Alpha Post Office Weather Records (ASN00035000)

Record envelope, standing records and threshold days for Alpha Post Office (ASN00035000), Australia, with 139 years of record.

Key Facts for Alpha Post Office

Alpha Post Office (ASN00035000) is a weather station in Australia at -23.65 latitude and 146.64 longitude, 355 m (1,165 ft) above sea level.
The station reports from 1887 to 2025, 139 years of record.
0 records set at Alpha Post Office still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Alpha Post Office set a daily record precipitation of 48.6 mm (1.9 in) on 28 March 2025.

About the Station

Location: Australia, -23.65 latitude, 146.64 longitude.
Elevation: 355 m (1,165 ft).
Period of record: 1887 to 2025, 139 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 Alpha 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 Alpha 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 Alpha Post Office still stand.

Wettest Day of Each Month

Mar: 184.7 mm (7.3 in)

The wettest day on record for each calendar month at Alpha Post Office. The most was 184.7 mm (7.3 in) on 1 March 1887.

Record daily precipitation for each month at Alpha Post Office
Month	Record daily precipitation (mm)	Date
Jan	162.4 mm (6.4 in)	17 January 2008
Feb	183.9 mm (7.2 in)	1 February 1922
Mar	184.7 mm (7.3 in)	1 March 1887
Apr	159.0 mm (6.3 in)	19 April 1990
May	89.0 mm (3.5 in)	14 May 1977
Jun	165.9 mm (6.5 in)	9 June 1912
Jul	84.6 mm (3.3 in)	4 July 1936
Aug	68.0 mm (2.7 in)	29 August 1993
Sep	69.9 mm (2.8 in)	20 September 1890
Oct	79.0 mm (3.1 in)	20 October 1975
Nov	134.4 mm (5.3 in)	24 November 1950
Dec	127.0 mm (5.0 in)	8 December 1970

Latest Records

Latest records at Alpha Post Office
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 March 2025	Alpha Post Office, AU	daily rain	48.6 mm (1.9 in)	25.0 mm (1.0 in)	96 years	50 of 100 (Notable)
1 January 2025	Alpha Post Office, AU	daily rain	34.0 mm (1.3 in)	2.0 mm (0.08 in)	119 years	41 of 100 (Notable)
7 November 2023	Alpha Post Office, AU	daily rain	46.0 mm (1.8 in)	7.4 mm (0.29 in)	90 years	42 of 100 (Notable)
24 June 2021	Alpha Post Office, AU	daily rain	38.0 mm (1.5 in)	11.8 mm (0.5 in)	64 years	36 of 100 (Notable)
25 December 2020	Alpha Post Office, AU	daily rain	103.0 mm (4.1 in)	42.0 mm (1.7 in)	84 years	60 of 100 (Major)
24 December 2020	Alpha Post Office, AU	daily rain	62.0 mm (2.4 in)	20.6 mm (0.8 in)	60 years	40 of 100 (Notable)
30 March 2017	Alpha Post Office, AU	daily rain	21.2 mm (0.8 in)	1.8 mm (0.07 in)	6 years	11 of 100 (Routine)
14 January 2017	Alpha Post Office, AU	daily rain	141.0 mm (5.6 in)	69.6 mm (2.7 in)	43 years	59 of 100 (Notable)
21 September 2016	Alpha Post Office, AU	daily rain	42.8 mm (1.7 in)	28.8 mm (1.1 in)	118 years	64 of 100 (Major)
16 July 2016	Alpha Post Office, AU	daily rain	59.0 mm (2.3 in)	26.0 mm (1.0 in)	8 years	30 of 100 (Routine)
19 June 2016	Alpha Post Office, AU	daily rain	36.4 mm (1.4 in)	21.7 mm (0.9 in)	118 years	53 of 100 (Notable)
27 December 2015	Alpha Post Office, AU	daily rain	50.4 mm (2.0 in)	2.9 mm (0.11 in)	108 years	41 of 100 (Notable)
1 November 2015	Alpha Post Office, AU	daily rain	106.8 mm (4.2 in)	62.3 mm (2.5 in)	126 years	80 of 100 (Exceptional)
30 August 2015	Alpha Post Office, AU	daily rain	28.2 mm (1.1 in)	15.5 mm (0.6 in)	112 years	54 of 100 (Notable)
17 June 2015	Alpha Post Office, AU	daily rain	51.0 mm (2.0 in)	18.6 mm (0.7 in)	28 years	29 of 100 (Routine)
22 January 2015	Alpha Post Office, AU	daily rain	82.0 mm (3.2 in)	40.0 mm (1.6 in)	29 years	39 of 100 (Notable)
12 December 2014	Alpha Post Office, AU	daily rain	37.8 mm (1.5 in)	1.8 mm (0.07 in)	23 years	17 of 100 (Routine)
8 September 2014	Alpha Post Office, AU	daily rain	19.0 mm (0.7 in)	14.2 mm (0.6 in)	79 years	20 of 100 (Routine)
16 August 2014	Alpha Post Office, AU	daily rain	38.6 mm (1.5 in)	23.9 mm (0.9 in)	104 years	61 of 100 (Major)
20 February 2014	Alpha Post Office, AU	daily rain	160.0 mm (6.3 in)	64.7 mm (2.5 in)	123 years	74 of 100 (Major)

Extremes by Year

1887 to 2025

Yearly extremes at Alpha Post Office: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	184.7 mm (7.3 in)	1887	63.2 mm (2.5 in)	137
Wettest five days (Rx5day)	316.0 mm (12.4 in)	1922	99.4 mm (3.9 in)	137
Longest dry spell (CDD)	198 days	1946	59 days	137

Wettest day (Rx1day)

The wettest day of the year at Alpha Post Office, 1887 to 2025. The record is 184.7 mm (7.3 in) in 1887, marked on the chart; the median year is 63.2 mm (2.5 in).

Wettest day (Rx1day) at Alpha Post Office by year
Year	Wettest day (Rx1day)
1887	184.7 mm (7.3 in)
1888	50.8 mm (2.0 in)
1889	63.5 mm (2.5 in)
1890	133.4 mm (5.3 in)
1891	81.3 mm (3.2 in)
1892	43.2 mm (1.7 in)
1893	45.0 mm (1.8 in)
1894	85.1 mm (3.4 in)
1895	42.9 mm (1.7 in)
1896	86.9 mm (3.4 in)
1897	40.6 mm (1.6 in)
1898	101.6 mm (4.0 in)
1899	33.0 mm (1.3 in)
1900	37.6 mm (1.5 in)
1901	56.6 mm (2.2 in)
1902	54.6 mm (2.1 in)
1903	39.4 mm (1.6 in)
1904	78.2 mm (3.1 in)
1905	38.4 mm (1.5 in)
1906	93.7 mm (3.7 in)
1907	111.8 mm (4.4 in)
1908	71.1 mm (2.8 in)
1909	35.3 mm (1.4 in)
1910	76.7 mm (3.0 in)
1911	81.3 mm (3.2 in)
1912	165.9 mm (6.5 in)
1913	41.9 mm (1.6 in)
1914	69.9 mm (2.8 in)
1915	41.9 mm (1.6 in)
1916	77.7 mm (3.1 in)
1917	79.2 mm (3.1 in)
1918	69.9 mm (2.8 in)
1919	36.1 mm (1.4 in)
1920	63.5 mm (2.5 in)
1921	102.9 mm (4.1 in)
1922	183.9 mm (7.2 in)
1923	58.2 mm (2.3 in)
1924	117.1 mm (4.6 in)
1925	39.6 mm (1.6 in)
1926	57.4 mm (2.3 in)
1927	104.4 mm (4.1 in)
1928	94.0 mm (3.7 in)
1929	45.7 mm (1.8 in)
1930	44.5 mm (1.8 in)
1931	46.2 mm (1.8 in)
1932	38.6 mm (1.5 in)
1933	50.8 mm (2.0 in)
1934	54.6 mm (2.1 in)
1935	50.3 mm (2.0 in)
1936	84.6 mm (3.3 in)
1937	63.5 mm (2.5 in)
1938	48.3 mm (1.9 in)
1939	52.1 mm (2.1 in)
1940	63.2 mm (2.5 in)
1941	87.1 mm (3.4 in)
1942	36.3 mm (1.4 in)
1943	46.7 mm (1.8 in)
1944	59.9 mm (2.4 in)
1945	44.5 mm (1.8 in)
1946	35.6 mm (1.4 in)
1947	56.9 mm (2.2 in)
1948	45.2 mm (1.8 in)
1949	73.7 mm (2.9 in)
1950	134.4 mm (5.3 in)
1951	101.6 mm (4.0 in)
1952	66.8 mm (2.6 in)
1953	45.7 mm (1.8 in)
1954	76.5 mm (3.0 in)
1955	73.2 mm (2.9 in)
1956	174.0 mm (6.9 in)
1957	63.2 mm (2.5 in)
1958	55.9 mm (2.2 in)
1959	75.7 mm (3.0 in)
1960	68.6 mm (2.7 in)
1961	73.7 mm (2.9 in)
1962	104.6 mm (4.1 in)
1963	108.5 mm (4.3 in)
1964	29.2 mm (1.1 in)
1965	41.4 mm (1.6 in)
1966	82.6 mm (3.3 in)
1967	109.2 mm (4.3 in)
1968	95.3 mm (3.8 in)
1969	77.7 mm (3.1 in)
1970	127.0 mm (5.0 in)
1971	32.5 mm (1.3 in)
1972	75.4 mm (3.0 in)
1973	76.2 mm (3.0 in)
1974	73.4 mm (2.9 in)
1975	79.0 mm (3.1 in)
1976	50.4 mm (2.0 in)
1977	89.0 mm (3.5 in)
1978	101.8 mm (4.0 in)
1979	37.6 mm (1.5 in)
1980	34.0 mm (1.3 in)
1981	83.0 mm (3.3 in)
1982	42.0 mm (1.7 in)
1983	109.0 mm (4.3 in)
1984	52.2 mm (2.1 in)
1985	45.0 mm (1.8 in)
1986	46.0 mm (1.8 in)
1987	73.2 mm (2.9 in)
1988	36.0 mm (1.4 in)
1989	57.4 mm (2.3 in)
1990	159.0 mm (6.3 in)
1991	38.8 mm (1.5 in)
1992	74.0 mm (2.9 in)
1993	68.0 mm (2.7 in)
1994	58.4 mm (2.3 in)
1995	66.0 mm (2.6 in)
1996	55.2 mm (2.2 in)
1997	61.0 mm (2.4 in)
1998	60.0 mm (2.4 in)
1999	69.0 mm (2.7 in)
2000	53.0 mm (2.1 in)
2001	110.0 mm (4.3 in)
2002	24.4 mm (1.0 in)
2003	81.6 mm (3.2 in)
2004	42.4 mm (1.7 in)
2005	52.4 mm (2.1 in)
2006	34.2 mm (1.3 in)
2007	34.6 mm (1.4 in)
2008	162.4 mm (6.4 in)
2009	55.0 mm (2.2 in)
2010	76.0 mm (3.0 in)
2011	68.0 mm (2.7 in)
2012	107.2 mm (4.2 in)
2013	41.6 mm (1.6 in)
2014	160.0 mm (6.3 in)
2015	106.8 mm (4.2 in)
2016	59.0 mm (2.3 in)
2017	141.0 mm (5.6 in)
2018	36.6 mm (1.4 in)
2020	103.0 mm (4.1 in)
2021	38.0 mm (1.5 in)
2023	46.0 mm (1.8 in)
2024	46.0 mm (1.8 in)
2025	48.6 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Alpha Post Office, 1887 to 2025. The record is 316.0 mm (12.4 in) in 1922, marked on the chart; the median year is 99.4 mm (3.9 in).

Wettest five days (Rx5day) at Alpha Post Office by year
Year	Wettest five days (Rx5day)
1887	184.7 mm (7.3 in)
1888	76.5 mm (3.0 in)
1889	120.1 mm (4.7 in)
1890	168.6 mm (6.6 in)
1891	189.3 mm (7.5 in)
1892	76.0 mm (3.0 in)
1893	64.7 mm (2.5 in)
1894	145.3 mm (5.7 in)
1895	57.2 mm (2.3 in)
1896	130.9 mm (5.2 in)
1897	93.7 mm (3.7 in)
1898	214.1 mm (8.4 in)
1899	39.9 mm (1.6 in)
1900	75.8 mm (3.0 in)
1901	68.8 mm (2.7 in)
1902	132.0 mm (5.2 in)
1903	66.3 mm (2.6 in)
1904	116.6 mm (4.6 in)
1905	112.9 mm (4.4 in)
1906	162.5 mm (6.4 in)
1907	152.9 mm (6.0 in)
1908	106.0 mm (4.2 in)
1909	54.1 mm (2.1 in)
1910	174.7 mm (6.9 in)
1911	208.5 mm (8.2 in)
1912	290.7 mm (11.4 in)
1913	78.0 mm (3.1 in)
1914	69.9 mm (2.8 in)
1915	44.7 mm (1.8 in)
1916	140.2 mm (5.5 in)
1917	160.8 mm (6.3 in)
1918	153.2 mm (6.0 in)
1919	66.6 mm (2.6 in)
1920	98.8 mm (3.9 in)
1921	145.3 mm (5.7 in)
1922	316.0 mm (12.4 in)
1923	65.1 mm (2.6 in)
1924	141.2 mm (5.6 in)
1925	63.2 mm (2.5 in)
1926	91.5 mm (3.6 in)
1927	193.6 mm (7.6 in)
1928	116.9 mm (4.6 in)
1929	75.4 mm (3.0 in)
1930	67.6 mm (2.7 in)
1931	59.0 mm (2.3 in)
1932	60.4 mm (2.4 in)
1933	88.7 mm (3.5 in)
1934	72.7 mm (2.9 in)
1935	63.5 mm (2.5 in)
1936	130.1 mm (5.1 in)
1937	106.0 mm (4.2 in)
1938	126.0 mm (5.0 in)
1939	73.1 mm (2.9 in)
1940	118.7 mm (4.7 in)
1941	188.7 mm (7.4 in)
1942	82.5 mm (3.2 in)
1943	87.3 mm (3.4 in)
1944	85.0 mm (3.3 in)
1945	48.3 mm (1.9 in)
1946	70.6 mm (2.8 in)
1947	111.3 mm (4.4 in)
1948	52.3 mm (2.1 in)
1949	134.8 mm (5.3 in)
1950	226.4 mm (8.9 in)
1951	123.7 mm (4.9 in)
1952	99.4 mm (3.9 in)
1953	97.6 mm (3.8 in)
1954	173.8 mm (6.8 in)
1955	199.9 mm (7.9 in)
1956	284.2 mm (11.2 in)
1957	81.5 mm (3.2 in)
1958	84.6 mm (3.3 in)
1959	126.7 mm (5.0 in)
1960	86.6 mm (3.4 in)
1961	76.9 mm (3.0 in)
1962	111.7 mm (4.4 in)
1963	185.8 mm (7.3 in)
1964	57.9 mm (2.3 in)
1965	80.8 mm (3.2 in)
1966	91.2 mm (3.6 in)
1967	118.6 mm (4.7 in)
1968	121.9 mm (4.8 in)
1969	88.9 mm (3.5 in)
1970	143.8 mm (5.7 in)
1971	41.2 mm (1.6 in)
1972	87.0 mm (3.4 in)
1973	131.6 mm (5.2 in)
1974	114.0 mm (4.5 in)
1975	129.6 mm (5.1 in)
1976	92.3 mm (3.6 in)
1977	198.8 mm (7.8 in)
1978	156.6 mm (6.2 in)
1979	67.2 mm (2.6 in)
1980	57.0 mm (2.2 in)
1981	109.0 mm (4.3 in)
1982	52.0 mm (2.0 in)
1983	155.0 mm (6.1 in)
1984	108.0 mm (4.3 in)
1985	59.6 mm (2.3 in)
1986	48.0 mm (1.9 in)
1987	101.2 mm (4.0 in)
1988	101.2 mm (4.0 in)
1989	61.6 mm (2.4 in)
1990	163.2 mm (6.4 in)
1991	75.0 mm (3.0 in)
1992	80.6 mm (3.2 in)
1993	78.0 mm (3.1 in)
1994	117.9 mm (4.6 in)
1995	69.6 mm (2.7 in)
1996	100.8 mm (4.0 in)
1997	133.4 mm (5.3 in)
1998	64.2 mm (2.5 in)
1999	119.2 mm (4.7 in)
2000	74.2 mm (2.9 in)
2001	245.0 mm (9.6 in)
2002	40.8 mm (1.6 in)
2003	148.2 mm (5.8 in)
2004	73.4 mm (2.9 in)
2005	87.0 mm (3.4 in)
2006	55.0 mm (2.2 in)
2007	87.2 mm (3.4 in)
2008	302.2 mm (11.9 in)
2009	123.4 mm (4.9 in)
2010	162.6 mm (6.4 in)
2011	107.6 mm (4.2 in)
2012	180.0 mm (7.1 in)
2013	109.7 mm (4.3 in)
2014	193.2 mm (7.6 in)
2015	111.2 mm (4.4 in)
2016	59.6 mm (2.3 in)
2017	53.8 mm (2.1 in)
2018	52.8 mm (2.1 in)
2020	169.6 mm (6.7 in)
2021	53.4 mm (2.1 in)
2023	46.0 mm (1.8 in)
2024	53.0 mm (2.1 in)
2025	87.0 mm (3.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Alpha Post Office, 1887 to 2025. The record is 198 days in 1946, marked on the chart; the median year is 59 days.

Longest dry spell (CDD) at Alpha Post Office by year
Year	Longest dry spell (CDD)
1887	53 days
1888	91 days
1889	23 days
1890	38 days
1891	52 days
1892	66 days
1893	41 days
1894	58 days
1895	75 days
1896	41 days
1897	87 days
1898	54 days
1899	35 days
1900	80 days
1901	49 days
1902	155 days
1903	36 days
1904	37 days
1905	83 days
1906	98 days
1907	66 days
1908	39 days
1909	61 days
1910	70 days
1911	85 days
1912	102 days
1913	67 days
1914	104 days
1915	62 days
1916	76 days
1917	81 days
1918	104 days
1919	96 days
1920	37 days
1921	57 days
1922	112 days
1923	52 days
1924	55 days
1925	48 days
1926	118 days
1927	81 days
1928	101 days
1929	115 days
1930	39 days
1931	64 days
1932	85 days
1933	40 days
1934	40 days
1935	59 days
1936	112 days
1937	87 days
1938	53 days
1939	80 days
1940	54 days
1941	92 days
1942	43 days
1943	53 days
1944	65 days
1945	49 days
1946	198 days
1947	75 days
1948	89 days
1949	86 days
1950	57 days
1951	100 days
1952	36 days
1953	94 days
1954	27 days
1955	36 days
1956	41 days
1957	63 days
1958	76 days
1959	75 days
1960	52 days
1961	71 days
1962	45 days
1963	73 days
1964	62 days
1965	43 days
1966	44 days
1967	57 days
1968	76 days
1969	61 days
1970	58 days
1971	54 days
1972	69 days
1973	29 days
1974	56 days
1975	52 days
1976	43 days
1977	79 days
1978	47 days
1979	63 days
1980	47 days
1981	39 days
1982	44 days
1983	36 days
1984	53 days
1985	35 days
1986	53 days
1987	35 days
1988	48 days
1989	71 days
1990	77 days
1991	112 days
1992	81 days
1993	66 days
1994	83 days
1995	90 days
1996	66 days
1997	57 days
1998	44 days
1999	93 days
2000	47 days
2001	44 days
2002	102 days
2003	38 days
2004	124 days
2005	36 days
2006	58 days
2007	51 days
2008	66 days
2009	84 days
2010	32 days
2011	73 days
2012	73 days
2013	70 days
2014	59 days
2015	70 days
2016	21 days
2017	57 days
2018	24 days
2020	69 days
2021	64 days
2023	6 days
2024	24 days
2025	42 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

125 years, 1888 to 2020

A day with at least 63.7 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 191.4 mm (7.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Alpha 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	63.7 mm (2.5 in)
5 years	92.2 mm (3.6 in)
10 years	113.1 mm (4.5 in)
25 years	142.3 mm (5.6 in)
50 years	166.0 mm (6.5 in)
100 years	191.4 mm (7.5 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 125 years of values from 1888 to 2020.

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: 183.9 mm (7.2 in) in 1922; 174.0 mm (6.9 in) in 1956; 165.9 mm (6.5 in) in 1912.

Download the Data

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