Ganmain Post Office Threshold Days by Year (ASN00074044)

4 fixed thresholds counted per year at Ganmain Post Office (ASN00074044): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ganmain Post Office Thresholds

Ganmain Post Office: days with 10 mm (0.39 in) or more of precipitation in 86 years, most in 1956 with 33.
Ganmain Post Office: days with 25 mm (0.98 in) or more of precipitation in 76 years, most in 1917 with 8.
Ganmain Post Office: days with 50 mm (1.97 in) or more of precipitation in 25 years, most in 1931 with 2.
Ganmain Post Office: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1966 with 1.
4 fixed thresholds have at least one qualifying day at Ganmain Post Office.

Days with 10 mm (0.39 in) or more of precipitation

86 years with a qualifying day

Days per year at Ganmain Post Office with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1956.

Days with 10 mm (0.39 in) or more of precipitation per year at Ganmain Post Office
Year	Days	Decade average
1900	20	15.3
1901	10	15.3
1903	15	15.3
1904	17	15.3
1908	13	15.3
1909	17	15.3
1910	18	17
1911	17	17
1912	15	17
1913	15	17
1914	7	17
1915	14	17
1916	26	17
1917	24	17
1931	22	16.6
1932	11	16.6
1933	13	16.6
1934	24	16.6
1935	13	16.6
1936	17	16.6
1937	11	16.6
1938	12	16.6
1939	26	16.6
1940	8	12.6
1941	11	12.6
1942	15	12.6
1943	17	12.6
1944	6	12.6
1945	9	12.6
1946	15	12.6
1947	16	12.6
1948	12	12.6
1949	17	12.6
1950	24	17.4
1951	11	17.4
1952	20	17.4
1953	18	17.4
1954	14	17.4
1955	15	17.4
1956	33	17.4
1957	8	17.4
1958	16	17.4
1959	15	17.4
1960	17	14.5
1961	14	14.5
1962	14	14.5
1963	18	14.5
1964	13	14.5
1965	12	14.5
1966	17	14.5
1967	5	14.5
1968	13	14.5
1969	22	14.5
1970	18	17.7
1973	19	17.7
1974	25	17.7
1975	16	17.7
1978	19	17.7
1979	9	17.7
1980	11	13.1
1981	14	13.1
1982	2	13.1
1986	15	13.1
1987	13	13.1
1988	19	13.1
1989	18	13.1
1990	18	17.8
1991	8	17.8
1992	20	17.8
1993	25	17.8
1994	12	17.8
1995	20	17.8
1996	21	17.8
1997	16	17.8
1998	17	17.8
1999	21	17.8
2000	20	11.8
2001	11	11.8
2002	8	11.8
2003	10	11.8
2004	12	11.8
2005	16	11.8
2006	4	11.8
2007	10	11.8
2008	15	11.8
2009	12	11.8

For each year, a bar from the first to the last day at Ganmain Post Office meeting 10 mm (0.39 in).

First to last qualifying date each year at Ganmain Post Office
Year	First date	Last date
1900	1900-01-21	1900-11-18
1901	1901-03-15	1901-10-29
1903	1903-03-12	1903-10-22
1904	1904-01-03	1904-12-18
1908	1908-02-01	1908-09-21
1909	1909-01-19	1909-11-09
1910	1910-01-11	1910-12-01
1911	1911-01-13	1911-12-01
1912	1912-02-08	1912-12-26
1913	1913-01-03	1913-10-29
1914	1914-03-25	1914-12-14
1915	1915-05-04	1915-12-15
1916	1916-01-29	1916-12-09
1917	1917-01-03	1917-12-12
1931	1931-01-02	1931-11-16
1932	1932-02-07	1932-11-22
1933	1933-01-21	1933-12-15
1934	1934-01-07	1934-12-01
1935	1935-01-05	1935-12-03
1936	1936-01-04	1936-12-14
1937	1937-01-19	1937-12-29
1938	1938-01-15	1938-10-31
1939	1939-02-27	1939-11-17
1940	1940-04-04	1940-12-30
1941	1941-01-03	1941-11-05
1942	1942-02-12	1942-11-22
1943	1943-01-03	1943-11-20
1944	1944-04-24	1944-10-17
1945	1945-01-14	1945-11-17
1946	1946-01-19	1946-11-19
1947	1947-03-13	1947-12-18
1948	1948-01-02	1948-12-30
1949	1949-01-11	1949-12-20
1950	1950-01-18	1950-12-22
1951	1951-02-26	1951-11-27
1952	1952-03-20	1952-11-27
1953	1953-01-05	1953-12-07
1954	1954-01-29	1954-12-11
1955	1955-02-11	1955-10-30
1956	1956-01-17	1956-10-26
1957	1957-02-08	1957-12-31
1958	1958-02-19	1958-12-16
1959	1959-02-06	1959-10-29
1960	1960-01-04	1960-12-27
1961	1961-03-01	1961-12-18
1962	1962-01-11	1962-11-21
1963	1963-04-29	1963-12-17
1964	1964-01-09	1964-12-23
1965	1965-04-12	1965-12-03
1966	1966-01-30	1966-12-07
1967	1967-03-03	1967-10-12
1968	1968-01-22	1968-12-27
1969	1969-01-15	1969-12-03
1970	1970-01-03	1970-12-12
1973	1973-01-13	1973-11-29
1974	1974-01-05	1974-10-29
1975	1975-01-28	1975-12-29
1978	1978-01-05	1978-12-26
1979	1979-01-22	1979-11-05
1980	1980-01-14	1980-12-14
1981	1981-02-05	1981-12-25
1982	1982-03-24	1982-05-30
1986	1986-01-16	1986-12-08
1987	1987-02-16	1987-12-02
1988	1988-01-02	1988-12-26
1989	1989-01-01	1989-11-12
1990	1990-01-09	1990-12-11
1991	1991-01-06	1991-10-25
1992	1992-01-25	1992-12-25
1993	1993-01-02	1993-12-27
1994	1994-02-05	1994-12-23
1995	1995-01-04	1995-12-06
1996	1996-01-01	1996-12-26
1997	1997-01-28	1997-12-14
1998	1998-02-08	1998-12-16
1999	1999-01-09	1999-12-27
2000	2000-01-27	2000-11-13
2001	2001-02-05	2001-11-07
2002	2002-02-03	2002-09-17
2003	2003-02-21	2003-12-03
2004	2004-01-07	2004-12-09
2005	2005-01-21	2005-12-03
2006	2006-01-17	2006-07-15
2007	2007-01-07	2007-12-08
2008	2008-01-19	2008-12-12
2009	2009-02-12	2009-12-25

Every Fixed Threshold

Fixed thresholds at Ganmain Post Office
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	86	33	1956	12
25 mm (0.98 in): Days with 25 mm or more rain	76	8	1917	2
50 mm (1.97 in): Days with 50 mm or more rain	25	2	1931	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1966	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1900.

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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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Ganmain Post Office Threshold Days by Year (ASN00074044)

Key Facts for Ganmain Post Office Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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