9 mm (1.7 in)
1955	32.0 mm (1.3 in)
1956	22.4 mm (0.9 in)
1957	49.0 mm (1.9 in)
1958	56.1 mm (2.2 in)
1959	31.2 mm (1.2 in)
1960	29.2 mm (1.1 in)
1961	117.3 mm (4.6 in)
1962	20.6 mm (0.8 in)
1963	44.7 mm (1.8 in)
1964	20.8 mm (0.8 in)
1965	42.9 mm (1.7 in)
1966	47.2 mm (1.9 in)
1967	181.4 mm (7.1 in)
1968	37.1 mm (1.5 in)
1969	7.6 mm (0.30 in)
1970	27.7 mm (1.1 in)
1971	50.8 mm (2.0 in)
1972	17.3 mm (0.7 in)
1973	22.9 mm (0.9 in)
1974	30.6 mm (1.2 in)
1975	74.0 mm (2.9 in)
1976	25.2 mm (1.0 in)
1977	16.8 mm (0.7 in)
1978	58.8 mm (2.3 in)
1979	26.2 mm (1.0 in)
1980	35.0 mm (1.4 in)
1981	25.4 mm (1.0 in)
1982	30.4 mm (1.2 in)
1983	14.2 mm (0.6 in)
1984	36.6 mm (1.4 in)
1985	29.6 mm (1.2 in)
1986	24.0 mm (0.9 in)
1987	86.0 mm (3.4 in)
1988	17.0 mm (0.7 in)
1989	33.8 mm (1.3 in)
1990	27.9 mm (1.1 in)
1991	10.0 mm (0.4 in)
1992	50.0 mm (2.0 in)
1993	23.8 mm (0.9 in)
1994	53.0 mm (2.1 in)
1995	128.0 mm (5.0 in)
1996	17.2 mm (0.7 in)
1997	23.0 mm (0.9 in)
1998	25.4 mm (1.0 in)
1999	56.2 mm (2.2 in)
2000	99.8 mm (3.9 in)
2001	28.6 mm (1.1 in)
2002	65.6 mm (2.6 in)
2003	21.6 mm (0.9 in)
2004	33.4 mm (1.3 in)
2005	37.0 mm (1.5 in)
2006	66.4 mm (2.6 in)
2007	42.2 mm (1.7 in)
2008	23.0 mm (0.9 in)
2009	72.6 mm (2.9 in)
2010	90.4 mm (3.6 in)
2011	29.2 mm (1.1 in)
2012	14.0 mm (0.6 in)
2015	33.0 mm (1.3 in)
2016	50.0 mm (2.0 in)
2018	0.0 mm (0.00 in)
2019	15.6 mm (0.6 in)
2020	28.0 mm (1.1 in)
2024	38.0 mm (1.5 in)
2025	31.0 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Coolgardie Post Office, 1893 to 2025. The record is 228.4 mm (9.0 in) in 1948, marked on the chart; the median year is 43.4 mm (1.7 in).

Wettest five days (Rx5day) at Coolgardie Post Office by year
Year	Wettest five days (Rx5day)
1893	0.0 mm (0.00 in)
1894	0.0 mm (0.00 in)
1895	0.0 mm (0.00 in)
1896	0.0 mm (0.00 in)
1898	0.0 mm (0.00 in)
1899	0.0 mm (0.00 in)
1902	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1904	0.0 mm (0.00 in)
1906	0.0 mm (0.00 in)
1907	66.3 mm (2.6 in)
1908	57.9 mm (2.3 in)
1909	70.1 mm (2.8 in)
1910	24.3 mm (1.0 in)
1911	49.4 mm (1.9 in)
1912	26.6 mm (1.0 in)
1913	43.4 mm (1.7 in)
1914	44.7 mm (1.8 in)
1915	65.6 mm (2.6 in)
1916	49.5 mm (1.9 in)
1917	83.1 mm (3.3 in)
1918	73.1 mm (2.9 in)
1919	90.5 mm (3.6 in)
1920	20.6 mm (0.8 in)
1921	48.0 mm (1.9 in)
1922	65.5 mm (2.6 in)
1923	29.2 mm (1.1 in)
1924	40.9 mm (1.6 in)
1925	71.4 mm (2.8 in)
1926	41.4 mm (1.6 in)
1927	112.8 mm (4.4 in)
1928	24.9 mm (1.0 in)
1929	34.6 mm (1.4 in)
1930	81.8 mm (3.2 in)
1931	36.4 mm (1.4 in)
1932	37.8 mm (1.5 in)
1933	42.9 mm (1.7 in)
1934	59.5 mm (2.3 in)
1935	55.7 mm (2.2 in)
1936	31.5 mm (1.2 in)
1937	107.0 mm (4.2 in)
1938	45.0 mm (1.8 in)
1939	117.1 mm (4.6 in)
1940	20.6 mm (0.8 in)
1941	38.3 mm (1.5 in)
1942	74.7 mm (2.9 in)
1943	81.5 mm (3.2 in)
1944	31.7 mm (1.2 in)
1945	25.4 mm (1.0 in)
1946	14.7 mm (0.6 in)
1947	22.3 mm (0.9 in)
1948	228.4 mm (9.0 in)
1949	36.9 mm (1.5 in)
1950	26.9 mm (1.1 in)
1951	70.1 mm (2.8 in)
1952	107.2 mm (4.2 in)
1953	61.2 mm (2.4 in)
1954	53.0 mm (2.1 in)
1955	52.3 mm (2.1 in)
1956	23.6 mm (0.9 in)
1957	99.5 mm (3.9 in)
1958	56.1 mm (2.2 in)
1959	49.0 mm (1.9 in)
1960	48.6 mm (1.9 in)
1961	117.3 mm (4.6 in)
1962	30.3 mm (1.2 in)
1963	67.3 mm (2.6 in)
1964	28.9 mm (1.1 in)
1965	46.2 mm (1.8 in)
1966	47.2 mm (1.9 in)
1967	186.5 mm (7.3 in)
1968	71.6 mm (2.8 in)
1969	11.7 mm (0.5 in)
1970	36.5 mm (1.4 in)
1971	58.7 mm (2.3 in)
1972	25.4 mm (1.0 in)
1973	40.2 mm (1.6 in)
1974	44.2 mm (1.7 in)
1975	80.2 mm (3.2 in)
1976	32.0 mm (1.3 in)
1977	16.8 mm (0.7 in)
1978	79.2 mm (3.1 in)
1979	50.0 mm (2.0 in)
1980	37.6 mm (1.5 in)
1981	31.2 mm (1.2 in)
1982	45.9 mm (1.8 in)
1983	15.6 mm (0.6 in)
1984	38.6 mm (1.5 in)
1985	13.4 mm (0.5 in)
1986	31.8 mm (1.3 in)
1987	96.4 mm (3.8 in)
1988	18.6 mm (0.7 in)
1989	39.4 mm (1.6 in)
1990	44.9 mm (1.8 in)
1991	18.6 mm (0.7 in)
1992	65.8 mm (2.6 in)
1993	32.3 mm (1.3 in)
1994	61.0 mm (2.4 in)
1995	161.2 mm (6.3 in)
1996	28.2 mm (1.1 in)
1997	18.0 mm (0.7 in)
1998	35.2 mm (1.4 in)
1999	80.6 mm (3.2 in)
2000	102.4 mm (4.0 in)
2001	35.4 mm (1.4 in)
2002	65.6 mm (2.6 in)
2003	35.0 mm (1.4 in)
2004	46.4 mm (1.8 in)
2005	76.2 mm (3.0 in)
2006	74.0 mm (2.9 in)
2007	48.4 mm (1.9 in)
2008	41.2 mm (1.6 in)
2009	115.0 mm (4.5 in)
2010	107.0 mm (4.2 in)
2011	7.7 mm (0.30 in)
2012	19.4 mm (0.8 in)
2015	33.0 mm (1.3 in)
2016	50.0 mm (2.0 in)
2018	0.0 mm (0.00 in)
2019	17.2 mm (0.7 in)
2020	42.5 mm (1.7 in)
2024	62.0 mm (2.4 in)
2025	51.0 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Coolgardie Post Office, 1893 to 2025. The record is 365 days in 2018, marked on the chart; the median year is 48 days.

Longest dry spell (CDD) at Coolgardie Post Office by year
Year	Longest dry spell (CDD)
1893	59 days
1894	59 days
1895	31 days
1896	31 days
1898	31 days
1899	31 days
1902	31 days
1903	31 days
1904	29 days
1906	31 days
1907	50 days
1908	36 days
1909	49 days
1910	40 days
1911	64 days
1912	42 days
1913	64 days
1914	59 days
1915	58 days
1916	58 days
1917	62 days
1918	44 days
1919	48 days
1920	56 days
1921	64 days
1922	43 days
1923	77 days
1924	38 days
1925	25 days
1926	33 days
1927	44 days
1928	50 days
1929	60 days
1930	48 days
1931	50 days
1932	48 days
1933	39 days
1934	54 days
1935	37 days
1936	41 days
1937	32 days
1938	60 days
1939	70 days
1940	58 days
1941	58 days
1942	38 days
1943	34 days
1944	61 days
1945	74 days
1946	69 days
1947	32 days
1948	41 days
1949	45 days
1950	125 days
1951	54 days
1952	49 days
1953	51 days
1954	112 days
1955	31 days
1956	48 days
1957	67 days
1958	52 days
1959	50 days
1960	85 days
1961	109 days
1962	47 days
1963	47 days
1964	40 days
1965	50 days
1966	37 days
1967	46 days
1968	51 days
1969	59 days
1970	44 days
1971	44 days
1972	67 days
1973	32 days
1974	36 days
1975	37 days
1976	61 days
1977	83 days
1978	84 days
1979	52 days
1980	55 days
1981	42 days
1982	44 days
1983	51 days
1984	46 days
1985	49 days
1986	41 days
1987	25 days
1988	42 days
1989	51 days
1990	50 days
1991	56 days
1992	34 days
1993	32 days
1994	60 days
1995	39 days
1996	37 days
1997	31 days
1998	61 days
1999	31 days
2000	63 days
2001	64 days
2002	35 days
2003	36 days
2004	37 days
2005	57 days
2006	32 days
2007	36 days
2008	54 days
2009	41 days
2010	36 days
2011	3 days
2012	50 days
2015	89 days
2016	48 days
2018	365 days
2019	106 days
2020	23 days
2024	54 days
2025	45 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

95 years, 1907 to 2019

A day with at least 32.2 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 144.3 mm (5.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Coolgardie Post Office: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	32.2 mm (1.3 in)
5 years	52.8 mm (2.1 in)
10 years	69.5 mm (2.7 in)
25 years	95.1 mm (3.7 in)
50 years	117.9 mm (4.6 in)
100 years	144.3 mm (5.7 in)	Longer than the 95 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, 95 years of values from 1907 to 2019.

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: 181.4 mm (7.1 in) in 1967; 135.4 mm (5.3 in) in 1948; 128.0 mm (5.0 in) in 1995.

Download the Data

Data for Coolgardie Post Office standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Coolgardie Post Office 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 2026-10-13 (13 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