Truro Threshold Days by Year (ASN00024573)

4 fixed thresholds counted per year at Truro (ASN00024573): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Truro Thresholds

Truro: days with 10 mm (0.39 in) or more of precipitation in 138 years, most in 1992 with 34.
Truro: days with 25 mm (0.98 in) or more of precipitation in 105 years, most in 1974 with 10.
Truro: days with 50 mm (1.97 in) or more of precipitation in 20 years, most in 1889 with 2.
Truro: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1889 with 1.
4 fixed thresholds have at least one qualifying day at Truro.

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

138 years with a qualifying day

Days per year at Truro with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1992.

Days with 10 mm (0.39 in) or more of precipitation per year at Truro
Year	Days	Decade average
1884	16	17.3
1885	15	17.3
1886	19	17.3
1887	18	17.3
1888	14	17.3
1889	22	17.3
1890	25	9.7
1891	5	9.7
1892	13	9.7
1893	12	9.7
1894	9	9.7
1895	5	9.7
1896	3	9.7
1897	7	9.7
1898	14	9.7
1899	4	9.7
1900	9	11
1901	7	11
1902	5	11
1903	8	11
1904	9	11
1905	9	11
1906	15	11
1907	11	11
1908	17	11
1909	20	11
1910	17	15.1
1911	9	15.1
1912	18	15.1
1913	17	15.1
1914	6	15.1
1915	20	15.1
1916	17	15.1
1917	28	15.1
1918	10	15.1
1919	9	15.1
1920	17	13.5
1921	12	13.5
1922	15	13.5
1923	27	13.5
1924	13	13.5
1925	7	13.5
1926	14	13.5
1927	12	13.5
1928	10	13.5
1929	8	13.5
1930	14	11.6
1931	11	11.6
1932	11	11.6
1933	11	11.6
1934	9	11.6
1935	14	11.6
1936	11	11.6
1937	15	11.6
1938	8	11.6
1939	12	11.6
1940	8	12.8
1941	13	12.8
1942	21	12.8
1943	12	12.8
1944	10	12.8
1945	13	12.8
1946	16	12.8
1947	18	12.8
1948	8	12.8
1949	9	12.8
1950	14	9.5
1951	16	9.5
1952	9	9.5
1953	10	9.5
1954	7	9.5
1955	15	9.5
1956	6	9.5
1957	3	9.5
1958	13	9.5
1959	2	9.5
1960	15	10.7
1961	8	10.7
1962	15	10.7
1963	10	10.7
1964	11	10.7
1965	4	10.7
1966	8	10.7
1968	16	10.7
1969	9	10.7
1970	9	13.9
1971	16	13.9
1972	9	13.9
1973	17	13.9
1974	23	13.9
1975	17	13.9
1976	5	13.9
1979	15	13.9
1980	11	12.7
1981	8	12.7
1983	17	12.7
1984	7	12.7
1985	9	12.7
1986	18	12.7
1987	14	12.7
1988	18	12.7
1989	12	12.7
1990	14	16.3
1991	20	16.3
1992	34	16.3
1993	12	16.3
1994	11	16.3
1995	15	16.3
1996	18	16.3
1997	11	16.3
1998	14	16.3
1999	14	16.3
2000	20	13.4
2001	20	13.4
2002	5	13.4
2003	12	13.4
2004	17	13.4
2005	19	13.4
2006	6	13.4
2007	13	13.4
2008	9	13.4
2010	18	12.6
2011	18	12.6
2012	8	12.6
2013	9	12.6
2014	11	12.6
2015	14	12.6
2016	21	12.6
2017	13	12.6
2018	8	12.6
2019	6	12.6
2020	13	11.1
2021	11	11.1
2022	20	11.1
2023	8	11.1
2024	5	11.1
2025	11	11.1
2026	10	11.1

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

First to last qualifying date each year at Truro
Year	First date	Last date
1884	1884-01-21	1884-12-15
1885	1885-02-28	1885-12-23
1886	1886-01-06	1886-12-06
1887	1887-02-03	1887-11-29
1888	1888-04-10	1888-09-24
1889	1889-01-02	1889-11-15
1890	1890-01-20	1890-11-25
1891	1891-03-30	1891-12-13
1892	1892-01-23	1892-10-26
1893	1893-04-01	1893-10-14
1894	1894-03-24	1894-12-27
1895	1895-01-04	1895-12-02
1896	1896-01-24	1896-04-22
1897	1897-05-25	1897-09-29
1898	1898-02-26	1898-11-02
1899	1899-01-20	1899-06-21
1900	1900-03-15	1900-11-17
1901	1901-04-03	1901-10-12
1902	1902-03-26	1902-12-17
1903	1903-04-22	1903-11-27
1904	1904-03-16	1904-11-02
1905	1905-01-03	1905-10-28
1906	1906-03-24	1906-12-17
1907	1907-04-06	1907-11-03
1908	1908-01-31	1908-10-17
1909	1909-05-06	1909-12-22
1910	1910-03-05	1910-12-23
1911	1911-02-01	1911-12-05
1912	1912-03-09	1912-12-06
1913	1913-02-14	1913-12-23
1914	1914-01-25	1914-11-25
1915	1915-04-10	1915-12-05
1916	1916-03-07	1916-11-25
1917	1917-01-22	1917-12-12
1918	1918-03-05	1918-10-04
1919	1919-02-16	1919-12-24
1920	1920-03-07	1920-12-27
1921	1921-01-02	1921-11-05
1922	1922-01-07	1922-12-09
1923	1923-05-08	1923-12-18
1924	1924-03-05	1924-12-14
1925	1925-02-07	1925-09-17
1926	1926-04-25	1926-10-12
1927	1927-01-05	1927-12-02
1928	1928-02-01	1928-10-06
1929	1929-05-07	1929-12-28
1930	1930-02-21	1930-10-24
1931	1931-03-13	1931-09-30
1932	1932-02-05	1932-12-15
1933	1933-01-22	1933-12-14
1934	1934-01-06	1934-11-08
1935	1935-03-14	1935-10-21
1936	1936-01-07	1936-12-17
1937	1937-01-19	1937-12-11
1938	1938-01-14	1938-08-28
1939	1939-02-25	1939-11-20
1940	1940-01-05	1940-10-16
1941	1941-01-24	1941-12-27
1942	1942-01-20	1942-11-05
1943	1943-02-17	1943-12-17
1944	1944-04-02	1944-12-21
1945	1945-01-31	1945-12-17
1946	1946-01-17	1946-12-26
1947	1947-02-06	1947-12-21
1948	1948-02-29	1948-11-05
1949	1949-05-18	1949-11-01
1950	1950-02-02	1950-09-01
1951	1951-02-21	1951-10-25
1952	1952-01-25	1952-11-27
1953	1953-01-31	1953-10-21
1954	1954-01-28	1954-12-24
1955	1955-02-08	1955-12-03
1956	1956-05-16	1956-10-18
1957	1957-06-21	1957-10-23
1958	1958-03-27	1958-10-11
1959	1959-08-12	1959-10-28
1960	1960-02-02	1960-11-12
1961	1961-02-08	1961-11-17
1962	1962-01-09	1962-12-29
1963	1963-04-26	1963-09-12
1964	1964-01-09	1964-12-22
1965	1965-05-08	1965-09-05
1966	1966-03-16	1966-12-02
1968	1968-01-20	1968-12-03
1969	1969-02-22	1969-12-01
1970	1970-06-16	1970-12-05
1971	1971-03-15	1971-11-25
1972	1972-01-07	1972-12-27
1973	1973-02-05	1973-11-28
1974	1974-01-14	1974-10-16
1975	1975-03-20	1975-10-31
1976	1976-01-12	1976-10-07
1979	1979-01-17	1979-12-31
1980	1980-04-18	1980-11-06
1981	1981-03-02	1981-11-10
1983	1983-03-03	1983-11-26
1984	1984-04-06	1984-08-25
1985	1985-03-16	1985-10-23
1986	1986-04-17	1986-12-07
1987	1987-01-25	1987-12-01
1988	1988-02-06	1988-12-21
1989	1989-03-14	1989-12-02
1990	1990-01-10	1990-12-10
1991	1991-01-23	1991-11-06
1992	1992-03-01	1992-12-25
1993	1993-01-26	1993-12-22
1994	1994-06-05	1994-11-07
1995	1995-01-14	1995-11-05
1996	1996-01-01	1996-10-01
1997	1997-02-07	1997-12-18
1998	1998-02-07	1998-11-12
1999	1999-02-03	1999-12-26
2000	2000-02-20	2000-11-09
2001	2001-01-25	2001-11-23
2002	2002-01-22	2002-08-03
2003	2003-02-20	2003-12-20
2004	2004-05-18	2004-12-12
2005	2005-01-04	2005-12-02
2006	2006-03-27	2006-12-22
2007	2007-01-19	2007-12-22
2008	2008-04-27	2008-12-18
2010	2010-03-08	2010-12-08
2011	2011-02-12	2011-12-18
2012	2012-03-01	2012-10-11
2013	2013-02-28	2013-12-05
2014	2014-02-14	2014-07-24
2015	2015-01-08	2015-11-05
2016	2016-01-29	2016-12-28
2017	2017-01-20	2017-11-30
2018	2018-04-15	2018-11-22
2019	2019-05-29	2019-09-21
2020	2020-02-01	2020-10-08
2021	2021-02-06	2021-11-12
2022	2022-03-17	2022-12-22
2023	2023-03-29	2023-12-10
2024	2024-07-20	2024-11-27
2025	2025-04-20	2025-11-29
2026	2026-03-01	2026-08-25

Every Fixed Threshold

Fixed thresholds at Truro
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	138	34	1992	10
25 mm (0.98 in): Days with 25 mm or more rain	105	10	1974	1
50 mm (1.97 in): Days with 50 mm or more rain	20	2	1889	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1889	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 Truro 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).

Truro Threshold Days by Year (ASN00024573)

Key Facts for Truro Thresholds

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

Every Fixed Threshold

Download the Data

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