Berkshire Valley Threshold Days by Year (ASN00008008)

3 fixed thresholds counted per year at Berkshire Valley (ASN00008008): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Berkshire Valley Thresholds

Berkshire Valley: days with 10 mm (0.39 in) or more of precipitation in 120 years, most in 1915 with 25.
Berkshire Valley: days with 25 mm (0.98 in) or more of precipitation in 102 years, most in 1947 with 7.
Berkshire Valley: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 1945 with 2.
3 fixed thresholds have at least one qualifying day at Berkshire Valley.

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

120 years with a qualifying day

Days per year at Berkshire Valley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 25 in 1915.

Days with 10 mm (0.39 in) or more of precipitation per year at Berkshire Valley
Year	Days	Decade average
1907	17	16
1908	13	16
1909	18	16
1910	20	13.9
1911	5	13.9
1912	8	13.9
1913	19	13.9
1914	7	13.9
1915	25	13.9
1916	12	13.9
1917	20	13.9
1918	17	13.9
1919	6	13.9
1920	15	13.6
1921	19	13.6
1922	7	13.6
1923	17	13.6
1924	11	13.6
1925	9	13.6
1926	23	13.6
1927	14	13.6
1928	6	13.6
1929	15	13.6
1930	15	12.9
1931	15	12.9
1932	22	12.9
1933	10	12.9
1934	14	12.9
1935	9	12.9
1936	7	12.9
1937	9	12.9
1938	8	12.9
1939	20	12.9
1940	10	13.4
1941	12	13.4
1942	14	13.4
1943	13	13.4
1944	10	13.4
1945	18	13.4
1946	20	13.4
1947	14	13.4
1948	10	13.4
1949	13	13.4
1950	9	12.6
1951	12	12.6
1952	14	12.6
1953	11	12.6
1954	7	12.6
1955	16	12.6
1956	17	12.6
1957	13	12.6
1958	17	12.6
1959	10	12.6
1960	13	14.2
1961	12	14.2
1962	10	14.2
1963	18	14.2
1964	17	14.2
1965	22	14.2
1966	14	14.2
1967	12	14.2
1968	16	14.2
1969	8	14.2
1970	11	11.5
1971	9	11.5
1972	13	11.5
1973	12	11.5
1974	15	11.5
1975	16	11.5
1976	9	11.5
1977	9	11.5
1978	14	11.5
1979	7	11.5
1980	10	13.1
1981	12	13.1
1982	14	13.1
1983	15	13.1
1984	13	13.1
1985	11	13.1
1986	17	13.1
1987	12	13.1
1988	13	13.1
1989	14	13.1
1990	13	13
1991	12	13
1992	17	13
1993	11	13
1994	7	13
1995	18	13
1996	13	13
1997	10	13
1998	10	13
1999	19	13
2000	10	11.2
2001	9	11.2
2002	9	11.2
2003	10	11.2
2004	9	11.2
2005	17	11.2
2006	10	11.2
2007	10	11.2
2008	13	11.2
2009	15	11.2
2010	8	10.6
2011	12	10.6
2012	14	10.6
2013	11	10.6
2014	10	10.6
2015	11	10.6
2016	10	10.6
2017	9	10.6
2018	14	10.6
2019	7	10.6
2020	11	12.1
2021	14	12.1
2022	14	12.1
2023	6	12.1
2024	11	12.1
2025	18	12.1
2026	11	12.1

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

First to last qualifying date each year at Berkshire Valley
Year	First date	Last date
1907	1907-01-16	1907-08-19
1908	1908-03-29	1908-11-09
1909	1909-01-06	1909-10-09
1910	1910-02-20	1910-09-02
1911	1911-05-25	1911-07-25
1912	1912-01-20	1912-09-28
1913	1913-05-14	1913-12-20
1914	1914-06-25	1914-12-04
1915	1915-01-15	1915-10-09
1916	1916-01-21	1916-10-05
1917	1917-03-01	1917-10-01
1918	1918-02-18	1918-09-16
1919	1919-02-24	1919-08-03
1920	1920-03-13	1920-09-12
1921	1921-02-17	1921-10-16
1922	1922-04-29	1922-07-11
1923	1923-01-31	1923-12-17
1924	1924-05-14	1924-11-17
1925	1925-03-05	1925-12-31
1926	1926-02-05	1926-11-19
1927	1927-03-14	1927-11-19
1928	1928-06-01	1928-12-06
1929	1929-02-15	1929-08-13
1930	1930-02-26	1930-10-09
1931	1931-05-04	1931-09-05
1932	1932-03-28	1932-10-29
1933	1933-05-22	1933-10-03
1934	1934-01-02	1934-09-11
1935	1935-01-07	1935-08-29
1936	1936-03-03	1936-09-30
1937	1937-05-18	1937-11-12
1938	1938-03-15	1938-11-02
1939	1939-01-20	1939-10-04
1940	1940-05-14	1940-12-03
1941	1941-04-05	1941-09-19
1942	1942-01-17	1942-12-16
1943	1943-01-31	1943-08-23
1944	1944-03-14	1944-08-23
1945	1945-02-12	1945-11-12
1946	1946-04-19	1946-11-13
1947	1947-03-06	1947-10-25
1948	1948-04-30	1948-11-25
1949	1949-06-04	1949-11-14
1950	1950-05-10	1950-10-10
1951	1951-01-18	1951-12-04
1952	1952-01-22	1952-12-18
1953	1953-03-24	1953-11-16
1954	1954-05-23	1954-08-20
1955	1955-01-12	1955-10-28
1956	1956-03-04	1956-10-13
1957	1957-04-22	1957-09-05
1958	1958-01-24	1958-09-22
1959	1959-04-17	1959-10-07
1960	1960-01-01	1960-09-12
1961	1961-01-26	1961-08-31
1962	1962-05-25	1962-12-21
1963	1963-01-27	1963-08-26
1964	1964-02-24	1964-10-09
1965	1965-02-05	1965-12-27
1966	1966-01-22	1966-10-23
1967	1967-04-22	1967-07-27
1968	1968-01-27	1968-09-10
1969	1969-04-24	1969-09-12
1970	1970-02-16	1970-12-29
1971	1971-01-31	1971-10-05
1972	1972-05-31	1972-10-08
1973	1973-05-13	1973-11-05
1974	1974-03-31	1974-08-04
1975	1975-03-21	1975-10-15
1976	1976-02-28	1976-08-29
1977	1977-02-21	1977-12-26
1978	1978-01-02	1978-12-16
1979	1979-03-15	1979-11-06
1980	1980-04-21	1980-10-22
1981	1981-02-18	1981-12-08
1982	1982-01-03	1982-09-21
1983	1983-05-03	1983-12-28
1984	1984-03-04	1984-11-08
1985	1985-02-01	1985-09-22
1986	1986-01-09	1986-10-05
1987	1987-04-26	1987-11-30
1988	1988-03-24	1988-12-28
1989	1989-02-25	1989-11-09
1990	1990-01-28	1990-10-13
1991	1991-01-17	1991-12-25
1992	1992-02-07	1992-09-20
1993	1993-05-02	1993-11-14
1994	1994-05-23	1994-09-11
1995	1995-02-23	1995-12-25
1996	1996-02-08	1996-11-06
1997	1997-03-30	1997-11-12
1998	1998-04-16	1998-08-29
1999	1999-03-19	1999-12-30
2000	2000-01-07	2000-09-06
2001	2001-05-06	2001-09-29
2002	2002-01-30	2002-12-23
2003	2003-03-30	2003-09-22
2004	2004-05-08	2004-08-12
2005	2005-02-15	2005-09-06
2006	2006-01-07	2006-10-25
2007	2007-05-28	2007-12-17
2008	2008-02-02	2008-09-26
2009	2009-01-28	2009-12-20
2010	2010-03-22	2010-09-01
2011	2011-03-01	2011-12-12
2012	2012-01-19	2012-11-25
2013	2013-01-14	2013-10-09
2014	2014-04-27	2014-09-22
2015	2015-02-02	2015-11-07
2016	2016-01-20	2016-08-27
2017	2017-01-29	2017-09-25
2018	2018-01-15	2018-12-04
2019	2019-06-07	2019-08-30
2020	2020-02-22	2020-08-16
2021	2021-02-06	2021-11-09
2022	2022-03-30	2022-09-06
2023	2023-03-31	2023-09-14
2024	2024-01-14	2024-08-24
2025	2025-03-14	2025-12-15
2026	2026-02-10	2026-08-11

Every Fixed Threshold

Fixed thresholds at Berkshire Valley
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	120	25	1915	11
25 mm (0.98 in): Days with 25 mm or more rain	102	7	1947	2
50 mm (1.97 in): Days with 50 mm or more rain	24	2	1945	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

Data for Berkshire Valley 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Berkshire Valley Threshold Days by Year (ASN00008008)

Key Facts for Berkshire Valley Thresholds

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

Every Fixed Threshold

Download the Data

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