Herkimer Threshold Days by Year (USC00141003)

6 fixed thresholds counted per year at Herkimer (USC00141003): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Herkimer Thresholds

Herkimer: days with 10 mm (0.39 in) or more of precipitation in 76 years, most in 1951 with 42.
Herkimer: days with 25 mm (0.98 in) or more of precipitation in 76 years, most in 2001 with 17.
Herkimer: days with 50 mm (1.97 in) or more of precipitation in 63 years, most in 1978 with 5.
Herkimer: days with 10 cm (3.9 in) or more of snowfall in 45 years, most in 1983 with 7.
6 fixed thresholds have at least one qualifying day at Herkimer.

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

76 years with a qualifying day

Days per year at Herkimer with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1951.

Days with 10 mm (0.39 in) or more of precipitation per year at Herkimer
Year	Days	Decade average
1945	28	25
1946	25	25
1947	20	25
1949	27	25
1950	25	26.1
1951	42	26.1
1952	22	26.1
1953	22	26.1
1954	24	26.1
1955	22	26.1
1956	18	26.1
1957	26	26.1
1958	29	26.1
1959	31	26.1
1960	29	24.5
1961	31	24.5
1962	25	24.5
1963	20	24.5
1964	22	24.5
1966	16	24.5
1967	29	24.5
1968	24	24.5
1971	22	24.2
1972	24	24.2
1973	35	24.2
1974	16	24.2
1975	24	24.2
1976	21	24.2
1977	26	24.2
1978	24	24.2
1979	26	24.2
1980	15	24.9
1981	30	24.9
1982	26	24.9
1983	26	24.9
1984	29	24.9
1985	31	24.9
1986	30	24.9
1987	28	24.9
1988	14	24.9
1989	20	24.9
1990	30	28.3
1991	19	28.3
1992	28	28.3
1993	40	28.3
1994	18	28.3
1995	33	28.3
1998	32	28.3
1999	26	28.3
2000	16	24.8
2001	32	24.8
2002	25	24.8
2003	23	24.8
2004	23	24.8
2005	29	24.8
2006	23	24.8
2007	28	24.8
2008	20	24.8
2009	29	24.8
2010	27	27.3
2011	23	27.3
2012	17	27.3
2013	27	27.3
2014	23	27.3
2015	35	27.3
2016	29	27.3
2017	24	27.3
2018	28	27.3
2019	40	27.3
2020	24	22.7
2021	20	22.7
2022	21	22.7
2023	19	22.7
2024	22	22.7
2025	25	22.7
2026	28	22.7

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

First to last qualifying date each year at Herkimer
Year	First date	Last date
1945	1945-02-21	1945-12-01
1946	1946-03-05	1946-11-09
1947	1947-03-05	1947-12-04
1949	1949-01-03	1949-12-21
1950	1950-04-03	1950-10-07
1951	1951-02-25	1951-10-18
1952	1952-03-07	1952-12-22
1953	1953-03-01	1953-12-03
1954	1954-02-19	1954-10-26
1955	1955-01-05	1955-10-06
1956	1956-02-01	1956-11-20
1957	1957-03-18	1957-11-18
1958	1958-01-20	1958-11-17
1959	1959-02-09	1959-12-27
1960	1960-01-12	1960-11-27
1961	1961-02-17	1961-12-11
1962	1962-01-26	1962-11-16
1963	1963-03-04	1963-10-27
1964	1964-03-19	1964-12-10
1966	1966-01-02	1966-10-19
1967	1967-03-26	1967-10-15
1968	1968-04-03	1968-12-22
1971	1971-01-03	1971-11-29
1972	1972-03-21	1972-12-30
1973	1973-02-01	1973-12-24
1974	1974-04-11	1974-11-10
1975	1975-02-04	1975-12-14
1976	1976-02-21	1976-10-04
1977	1977-03-03	1977-11-09
1978	1978-02-13	1978-11-26
1979	1979-01-13	1979-11-21
1980	1980-01-19	1980-12-08
1981	1981-03-04	1981-12-01
1982	1982-03-15	1982-12-28
1983	1983-01-31	1983-11-28
1984	1984-03-04	1984-12-16
1985	1985-02-23	1985-10-27
1986	1986-02-04	1986-12-07
1987	1987-03-01	1987-11-28
1988	1988-04-02	1988-11-16
1989	1989-05-04	1989-10-29
1990	1990-01-04	1990-11-04
1991	1991-03-02	1991-12-23
1992	1992-01-05	1992-12-09
1993	1993-01-09	1993-12-13
1994	1994-01-27	1994-12-06
1995	1995-01-27	1995-11-01
1998	1998-01-04	1998-11-10
1999	1999-01-02	1999-11-22
2000	2000-02-23	2000-11-06
2001	2001-01-28	2001-11-24
2002	2002-01-31	2002-10-30
2003	2003-01-16	2003-12-10
2004	2004-01-26	2004-09-22
2005	2005-01-05	2005-11-15
2006	2006-03-19	2006-12-31
2007	2007-01-01	2007-12-11
2008	2008-03-03	2008-11-11
2009	2009-03-08	2009-12-25
2010	2010-02-05	2010-11-13
2011	2011-01-10	2011-12-14
2012	2012-02-03	2012-12-15
2013	2013-02-22	2013-12-22
2014	2014-02-05	2014-12-15
2015	2015-02-01	2015-12-14
2016	2016-02-02	2016-11-23
2017	2017-01-16	2017-10-11
2018	2018-01-12	2018-12-27
2019	2019-01-12	2019-12-29
2020	2020-03-09	2020-12-30
2021	2021-01-26	2021-10-28
2022	2022-03-18	2022-12-13
2023	2023-01-19	2023-12-25
2024	2024-01-09	2024-11-19
2025	2025-01-31	2025-11-21
2026	2026-01-09	2026-10-01

Every Fixed Threshold

Fixed thresholds at Herkimer
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	76	42	1951	28
25 mm (0.98 in): Days with 25 mm or more rain	76	17	2001	11
50 mm (1.97 in): Days with 50 mm or more rain	63	5	1978	2
100 mm (3.94 in): Days with 100 mm or more rain	8	2	1973	1
10 cm (3.9 in): Days with 10 cm or more snowfall	45	7	1983	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1978	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

Data for Herkimer 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Herkimer Threshold Days by Year (USC00141003)

Key Facts for Herkimer Thresholds

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

Every Fixed Threshold

Download the Data

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