Lake Cowal Weather Records (ASN00050022)

Record envelope, standing records and threshold days for Lake Cowal (ASN00050022), Australia, with 70 years of record.

Key Facts for Lake Cowal

Lake Cowal (ASN00050022) is a weather station in Australia at -33.70 latitude and 147.40 longitude, n/a above sea level.
The station reports from 1881 to 1950, 70 years of record.
0 records set at Lake Cowal still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Lake Cowal set a daily record precipitation of 43.2 mm (1.7 in) on 6 April 1950.

About the Station

Location: Australia, -33.70 latitude, 147.40 longitude.
Elevation: n/a.
Period of record: 1881 to 1950, 70 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 Lake Cowal. 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 Lake Cowal, 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 Lake Cowal still stand.

Wettest Day of Each Month

Jan: 136.9 mm (5.4 in)

The wettest day on record for each calendar month at Lake Cowal. The most was 136.9 mm (5.4 in) on 24 January 1885.

Record daily precipitation for each month at Lake Cowal
Month	Record daily precipitation (mm)	Date
Jan	136.9 mm (5.4 in)	24 January 1885
Feb	60.5 mm (2.4 in)	1 February 1908
Mar	75.9 mm (3.0 in)	15 March 1901
Apr	54.4 mm (2.1 in)	24 April 1903
May	46.2 mm (1.8 in)	23 May 1900
Jun	45.2 mm (1.8 in)	23 June 1899
Jul	47.2 mm (1.9 in)	27 July 1912
Aug	45.7 mm (1.8 in)	26 August 1924
Sep	48.3 mm (1.9 in)	10 September 1906
Oct	48.5 mm (1.9 in)	22 October 1882
Nov	91.7 mm (3.6 in)	6 November 1924
Dec	86.9 mm (3.4 in)	4 December 1931

Latest Records

Latest records at Lake Cowal
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 April 1950	Lake Cowal, AU	daily rain	43.2 mm (1.7 in)	15.8 mm (0.6 in)	24 years	32 of 100 (Routine)
3 April 1950	Lake Cowal, AU	daily rain	30.7 mm (1.2 in)	8.1 mm (0.32 in)	33 years	26 of 100 (Routine)
30 March 1950	Lake Cowal, AU	daily rain	37.3 mm (1.5 in)	14.7 mm (0.6 in)	62 years	37 of 100 (Notable)
22 March 1950	Lake Cowal, AU	daily rain	32.3 mm (1.3 in)	5.6 mm (0.22 in)	5 years	12 of 100 (Routine)
20 March 1950	Lake Cowal, AU	daily rain	28.7 mm (1.1 in)	1.8 mm (0.07 in)	19 years	13 of 100 (Routine)
19 March 1950	Lake Cowal, AU	daily rain	52.1 mm (2.1 in)	29.2 mm (1.1 in)	55 years	48 of 100 (Notable)
7 February 1950	Lake Cowal, AU	daily rain	52.8 mm (2.1 in)	27.4 mm (1.1 in)	55 years	49 of 100 (Notable)
6 February 1950	Lake Cowal, AU	daily rain	33.0 mm (1.3 in)	10.6 mm (0.4 in)	60 years	35 of 100 (Notable)
30 August 1948	Lake Cowal, AU	daily rain	16.8 mm (0.7 in)	0.8 mm (0.03 in)	58 years	20 of 100 (Routine)
15 June 1948	Lake Cowal, AU	daily rain	29.2 mm (1.1 in)	10.9 mm (0.4 in)	49 years	36 of 100 (Notable)
3 May 1948	Lake Cowal, AU	daily rain	15.2 mm (0.6 in)	1.0 mm (0.04 in)	35 years	17 of 100 (Routine)
2 December 1947	Lake Cowal, AU	daily rain	54.9 mm (2.2 in)	39.2 mm (1.5 in)	30 years	51 of 100 (Notable)
3 September 1947	Lake Cowal, AU	daily rain	21.3 mm (0.8 in)	11.6 mm (0.5 in)	34 years	20 of 100 (Routine)
28 June 1947	Lake Cowal, AU	daily rain	6.6 mm (0.26 in)	2.0 mm (0.08 in)	30 years	18 of 100 (Routine)
5 June 1947	Lake Cowal, AU	daily rain	17.8 mm (0.7 in)	6.4 mm (0.25 in)	24 years	20 of 100 (Routine)
22 February 1947	Lake Cowal, AU	daily rain	29.7 mm (1.2 in)	2.5 mm (0.10 in)	12 years	11 of 100 (Routine)
29 December 1946	Lake Cowal, AU	daily rain	26.7 mm (1.1 in)	8.7 mm (0.34 in)	27 years	22 of 100 (Routine)
16 March 1946	Lake Cowal, AU	daily rain	33.0 mm (1.3 in)	17.0 mm (0.7 in)	8 years	22 of 100 (Routine)
26 October 1945	Lake Cowal, AU	daily rain	5.8 mm (0.23 in)	2.2 mm (0.09 in)	11 years	12 of 100 (Routine)
1 August 1945	Lake Cowal, AU	daily rain	13.5 mm (0.5 in)	7.9 mm (0.31 in)	58 years	20 of 100 (Routine)

Extremes by Year

1881 to 1950

Yearly extremes at Lake Cowal: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	136.9 mm (5.4 in)	1885	46.5 mm (1.8 in)	69
Wettest five days (Rx5day)	202.2 mm (8.0 in)	1885	63.7 mm (2.5 in)	69
Longest dry spell (CDD)	98 days	1897	36 days	69

Wettest day (Rx1day)

The wettest day of the year at Lake Cowal, 1881 to 1950. The record is 136.9 mm (5.4 in) in 1885, marked on the chart; the median year is 46.5 mm (1.8 in).

Wettest day (Rx1day) at Lake Cowal by year
Year	Wettest day (Rx1day)
1881	45.7 mm (1.8 in)
1882	48.5 mm (1.9 in)
1883	31.8 mm (1.3 in)
1884	25.1 mm (1.0 in)
1885	136.9 mm (5.4 in)
1886	42.4 mm (1.7 in)
1887	55.6 mm (2.2 in)
1888	47.8 mm (1.9 in)
1889	39.9 mm (1.6 in)
1890	68.1 mm (2.7 in)
1891	95.5 mm (3.8 in)
1892	30.7 mm (1.2 in)
1893	30.2 mm (1.2 in)
1894	47.8 mm (1.9 in)
1895	53.8 mm (2.1 in)
1896	36.3 mm (1.4 in)
1897	50.5 mm (2.0 in)
1898	31.0 mm (1.2 in)
1899	45.2 mm (1.8 in)
1900	46.2 mm (1.8 in)
1901	75.9 mm (3.0 in)
1902	26.4 mm (1.0 in)
1903	54.4 mm (2.1 in)
1904	40.1 mm (1.6 in)
1905	47.5 mm (1.9 in)
1906	48.3 mm (1.9 in)
1907	47.0 mm (1.9 in)
1908	60.5 mm (2.4 in)
1909	50.3 mm (2.0 in)
1910	53.3 mm (2.1 in)
1911	57.4 mm (2.3 in)
1912	47.2 mm (1.9 in)
1913	27.2 mm (1.1 in)
1914	22.1 mm (0.9 in)
1915	28.2 mm (1.1 in)
1916	34.5 mm (1.4 in)
1917	47.0 mm (1.9 in)
1918	22.6 mm (0.9 in)
1919	23.1 mm (0.9 in)
1920	46.5 mm (1.8 in)
1921	53.6 mm (2.1 in)
1922	65.3 mm (2.6 in)
1923	40.1 mm (1.6 in)
1924	91.7 mm (3.6 in)
1925	39.9 mm (1.6 in)
1926	68.6 mm (2.7 in)
1927	40.6 mm (1.6 in)
1928	66.3 mm (2.6 in)
1929	40.6 mm (1.6 in)
1930	34.8 mm (1.4 in)
1931	86.9 mm (3.4 in)
1932	30.2 mm (1.2 in)
1933	48.3 mm (1.9 in)
1934	58.7 mm (2.3 in)
1935	22.6 mm (0.9 in)
1936	39.6 mm (1.6 in)
1937	53.1 mm (2.1 in)
1938	25.4 mm (1.0 in)
1939	54.6 mm (2.1 in)
1940	10.7 mm (0.4 in)
1941	10.7 mm (0.4 in)
1943	70.4 mm (2.8 in)
1944	30.0 mm (1.2 in)
1945	52.1 mm (2.1 in)
1946	44.7 mm (1.8 in)
1947	54.9 mm (2.2 in)
1948	29.2 mm (1.1 in)
1949	24.1 mm (0.9 in)
1950	53.3 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Lake Cowal, 1881 to 1950. The record is 202.2 mm (8.0 in) in 1885, marked on the chart; the median year is 63.7 mm (2.5 in).

Wettest five days (Rx5day) at Lake Cowal by year
Year	Wettest five days (Rx5day)
1881	50.6 mm (2.0 in)
1882	66.2 mm (2.6 in)
1883	44.5 mm (1.8 in)
1884	42.5 mm (1.7 in)
1885	202.2 mm (8.0 in)
1886	99.0 mm (3.9 in)
1887	76.9 mm (3.0 in)
1888	49.4 mm (1.9 in)
1889	72.9 mm (2.9 in)
1890	89.4 mm (3.5 in)
1891	101.9 mm (4.0 in)
1892	62.0 mm (2.4 in)
1893	61.7 mm (2.4 in)
1894	103.2 mm (4.1 in)
1895	58.2 mm (2.3 in)
1896	96.2 mm (3.8 in)
1897	97.0 mm (3.8 in)
1898	40.2 mm (1.6 in)
1899	46.8 mm (1.8 in)
1900	52.1 mm (2.1 in)
1901	78.7 mm (3.1 in)
1902	40.7 mm (1.6 in)
1903	78.6 mm (3.1 in)
1904	75.2 mm (3.0 in)
1905	92.0 mm (3.6 in)
1906	51.7 mm (2.0 in)
1907	47.0 mm (1.9 in)
1908	73.8 mm (2.9 in)
1909	67.6 mm (2.7 in)
1910	76.1 mm (3.0 in)
1911	66.3 mm (2.6 in)
1912	64.9 mm (2.6 in)
1913	60.5 mm (2.4 in)
1914	28.5 mm (1.1 in)
1915	41.6 mm (1.6 in)
1916	63.7 mm (2.5 in)
1917	73.1 mm (2.9 in)
1918	37.4 mm (1.5 in)
1919	53.6 mm (2.1 in)
1920	48.8 mm (1.9 in)
1921	114.2 mm (4.5 in)
1922	96.0 mm (3.8 in)
1923	52.8 mm (2.1 in)
1924	143.8 mm (5.7 in)
1925	64.3 mm (2.5 in)
1926	88.4 mm (3.5 in)
1927	45.9 mm (1.8 in)
1928	118.7 mm (4.7 in)
1929	59.8 mm (2.4 in)
1930	56.4 mm (2.2 in)
1931	117.9 mm (4.6 in)
1932	53.3 mm (2.1 in)
1933	54.4 mm (2.1 in)
1934	66.8 mm (2.6 in)
1935	38.4 mm (1.5 in)
1936	58.1 mm (2.3 in)
1937	69.1 mm (2.7 in)
1938	43.5 mm (1.7 in)
1939	79.5 mm (3.1 in)
1940	10.7 mm (0.4 in)
1941	10.7 mm (0.4 in)
1943	77.3 mm (3.0 in)
1944	38.1 mm (1.5 in)
1945	86.9 mm (3.4 in)
1946	57.9 mm (2.3 in)
1947	122.5 mm (4.8 in)
1948	41.9 mm (1.6 in)
1949	63.5 mm (2.5 in)
1950	128.6 mm (5.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Lake Cowal, 1881 to 1950. The record is 98 days in 1897, marked on the chart; the median year is 36 days.

Longest dry spell (CDD) at Lake Cowal by year
Year	Longest dry spell (CDD)
1881	39 days
1882	86 days
1883	40 days
1884	49 days
1885	33 days
1886	33 days
1887	24 days
1888	39 days
1889	52 days
1890	24 days
1891	27 days
1892	53 days
1893	32 days
1894	26 days
1895	59 days
1896	26 days
1897	98 days
1898	30 days
1899	55 days
1900	30 days
1901	44 days
1902	41 days
1903	48 days
1904	32 days
1905	31 days
1906	49 days
1907	34 days
1908	50 days
1909	21 days
1910	36 days
1911	53 days
1912	53 days
1913	41 days
1914	26 days
1915	37 days
1916	27 days
1917	24 days
1918	19 days
1919	41 days
1920	25 days
1921	29 days
1922	41 days
1923	39 days
1924	42 days
1925	21 days
1926	34 days
1927	26 days
1928	36 days
1929	35 days
1930	24 days
1931	26 days
1932	29 days
1933	37 days
1934	39 days
1935	38 days
1936	29 days
1937	41 days
1938	34 days
1939	42 days
1940	73 days
1941	36 days
1943	18 days
1944	38 days
1945	32 days
1946	30 days
1947	27 days
1948	68 days
1949	37 days
1950	35 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

63 years, 1881 to 1947

A day with at least 44.1 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 111.3 mm (4.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Lake Cowal: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	44.1 mm (1.7 in)
5 years	60.6 mm (2.4 in)
10 years	72.0 mm (2.8 in)
25 years	87.3 mm (3.4 in)
50 years	99.1 mm (3.9 in)
100 years	111.3 mm (4.4 in)	Longer than the 63 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, 63 years of values from 1881 to 1947.

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: 136.9 mm (5.4 in) in 1885; 95.5 mm (3.8 in) in 1891; 91.7 mm (3.6 in) in 1924.

Download the Data

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