Knowsley Post Office Weather Records (ASN00081025)

Record envelope, standing records and threshold days for Knowsley Post Office (ASN00081025), Australia, with 79 years of record.

Key Facts for Knowsley Post Office

Knowsley Post Office (ASN00081025) is a weather station in Australia at -36.83 latitude and 144.58 longitude, 199 m (653 ft) above sea level.
The station reports from 1905 to 1983, 79 years of record.
0 records set at Knowsley Post Office still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Knowsley Post Office set a daily record precipitation of 31.0 mm (1.2 in) on 30 November 1983.

About the Station

Location: Australia, -36.83 latitude, 144.58 longitude.
Elevation: 199 m (653 ft).
Period of record: 1905 to 1983, 79 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 Knowsley 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 Knowsley 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 Knowsley Post Office still stand.

All-Time Record Progression

2 new records

2 all-time records were set at Knowsley Post Office between 8 April 1939 and 17 March 1950. Each dot is a new record.

When Knowsley Post Office set new all-time records
Date	Kind	Detail
1939-04-08	Record daily precipitation	Record daily precipitation 95.0 mm (3.7 in)
1950-03-17	Record daily precipitation	Record daily precipitation 96.5 mm (3.8 in)

Wettest Day of Each Month

Mar: 96.5 mm (3.8 in)

The wettest day on record for each calendar month at Knowsley Post Office. The most was 96.5 mm (3.8 in) on 17 March 1950.

Record daily precipitation for each month at Knowsley Post Office
Month	Record daily precipitation (mm)	Date
Jan	55.6 mm (2.2 in)	19 January 1928
Feb	88.6 mm (3.5 in)	17 February 1972
Mar	96.5 mm (3.8 in)	17 March 1950
Apr	95.0 mm (3.7 in)	8 April 1939
May	69.6 mm (2.7 in)	23 May 1951
Jun	51.6 mm (2.0 in)	18 June 1923
Jul	47.8 mm (1.9 in)	11 July 1933
Aug	47.2 mm (1.9 in)	28 August 1917
Sep	72.4 mm (2.9 in)	8 September 1906
Oct	55.4 mm (2.2 in)	5 October 1974
Nov	55.6 mm (2.2 in)	15 November 1920
Dec	76.2 mm (3.0 in)	5 December 1930

Latest Records

Latest records at Knowsley Post Office
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 November 1983	Knowsley Post Office, AU	daily rain	31.0 mm (1.2 in)	15.8 mm (0.6 in)	73 years	49 of 100 (Notable)
16 October 1983	Knowsley Post Office, AU	daily rain	23.0 mm (0.9 in)	7.8 mm (0.31 in)	18 years	20 of 100 (Routine)
16 July 1983	Knowsley Post Office, AU	daily rain	13.8 mm (0.5 in)	2.4 mm (0.09 in)	9 years	12 of 100 (Routine)
3 May 1983	Knowsley Post Office, AU	daily rain	45.0 mm (1.8 in)	25.7 mm (1.0 in)	40 years	53 of 100 (Notable)
24 April 1983	Knowsley Post Office, AU	daily rain	25.0 mm (1.0 in)	13.6 mm (0.5 in)	44 years	33 of 100 (Routine)
29 March 1982	Knowsley Post Office, AU	daily rain	17.6 mm (0.7 in)	6.2 mm (0.24 in)	57 years	20 of 100 (Routine)
23 March 1982	Knowsley Post Office, AU	daily rain	21.0 mm (0.8 in)	8.3 mm (0.33 in)	19 years	19 of 100 (Routine)
25 June 1981	Knowsley Post Office, AU	daily rain	15.0 mm (0.6 in)	3.1 mm (0.12 in)	68 years	20 of 100 (Routine)
23 June 1981	Knowsley Post Office, AU	daily rain	24.6 mm (1.0 in)	6.8 mm (0.27 in)	71 years	20 of 100 (Routine)
31 March 1981	Knowsley Post Office, AU	daily rain	18.2 mm (0.7 in)	4.7 mm (0.19 in)	12 years	14 of 100 (Routine)
12 January 1981	Knowsley Post Office, AU	daily rain	11.0 mm (0.4 in)	0.8 mm (0.03 in)	52 years	20 of 100 (Routine)
14 December 1980	Knowsley Post Office, AU	daily rain	34.4 mm (1.4 in)	15.2 mm (0.6 in)	5 years	22 of 100 (Routine)
13 October 1980	Knowsley Post Office, AU	daily rain	11.8 mm (0.5 in)	3.8 mm (0.15 in)	2 years	11 of 100 (Routine)
28 June 1980	Knowsley Post Office, AU	daily rain	23.8 mm (0.9 in)	6.8 mm (0.27 in)	70 years	20 of 100 (Routine)
23 April 1980	Knowsley Post Office, AU	daily rain	51.0 mm (2.0 in)	36.8 mm (1.4 in)	34 years	54 of 100 (Notable)
19 April 1980	Knowsley Post Office, AU	daily rain	16.8 mm (0.7 in)	2.0 mm (0.08 in)	6 years	10 of 100 (Routine)
29 February 1980	Knowsley Post Office, AU	daily rain	11.6 mm (0.5 in)	11.6 mm (0.5 in)	72 years	20 of 100 (Routine)
28 September 1979	Knowsley Post Office, AU	daily rain	26.0 mm (1.0 in)	13.0 mm (0.5 in)	4 years	23 of 100 (Routine)
25 September 1979	Knowsley Post Office, AU	daily rain	19.0 mm (0.7 in)	4.8 mm (0.19 in)	62 years	20 of 100 (Routine)
11 September 1979	Knowsley Post Office, AU	daily rain	18.4 mm (0.7 in)	6.0 mm (0.24 in)	64 years	20 of 100 (Routine)

Extremes by Year

1905 to 1983

Yearly extremes at Knowsley Post Office: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	96.5 mm (3.8 in)	1950	36.4 mm (1.4 in)	78
Wettest five days (Rx5day)	165.9 mm (6.5 in)	1939	61.3 mm (2.4 in)	78
Longest dry spell (CDD)	76 days	1923	33 days	78

Wettest day (Rx1day)

The wettest day of the year at Knowsley Post Office, 1905 to 1983. The record is 96.5 mm (3.8 in) in 1950, marked on the chart; the median year is 36.4 mm (1.4 in).

Wettest day (Rx1day) at Knowsley Post Office by year
Year	Wettest day (Rx1day)
1905	17.0 mm (0.7 in)
1906	72.4 mm (2.9 in)
1907	54.4 mm (2.1 in)
1908	34.3 mm (1.4 in)
1909	29.7 mm (1.2 in)
1910	33.3 mm (1.3 in)
1911	53.8 mm (2.1 in)
1912	23.6 mm (0.9 in)
1913	29.5 mm (1.2 in)
1914	27.4 mm (1.1 in)
1915	46.2 mm (1.8 in)
1916	41.9 mm (1.6 in)
1917	47.2 mm (1.9 in)
1918	35.6 mm (1.4 in)
1919	63.5 mm (2.5 in)
1920	55.6 mm (2.2 in)
1921	33.5 mm (1.3 in)
1922	38.1 mm (1.5 in)
1923	51.6 mm (2.0 in)
1924	47.2 mm (1.9 in)
1925	27.7 mm (1.1 in)
1926	25.1 mm (1.0 in)
1927	25.9 mm (1.0 in)
1928	61.2 mm (2.4 in)
1929	35.3 mm (1.4 in)
1930	76.2 mm (3.0 in)
1931	60.7 mm (2.4 in)
1932	34.8 mm (1.4 in)
1933	47.8 mm (1.9 in)
1934	30.2 mm (1.2 in)
1935	28.2 mm (1.1 in)
1936	55.6 mm (2.2 in)
1937	24.6 mm (1.0 in)
1938	21.6 mm (0.9 in)
1939	95.0 mm (3.7 in)
1940	34.3 mm (1.4 in)
1941	34.3 mm (1.4 in)
1942	48.8 mm (1.9 in)
1943	25.4 mm (1.0 in)
1944	14.5 mm (0.6 in)
1945	30.5 mm (1.2 in)
1946	41.7 mm (1.6 in)
1947	31.8 mm (1.3 in)
1948	36.8 mm (1.4 in)
1949	67.3 mm (2.6 in)
1950	96.5 mm (3.8 in)
1951	69.6 mm (2.7 in)
1952	30.2 mm (1.2 in)
1953	40.6 mm (1.6 in)
1954	47.8 mm (1.9 in)
1955	59.9 mm (2.4 in)
1956	28.7 mm (1.1 in)
1957	30.2 mm (1.2 in)
1958	58.2 mm (2.3 in)
1959	34.8 mm (1.4 in)
1960	27.9 mm (1.1 in)
1962	16.5 mm (0.6 in)
1963	26.9 mm (1.1 in)
1964	35.8 mm (1.4 in)
1965	26.2 mm (1.0 in)
1966	42.7 mm (1.7 in)
1967	31.8 mm (1.3 in)
1968	51.8 mm (2.0 in)
1969	24.6 mm (1.0 in)
1970	51.3 mm (2.0 in)
1971	53.8 mm (2.1 in)
1972	88.6 mm (3.5 in)
1973	53.3 mm (2.1 in)
1974	55.4 mm (2.2 in)
1975	47.6 mm (1.9 in)
1976	35.6 mm (1.4 in)
1977	52.0 mm (2.0 in)
1978	54.6 mm (2.1 in)
1979	36.0 mm (1.4 in)
1980	51.0 mm (2.0 in)
1981	24.6 mm (1.0 in)
1982	21.0 mm (0.8 in)
1983	45.0 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Knowsley Post Office, 1905 to 1983. The record is 165.9 mm (6.5 in) in 1939, marked on the chart; the median year is 61.3 mm (2.4 in).

Wettest five days (Rx5day) at Knowsley Post Office by year
Year	Wettest five days (Rx5day)
1905	37.6 mm (1.5 in)
1906	94.8 mm (3.7 in)
1907	96.6 mm (3.8 in)
1908	47.9 mm (1.9 in)
1909	81.5 mm (3.2 in)
1910	61.6 mm (2.4 in)
1911	129.8 mm (5.1 in)
1912	49.2 mm (1.9 in)
1913	41.7 mm (1.6 in)
1914	40.4 mm (1.6 in)
1915	74.2 mm (2.9 in)
1916	145.8 mm (5.7 in)
1917	65.2 mm (2.6 in)
1918	91.9 mm (3.6 in)
1919	67.5 mm (2.7 in)
1920	82.8 mm (3.3 in)
1921	64.9 mm (2.6 in)
1922	73.5 mm (2.9 in)
1923	61.7 mm (2.4 in)
1924	75.1 mm (3.0 in)
1925	46.5 mm (1.8 in)
1926	40.6 mm (1.6 in)
1927	40.6 mm (1.6 in)
1928	138.2 mm (5.4 in)
1929	61.2 mm (2.4 in)
1930	114.3 mm (4.5 in)
1931	80.8 mm (3.2 in)
1932	60.5 mm (2.4 in)
1933	101.6 mm (4.0 in)
1934	42.4 mm (1.7 in)
1935	48.3 mm (1.9 in)
1936	65.0 mm (2.6 in)
1937	48.0 mm (1.9 in)
1938	39.9 mm (1.6 in)
1939	165.9 mm (6.5 in)
1940	36.6 mm (1.4 in)
1941	48.0 mm (1.9 in)
1942	59.0 mm (2.3 in)
1943	25.4 mm (1.0 in)
1944	28.0 mm (1.1 in)
1945	64.7 mm (2.5 in)
1946	70.9 mm (2.8 in)
1947	59.4 mm (2.3 in)
1948	50.9 mm (2.0 in)
1949	107.7 mm (4.2 in)
1950	118.1 mm (4.6 in)
1951	136.4 mm (5.4 in)
1952	40.6 mm (1.6 in)
1953	49.7 mm (2.0 in)
1954	81.6 mm (3.2 in)
1955	71.4 mm (2.8 in)
1956	56.9 mm (2.2 in)
1957	54.3 mm (2.1 in)
1958	73.5 mm (2.9 in)
1959	48.3 mm (1.9 in)
1960	36.3 mm (1.4 in)
1962	19.8 mm (0.8 in)
1963	51.3 mm (2.0 in)
1964	56.4 mm (2.2 in)
1965	39.9 mm (1.6 in)
1966	52.1 mm (2.1 in)
1967	62.6 mm (2.5 in)
1968	51.8 mm (2.0 in)
1969	35.3 mm (1.4 in)
1970	99.4 mm (3.9 in)
1971	85.6 mm (3.4 in)
1972	134.9 mm (5.3 in)
1973	77.4 mm (3.0 in)
1974	97.8 mm (3.9 in)
1975	73.6 mm (2.9 in)
1976	50.4 mm (2.0 in)
1977	52.0 mm (2.0 in)
1978	57.2 mm (2.3 in)
1979	66.0 mm (2.6 in)
1980	67.8 mm (2.7 in)
1981	61.4 mm (2.4 in)
1982	27.8 mm (1.1 in)
1983	52.0 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Knowsley Post Office, 1905 to 1983. The record is 76 days in 1923, marked on the chart; the median year is 33 days.

Longest dry spell (CDD) at Knowsley Post Office by year
Year	Longest dry spell (CDD)
1905	19 days
1906	40 days
1907	25 days
1908	36 days
1909	32 days
1910	26 days
1911	29 days
1912	33 days
1913	31 days
1914	41 days
1915	48 days
1916	27 days
1917	22 days
1918	29 days
1919	39 days
1920	45 days
1921	31 days
1922	49 days
1923	76 days
1924	23 days
1925	38 days
1926	63 days
1927	51 days
1928	53 days
1929	35 days
1930	69 days
1931	43 days
1932	24 days
1933	33 days
1934	44 days
1935	25 days
1936	42 days
1937	31 days
1938	46 days
1939	26 days
1940	32 days
1941	28 days
1942	23 days
1943	32 days
1944	28 days
1945	65 days
1946	23 days
1947	34 days
1948	54 days
1949	32 days
1950	39 days
1951	41 days
1952	26 days
1953	41 days
1954	38 days
1955	20 days
1956	27 days
1957	41 days
1958	36 days
1959	33 days
1960	19 days
1962	37 days
1963	28 days
1964	31 days
1965	52 days
1966	27 days
1967	73 days
1968	55 days
1969	24 days
1970	36 days
1971	22 days
1972	38 days
1973	23 days
1974	22 days
1975	28 days
1976	24 days
1977	27 days
1978	23 days
1979	37 days
1980	46 days
1981	29 days
1982	41 days
1983	61 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

74 years, 1906 to 1983

A day with at least 39.7 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 94.4 mm (3.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Knowsley 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	39.7 mm (1.6 in)
5 years	54.2 mm (2.1 in)
10 years	63.9 mm (2.5 in)
25 years	76.2 mm (3.0 in)
50 years	85.3 mm (3.4 in)
100 years	94.4 mm (3.7 in)	Longer than the 74 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, 74 years of values from 1906 to 1983.

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: 95.0 mm (3.7 in) in 1939; 88.6 mm (3.5 in) in 1972; 76.2 mm (3.0 in) in 1930.

Download the Data

Data for Knowsley Post Office standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Knowsley 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 2026-10-14 (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