Richmond Wtr Wks Threshold Days by Year (USC00127362)

17 fixed thresholds counted per year at Richmond Wtr Wks (USC00127362): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Richmond Wtr Wks Thresholds

Richmond Wtr Wks: days with a maximum temperature at or above 30 C (86 F) in 72 years, most in 1908 with 75.
Richmond Wtr Wks: days with a maximum temperature at or below 0 C (32 F) in 72 years, most in 1960 with 55.
Richmond Wtr Wks: nights with a minimum temperature at or below 0 C (32 F) in 72 years, most in 1917 with 158.
Richmond Wtr Wks: nights with a minimum temperature at or below -10 C (14 F) in 72 years, most in 1963 with 51.
17 fixed thresholds have at least one qualifying day at Richmond Wtr Wks.

Days at or above 30 C (86 F)

72 years with a qualifying day

Days per year at Richmond Wtr Wks with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 75 in 1908.

Days at or above 30 C (86 F) per year at Richmond Wtr Wks
Year	Days	Decade average
1897	60	62.7
1898	56	62.7
1899	72	62.7
1900	62	50.6
1901	62	50.6
1902	55	50.6
1903	45	50.6
1904	33	50.6
1905	42	50.6
1906	58	50.6
1907	38	50.6
1908	75	50.6
1909	36	50.6
1910	36	41.9
1911	56	41.9
1912	31	41.9
1913	61	41.9
1914	54	41.9
1915	11	41.9
1916	50	41.9
1917	25	41.9
1918	41	41.9
1919	54	41.9
1920	24	32
1921	57	32
1922	34	32
1923	32	32
1924	19	32
1925	46	32
1926	26	32
1927	24	32
1928	33	32
1929	25	32
1930	47	40.8
1931	54	40.8
1932	31	40.8
1933	49	40.8
1934	55	40.8
1935	29	40.8
1936	57	40.8
1937	27	40.8
1938	24	40.8
1939	35	40.8
1940	38	32
1941	41	32
1942	29	32
1943	31	32
1944	45	32
1945	20	32
1946	26	32
1947	24	32
1948	32	32
1949	34	32
1950	6	38.6
1951	19	38.6
1952	43	38.6
1953	54	38.6
1954	58	38.6
1955	55	38.6
1956	31	38.6
1957	39	38.6
1958	20	38.6
1959	61	38.6
1960	34	36.4
1961	31	36.4
1962	38	36.4
1963	30	36.4
1964	51	36.4
1965	40	36.4
1966	41	36.4
1967	26	36.4
1968	37	36.4

For each year, a bar from the first to the last day at Richmond Wtr Wks meeting 30 C (86 F).

First to last qualifying date each year at Richmond Wtr Wks
Year	First date	Last date
1897	1897-06-11	1897-10-15
1898	1898-06-02	1898-10-03
1899	1899-04-29	1899-10-15
1900	1900-05-14	1900-10-05
1901	1901-05-01	1901-09-24
1902	1902-04-21	1902-11-02
1903	1903-05-16	1903-09-26
1904	1904-05-25	1904-09-29
1905	1905-06-05	1905-09-28
1906	1906-05-14	1906-09-18
1907	1907-06-18	1907-09-20
1908	1908-05-16	1908-10-05
1909	1909-06-07	1909-09-22
1910	1910-06-16	1910-10-03
1911	1911-05-16	1911-09-18
1912	1912-05-23	1912-09-25
1913	1913-05-02	1913-10-10
1914	1914-05-25	1914-09-22
1915	1915-04-26	1915-09-14
1916	1916-05-25	1916-09-07
1917	1917-05-19	1917-08-19
1918	1918-05-22	1918-08-23
1919	1919-05-29	1919-10-02
1920	1920-05-23	1920-08-20
1921	1921-05-23	1921-09-02
1922	1922-06-07	1922-09-10
1923	1923-06-04	1923-08-21
1924	1924-06-19	1924-08-31
1925	1925-04-23	1925-09-19
1926	1926-05-08	1926-09-15
1927	1927-05-09	1927-09-17
1928	1928-05-10	1928-09-14
1929	1929-05-30	1929-09-05
1930	1930-04-11	1930-09-02
1931	1931-05-18	1931-09-22
1932	1932-05-26	1932-09-01
1933	1933-06-04	1933-09-11
1934	1934-05-09	1934-08-14
1935	1935-06-28	1935-08-12
1936	1936-05-08	1936-09-22
1937	1937-05-21	1937-09-03
1938	1938-05-03	1938-09-12
1939	1939-05-23	1939-10-08
1940	1940-06-05	1940-09-21
1941	1941-05-21	1941-09-30
1942	1942-04-30	1942-08-22
1943	1943-06-03	1943-09-01
1944	1944-06-02	1944-09-03
1945	1945-06-01	1945-09-07
1946	1946-06-07	1946-09-08
1947	1947-06-10	1947-09-11
1948	1948-06-04	1948-09-19
1949	1949-05-04	1949-08-27
1950	1950-05-25	1950-08-28
1951	1951-05-01	1951-10-04
1952	1952-05-05	1952-09-13
1953	1953-05-25	1953-09-29
1954	1954-05-31	1954-09-28
1955	1955-05-04	1955-09-21
1956	1956-05-11	1956-09-13
1957	1957-06-15	1957-09-02
1958	1958-06-05	1958-09-06
1959	1959-05-02	1959-10-04
1960	1960-04-23	1960-09-08
1961	1961-06-01	1961-09-24
1962	1962-04-30	1962-09-13
1963	1963-05-09	1963-08-07
1964	1964-05-18	1964-09-10
1965	1965-05-08	1965-09-18
1966	1966-06-09	1966-09-03
1967	1967-05-27	1967-08-08
1968	1968-06-06	1968-08-24

Every Fixed Threshold

Fixed thresholds at Richmond Wtr Wks
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	72	75	1908	37
35 C (95 F): Days	41	14	1897	4
90 F (32.2 C): Days	70	42	1901	11
100 F (37.8 C): Days	8	6	1936	1
0 C (32 F): Ice days (max	72	55	1960	32
0 C (32 F): Frost days (min	72	158	1917	103
-10 C (14 F): Days with min	72	51	1963	37
-20 C (-4 F): Days with min	57	19	1963	7
-30 C (-22 F): Days with min	6	2	1899	1
20 C (68 F): Tropical nights (min	72	29	1949	13
25 C (77 F): Days with min	3	1	1897	1
10 mm (0.39 in): Days with 10 mm or more rain	70	50	1950	33
25 mm (0.98 in): Days with 25 mm or more rain	69	17	1950	10
50 mm (1.97 in): Days with 50 mm or more rain	50	4	1907	2
100 mm (3.94 in): Days with 100 mm or more rain	3	2	1913	1
10 cm (3.9 in): Days with 10 cm or more snowfall	34	3	1914	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1910	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.

Download the Data

Data for Richmond Wtr Wks 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).

Richmond Wtr Wks Threshold Days by Year (USC00127362)

Key Facts for Richmond Wtr Wks Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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