Jamestown Threshold Days by Year (ASN00021027)

3 fixed thresholds counted per year at Jamestown (ASN00021027): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Jamestown Thresholds

Jamestown: days with 10 mm (0.39 in) or more of precipitation in 111 years, most in 1992 with 28.
Jamestown: days with 25 mm (0.98 in) or more of precipitation in 91 years, most in 1993 with 6.
Jamestown: days with 50 mm (1.97 in) or more of precipitation in 13 years, most in 1886 with 1.
3 fixed thresholds have at least one qualifying day at Jamestown.

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

111 years with a qualifying day

Days per year at Jamestown with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 1992.

Days with 10 mm (0.39 in) or more of precipitation per year at Jamestown
Year	Days	Decade average
1884	15	13.7
1885	8	13.7
1886	11	13.7
1887	17	13.7
1888	7	13.7
1889	24	13.7
1890	24	13.2
1891	10	13.2
1892	14	13.2
1893	19	13.2
1894	17	13.2
1895	12	13.2
1896	9	13.2
1897	8	13.2
1898	10	13.2
1899	9	13.2
1900	8	11.9
1901	7	11.9
1902	9	11.9
1903	13	11.9
1904	9	11.9
1905	13	11.9
1906	14	11.9
1907	16	11.9
1908	17	11.9
1909	13	11.9
1910	18	14.1
1911	13	14.1
1912	14	14.1
1913	11	14.1
1914	6	14.1
1915	15	14.1
1916	19	14.1
1917	18	14.1
1918	13	14.1
1919	14	14.1
1920	22	14.6
1922	14	14.6
1923	20	14.6
1924	18	14.6
1925	11	14.6
1926	15	14.6
1927	8	14.6
1928	14	14.6
1929	9	14.6
1930	9	10.9
1931	10	10.9
1932	11	10.9
1933	8	10.9
1934	15	10.9
1935	9	10.9
1936	9	10.9
1937	13	10.9
1938	12	10.9
1939	13	10.9
1940	4	12.6
1941	12	12.6
1942	18	12.6
1943	12	12.6
1944	11	12.6
1945	11	12.6
1946	15	12.6
1947	19	12.6
1948	10	12.6
1949	14	12.6
1950	9	13.3
1951	17	13.3
1952	15	13.3
1953	14	13.3
1954	14	13.3
1955	14	13.3
1956	19	13.3
1957	11	13.3
1958	14	13.3
1959	6	13.3
1960	18	10.7
1961	8	10.7
1962	11	10.7
1963	10	10.7
1964	10	10.7
1965	10	10.7
1966	12	10.7
1967	3	10.7
1968	16	10.7
1969	9	10.7
1970	10	15
1971	17	15
1972	16	15
1973	18	15
1974	22	15
1976	7	15
1991	16	13.4
1992	28	13.4
1993	13	13.4
1994	6	13.4
1995	18	13.4
1997	14	13.4
1998	8	13.4
1999	4	13.4
2000	14	7.9
2001	10	7.9
2002	5	7.9
2003	7	7.9
2004	9	7.9
2005	7	7.9
2006	5	7.9
2007	9	7.9
2008	5	7.9
2021	12	9
2024	8	9
2025	7	9

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

First to last qualifying date each year at Jamestown
Year	First date	Last date
1884	1884-01-21	1884-12-15
1885	1885-02-28	1885-12-22
1886	1886-04-24	1886-12-06
1887	1887-02-09	1887-12-15
1888	1888-03-26	1888-09-24
1889	1889-01-01	1889-11-15
1890	1890-01-10	1890-12-08
1891	1891-01-05	1891-10-30
1892	1892-01-23	1892-12-12
1893	1893-04-03	1893-12-26
1894	1894-04-19	1894-12-27
1895	1895-01-04	1895-12-17
1896	1896-01-20	1896-12-28
1897	1897-01-09	1897-09-29
1898	1898-02-09	1898-10-29
1899	1899-02-27	1899-09-11
1900	1900-04-23	1900-12-03
1901	1901-04-03	1901-10-28
1902	1902-03-26	1902-12-19
1903	1903-02-16	1903-12-11
1904	1904-01-04	1904-10-20
1905	1905-01-03	1905-10-28
1906	1906-03-01	1906-12-10
1907	1907-01-11	1907-12-27
1908	1908-01-31	1908-10-16
1909	1909-05-17	1909-11-19
1910	1910-03-05	1910-12-01
1911	1911-02-07	1911-12-12
1912	1912-03-09	1912-12-06
1913	1913-03-05	1913-12-23
1914	1914-07-29	1914-12-23
1915	1915-01-20	1915-12-29
1916	1916-05-14	1916-12-09
1917	1917-01-22	1917-12-12
1918	1918-01-29	1918-10-04
1919	1919-02-16	1919-12-27
1920	1920-03-07	1920-12-27
1922	1922-01-05	1922-12-09
1923	1923-01-06	1923-12-27
1924	1924-01-03	1924-12-15
1925	1925-01-13	1925-09-28
1926	1926-04-26	1926-12-01
1927	1927-03-22	1927-12-02
1928	1928-01-19	1928-10-15
1929	1929-05-06	1929-12-27
1930	1930-02-04	1930-10-24
1931	1931-03-13	1931-12-03
1932	1932-02-05	1932-09-19
1933	1933-07-29	1933-11-30
1934	1934-01-06	1934-12-09
1935	1935-01-05	1935-10-21
1936	1936-01-01	1936-12-03
1937	1937-01-09	1937-12-11
1938	1938-02-20	1938-10-24
1939	1939-02-17	1939-11-05
1940	1940-01-05	1940-07-10
1941	1941-01-24	1941-11-19
1942	1942-01-20	1942-12-25
1943	1943-01-22	1943-12-17
1944	1944-02-06	1944-12-21
1945	1945-05-07	1945-12-27
1946	1946-01-17	1946-12-25
1947	1947-02-10	1947-12-03
1948	1948-04-12	1948-12-25
1949	1949-02-28	1949-11-21
1950	1950-02-02	1950-12-20
1951	1951-04-21	1951-12-10
1952	1952-01-05	1952-11-27
1953	1953-02-05	1953-12-07
1954	1954-01-28	1954-12-13
1955	1955-02-15	1955-11-26
1956	1956-01-20	1956-10-17
1957	1957-06-21	1957-12-30
1958	1958-03-07	1958-11-29
1959	1959-01-27	1959-10-08
1960	1960-02-15	1960-11-12
1961	1961-04-14	1961-11-22
1962	1962-01-27	1962-12-26
1963	1963-01-14	1963-11-07
1964	1964-04-08	1964-12-23
1965	1965-05-08	1965-12-06
1966	1966-02-15	1966-12-02
1967	1967-01-24	1967-09-05
1968	1968-01-21	1968-11-06
1969	1969-04-19	1969-09-13
1970	1970-04-09	1970-12-11
1971	1971-02-22	1971-12-10
1972	1972-01-11	1972-12-26
1973	1973-01-27	1973-12-31
1974	1974-01-17	1974-10-24
1976	1976-06-02	1976-11-03
1991	1991-01-23	1991-11-06
1992	1992-03-01	1992-12-21
1993	1993-01-24	1993-12-22
1994	1994-02-27	1994-09-04
1995	1995-01-14	1995-11-06
1997	1997-01-15	1997-12-18
1998	1998-02-09	1998-11-11
1999	1999-07-09	1999-12-03
2000	2000-03-23	2000-12-22
2001	2001-04-08	2001-11-06
2002	2002-03-26	2002-10-23
2003	2003-02-19	2003-12-20
2004	2004-01-07	2004-12-10
2005	2005-06-21	2005-12-02
2006	2006-02-24	2006-12-22
2007	2007-01-19	2007-12-22
2008	2008-05-01	2008-12-12
2021	2021-01-27	2021-11-24
2024	2024-01-08	2024-11-25
2025	2025-06-09	2025-10-22

Every Fixed Threshold

Fixed thresholds at Jamestown
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	111	28	1992	7
25 mm (0.98 in): Days with 25 mm or more rain	91	6	1993	2
50 mm (1.97 in): Days with 50 mm or more rain	13	1	1886	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1884.

Download the Data

Data for Jamestown 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).

Jamestown Threshold Days by Year (ASN00021027)

Key Facts for Jamestown Thresholds

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

Every Fixed Threshold

Download the Data

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