Richmond C/K (Tnk) Threshold Days by Year

3 fixed thresholds counted per year at Richmond C/K (Tnk) (SF001428050): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Richmond C/K (Tnk) Thresholds

Richmond C/K (Tnk): days with 10 mm (0.39 in) or more of precipitation in 118 years, most in 1950 with 21.
Richmond C/K (Tnk): days with 25 mm (0.98 in) or more of precipitation in 105 years, most in 1974 with 9.
Richmond C/K (Tnk): days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1906 with 2.
3 fixed thresholds have at least one qualifying day at Richmond C/K (Tnk).

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

118 years with a qualifying day

Days per year at Richmond C/K (Tnk) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Richmond C/K (Tnk)
Year	Days	Decade average
1878	6	12
1879	18	12
1880	10	9.6
1881	12	9.6
1882	11	9.6
1883	4	9.6
1884	6	9.6
1885	9	9.6
1886	17	9.6
1887	13	9.6
1888	7	9.6
1889	7	9.6
1890	17	12.5
1891	14	12.5
1892	7	12.5
1893	14	12.5
1894	13	12.5
1895	14	12.5
1896	17	12.5
1897	3	12.5
1898	14	12.5
1899	12	12.5
1900	17	11.9
1902	17	11.9
1903	5	11.9
1904	11	11.9
1905	11	11.9
1906	14	11.9
1907	11	11.9
1908	5	11.9
1909	16	11.9
1910	10	10.2
1911	12	10.2
1912	8	10.2
1913	13	10.2
1914	11	10.2
1915	5	10.2
1916	9	10.2
1917	17	10.2
1918	12	10.2
1919	5	10.2
1920	14	10.2
1921	19	10.2
1922	4	10.2
1923	10	10.2
1924	9	10.2
1925	14	10.2
1926	5	10.2
1927	3	10.2
1928	11	10.2
1929	13	10.2
1930	12	10.8
1931	12	10.8
1932	7	10.8
1933	5	10.8
1934	16	10.8
1935	14	10.8
1936	9	10.8
1937	9	10.8
1938	7	10.8
1939	17	10.8
1940	8	9.3
1941	7	9.3
1942	5	9.3
1943	15	9.3
1944	8	9.3
1945	10	9.3
1946	12	9.3
1947	11	9.3
1948	12	9.3
1949	5	9.3
1950	21	11.8
1951	7	11.8
1952	14	11.8
1953	11	11.8
1954	11	11.8
1955	10	11.8
1956	13	11.8
1957	8	11.8
1958	14	11.8
1959	9	11.8
1960	9	11.4
1961	18	11.4
1962	7	11.4
1963	21	11.4
1964	8	11.4
1965	13	11.4
1966	6	11.4
1967	15	11.4
1968	10	11.4
1969	7	11.4
1970	8	13.6
1971	13	13.6
1972	7	13.6
1973	13	13.6
1974	19	13.6
1975	17	13.6
1976	21	13.6
1977	16	13.6
1979	8	13.6
1980	11	13.1
1981	18	13.1
1982	11	13.1
1983	16	13.1
1984	7	13.1
1985	12	13.1
1986	8	13.1
1987	12	13.1
1988	21	13.1
1989	15	13.1
1990	7	11
1991	17	11
1992	7	11
1993	8	11
1994	15	11
1995	12	11
1996	15	11
1997	7	11

For each year, a bar from the first to the last day at Richmond C/K (Tnk) meeting 10 mm (0.39 in).

First to last qualifying date each year at Richmond C/K (Tnk)
Year	First date	Last date
1878	1878-02-11	1878-08-28
1879	1879-01-07	1879-12-29
1880	1880-02-13	1880-11-17
1881	1881-01-04	1881-09-17
1882	1882-01-27	1882-12-28
1883	1883-03-11	1883-10-25
1884	1884-01-06	1884-05-12
1885	1885-02-15	1885-11-03
1886	1886-01-14	1886-12-20
1887	1887-01-22	1887-11-18
1888	1888-02-19	1888-09-21
1889	1889-01-05	1889-12-20
1890	1890-01-25	1890-12-26
1891	1891-01-10	1891-12-12
1892	1892-03-18	1892-09-08
1893	1893-01-11	1893-12-31
1894	1894-01-11	1894-12-11
1895	1895-01-02	1895-12-28
1896	1896-01-03	1896-12-29
1897	1897-01-12	1897-04-18
1898	1898-01-08	1898-11-23
1899	1899-02-14	1899-10-25
1900	1900-02-24	1900-12-20
1902	1902-02-03	1902-12-24
1903	1903-01-25	1903-06-20
1904	1904-01-09	1904-10-25
1905	1905-01-13	1905-10-10
1906	1906-02-10	1906-12-12
1907	1907-01-06	1907-12-13
1908	1908-01-07	1908-07-11
1909	1909-01-02	1909-12-26
1910	1910-01-17	1910-10-09
1911	1911-01-06	1911-11-05
1912	1912-01-13	1912-06-16
1913	1913-01-06	1913-10-09
1914	1914-02-11	1914-12-03
1915	1915-02-15	1915-10-29
1916	1916-01-05	1916-11-21
1917	1917-01-02	1917-11-28
1918	1918-01-01	1918-11-10
1919	1919-03-12	1919-11-21
1920	1920-01-29	1920-12-20
1921	1921-02-03	1921-12-08
1922	1922-01-09	1922-11-05
1923	1923-02-09	1923-07-20
1924	1924-01-25	1924-11-05
1925	1925-02-23	1925-11-23
1926	1926-03-05	1926-12-27
1927	1927-03-15	1927-12-03
1928	1928-01-04	1928-12-04
1929	1929-03-09	1929-12-10
1930	1930-01-14	1930-12-27
1931	1931-01-15	1931-12-31
1932	1932-02-11	1932-09-17
1933	1933-04-02	1933-12-12
1934	1934-01-03	1934-12-13
1935	1935-02-03	1935-11-02
1936	1936-02-25	1936-11-17
1937	1937-02-24	1937-12-23
1938	1938-01-25	1938-11-08
1939	1939-01-21	1939-10-20
1940	1940-02-03	1940-09-11
1941	1941-01-30	1941-08-19
1942	1942-01-26	1942-10-11
1943	1943-02-22	1943-12-11
1944	1944-03-05	1944-10-19
1945	1945-01-30	1945-12-05
1946	1946-01-19	1946-11-26
1947	1947-01-15	1947-12-22
1948	1948-01-25	1948-10-10
1949	1949-01-30	1949-12-09
1950	1950-01-08	1950-11-30
1951	1951-01-05	1951-09-30
1952	1952-02-05	1952-12-15
1953	1953-02-06	1953-12-28
1954	1954-03-04	1954-11-05
1955	1955-01-03	1955-12-04
1956	1956-02-05	1956-12-20
1957	1957-01-30	1957-12-10
1958	1958-01-12	1958-12-30
1959	1959-01-24	1959-12-03
1960	1960-01-28	1960-11-26
1961	1961-01-02	1961-11-27
1962	1962-01-18	1962-11-19
1963	1963-01-02	1963-12-08
1964	1964-01-09	1964-12-03
1965	1965-01-30	1965-11-15
1966	1966-01-21	1966-12-21
1967	1967-01-18	1967-11-23
1968	1968-03-02	1968-10-25
1969	1969-02-24	1969-10-22
1970	1970-05-02	1970-12-26
1971	1971-01-07	1971-12-14
1972	1972-01-14	1972-05-02
1973	1973-02-18	1973-12-23
1974	1974-01-26	1974-11-28
1975	1975-01-31	1975-12-22
1976	1976-01-03	1976-10-30
1977	1977-01-28	1977-12-30
1979	1979-02-13	1979-11-11
1980	1980-01-21	1980-12-26
1981	1981-01-25	1981-12-05
1982	1982-03-02	1982-12-05
1983	1983-01-16	1983-12-29
1984	1984-03-11	1984-11-28
1985	1985-01-14	1985-12-19
1986	1986-01-18	1986-11-24
1987	1987-02-07	1987-12-21
1988	1988-02-09	1988-12-24
1989	1989-01-01	1989-12-10
1990	1990-02-13	1990-12-05
1991	1991-01-15	1991-11-07
1992	1992-02-18	1992-11-07
1993	1993-02-11	1993-12-29
1994	1994-01-06	1994-12-26
1995	1995-01-11	1995-12-22
1996	1996-01-18	1996-12-28
1997	1997-01-18	1997-07-19

Every Fixed Threshold

Fixed thresholds at Richmond C/K (Tnk)
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	118	21	1950	7
25 mm (0.98 in): Days with 25 mm or more rain	105	9	1974	1
50 mm (1.97 in): Days with 50 mm or more rain	27	2	1906	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1878.

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Data for Richmond C/K (Tnk) 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Richmond C/K (Tnk) Threshold Days by Year

Key Facts for Richmond C/K (Tnk) Thresholds

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

Every Fixed Threshold

Download the Data

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