Green Mountains Threshold Days by Year

5 fixed thresholds counted per year at Green Mountains (ASN00040182): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Green Mountains Thresholds

Green Mountains: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 1972 with 65.
Green Mountains: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1967 with 32.
Green Mountains: days with 50 mm (1.97 in) or more of precipitation in 79 years, most in 1974 with 18.
Green Mountains: days with 100 mm (3.94 in) or more of precipitation in 59 years, most in 1974 with 9.
5 fixed thresholds have at least one qualifying day at Green Mountains.

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

81 years with a qualifying day

Days per year at Green Mountains with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 65 in 1972.

Days with 10 mm (0.39 in) or more of precipitation per year at Green Mountains
Year	Days	Decade average
1917	39	38.5
1918	38	38.5
1921	57	43.2
1922	33	43.2
1923	37	43.2
1924	37	43.2
1925	56	43.2
1926	43	43.2
1927	46	43.2
1928	40	43.2
1929	40	43.2
1933	45	41
1934	40	41
1935	44	41
1936	35	41
1937	37	41
1938	45	41
1939	41	41
1940	32	38.6
1941	28	38.6
1942	45	38.6
1943	49	38.6
1944	30	38.6
1945	40	38.6
1947	42	38.6
1948	36	38.6
1949	45	38.6
1955	43	39.4
1956	41	39.4
1957	30	39.4
1958	37	39.4
1959	46	39.4
1964	47	42
1965	35	42
1966	32	42
1967	62	42
1968	40	42
1969	36	42
1970	47	48.7
1971	56	48.7
1972	65	48.7
1973	60	48.7
1974	49	48.7
1975	36	48.7
1976	51	48.7
1977	36	48.7
1978	49	48.7
1979	38	48.7
1980	40	46.8
1981	51	46.8
1982	32	46.8
1983	59	46.8
1984	28	46.8
1985	56	46.8
1986	27	46.8
1987	55	46.8
1988	59	46.8
1989	61	46.8
1990	37	41.5
1991	29	41.5
1992	48	41.5
1993	34	41.5
1994	37	41.5
1995	42	41.5
1996	42	41.5
1997	51	41.5
1998	35	41.5
1999	60	41.5
2000	44	34.3
2001	35	34.3
2002	18	34.3
2003	42	34.3
2004	30	34.3
2006	37	34.3
2013	52	39.1
2014	27	39.1
2015	48	39.1
2016	37	39.1
2017	51	39.1
2018	37	39.1
2019	22	39.1

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

First to last qualifying date each year at Green Mountains
Year	First date	Last date
1917	1917-01-06	1917-12-17
1918	1918-01-02	1918-12-18
1921	1921-01-10	1921-12-31
1922	1922-01-01	1922-12-27
1923	1923-01-03	1923-12-27
1924	1924-01-24	1924-12-27
1925	1925-01-01	1925-12-31
1926	1926-01-01	1926-12-30
1927	1927-01-04	1927-12-26
1928	1928-02-07	1928-12-20
1929	1929-01-11	1929-12-30
1933	1933-01-15	1933-12-29
1934	1934-01-02	1934-12-23
1935	1935-01-04	1935-12-27
1936	1936-01-10	1936-12-29
1937	1937-01-03	1937-12-16
1938	1938-01-15	1938-11-30
1939	1939-01-18	1939-12-28
1940	1940-01-06	1940-12-22
1941	1941-01-06	1941-12-30
1942	1942-01-14	1942-12-31
1943	1943-01-01	1943-12-31
1944	1944-01-02	1944-12-22
1945	1945-01-03	1945-12-05
1947	1947-01-23	1947-12-26
1948	1948-01-02	1948-12-11
1949	1949-01-10	1949-12-16
1955	1955-01-12	1955-12-26
1956	1956-01-12	1956-12-22
1957	1957-01-09	1957-12-17
1958	1958-01-12	1958-12-28
1959	1959-01-20	1959-12-22
1964	1964-01-02	1964-12-25
1965	1965-01-09	1965-12-16
1966	1966-02-01	1966-12-30
1967	1967-01-01	1967-12-23
1968	1968-01-05	1968-12-31
1969	1969-01-01	1969-12-24
1970	1970-01-02	1970-12-27
1971	1971-01-01	1971-12-28
1972	1972-01-01	1972-12-28
1973	1973-01-01	1973-12-23
1974	1974-01-01	1974-12-30
1975	1975-01-04	1975-12-27
1976	1976-01-10	1976-12-25
1977	1977-02-03	1977-12-05
1978	1978-01-20	1978-12-30
1979	1979-01-19	1979-12-27
1980	1980-01-08	1980-12-31
1981	1981-01-01	1981-12-26
1982	1982-01-16	1982-12-23
1983	1983-01-02	1983-12-30
1984	1984-01-04	1984-12-30
1985	1985-01-06	1985-12-27
1986	1986-01-10	1986-12-26
1987	1987-01-02	1987-12-24
1988	1988-01-01	1988-12-20
1989	1989-01-07	1989-12-17
1990	1990-01-13	1990-12-24
1991	1991-01-02	1991-12-31
1992	1992-01-01	1992-12-27
1993	1993-01-06	1993-12-08
1994	1994-01-11	1994-12-26
1995	1995-01-04	1995-12-29
1996	1996-01-03	1996-12-19
1997	1997-01-25	1997-12-29
1998	1998-02-01	1998-12-25
1999	1999-01-02	1999-12-28
2000	2000-01-08	2000-12-29
2001	2001-01-18	2001-12-16
2002	2002-01-17	2002-12-26
2003	2003-02-02	2003-12-17
2004	2004-01-05	2004-12-28
2006	2006-01-06	2006-12-16
2013	2013-01-22	2013-12-30
2014	2014-01-03	2014-12-29
2015	2015-01-04	2015-12-26
2016	2016-01-26	2016-12-18
2017	2017-01-03	2017-12-31
2018	2018-01-03	2018-12-22
2019	2019-02-07	2019-12-25

Every Fixed Threshold

Fixed thresholds at Green Mountains
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	81	65	1972	22
25 mm (0.98 in): Days with 25 mm or more rain	81	32	1967	6
50 mm (1.97 in): Days with 50 mm or more rain	79	18	1974	1
100 mm (3.94 in): Days with 100 mm or more rain	59	9	1974	3
200 mm (7.87 in): Days with 200 mm or more rain	22	4	1974	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

Data for Green Mountains 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).

Green Mountains Threshold Days by Year

Key Facts for Green Mountains Thresholds

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

Every Fixed Threshold

Download the Data

Related