Ganmain Post Office Weather Records (ASN00074044)

Record envelope, standing records and threshold days for Ganmain Post Office (ASN00074044), Australia, with 112 years of record.

Key Facts for Ganmain Post Office

Ganmain Post Office (ASN00074044) is a weather station in Australia at -34.79 latitude and 147.04 longitude, 190 m (623 ft) above sea level.
The station reports from 1899 to 2010, 112 years of record.
0 records set at Ganmain Post Office still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Ganmain Post Office set a daily record precipitation of 52.0 mm (2.0 in) on 25 May 2010.

About the Station

Location: Australia, -34.79 latitude, 147.04 longitude.
Elevation: 190 m (623 ft).
Period of record: 1899 to 2010, 112 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 Ganmain 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 Ganmain 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 Ganmain Post Office still stand.

All-Time Record Progression

4 new records

4 all-time records were set at Ganmain Post Office between 29 January 1954 and 11 January 1974. Each dot is a new record.

When Ganmain Post Office set new all-time records
Date	Kind	Detail
1954-01-29	Record daily precipitation	Record daily precipitation 76.7 mm (3.0 in)
1959-02-12	Record daily precipitation	Record daily precipitation 94.0 mm (3.7 in)
1966-03-16	Record daily precipitation	Record daily precipitation 101.1 mm (4.0 in)
1974-01-11	Record daily precipitation	Record daily precipitation 116.2 mm (4.6 in)

Wettest Day of Each Month

Jan: 116.2 mm (4.6 in)

The wettest day on record for each calendar month at Ganmain Post Office. The most was 116.2 mm (4.6 in) on 11 January 1974.

Record daily precipitation for each month at Ganmain Post Office
Month	Record daily precipitation (mm)	Date
Jan	116.2 mm (4.6 in)	11 January 1974
Feb	94.0 mm (3.7 in)	12 February 1959
Mar	101.1 mm (4.0 in)	16 March 1966
Apr	75.6 mm (3.0 in)	1 April 1989
May	88.0 mm (3.5 in)	30 May 1978
Jun	55.1 mm (2.2 in)	24 June 1931
Jul	36.8 mm (1.4 in)	27 July 1936
Aug	48.4 mm (1.9 in)	26 August 1983
Sep	47.0 mm (1.9 in)	26 September 1960
Oct	53.3 mm (2.1 in)	5 October 1917
Nov	79.2 mm (3.1 in)	8 November 1971
Dec	87.0 mm (3.4 in)	3 December 1980

Latest Records

Latest records at Ganmain Post Office
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 May 2010	Ganmain Post Office, AU	daily rain	52.0 mm (2.0 in)	9.8 mm (0.39 in)	104 years	52 of 100 (Notable)
7 March 2010	Ganmain Post Office, AU	daily rain	86.6 mm (3.4 in)	58.7 mm (2.3 in)	100 years	80 of 100 (Exceptional)
5 March 2010	Ganmain Post Office, AU	daily rain	26.6 mm (1.0 in)	3.2 mm (0.13 in)	60 years	30 of 100 (Routine)
25 December 2009	Ganmain Post Office, AU	daily rain	57.0 mm (2.2 in)	35.0 mm (1.4 in)	16 years	49 of 100 (Notable)
26 November 2009	Ganmain Post Office, AU	daily rain	34.2 mm (1.3 in)	24.0 mm (0.9 in)	0 years	35 of 100 (Notable)
2 June 2009	Ganmain Post Office, AU	daily rain	21.6 mm (0.9 in)	6.4 mm (0.25 in)	46 years	20 of 100 (Routine)
11 April 2009	Ganmain Post Office, AU	daily rain	22.0 mm (0.9 in)	1.0 mm (0.04 in)	35 years	20 of 100 (Routine)
12 December 2008	Ganmain Post Office, AU	daily rain	31.4 mm (1.2 in)	7.3 mm (0.29 in)	38 years	28 of 100 (Routine)
26 November 2008	Ganmain Post Office, AU	daily rain	10.2 mm (0.4 in)	1.2 mm (0.05 in)	1 year	11 of 100 (Routine)
7 July 2008	Ganmain Post Office, AU	daily rain	15.4 mm (0.6 in)	1.0 mm (0.04 in)	15 years	15 of 100 (Routine)
8 December 2007	Ganmain Post Office, AU	daily rain	37.0 mm (1.5 in)	15.4 mm (0.6 in)	20 years	31 of 100 (Routine)
26 November 2007	Ganmain Post Office, AU	daily rain	9.0 mm (0.35 in)	3.4 mm (0.13 in)	48 years	20 of 100 (Routine)
27 February 2007	Ganmain Post Office, AU	daily rain	17.0 mm (0.7 in)	1.5 mm (0.06 in)	68 years	20 of 100 (Routine)
15 July 2006	Ganmain Post Office, AU	daily rain	21.0 mm (0.8 in)	4.2 mm (0.17 in)	32 years	20 of 100 (Routine)
11 September 2005	Ganmain Post Office, AU	daily rain (Tie)	27.0 mm (1.1 in)	tie	14 years	3 of 100 (Routine)
4 August 2005	Ganmain Post Office, AU	daily rain	33.0 mm (1.3 in)	26.4 mm (1.0 in)	62 years	68 of 100 (Major)
9 July 2005	Ganmain Post Office, AU	daily rain	14.4 mm (0.6 in)	3.7 mm (0.15 in)	100 years	20 of 100 (Routine)
14 June 2005	Ganmain Post Office, AU	daily rain	10.8 mm (0.4 in)	0.8 mm (0.03 in)	8 years	13 of 100 (Routine)
26 June 2004	Ganmain Post Office, AU	daily rain	19.2 mm (0.8 in)	7.5 mm (0.30 in)	70 years	20 of 100 (Routine)
23 November 2003	Ganmain Post Office, AU	daily rain	30.6 mm (1.2 in)	19.7 mm (0.8 in)	85 years	56 of 100 (Notable)

Extremes by Year

1899 to 2010

Yearly extremes at Ganmain Post Office: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	116.2 mm (4.6 in)	1974	39.2 mm (1.5 in)	102
Wettest five days (Rx5day)	154.7 mm (6.1 in)	1954	59.2 mm (2.3 in)	102
Longest dry spell (CDD)	67 days	1902	35 days	102

Wettest day (Rx1day)

The wettest day of the year at Ganmain Post Office, 1899 to 2010. The record is 116.2 mm (4.6 in) in 1974, marked on the chart; the median year is 39.2 mm (1.5 in).

Wettest day (Rx1day) at Ganmain Post Office by year
Year	Wettest day (Rx1day)
1899	26.9 mm (1.1 in)
1900	31.8 mm (1.3 in)
1901	26.4 mm (1.0 in)
1902	21.3 mm (0.8 in)
1903	27.9 mm (1.1 in)
1904	40.6 mm (1.6 in)
1905	18.3 mm (0.7 in)
1906	44.5 mm (1.8 in)
1907	23.9 mm (0.9 in)
1908	31.8 mm (1.3 in)
1909	27.9 mm (1.1 in)
1910	38.6 mm (1.5 in)
1911	66.0 mm (2.6 in)
1912	21.6 mm (0.9 in)
1913	47.2 mm (1.9 in)
1914	34.8 mm (1.4 in)
1915	21.8 mm (0.9 in)
1916	39.4 mm (1.6 in)
1917	53.3 mm (2.1 in)
1918	39.6 mm (1.6 in)
1920	27.4 mm (1.1 in)
1922	50.8 mm (2.0 in)
1931	55.1 mm (2.2 in)
1932	36.6 mm (1.4 in)
1933	67.8 mm (2.7 in)
1934	49.3 mm (1.9 in)
1935	45.5 mm (1.8 in)
1936	50.8 mm (2.0 in)
1937	63.5 mm (2.5 in)
1938	31.8 mm (1.3 in)
1939	61.5 mm (2.4 in)
1940	33.0 mm (1.3 in)
1941	23.1 mm (0.9 in)
1942	39.9 mm (1.6 in)
1943	23.4 mm (0.9 in)
1944	23.6 mm (0.9 in)
1945	19.8 mm (0.8 in)
1946	30.0 mm (1.2 in)
1947	43.2 mm (1.7 in)
1948	38.6 mm (1.5 in)
1949	24.1 mm (0.9 in)
1950	39.9 mm (1.6 in)
1951	39.4 mm (1.6 in)
1952	41.9 mm (1.6 in)
1953	36.3 mm (1.4 in)
1954	76.7 mm (3.0 in)
1955	41.9 mm (1.6 in)
1956	52.6 mm (2.1 in)
1957	31.2 mm (1.2 in)
1958	47.5 mm (1.9 in)
1959	94.0 mm (3.7 in)
1960	47.0 mm (1.9 in)
1961	28.2 mm (1.1 in)
1962	44.5 mm (1.8 in)
1963	30.7 mm (1.2 in)
1964	32.0 mm (1.3 in)
1965	28.2 mm (1.1 in)
1966	101.1 mm (4.0 in)
1967	27.2 mm (1.1 in)
1968	36.8 mm (1.4 in)
1969	57.4 mm (2.3 in)
1970	37.8 mm (1.5 in)
1971	79.2 mm (3.1 in)
1972	43.7 mm (1.7 in)
1973	39.4 mm (1.6 in)
1974	116.2 mm (4.6 in)
1975	59.2 mm (2.3 in)
1976	38.4 mm (1.5 in)
1977	37.4 mm (1.5 in)
1978	88.0 mm (3.5 in)
1979	33.6 mm (1.3 in)
1980	87.0 mm (3.4 in)
1981	48.2 mm (1.9 in)
1982	89.1 mm (3.5 in)
1983	48.4 mm (1.9 in)
1984	57.6 mm (2.3 in)
1985	23.7 mm (0.9 in)
1986	37.8 mm (1.5 in)
1987	20.4 mm (0.8 in)
1988	47.8 mm (1.9 in)
1989	75.6 mm (3.0 in)
1990	24.4 mm (1.0 in)
1991	42.0 mm (1.7 in)
1992	53.0 mm (2.1 in)
1993	36.6 mm (1.4 in)
1994	50.8 mm (2.0 in)
1995	51.0 mm (2.0 in)
1996	52.0 mm (2.0 in)
1997	36.2 mm (1.4 in)
1998	39.0 mm (1.5 in)
1999	63.0 mm (2.5 in)
2000	31.0 mm (1.2 in)
2001	31.6 mm (1.2 in)
2002	32.0 mm (1.3 in)
2003	58.0 mm (2.3 in)
2004	19.2 mm (0.8 in)
2005	34.0 mm (1.3 in)
2006	26.0 mm (1.0 in)
2007	37.0 mm (1.5 in)
2008	31.4 mm (1.2 in)
2009	57.0 mm (2.2 in)
2010	86.6 mm (3.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ganmain Post Office, 1899 to 2010. The record is 154.7 mm (6.1 in) in 1954, marked on the chart; the median year is 59.2 mm (2.3 in).

Wettest five days (Rx5day) at Ganmain Post Office by year
Year	Wettest five days (Rx5day)
1899	49.5 mm (1.9 in)
1900	44.5 mm (1.8 in)
1901	50.0 mm (2.0 in)
1902	36.8 mm (1.4 in)
1903	76.8 mm (3.0 in)
1904	51.3 mm (2.0 in)
1905	31.6 mm (1.2 in)
1906	55.7 mm (2.2 in)
1907	44.2 mm (1.7 in)
1908	53.4 mm (2.1 in)
1909	42.7 mm (1.7 in)
1910	75.9 mm (3.0 in)
1911	81.3 mm (3.2 in)
1912	38.2 mm (1.5 in)
1913	65.0 mm (2.6 in)
1914	74.7 mm (2.9 in)
1915	36.5 mm (1.4 in)
1916	85.8 mm (3.4 in)
1917	61.5 mm (2.4 in)
1918	78.0 mm (3.1 in)
1920	46.0 mm (1.8 in)
1922	74.9 mm (2.9 in)
1931	85.3 mm (3.4 in)
1932	39.4 mm (1.6 in)
1933	88.4 mm (3.5 in)
1934	89.1 mm (3.5 in)
1935	65.6 mm (2.6 in)
1936	58.7 mm (2.3 in)
1937	76.2 mm (3.0 in)
1938	66.6 mm (2.6 in)
1939	104.1 mm (4.1 in)
1940	42.9 mm (1.7 in)
1941	49.3 mm (1.9 in)
1942	55.6 mm (2.2 in)
1943	42.5 mm (1.7 in)
1944	31.0 mm (1.2 in)
1945	40.9 mm (1.6 in)
1946	54.9 mm (2.2 in)
1947	43.2 mm (1.7 in)
1948	45.3 mm (1.8 in)
1949	61.5 mm (2.4 in)
1950	98.8 mm (3.9 in)
1951	78.0 mm (3.1 in)
1952	69.9 mm (2.8 in)
1953	36.3 mm (1.4 in)
1954	154.7 mm (6.1 in)
1955	67.1 mm (2.6 in)
1956	105.2 mm (4.1 in)
1957	57.1 mm (2.2 in)
1958	68.5 mm (2.7 in)
1959	110.2 mm (4.3 in)
1960	57.4 mm (2.3 in)
1961	49.3 mm (1.9 in)
1962	45.3 mm (1.8 in)
1963	40.3 mm (1.6 in)
1964	65.8 mm (2.6 in)
1965	62.8 mm (2.5 in)
1966	123.2 mm (4.9 in)
1967	27.5 mm (1.1 in)
1968	54.2 mm (2.1 in)
1969	65.7 mm (2.6 in)
1970	63.2 mm (2.5 in)
1971	101.0 mm (4.0 in)
1972	60.2 mm (2.4 in)
1973	52.6 mm (2.1 in)
1974	123.4 mm (4.9 in)
1975	63.4 mm (2.5 in)
1976	44.0 mm (1.7 in)
1977	46.4 mm (1.8 in)
1978	101.3 mm (4.0 in)
1979	38.4 mm (1.5 in)
1980	90.4 mm (3.6 in)
1981	58.2 mm (2.3 in)
1982	91.1 mm (3.6 in)
1983	39.8 mm (1.6 in)
1984	69.4 mm (2.7 in)
1985	37.0 mm (1.5 in)
1986	50.4 mm (2.0 in)
1987	48.6 mm (1.9 in)
1988	78.6 mm (3.1 in)
1989	91.0 mm (3.6 in)
1990	52.4 mm (2.1 in)
1991	88.3 mm (3.5 in)
1992	68.6 mm (2.7 in)
1993	59.6 mm (2.3 in)
1994	68.4 mm (2.7 in)
1995	71.6 mm (2.8 in)
1996	56.0 mm (2.2 in)
1997	36.2 mm (1.4 in)
1998	66.4 mm (2.6 in)
1999	65.0 mm (2.6 in)
2000	41.1 mm (1.6 in)
2001	31.6 mm (1.2 in)
2002	94.2 mm (3.7 in)
2003	80.0 mm (3.1 in)
2004	29.2 mm (1.1 in)
2005	48.8 mm (1.9 in)
2006	29.6 mm (1.2 in)
2007	39.0 mm (1.5 in)
2008	45.0 mm (1.8 in)
2009	64.7 mm (2.5 in)
2010	121.2 mm (4.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ganmain Post Office, 1899 to 2010. The record is 67 days in 1902, marked on the chart; the median year is 35 days.

Longest dry spell (CDD) at Ganmain Post Office by year
Year	Longest dry spell (CDD)
1899	37 days
1900	43 days
1901	44 days
1902	67 days
1903	41 days
1904	43 days
1905	30 days
1906	58 days
1907	12 days
1908	65 days
1909	30 days
1910	63 days
1911	31 days
1912	40 days
1913	41 days
1914	52 days
1915	44 days
1916	26 days
1917	27 days
1918	29 days
1920	6 days
1922	35 days
1931	34 days
1932	36 days
1933	32 days
1934	38 days
1935	37 days
1936	30 days
1937	41 days
1938	48 days
1939	31 days
1940	46 days
1941	34 days
1942	35 days
1943	41 days
1944	50 days
1945	38 days
1946	27 days
1947	27 days
1948	54 days
1949	25 days
1950	35 days
1951	38 days
1952	42 days
1953	32 days
1954	39 days
1955	24 days
1956	18 days
1957	52 days
1958	27 days
1959	25 days
1960	22 days
1961	34 days
1962	37 days
1963	31 days
1964	31 days
1965	53 days
1966	19 days
1967	59 days
1968	38 days
1969	18 days
1970	15 days
1971	22 days
1972	36 days
1973	31 days
1974	17 days
1975	35 days
1976	26 days
1977	33 days
1978	48 days
1979	36 days
1980	38 days
1981	37 days
1982	38 days
1983	23 days
1984	33 days
1985	42 days
1986	35 days
1987	27 days
1988	34 days
1989	19 days
1990	32 days
1991	49 days
1992	22 days
1993	25 days
1994	26 days
1995	57 days
1996	20 days
1997	31 days
1998	63 days
1999	24 days
2000	30 days
2001	30 days
2002	34 days
2003	47 days
2004	45 days
2005	38 days
2006	56 days
2007	34 days
2008	40 days
2009	27 days
2010	32 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

86 years, 1900 to 2009

A day with at least 39.3 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 118.0 mm (4.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Ganmain 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	39.3 mm (1.5 in)
5 years	55.6 mm (2.2 in)
10 years	68.1 mm (2.7 in)
25 years	86.1 mm (3.4 in)
50 years	101.3 mm (4.0 in)
100 years	118.0 mm (4.6 in)	Longer than the 86 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, 86 years of values from 1900 to 2009.

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: 116.2 mm (4.6 in) in 1974; 101.1 mm (4.0 in) in 1966; 94.0 mm (3.7 in) in 1959.

Download the Data

Data for Ganmain Post Office standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ganmain 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 2026-10-12 (12 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