Richmond Intl AP Threshold Days by Year (USW00013740)
19 fixed thresholds counted per year at Richmond Intl AP (USW00013740): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Richmond Intl AP Thresholds
- Richmond Intl AP: days with a maximum temperature at or above 30 C (86 F) in 82 years, most in 1970 with 111.
- Richmond Intl AP: days with a maximum temperature at or above 90 F (32.2 C) in 82 years, most in 2010 with 78.
- Richmond Intl AP: nights with a minimum temperature at or below 0 C (32 F) in 82 years, most in 1941 with 114.
- Richmond Intl AP: nights with a minimum temperature at or above 20 C (68 F) in 82 years, most in 2018 with 96.
- 19 fixed thresholds have at least one qualifying day at Richmond Intl AP.
Days at or above 30 C (86 F)
82 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1940 | 61 | 72.2 |
| 1941 | 99 | 72.2 |
| 1947 | 71 | 72.2 |
| 1948 | 65 | 72.2 |
| 1949 | 65 | 72.2 |
| 1950 | 56 | 78.4 |
| 1951 | 72 | 78.4 |
| 1952 | 85 | 78.4 |
| 1953 | 87 | 78.4 |
| 1954 | 97 | 78.4 |
| 1955 | 69 | 78.4 |
| 1956 | 78 | 78.4 |
| 1957 | 87 | 78.4 |
| 1958 | 68 | 78.4 |
| 1959 | 85 | 78.4 |
| 1960 | 80 | 71.6 |
| 1961 | 90 | 71.6 |
| 1962 | 83 | 71.6 |
| 1963 | 72 | 71.6 |
| 1964 | 56 | 71.6 |
| 1965 | 63 | 71.6 |
| 1966 | 62 | 71.6 |
| 1967 | 64 | 71.6 |
| 1968 | 75 | 71.6 |
| 1969 | 71 | 71.6 |
| 1970 | 111 | 77.1 |
| 1971 | 63 | 77.1 |
| 1972 | 52 | 77.1 |
| 1973 | 75 | 77.1 |
| 1974 | 65 | 77.1 |
| 1975 | 73 | 77.1 |
| 1976 | 83 | 77.1 |
| 1977 | 101 | 77.1 |
| 1978 | 93 | 77.1 |
| 1979 | 55 | 77.1 |
| 1980 | 94 | 80.1 |
| 1981 | 73 | 80.1 |
| 1982 | 55 | 80.1 |
| 1983 | 85 | 80.1 |
| 1984 | 83 | 80.1 |
| 1985 | 92 | 80.1 |
| 1986 | 88 | 80.1 |
| 1987 | 90 | 80.1 |
| 1988 | 75 | 80.1 |
| 1989 | 66 | 80.1 |
| 1990 | 83 | 78.4 |
| 1991 | 104 | 78.4 |
| 1992 | 62 | 78.4 |
| 1993 | 96 | 78.4 |
| 1994 | 88 | 78.4 |
| 1995 | 78 | 78.4 |
| 1996 | 48 | 78.4 |
| 1997 | 66 | 78.4 |
| 1998 | 93 | 78.4 |
| 1999 | 66 | 78.4 |
| 2000 | 53 | 77.2 |
| 2001 | 61 | 77.2 |
| 2002 | 90 | 77.2 |
| 2003 | 52 | 77.2 |
| 2004 | 73 | 77.2 |
| 2005 | 95 | 77.2 |
| 2006 | 79 | 77.2 |
| 2007 | 98 | 77.2 |
| 2008 | 92 | 77.2 |
| 2009 | 79 | 77.2 |
| 2010 | 111 | 91.1 |
| 2011 | 96 | 91.1 |
| 2012 | 83 | 91.1 |
| 2013 | 80 | 91.1 |
| 2014 | 76 | 91.1 |
| 2015 | 91 | 91.1 |
| 2016 | 81 | 91.1 |
| 2017 | 84 | 91.1 |
| 2018 | 99 | 91.1 |
| 2019 | 110 | 91.1 |
| 2020 | 84 | 88.6 |
| 2021 | 91 | 88.6 |
| 2022 | 95 | 88.6 |
| 2023 | 88 | 88.6 |
| 2024 | 89 | 88.6 |
| 2025 | 71 | 88.6 |
| 2026 | 102 | 88.6 |
| Year | First date | Last date |
|---|---|---|
| 1940 | 1940-05-06 | 1940-09-25 |
| 1941 | 1941-04-14 | 1941-10-23 |
| 1947 | 1947-05-01 | 1947-10-23 |
| 1948 | 1948-03-21 | 1948-09-20 |
| 1949 | 1949-04-15 | 1949-09-19 |
| 1950 | 1950-05-05 | 1950-11-01 |
| 1951 | 1951-04-26 | 1951-10-07 |
| 1952 | 1952-04-20 | 1952-10-02 |
| 1953 | 1953-04-25 | 1953-09-29 |
| 1954 | 1954-04-08 | 1954-10-13 |
| 1955 | 1955-04-19 | 1955-09-20 |
| 1956 | 1956-04-04 | 1956-09-23 |
| 1957 | 1957-04-20 | 1957-09-22 |
| 1958 | 1958-04-19 | 1958-10-10 |
| 1959 | 1959-04-08 | 1959-10-11 |
| 1960 | 1960-04-14 | 1960-09-20 |
| 1961 | 1961-04-23 | 1961-09-26 |
| 1962 | 1962-04-22 | 1962-10-12 |
| 1963 | 1963-04-02 | 1963-09-20 |
| 1964 | 1964-04-18 | 1964-09-11 |
| 1965 | 1965-05-02 | 1965-09-23 |
| 1966 | 1966-04-24 | 1966-09-11 |
| 1967 | 1967-04-02 | 1967-10-05 |
| 1968 | 1968-03-21 | 1968-10-03 |
| 1969 | 1969-04-27 | 1969-09-17 |
| 1970 | 1970-04-21 | 1970-10-14 |
| 1971 | 1971-04-13 | 1971-09-17 |
| 1972 | 1972-04-15 | 1972-09-26 |
| 1973 | 1973-03-14 | 1973-10-05 |
| 1974 | 1974-04-14 | 1974-11-01 |
| 1975 | 1975-05-12 | 1975-10-16 |
| 1976 | 1976-04-15 | 1976-09-27 |
| 1977 | 1977-04-11 | 1977-10-02 |
| 1978 | 1978-04-01 | 1978-10-23 |
| 1979 | 1979-05-09 | 1979-09-14 |
| 1980 | 1980-04-24 | 1980-09-23 |
| 1981 | 1981-04-03 | 1981-10-06 |
| 1982 | 1982-05-07 | 1982-09-18 |
| 1983 | 1983-04-27 | 1983-09-20 |
| 1984 | 1984-04-27 | 1984-10-29 |
| 1985 | 1985-03-29 | 1985-10-15 |
| 1986 | 1986-03-30 | 1986-10-04 |
| 1987 | 1987-05-02 | 1987-09-18 |
| 1988 | 1988-05-16 | 1988-09-23 |
| 1989 | 1989-03-29 | 1989-09-22 |
| 1990 | 1990-03-12 | 1990-10-10 |
| 1991 | 1991-04-07 | 1991-10-04 |
| 1992 | 1992-04-10 | 1992-10-15 |
| 1993 | 1993-05-11 | 1993-11-15 |
| 1994 | 1994-04-19 | 1994-10-01 |
| 1995 | 1995-04-19 | 1995-09-14 |
| 1996 | 1996-04-22 | 1996-09-10 |
| 1997 | 1997-05-18 | 1997-10-10 |
| 1998 | 1998-03-29 | 1998-10-01 |
| 1999 | 1999-04-08 | 1999-09-07 |
| 2000 | 2000-05-06 | 2000-09-20 |
| 2001 | 2001-04-09 | 2001-10-24 |
| 2002 | 2002-04-15 | 2002-10-05 |
| 2003 | 2003-06-11 | 2003-09-20 |
| 2004 | 2004-04-18 | 2004-09-22 |
| 2005 | 2005-04-06 | 2005-09-26 |
| 2006 | 2006-03-12 | 2006-10-04 |
| 2007 | 2007-03-27 | 2007-10-09 |
| 2008 | 2008-04-18 | 2008-10-16 |
| 2009 | 2009-04-25 | 2009-10-09 |
| 2010 | 2010-04-05 | 2010-10-12 |
| 2011 | 2011-04-04 | 2011-09-15 |
| 2012 | 2012-03-15 | 2012-09-08 |
| 2013 | 2013-04-09 | 2013-10-06 |
| 2014 | 2014-05-08 | 2014-09-21 |
| 2015 | 2015-05-10 | 2015-09-19 |
| 2016 | 2016-04-18 | 2016-10-19 |
| 2017 | 2017-04-16 | 2017-10-10 |
| 2018 | 2018-05-02 | 2018-10-07 |
| 2019 | 2019-04-30 | 2019-10-03 |
| 2020 | 2020-03-20 | 2020-09-11 |
| 2021 | 2021-03-26 | 2021-10-03 |
| 2022 | 2022-04-13 | 2022-09-25 |
| 2023 | 2023-04-05 | 2023-10-30 |
| 2024 | 2024-04-15 | 2024-09-29 |
| 2025 | 2025-04-06 | 2025-09-25 |
| 2026 | 2026-03-11 | 2026-10-14 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 82 | 111 | 1970 | 102 |
| 35 C (95 F): Days | 76 | 40 | 2010 | 17 |
| 40 C (104 F): Days | 5 | 3 | 2010 | 1 |
| 90 F (32.2 C): Days | 82 | 78 | 2010 | 56 |
| 100 F (37.8 C): Days | 42 | 10 | 2010 | 2 |
| 0 C (32 F): Ice days (max | 75 | 17 | 1996 | 8 |
| 0 C (32 F): Frost days (min | 82 | 114 | 1941 | 49 |
| -10 C (14 F): Days with min | 71 | 24 | 1977 | 8 |
| -20 C (-4 F): Days with min | 3 | 5 | 1940 | 1 |
| 20 C (68 F): Tropical nights (min | 82 | 96 | 2018 | 78 |
| 25 C (77 F): Days with min | 31 | 5 | 2006 | 4 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 82 | 50 | 1979 | 29 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 82 | 25 | 2020 | 16 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 71 | 8 | 2008 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 13 | 1 | 1955 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1955 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 43 | 6 | 1962 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 6 | 2 | 1980 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 1940 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.
Download the Data
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 . Last revised (2026-10-17).