Cowalla Weather Records (ASN00009013)

Record envelope, standing records and threshold days for Cowalla (ASN00009013), Australia, with 62 years of record.

Key Facts for Cowalla

Cowalla (ASN00009013) is a weather station in Australia at -31.05 latitude and 115.57 longitude, n/a above sea level.
The station reports from 1908 to 1969, 62 years of record.
0 records set at Cowalla still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Cowalla set a daily record precipitation of 26.2 mm (1.0 in) on 12 September 1969.

About the Station

Location: Australia, -31.05 latitude, 115.57 longitude.
Elevation: n/a.
Period of record: 1908 to 1969, 62 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 Cowalla. 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 Cowalla, 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 Cowalla still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Cowalla between 10 June 1945 and 10 June 1945. Each dot is a new record.

Wettest Day of Each Month

Jun: 104.1 mm (4.1 in)

The wettest day on record for each calendar month at Cowalla. The most was 104.1 mm (4.1 in) on 10 June 1945.

Record daily precipitation for each month at Cowalla
Month	Record daily precipitation (mm)	Date
Jan	45.7 mm (1.8 in)	29 January 1963
Feb	52.3 mm (2.1 in)	17 February 1955
Mar	28.4 mm (1.1 in)	8 March 1934
Apr	64.0 mm (2.5 in)	2 April 1964
May	64.3 mm (2.5 in)	9 May 1967
Jun	104.1 mm (4.1 in)	10 June 1945
Jul	74.9 mm (2.9 in)	4 July 1912
Aug	55.9 mm (2.2 in)	6 August 1917
Sep	44.2 mm (1.7 in)	10 September 1925
Oct	71.9 mm (2.8 in)	25 October 1947
Nov	29.7 mm (1.2 in)	25 November 1926
Dec	37.3 mm (1.5 in)	16 December 1923

Latest Records

Latest records at Cowalla
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 September 1969	Cowalla, AU	daily rain	26.2 mm (1.0 in)	8.4 mm (0.33 in)	54 years	36 of 100 (Notable)
13 January 1969	Cowalla, AU	daily rain	3.3 mm (0.13 in)	2.8 mm (0.11 in)	15 years	13 of 100 (Routine)
11 September 1968	Cowalla, AU	daily rain	15.0 mm (0.6 in)	3.1 mm (0.12 in)	55 years	20 of 100 (Routine)
15 July 1968	Cowalla, AU	daily rain	30.2 mm (1.2 in)	2.8 mm (0.11 in)	39 years	20 of 100 (Routine)
13 June 1968	Cowalla, AU	daily rain	70.9 mm (2.8 in)	32.0 mm (1.3 in)	47 years	49 of 100 (Notable)
27 March 1968	Cowalla, AU	daily rain	20.6 mm (0.8 in)	4.3 mm (0.17 in)	8 years	15 of 100 (Routine)
17 March 1968	Cowalla, AU	daily rain	8.9 mm (0.35 in)	0.8 mm (0.03 in)	26 years	14 of 100 (Routine)
8 January 1968	Cowalla, AU	daily rain	2.0 mm (0.08 in)	0.2 mm (0.01 in)	8 years	8 of 100 (Routine)
9 December 1967	Cowalla, AU	daily rain	11.7 mm (0.5 in)	1.5 mm (0.06 in)	44 years	20 of 100 (Routine)
17 May 1967	Cowalla, AU	daily rain	33.8 mm (1.3 in)	12.2 mm (0.5 in)	28 years	27 of 100 (Routine)
9 May 1967	Cowalla, AU	monthly rain	64.3 mm (2.5 in)	2.1 mm (0.08 in)	29 years	26 of 100 (Routine)
22 April 1967	Cowalla, AU	daily rain	37.6 mm (1.5 in)	26.7 mm (1.1 in)	44 years	51 of 100 (Notable)
9 October 1966	Cowalla, AU	daily rain	32.0 mm (1.3 in)	6.3 mm (0.25 in)	1 year	14 of 100 (Routine)
18 September 1966	Cowalla, AU	daily rain	16.5 mm (0.6 in)	2.3 mm (0.09 in)	48 years	20 of 100 (Routine)
24 August 1966	Cowalla, AU	daily rain	29.5 mm (1.2 in)	5.1 mm (0.20 in)	0 years	11 of 100 (Routine)
31 July 1966	Cowalla, AU	daily rain	27.9 mm (1.1 in)	14.7 mm (0.6 in)	55 years	37 of 100 (Notable)
4 April 1966	Cowalla, AU	daily rain	16.0 mm (0.6 in)	13.2 mm (0.5 in)	53 years	20 of 100 (Routine)
12 February 1966	Cowalla, AU	daily rain	11.9 mm (0.5 in)	11.4 mm (0.4 in)	48 years	20 of 100 (Routine)
27 December 1965	Cowalla, AU	daily rain	6.1 mm (0.24 in)	3.6 mm (0.14 in)	46 years	20 of 100 (Routine)
26 November 1965	Cowalla, AU	daily rain	4.1 mm (0.16 in)	3.6 mm (0.14 in)	7 years	14 of 100 (Routine)

Extremes by Year

1908 to 1969

Yearly extremes at Cowalla: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	104.1 mm (4.1 in)	1945	44.8 mm (1.8 in)	62
Wettest five days (Rx5day)	181.1 mm (7.1 in)	1945	78.8 mm (3.1 in)	62
Longest dry spell (CDD)	119 days	1950	55 days	62

Wettest day (Rx1day)

The wettest day of the year at Cowalla, 1908 to 1969. The record is 104.1 mm (4.1 in) in 1945, marked on the chart; the median year is 44.8 mm (1.8 in).

Wettest day (Rx1day) at Cowalla by year
Year	Wettest day (Rx1day)
1908	30.2 mm (1.2 in)
1909	45.5 mm (1.8 in)
1910	47.5 mm (1.9 in)
1911	29.2 mm (1.1 in)
1912	74.9 mm (2.9 in)
1913	36.3 mm (1.4 in)
1914	21.6 mm (0.9 in)
1915	53.1 mm (2.1 in)
1916	51.3 mm (2.0 in)
1917	60.5 mm (2.4 in)
1918	58.4 mm (2.3 in)
1919	50.8 mm (2.0 in)
1920	46.0 mm (1.8 in)
1921	51.8 mm (2.0 in)
1922	28.4 mm (1.1 in)
1923	45.0 mm (1.8 in)
1924	47.8 mm (1.9 in)
1925	44.2 mm (1.7 in)
1926	42.2 mm (1.7 in)
1927	36.6 mm (1.4 in)
1928	48.5 mm (1.9 in)
1929	44.5 mm (1.8 in)
1930	47.2 mm (1.9 in)
1931	41.4 mm (1.6 in)
1932	43.2 mm (1.7 in)
1933	67.3 mm (2.6 in)
1934	86.4 mm (3.4 in)
1935	34.8 mm (1.4 in)
1936	45.0 mm (1.8 in)
1937	62.2 mm (2.4 in)
1938	53.1 mm (2.1 in)
1939	37.8 mm (1.5 in)
1940	48.5 mm (1.9 in)
1941	37.3 mm (1.5 in)
1942	33.8 mm (1.3 in)
1943	38.6 mm (1.5 in)
1944	38.1 mm (1.5 in)
1945	104.1 mm (4.1 in)
1946	42.2 mm (1.7 in)
1947	71.9 mm (2.8 in)
1948	42.2 mm (1.7 in)
1949	32.8 mm (1.3 in)
1950	26.7 mm (1.1 in)
1951	37.1 mm (1.5 in)
1952	46.2 mm (1.8 in)
1953	55.9 mm (2.2 in)
1954	39.9 mm (1.6 in)
1955	52.3 mm (2.1 in)
1956	43.2 mm (1.7 in)
1957	37.6 mm (1.5 in)
1958	38.1 mm (1.5 in)
1959	38.6 mm (1.5 in)
1960	35.6 mm (1.4 in)
1961	59.7 mm (2.4 in)
1962	54.9 mm (2.2 in)
1963	45.7 mm (1.8 in)
1964	64.0 mm (2.5 in)
1965	43.2 mm (1.7 in)
1966	32.0 mm (1.3 in)
1967	64.3 mm (2.5 in)
1968	70.9 mm (2.8 in)
1969	27.7 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Cowalla, 1908 to 1969. The record is 181.1 mm (7.1 in) in 1945, marked on the chart; the median year is 78.8 mm (3.1 in).

Wettest five days (Rx5day) at Cowalla by year
Year	Wettest five days (Rx5day)
1908	64.6 mm (2.5 in)
1909	76.0 mm (3.0 in)
1910	128.1 mm (5.0 in)
1911	78.3 mm (3.1 in)
1912	100.8 mm (4.0 in)
1913	85.8 mm (3.4 in)
1914	47.0 mm (1.9 in)
1915	101.3 mm (4.0 in)
1916	71.7 mm (2.8 in)
1917	125.5 mm (4.9 in)
1918	96.5 mm (3.8 in)
1919	73.4 mm (2.9 in)
1920	107.4 mm (4.2 in)
1921	85.1 mm (3.4 in)
1922	69.3 mm (2.7 in)
1923	122.0 mm (4.8 in)
1924	66.7 mm (2.6 in)
1925	76.7 mm (3.0 in)
1926	91.4 mm (3.6 in)
1927	64.3 mm (2.5 in)
1928	87.8 mm (3.5 in)
1929	90.4 mm (3.6 in)
1930	103.7 mm (4.1 in)
1931	78.7 mm (3.1 in)
1932	91.7 mm (3.6 in)
1933	131.4 mm (5.2 in)
1934	115.1 mm (4.5 in)
1935	63.3 mm (2.5 in)
1936	62.5 mm (2.5 in)
1937	95.4 mm (3.8 in)
1938	68.8 mm (2.7 in)
1939	91.9 mm (3.6 in)
1940	59.7 mm (2.4 in)
1941	71.3 mm (2.8 in)
1942	64.3 mm (2.5 in)
1943	52.6 mm (2.1 in)
1944	54.4 mm (2.1 in)
1945	181.1 mm (7.1 in)
1946	78.5 mm (3.1 in)
1947	87.4 mm (3.4 in)
1948	58.9 mm (2.3 in)
1949	67.9 mm (2.7 in)
1950	61.8 mm (2.4 in)
1951	47.0 mm (1.9 in)
1952	63.9 mm (2.5 in)
1953	70.4 mm (2.8 in)
1954	73.9 mm (2.9 in)
1955	108.5 mm (4.3 in)
1956	95.1 mm (3.7 in)
1957	70.9 mm (2.8 in)
1958	78.9 mm (3.1 in)
1959	88.9 mm (3.5 in)
1960	100.2 mm (3.9 in)
1961	92.8 mm (3.7 in)
1962	125.8 mm (5.0 in)
1963	96.2 mm (3.8 in)
1964	86.4 mm (3.4 in)
1965	127.8 mm (5.0 in)
1966	77.9 mm (3.1 in)
1967	91.0 mm (3.6 in)
1968	35.5 mm (1.4 in)
1969	53.2 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Cowalla, 1908 to 1969. The record is 119 days in 1950, marked on the chart; the median year is 55 days.

Longest dry spell (CDD) at Cowalla by year
Year	Longest dry spell (CDD)
1908	19 days
1909	55 days
1910	52 days
1911	59 days
1912	47 days
1913	33 days
1914	48 days
1915	45 days
1916	37 days
1917	40 days
1918	29 days
1919	33 days
1920	81 days
1921	59 days
1922	48 days
1923	68 days
1924	86 days
1925	43 days
1926	51 days
1927	61 days
1928	62 days
1929	45 days
1930	60 days
1931	64 days
1932	68 days
1933	40 days
1934	36 days
1935	54 days
1936	56 days
1937	72 days
1938	46 days
1939	52 days
1940	62 days
1941	52 days
1942	63 days
1943	64 days
1944	105 days
1945	46 days
1946	79 days
1947	64 days
1948	46 days
1949	59 days
1950	119 days
1951	44 days
1952	43 days
1953	48 days
1954	76 days
1955	49 days
1956	63 days
1957	58 days
1958	67 days
1959	56 days
1960	73 days
1961	24 days
1962	81 days
1963	33 days
1964	54 days
1965	42 days
1966	31 days
1967	73 days
1968	63 days
1969	58 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

60 years, 1909 to 1968

A day with at least 44.7 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 97.1 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Cowalla: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	44.7 mm (1.8 in)
5 years	57.2 mm (2.3 in)
10 years	66.1 mm (2.6 in)
25 years	78.0 mm (3.1 in)
50 years	87.3 mm (3.4 in)
100 years	97.1 mm (3.8 in)	Longer than the 60 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, 60 years of values from 1909 to 1968.

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: 104.1 mm (4.1 in) in 1945; 86.4 mm (3.4 in) in 1934; 74.9 mm (2.9 in) in 1912.

Download the Data

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