Koo Wee Rup Weather Records (ASN00086062)

Record envelope, standing records and threshold days for Koo Wee Rup (ASN00086062), Australia, with 67 years of record.

Key Facts for Koo Wee Rup

Koo Wee Rup (ASN00086062) is a weather station in Australia at -38.20 latitude and 145.50 longitude, 3 m (9 ft) above sea level.
The station reports from 1897 to 1963, 67 years of record.
0 records set at Koo Wee Rup still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Koo Wee Rup set a daily record precipitation of 14.5 mm (0.6 in) on 31 March 1963.

About the Station

Location: Australia, -38.20 latitude, 145.50 longitude.
Elevation: 3 m (9 ft).
Period of record: 1897 to 1963, 67 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 Koo Wee Rup. 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 Koo Wee Rup, 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 Koo Wee Rup still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Koo Wee Rup between 1 December 1934 and 1 December 1934. Each dot is a new record.

Wettest Day of Each Month

Dec: 119.1 mm (4.7 in)

The wettest day on record for each calendar month at Koo Wee Rup. The most was 119.1 mm (4.7 in) on 1 December 1934.

Record daily precipitation for each month at Koo Wee Rup
Month	Record daily precipitation (mm)	Date
Jan	58.4 mm (2.3 in)	29 January 1963
Feb	84.1 mm (3.3 in)	19 February 1951
Mar	78.7 mm (3.1 in)	5 March 1919
Apr	58.4 mm (2.3 in)	12 April 1947
May	54.1 mm (2.1 in)	9 May 1905
Jun	46.2 mm (1.8 in)	13 June 1951
Jul	39.9 mm (1.6 in)	14 July 1952
Aug	72.4 mm (2.9 in)	26 August 1924
Sep	76.7 mm (3.0 in)	23 September 1916
Oct	70.1 mm (2.8 in)	21 October 1953
Nov	72.1 mm (2.8 in)	30 November 1934
Dec	119.1 mm (4.7 in)	1 December 1934

Latest Records

Latest records at Koo Wee Rup
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 March 1963	Koo Wee Rup, AU	daily rain	14.5 mm (0.6 in)	2.3 mm (0.09 in)	44 years	20 of 100 (Routine)
29 January 1963	Koo Wee Rup, AU	monthly rain	58.4 mm (2.3 in)	13.9 mm (0.5 in)	38 years	45 of 100 (Notable)
18 January 1963	Koo Wee Rup, AU	daily rain	17.3 mm (0.7 in)	0.5 mm (0.02 in)	35 years	16 of 100 (Routine)
14 January 1963	Koo Wee Rup, AU	daily rain	20.3 mm (0.8 in)	7.3 mm (0.29 in)	60 years	20 of 100 (Routine)
11 November 1962	Koo Wee Rup, AU	daily rain	16.3 mm (0.6 in)	4.1 mm (0.16 in)	17 years	16 of 100 (Routine)
29 September 1962	Koo Wee Rup, AU	daily rain	34.5 mm (1.4 in)	16.2 mm (0.6 in)	40 years	46 of 100 (Notable)
1 August 1962	Koo Wee Rup, AU	daily rain	12.7 mm (0.5 in)	2.5 mm (0.10 in)	40 years	20 of 100 (Routine)
26 July 1962	Koo Wee Rup, AU	daily rain	15.2 mm (0.6 in)	1.5 mm (0.06 in)	25 years	16 of 100 (Routine)
24 July 1962	Koo Wee Rup, AU	daily rain	20.8 mm (0.8 in)	12.2 mm (0.5 in)	19 years	20 of 100 (Routine)
29 May 1962	Koo Wee Rup, AU	daily rain	24.6 mm (1.0 in)	2.0 mm (0.08 in)	13 years	13 of 100 (Routine)
1 May 1962	Koo Wee Rup, AU	daily rain	37.1 mm (1.5 in)	20.3 mm (0.8 in)	33 years	49 of 100 (Notable)
23 August 1961	Koo Wee Rup, AU	daily rain	18.0 mm (0.7 in)	1.2 mm (0.05 in)	12 years	11 of 100 (Routine)
17 August 1961	Koo Wee Rup, AU	daily rain	22.1 mm (0.9 in)	9.4 mm (0.37 in)	63 years	20 of 100 (Routine)
14 April 1961	Koo Wee Rup, AU	daily rain	12.7 mm (0.5 in)	3.3 mm (0.13 in)	44 years	20 of 100 (Routine)
2 March 1961	Koo Wee Rup, AU	daily rain	33.0 mm (1.3 in)	5.1 mm (0.20 in)	30 years	20 of 100 (Routine)
9 February 1961	Koo Wee Rup, AU	daily rain	19.8 mm (0.8 in)	6.8 mm (0.27 in)	25 years	20 of 100 (Routine)
1 January 1961	Koo Wee Rup, AU	daily rain	13.5 mm (0.5 in)	4.6 mm (0.18 in)	59 years	20 of 100 (Routine)
19 July 1960	Koo Wee Rup, AU	daily rain	18.3 mm (0.7 in)	1.5 mm (0.06 in)	26 years	16 of 100 (Routine)
11 June 1960	Koo Wee Rup, AU	daily rain	9.9 mm (0.39 in)	1.3 mm (0.05 in)	60 years	20 of 100 (Routine)
15 May 1960	Koo Wee Rup, AU	daily rain	12.7 mm (0.5 in)	0.8 mm (0.03 in)	23 years	13 of 100 (Routine)

Extremes by Year

1897 to 1963

Yearly extremes at Koo Wee Rup: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	119.1 mm (4.7 in)	1934	35.1 mm (1.4 in)	65
Wettest five days (Rx5day)	191.2 mm (7.5 in)	1934	62.0 mm (2.4 in)	65
Longest dry spell (CDD)	36 days	1906	18 days	65

Wettest day (Rx1day)

The wettest day of the year at Koo Wee Rup, 1897 to 1963. The record is 119.1 mm (4.7 in) in 1934, marked on the chart; the median year is 35.1 mm (1.4 in).

Wettest day (Rx1day) at Koo Wee Rup by year
Year	Wettest day (Rx1day)
1897	17.8 mm (0.7 in)
1898	30.7 mm (1.2 in)
1899	32.8 mm (1.3 in)
1901	23.1 mm (0.9 in)
1902	39.1 mm (1.5 in)
1903	61.2 mm (2.4 in)
1904	34.8 mm (1.4 in)
1905	54.1 mm (2.1 in)
1906	51.6 mm (2.0 in)
1907	72.1 mm (2.8 in)
1908	23.4 mm (0.9 in)
1909	25.1 mm (1.0 in)
1910	42.2 mm (1.7 in)
1911	40.6 mm (1.6 in)
1912	25.4 mm (1.0 in)
1913	23.6 mm (0.9 in)
1914	33.8 mm (1.3 in)
1915	32.8 mm (1.3 in)
1916	76.7 mm (3.0 in)
1917	29.7 mm (1.2 in)
1918	45.7 mm (1.8 in)
1919	78.7 mm (3.1 in)
1920	30.5 mm (1.2 in)
1921	34.5 mm (1.4 in)
1922	24.4 mm (1.0 in)
1923	29.7 mm (1.2 in)
1924	72.4 mm (2.9 in)
1925	44.5 mm (1.8 in)
1926	30.2 mm (1.2 in)
1927	16.5 mm (0.6 in)
1928	35.1 mm (1.4 in)
1929	36.3 mm (1.4 in)
1930	53.1 mm (2.1 in)
1931	41.4 mm (1.6 in)
1932	33.0 mm (1.3 in)
1933	37.8 mm (1.5 in)
1934	119.1 mm (4.7 in)
1935	34.5 mm (1.4 in)
1936	30.5 mm (1.2 in)
1937	33.3 mm (1.3 in)
1938	37.3 mm (1.5 in)
1939	70.9 mm (2.8 in)
1940	37.6 mm (1.5 in)
1941	24.9 mm (1.0 in)
1942	45.7 mm (1.8 in)
1943	34.5 mm (1.4 in)
1944	45.2 mm (1.8 in)
1945	25.4 mm (1.0 in)
1946	27.2 mm (1.1 in)
1947	58.4 mm (2.3 in)
1948	22.6 mm (0.9 in)
1949	53.1 mm (2.1 in)
1950	45.5 mm (1.8 in)
1951	84.1 mm (3.3 in)
1952	39.9 mm (1.6 in)
1953	70.1 mm (2.8 in)
1954	34.8 mm (1.4 in)
1956	32.5 mm (1.3 in)
1957	16.5 mm (0.6 in)
1958	31.2 mm (1.2 in)
1959	36.3 mm (1.4 in)
1960	43.2 mm (1.7 in)
1961	33.0 mm (1.3 in)
1962	39.6 mm (1.6 in)
1963	58.4 mm (2.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Koo Wee Rup, 1897 to 1963. The record is 191.2 mm (7.5 in) in 1934, marked on the chart; the median year is 62.0 mm (2.4 in).

Wettest five days (Rx5day) at Koo Wee Rup by year
Year	Wettest five days (Rx5day)
1897	36.9 mm (1.5 in)
1898	65.8 mm (2.6 in)
1899	56.2 mm (2.2 in)
1901	38.4 mm (1.5 in)
1902	90.4 mm (3.6 in)
1903	64.0 mm (2.5 in)
1904	51.4 mm (2.0 in)
1905	65.2 mm (2.6 in)
1906	59.7 mm (2.4 in)
1907	118.3 mm (4.7 in)
1908	89.9 mm (3.5 in)
1909	62.0 mm (2.4 in)
1910	59.8 mm (2.4 in)
1911	69.8 mm (2.7 in)
1912	50.5 mm (2.0 in)
1913	61.7 mm (2.4 in)
1914	65.0 mm (2.6 in)
1915	56.5 mm (2.2 in)
1916	145.0 mm (5.7 in)
1917	54.3 mm (2.1 in)
1918	73.2 mm (2.9 in)
1919	126.1 mm (5.0 in)
1920	57.2 mm (2.3 in)
1921	67.5 mm (2.7 in)
1922	44.6 mm (1.8 in)
1923	54.1 mm (2.1 in)
1924	116.3 mm (4.6 in)
1925	56.1 mm (2.2 in)
1926	44.7 mm (1.8 in)
1927	41.5 mm (1.6 in)
1928	78.2 mm (3.1 in)
1929	61.9 mm (2.4 in)
1930	74.8 mm (2.9 in)
1931	75.0 mm (3.0 in)
1932	64.5 mm (2.5 in)
1933	55.6 mm (2.2 in)
1934	191.2 mm (7.5 in)
1935	73.1 mm (2.9 in)
1936	60.2 mm (2.4 in)
1937	84.1 mm (3.3 in)
1938	39.1 mm (1.5 in)
1939	133.4 mm (5.3 in)
1940	49.8 mm (2.0 in)
1941	54.9 mm (2.2 in)
1942	57.9 mm (2.3 in)
1943	39.6 mm (1.6 in)
1944	87.2 mm (3.4 in)
1945	32.5 mm (1.3 in)
1946	38.9 mm (1.5 in)
1947	85.5 mm (3.4 in)
1948	53.4 mm (2.1 in)
1949	120.2 mm (4.7 in)
1950	61.5 mm (2.4 in)
1951	111.9 mm (4.4 in)
1952	83.1 mm (3.3 in)
1953	89.1 mm (3.5 in)
1954	84.1 mm (3.3 in)
1956	56.9 mm (2.2 in)
1957	41.8 mm (1.6 in)
1958	52.3 mm (2.1 in)
1959	67.8 mm (2.7 in)
1960	95.2 mm (3.7 in)
1961	57.0 mm (2.2 in)
1962	67.0 mm (2.6 in)
1963	77.2 mm (3.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Koo Wee Rup, 1897 to 1963. The record is 36 days in 1906, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Koo Wee Rup by year
Year	Longest dry spell (CDD)
1897	23 days
1898	18 days
1899	30 days
1901	16 days
1902	19 days
1903	18 days
1904	26 days
1905	19 days
1906	36 days
1907	23 days
1908	24 days
1909	25 days
1910	22 days
1911	17 days
1912	25 days
1913	25 days
1914	18 days
1915	15 days
1916	19 days
1917	20 days
1918	12 days
1919	14 days
1920	18 days
1921	19 days
1922	19 days
1923	35 days
1924	16 days
1925	12 days
1926	16 days
1927	18 days
1928	16 days
1929	17 days
1930	35 days
1931	18 days
1932	13 days
1933	15 days
1934	19 days
1935	19 days
1936	20 days
1937	16 days
1938	16 days
1939	15 days
1940	18 days
1941	12 days
1942	19 days
1943	16 days
1944	17 days
1945	11 days
1946	11 days
1947	15 days
1948	24 days
1949	13 days
1950	25 days
1951	34 days
1952	21 days
1953	17 days
1954	11 days
1956	8 days
1957	19 days
1958	14 days
1959	25 days
1960	21 days
1961	26 days
1962	24 days
1963	16 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

54 years, 1898 to 1962

A day with at least 38.3 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 119.7 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Koo Wee Rup: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	38.3 mm (1.5 in)
5 years	53.9 mm (2.1 in)
10 years	66.3 mm (2.6 in)
25 years	84.9 mm (3.3 in)
50 years	101.1 mm (4.0 in)
100 years	119.7 mm (4.7 in)	Longer than the 54 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, 54 years of values from 1898 to 1962.

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: 119.1 mm (4.7 in) in 1934; 84.1 mm (3.3 in) in 1951; 78.7 mm (3.1 in) in 1919.

Download the Data

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