Dumont Threshold Days by Year (USC00132388)

7 fixed thresholds counted per year at Dumont (USC00132388): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dumont Thresholds

Dumont: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1942 with 38.
Dumont: days with 25 mm (0.98 in) or more of precipitation in 70 years, most in 2007 with 16.
Dumont: days with 10 cm (3.9 in) or more of snowfall in 64 years, most in 1951 with 7.
Dumont: days with 50 mm (1.97 in) or more of precipitation in 59 years, most in 1959 with 6.
7 fixed thresholds have at least one qualifying day at Dumont.

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

70 years with a qualifying day

Days per year at Dumont with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1942.

Days with 10 mm (0.39 in) or more of precipitation per year at Dumont
Year	Days	Decade average
1934	21	21.2
1935	20	21.2
1936	18	21.2
1937	23	21.2
1938	30	21.2
1939	15	21.2
1940	30	25.6
1941	21	25.6
1942	38	25.6
1943	25	25.6
1944	23	25.6
1945	25	25.6
1947	30	25.6
1948	22	25.6
1949	16	25.6
1950	25	23.5
1951	37	23.5
1952	19	23.5
1953	22	23.5
1954	27	23.5
1955	14	23.5
1956	19	23.5
1957	27	23.5
1958	19	23.5
1959	26	23.5
1960	29	26
1961	22	26
1962	27	26
1963	20	26
1964	22	26
1965	37	26
1966	20	26
1967	23	26
1968	30	26
1969	30	26
1970	26	25.6
1971	24	25.6
1973	38	25.6
1974	26	25.6
1975	24	25.6
1976	18	25.6
1977	21	25.6
1978	21	25.6
1979	32	25.6
1980	23	26
1981	25	26
1983	37	26
1984	29	26
1985	24	26
1986	35	26
1987	27	26
1988	20	26
1989	14	26
1990	31	27.7
1991	37	27.7
1992	30	27.7
1993	38	27.7
1994	27	27.7
1995	21	27.7
1996	23	27.7
1997	18	27.7
1998	25	27.7
1999	27	27.7
2000	23	28.1
2001	33	28.1
2002	23	28.1
2004	26	28.1
2005	28	28.1
2006	27	28.1
2007	37	28.1

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

First to last qualifying date each year at Dumont
Year	First date	Last date
1934	1934-01-04	1934-11-30
1935	1935-01-12	1935-11-27
1936	1936-01-08	1936-12-30
1937	1937-01-08	1937-12-13
1938	1938-03-30	1938-11-05
1939	1939-01-04	1939-10-09
1940	1940-02-23	1940-12-16
1941	1941-01-01	1941-12-26
1942	1942-01-01	1942-12-21
1943	1943-02-03	1943-11-06
1944	1944-01-27	1944-10-02
1945	1945-03-15	1945-12-24
1947	1947-01-30	1947-12-07
1948	1948-02-27	1948-12-05
1949	1949-01-04	1949-10-21
1950	1950-02-08	1950-10-07
1951	1951-02-26	1951-11-12
1952	1952-01-15	1952-11-26
1953	1953-01-15	1953-11-20
1954	1954-04-06	1954-10-14
1955	1955-02-19	1955-10-06
1956	1956-03-07	1956-11-21
1957	1957-03-18	1957-12-19
1958	1958-04-05	1958-11-18
1959	1959-02-10	1959-12-28
1960	1960-01-15	1960-12-05
1961	1961-02-18	1961-12-12
1962	1962-02-26	1962-10-07
1963	1963-03-06	1963-11-22
1964	1964-04-03	1964-12-11
1965	1965-01-23	1965-12-11
1966	1966-01-02	1966-12-28
1967	1967-01-25	1967-12-07
1968	1968-03-09	1968-12-22
1969	1969-03-24	1969-12-07
1970	1970-03-20	1970-12-11
1971	1971-01-04	1971-12-30
1973	1973-01-04	1973-12-05
1974	1974-02-22	1974-12-07
1975	1975-01-11	1975-12-14
1976	1976-02-21	1976-10-24
1977	1977-03-12	1977-10-24
1978	1978-01-01	1978-11-17
1979	1979-01-19	1979-11-22
1980	1980-01-16	1980-10-24
1981	1981-02-22	1981-12-01
1983	1983-02-02	1983-11-28
1984	1984-01-30	1984-12-14
1985	1985-03-04	1985-12-01
1986	1986-01-03	1986-12-02
1987	1987-03-01	1987-12-28
1988	1988-01-20	1988-11-29
1989	1989-01-06	1989-10-31
1990	1990-03-08	1990-12-15
1991	1991-03-02	1991-12-12
1992	1992-02-18	1992-12-29
1993	1993-03-03	1993-11-13
1994	1994-01-27	1994-12-07
1995	1995-03-07	1995-11-02
1996	1996-01-19	1996-12-15
1997	1997-02-04	1997-11-15
1998	1998-04-16	1998-11-10
1999	1999-03-09	1999-11-23
2000	2000-01-20	2000-12-29
2001	2001-01-14	2001-10-23
2002	2002-02-20	2002-12-18
2004	2004-02-02	2004-11-19
2005	2005-01-06	2005-11-28
2006	2006-03-06	2006-12-31
2007	2007-02-24	2007-12-07

Every Fixed Threshold

Fixed thresholds at Dumont
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	70	38	1942	37
25 mm (0.98 in): Days with 25 mm or more rain	70	16	2007	16
50 mm (1.97 in): Days with 50 mm or more rain	59	6	1959	2
100 mm (3.94 in): Days with 100 mm or more rain	10	2	1990	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1968	1
10 cm (3.9 in): Days with 10 cm or more snowfall	64	7	1951	4
25 cm (9.8 in): Days with 25 cm or more snowfall	9	2	1971	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1934.

Download the Data

Data for Dumont 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).

Dumont Threshold Days by Year (USC00132388)

Key Facts for Dumont Thresholds

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

Every Fixed Threshold

Download the Data

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