Man Threshold Days by Year

7 fixed thresholds counted per year at Man (USC00465600): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Man Thresholds

Man: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 2020 with 65.
Man: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 2018 with 18.
Man: days with 50 mm (1.97 in) or more of precipitation in 42 years, most in 1982 with 5.
Man: days with 10 cm (3.9 in) or more of snowfall in 23 years, most in 2010 with 8.
7 fixed thresholds have at least one qualifying day at Man.

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

55 years with a qualifying day

Days per year at Man with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 65 in 2020.

Days with 10 mm (0.39 in) or more of precipitation per year at Man
Year	Days	Decade average
1942	41	36.5
1943	37	36.5
1946	29	36.5
1949	39	36.5
1950	31	39.1
1951	51	39.1
1952	43	39.1
1953	33	39.1
1954	29	39.1
1955	39	39.1
1956	48	39.1
1980	39	39.2
1981	38	39.2
1982	44	39.2
1983	32	39.2
1984	47	39.2
1985	42	39.2
1986	37	39.2
1987	37	39.2
1988	36	39.2
1989	40	39.2
1990	22	40.6
1992	39	40.6
1993	44	40.6
1994	51	40.6
1995	45	40.6
1996	53	40.6
1997	34	40.6
1998	45	40.6
1999	32	40.6
2000	40	43.7
2001	29	43.7
2002	54	43.7
2003	55	43.7
2004	49	43.7
2005	39	43.7
2006	47	43.7
2007	34	43.7
2008	40	43.7
2009	50	43.7
2010	36	47.3
2011	52	47.3
2012	46	47.3
2013	49	47.3
2014	42	47.3
2015	49	47.3
2016	43	47.3
2017	44	47.3
2018	59	47.3
2019	53	47.3
2020	65	35.4
2021	38	35.4
2022	38	35.4
2023	30	35.4
2025	6	35.4

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

First to last qualifying date each year at Man
Year	First date	Last date
1942	1942-01-01	1942-12-30
1943	1943-01-26	1943-12-29
1946	1946-01-07	1946-12-31
1949	1949-01-21	1949-12-26
1950	1950-01-26	1950-12-07
1951	1951-01-15	1951-12-21
1952	1952-01-03	1952-12-31
1953	1953-01-03	1953-09-20
1954	1954-02-03	1954-12-29
1955	1955-01-04	1955-12-30
1956	1956-01-29	1956-12-24
1980	1980-01-23	1980-12-30
1981	1981-02-02	1981-12-22
1982	1982-01-01	1982-12-20
1983	1983-01-22	1983-12-12
1984	1984-01-11	1984-12-25
1985	1985-01-02	1985-12-13
1986	1986-01-20	1986-12-25
1987	1987-01-19	1987-12-29
1988	1988-01-01	1988-12-25
1989	1989-01-12	1989-11-16
1990	1990-03-16	1990-12-31
1992	1992-01-08	1992-12-22
1993	1993-01-24	1993-12-19
1994	1994-01-04	1994-12-27
1995	1995-01-07	1995-12-20
1996	1996-01-03	1996-12-05
1997	1997-01-09	1997-12-24
1998	1998-01-08	1998-12-22
1999	1999-01-03	1999-12-14
2000	2000-01-10	2000-12-17
2001	2001-01-19	2001-12-18
2002	2002-01-07	2002-12-25
2003	2003-01-03	2003-12-24
2004	2004-01-02	2004-12-24
2005	2005-01-05	2005-12-29
2006	2006-01-03	2006-12-23
2007	2007-01-05	2007-12-29
2008	2008-01-11	2008-12-27
2009	2009-01-07	2009-12-19
2010	2010-01-18	2010-12-25
2011	2011-01-28	2011-12-28
2012	2012-01-18	2012-12-21
2013	2013-01-15	2013-12-29
2014	2014-01-07	2014-12-29
2015	2015-01-04	2015-12-26
2016	2016-01-23	2016-12-29
2017	2017-01-04	2017-12-24
2018	2018-01-12	2018-12-28
2019	2019-01-01	2019-12-17
2020	2020-01-04	2020-12-25
2021	2021-01-26	2021-12-19
2022	2022-01-01	2022-12-07
2023	2023-01-04	2023-12-10
2025	2025-01-06	2025-03-17

Every Fixed Threshold

Fixed thresholds at Man
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	55	65	2020	6
25 mm (0.98 in): Days with 25 mm or more rain	55	18	2018	2
50 mm (1.97 in): Days with 50 mm or more rain	42	5	1982	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1993	1
10 cm (3.9 in): Days with 10 cm or more snowfall	23	8	2010	2
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1985	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1993	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

Data for Man 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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

Man Threshold Days by Year

Key Facts for Man Thresholds

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

Every Fixed Threshold

Download the Data

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