Washington Reagan Natl AP Weather Records (USW00013743)
Record envelope, standing records and threshold days for Washington Reagan Natl AP (USW00013743), Virginia, United States, with 86 years of record.
Key Facts for Washington Reagan Natl AP
- Washington Reagan Natl AP (USW00013743) is a weather station in Virginia, United States at 38.85 latitude and -77.03 longitude, 4 m (13 ft) above sea level.
- The station reports from 1941 to 2026, 86 years of record.
- 1,464 records set at Washington Reagan Natl AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Washington Reagan Natl AP tied a daily record high minimum temperature of 22.8 C (73.0 F) on 20 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Virginia, United States, 38.85 latitude, -77.03 longitude.
- Elevation: 4 m (13 ft).
- Period of record: 1941 to 2026, 86 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
12 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 26.7 C (80.1 F) | -20.6 C (-5.1 F) | 17.2 C (63.0 F) | -12.2 C (10.0 F) |
| Feb | 27.8 C (82.0 F) | -15.6 C (3.9 F) | 18.3 C (64.9 F) | -10.0 C (14.0 F) |
| Mar | 31.7 C (89.1 F) | -11.7 C (10.9 F) | 30.0 C (86.0 F) | -2.8 C (27.0 F) |
| Apr | 35.0 C (95.0 F) | -4.4 C (24.1 F) | 32.2 C (90.0 F) | 1.7 C (35.1 F) |
| May | 37.2 C (99.0 F) | 1.1 C (34.0 F) | 36.1 C (97.0 F) | 6.7 C (44.1 F) |
| Jun | 40.0 C (104.0 F) | 8.3 C (46.9 F) | 37.8 C (100.0 F) | 12.8 C (55.0 F) |
| Jul | 40.6 C (105.1 F) | 12.2 C (54.0 F) | 39.4 C (102.9 F) | 18.9 C (66.0 F) |
| Aug | 40.6 C (105.1 F) | 9.4 C (48.9 F) | 34.4 C (93.9 F) | 17.8 C (64.0 F) |
| Sep | 38.3 C (100.9 F) | 3.9 C (39.0 F) | 36.7 C (98.1 F) | 11.7 C (53.1 F) |
| Oct | 36.7 C (98.1 F) | -1.7 C (28.9 F) | 30.0 C (86.0 F) | 9.4 C (48.9 F) |
| Nov | 30.0 C (86.0 F) | -8.9 C (16.0 F) | n/a | n/a |
| Dec | 26.1 C (79.0 F) | -17.2 C (1.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1941 | 14 |
| 1942 | 23 |
| 1943 | 25 |
| 1944 | 14 |
| 1945 | 28 |
| 1946 | 23 |
| 1947 | 27 |
| 1948 | 17 |
| 1949 | 17 |
| 1950 | 22 |
| 1951 | 20 |
| 1952 | 19 |
| 1953 | 20 |
| 1954 | 29 |
| 1955 | 14 |
| 1956 | 28 |
| 1957 | 17 |
| 1958 | 18 |
| 1959 | 18 |
| 1960 | 24 |
| 1961 | 24 |
| 1962 | 23 |
| 1963 | 34 |
| 1964 | 27 |
| 1965 | 20 |
| 1966 | 15 |
| 1967 | 21 |
| 1968 | 16 |
| 1969 | 11 |
| 1970 | 19 |
| 1971 | 12 |
| 1972 | 26 |
| 1973 | 10 |
| 1974 | 20 |
| 1975 | 10 |
| 1976 | 19 |
| 1977 | 15 |
| 1978 | 7 |
| 1979 | 32 |
| 1980 | 19 |
| 1981 | 12 |
| 1982 | 16 |
| 1983 | 22 |
| 1984 | 10 |
| 1985 | 9 |
| 1986 | 16 |
| 1987 | 11 |
| 1988 | 18 |
| 1989 | 25 |
| 1990 | 25 |
| 1991 | 33 |
| 1992 | 9 |
| 1993 | 18 |
| 1994 | 15 |
| 1995 | 8 |
| 1996 | 16 |
| 1997 | 17 |
| 1998 | 11 |
| 1999 | 11 |
| 2000 | 13 |
| 2001 | 11 |
| 2002 | 23 |
| 2003 | 11 |
| 2004 | 3 |
| 2005 | 9 |
| 2006 | 11 |
| 2007 | 12 |
| 2008 | 9 |
| 2009 | 9 |
| 2010 | 13 |
| 2011 | 23 |
| 2012 | 24 |
| 2013 | 9 |
| 2014 | 11 |
| 2015 | 25 |
| 2016 | 23 |
| 2017 | 16 |
| 2018 | 21 |
| 2019 | 10 |
| 2020 | 6 |
| 2021 | 16 |
| 2022 | 10 |
| 2023 | 10 |
| 2024 | 16 |
| 2025 | 5 |
| 2026 | 16 |
All-Time Record Progression
12 new records| Date | Kind | Detail |
|---|---|---|
| 1972-06-21 | Record daily precipitation | Record daily precipitation 155.2 mm (6.1 in) |
| 1979-02-19 | Record daily snowfall | Record daily snowfall 35.6 cm (14.0 in) |
| 1979-02-19 | Record snow depth | Record snow depth 45.7 cm (18.0 in) |
| 1979-02-20 | Record snow depth | Record snow depth 55.9 cm (22.0 in) |
| 1981-07-09 | Record high minimum temperature | Record high minimum temperature 27.8 C (82.0 F) |
| 1982-01-17 | Record low maximum temperature | Record low maximum temperature -12.2 C (10.0 F) |
| 1982-01-17 | Record low minimum temperature | Record low minimum temperature -20.6 C (-5.1 F) |
| 1983-02-11 | Record daily snowfall | Record daily snowfall 41.7 cm (16.4 in) |
| 1983-07-16 | Record high minimum temperature | Record high minimum temperature 28.9 C (84.0 F) |
| 1988-07-16 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
| 1994-01-19 | Record low maximum temperature | Record low maximum temperature -13.3 C (8.1 F) |
| 1997-08-17 | Record high maximum temperature | Record high maximum temperature 40.6 C (105.1 F) |
Wettest Day of Each Month
Jun: 155.2 mm (6.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 56.9 mm (2.2 in) | 9 January 2024 |
| Feb | 57.7 mm (2.3 in) | 22 February 2003 |
| Mar | 58.2 mm (2.3 in) | 13 March 1993 |
| Apr | 77.2 mm (3.0 in) | 14 April 1970 |
| May | 82.3 mm (3.2 in) | 5 May 1953 |
| Jun | 155.2 mm (6.1 in) | 21 June 1972 |
| Jul | 119.1 mm (4.7 in) | 9 July 1970 |
| Aug | 144.5 mm (5.7 in) | 8 August 1942 |
| Sep | 120.9 mm (4.8 in) | 16 September 1976 |
| Oct | 97.8 mm (3.9 in) | 29 October 2012 |
| Nov | 78.0 mm (3.1 in) | 8 November 1943 |
| Dec | 78.7 mm (3.1 in) | 7 December 2011 |
Period of Record Coverage
1941 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1941 | 199 | 55% | No |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 286 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 20 September 2026 | Washington Reagan Natl AP, US | daily high min (Tie, Provisional) | 22.8 C (73.0 F) | tie | 60 years | 6 of 100 (Routine) |
| 18 September 2026 | Washington Reagan Natl AP, US | daily high min (Tie, Provisional) | 22.8 C (73.0 F) | tie | 84 years | 8 of 100 (Routine) |
| 13 September 2026 | Washington Reagan Natl AP, US | daily high min (Tie, Provisional) | 23.3 C (73.9 F) | tie | 17 years | 3 of 100 (Routine) |
| 1 September 2026 | Washington Reagan Natl AP, US | daily high min (Tie, Provisional) | 25.0 C (77.0 F) | tie | 52 years | 5 of 100 (Routine) |
| 4 July 2026 | Washington Reagan Natl AP, US | daily high max | 39.4 C (102.9 F) | 2.2 C (4.0 F) | 27 years | 22 of 100 (Routine) |
| 3 July 2026 | Washington Reagan Natl AP, US | daily high max | 38.9 C (102.0 F) | 0.6 C (1.1 F) | 60 years | 27 of 100 (Routine) |
| 3 July 2026 | Washington Reagan Natl AP, US | all-time high min (Tie) | 28.9 C (84.0 F) | tie | 42 years | 10 of 100 (Routine) |
| 2 July 2026 | Washington Reagan Natl AP, US | daily high max | 38.9 C (102.0 F) | 1.7 C (3.1 F) | 12 years | 16 of 100 (Routine) |
| 2 July 2026 | Washington Reagan Natl AP, US | daily high min | 26.7 C (80.1 F) | 0.6 C (1.1 F) | 13 years | 14 of 100 (Routine) |
| 12 June 2026 | Washington Reagan Natl AP, US | daily high max | 37.8 C (100.0 F) | 2.8 C (5.0 F) | 40 years | 27 of 100 (Routine) |
| 11 June 2026 | Washington Reagan Natl AP, US | daily high max | 37.2 C (99.0 F) | 1.1 C (2.0 F) | 41 years | 22 of 100 (Routine) |
| 5 June 2026 | Washington Reagan Natl AP, US | daily high max | 33.3 C (91.9 F) | 0.5 C (0.9 F) | 83 years | 33 of 100 (Routine) |
| 20 May 2026 | Washington Reagan Natl AP, US | daily high max (Tie) | 35.6 C (96.1 F) | tie | 29 years | 4 of 100 (Routine) |
| 19 May 2026 | Washington Reagan Natl AP, US | daily high max | 36.1 C (97.0 F) | 0.5 C (0.9 F) | 28 years | 17 of 100 (Routine) |
| 19 May 2026 | Washington Reagan Natl AP, US | daily high min (Tie) | 22.2 C (72.0 F) | tie | 11 years | 2 of 100 (Routine) |
| 17 April 2026 | Washington Reagan Natl AP, US | daily high min | 20.0 C (68.0 F) | 1.7 C (3.1 F) | 24 years | 19 of 100 (Routine) |
| 16 April 2026 | Washington Reagan Natl AP, US | daily high min | 18.9 C (66.0 F) | 0.6 C (1.1 F) | 24 years | 16 of 100 (Routine) |
| 15 April 2026 | Washington Reagan Natl AP, US | daily high max | 32.2 C (90.0 F) | 1.1 C (2.0 F) | 65 years | 28 of 100 (Routine) |
| 4 April 2026 | Washington Reagan Natl AP, US | daily high max (Tie) | 29.4 C (84.9 F) | tie | 69 years | 7 of 100 (Routine) |
| 11 March 2026 | Washington Reagan Natl AP, US | daily high max | 30.0 C (86.0 F) | 3.9 C (7.0 F) | 4 years | 15 of 100 (Routine) |
Climate Trend
84 complete years, 1942 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1942 | 13.8 C | -0.78 C |
| 1943 | 13.7 C | -0.89 C |
| 1944 | 13.7 C | -0.89 C |
| 1945 | 14.0 C | -0.60 C |
| 1946 | 14.5 C | -0.09 C |
| 1947 | 13.6 C | -0.95 C |
| 1948 | 13.7 C | -0.90 C |
| 1949 | 15.0 C | +0.45 C |
| 1950 | 13.8 C | -0.76 C |
| 1951 | 14.2 C | -0.39 C |
| 1952 | 14.2 C | -0.35 C |
| 1953 | 14.9 C | +0.37 C |
| 1954 | 14.3 C | -0.31 C |
| 1955 | 13.9 C | -0.64 C |
| 1956 | 13.5 C | -1.06 C |
| 1957 | 14.4 C | -0.12 C |
| 1958 | 13.1 C | -1.51 C |
| 1959 | 14.9 C | +0.36 C |
| 1960 | 13.5 C | -1.05 C |
| 1961 | 13.7 C | -0.86 C |
| 1962 | 13.2 C | -1.36 C |
| 1963 | 13.2 C | -1.38 C |
| 1964 | 14.1 C | -0.44 C |
| 1965 | 13.8 C | -0.79 C |
| 1966 | 13.8 C | -0.77 C |
| 1967 | 13.5 C | -1.04 C |
| 1968 | 14.2 C | -0.40 C |
| 1969 | 14.0 C | -0.57 C |
| 1970 | 14.3 C | -0.29 C |
| 1971 | 14.4 C | -0.19 C |
| 1972 | 13.7 C | -0.86 C |
| 1973 | 15.2 C | +0.61 C |
| 1974 | 14.9 C | +0.29 C |
| 1975 | 15.2 C | +0.63 C |
| 1976 | 14.3 C | -0.22 C |
| 1977 | 14.8 C | +0.20 C |
| 1978 | 14.5 C | -0.09 C |
| 1979 | 14.5 C | -0.10 C |
| 1980 | 15.3 C | +0.73 C |
| 1981 | 15.0 C | +0.41 C |
| 1982 | 14.2 C | -0.33 C |
| 1983 | 14.6 C | +0.08 C |
| 1984 | 14.3 C | -0.23 C |
| 1985 | 14.5 C | -0.04 C |
| 1986 | 14.3 C | -0.26 C |
| 1987 | 14.5 C | -0.09 C |
| 1988 | 13.9 C | -0.65 C |
| 1989 | 13.8 C | -0.73 C |
| 1990 | 15.5 C | +0.98 C |
| 1991 | 15.7 C | +1.09 C |
| 1992 | 13.7 C | -0.83 C |
| 1993 | 14.3 C | -0.30 C |
| 1994 | 14.6 C | +0.01 C |
| 1995 | 14.4 C | -0.19 C |
| 1996 | 13.8 C | -0.77 C |
| 1997 | 14.4 C | -0.14 C |
| 1998 | 15.5 C | +0.98 C |
| 1999 | 14.9 C | +0.38 C |
| 2000 | 13.9 C | -0.68 C |
| 2001 | 14.7 C | +0.15 C |
| 2002 | 15.1 C | +0.58 C |
| 2003 | 13.5 C | -1.02 C |
| 2004 | 14.4 C | -0.15 C |
| 2005 | 14.5 C | -0.11 C |
| 2006 | 15.1 C | +0.51 C |
| 2007 | 15.0 C | +0.40 C |
| 2008 | 15.1 C | +0.52 C |
| 2009 | 14.1 C | -0.48 C |
| 2010 | 15.4 C | +0.84 C |
| 2011 | 15.5 C | +0.92 C |
| 2012 | 16.4 C | +1.82 C |
| 2013 | 14.9 C | +0.32 C |
| 2014 | 14.7 C | +0.15 C |
| 2015 | 15.6 C | +1.06 C |
| 2016 | 15.8 C | +1.20 C |
| 2017 | 16.0 C | +1.42 C |
| 2018 | 15.5 C | +0.90 C |
| 2019 | 15.9 C | +1.32 C |
| 2020 | 15.9 C | +1.31 C |
| 2021 | 15.8 C | +1.23 C |
| 2022 | 15.3 C | +0.70 C |
| 2023 | 16.2 C | +1.65 C |
| 2024 | 16.5 C | +1.98 C |
| 2025 | 15.3 C | +0.69 C |
The annual mean temperature here has risen by 0.2 C (0.2 to 0.3) per decade over 1942 to 2025. In Fahrenheit: 0.4 F (0.3 to 0.5) per decade. The slope is a straight line fitted to 84 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.5) per decade | 1942 to 2025 | 84 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1942 to 2025 | 84 | Rise |
| Mean daily minimum | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.4 to 0.6) per decade | 1942 to 2025 | 84 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1941 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.6 C (105.1 F) | 1997 | 36.7 C (98.1 F) | 86 |
| Coldest night (TNn) | -20.6 C (-5.1 F) | 1982 | -11.7 C (10.9 F) | 86 |
| Wettest day (Rx1day) | 155.2 mm (6.1 in) | 1972 | 65.6 mm (2.6 in) | 86 |
| Wettest five days (Rx5day) | 283.5 mm (11.2 in) | 2006 | 98.1 mm (3.9 in) | 86 |
| Longest dry spell (CDD) | 43 days | 2000 | 20 days | 86 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1941 | 37.8 C (100.0 F) |
| 1942 | 37.2 C (99.0 F) |
| 1943 | 36.7 C (98.1 F) |
| 1944 | 36.7 C (98.1 F) |
| 1945 | 37.2 C (99.0 F) |
| 1946 | 35.6 C (96.1 F) |
| 1947 | 35.6 C (96.1 F) |
| 1948 | 37.2 C (99.0 F) |
| 1949 | 36.1 C (97.0 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 35.6 C (96.1 F) |
| 1952 | 38.3 C (100.9 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 39.4 C (102.9 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 35.0 C (95.0 F) |
| 1957 | 38.3 C (100.9 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 37.8 C (100.0 F) |
| 1960 | 35.0 C (95.0 F) |
| 1961 | 35.0 C (95.0 F) |
| 1962 | 37.2 C (99.0 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 37.8 C (100.0 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 38.3 C (100.9 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 36.7 C (98.1 F) |
| 1969 | 37.8 C (100.0 F) |
| 1970 | 35.6 C (96.1 F) |
| 1971 | 33.9 C (93.0 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 36.7 C (98.1 F) |
| 1974 | 35.6 C (96.1 F) |
| 1975 | 36.7 C (98.1 F) |
| 1976 | 35.0 C (95.0 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 37.8 C (100.0 F) |
| 1979 | 36.1 C (97.0 F) |
| 1980 | 39.4 C (102.9 F) |
| 1981 | 36.7 C (98.1 F) |
| 1982 | 36.1 C (97.0 F) |
| 1983 | 38.3 C (100.9 F) |
| 1984 | 36.1 C (97.0 F) |
| 1985 | 36.7 C (98.1 F) |
| 1986 | 36.7 C (98.1 F) |
| 1987 | 37.8 C (100.0 F) |
| 1988 | 40.0 C (104.0 F) |
| 1989 | 35.6 C (96.1 F) |
| 1990 | 37.8 C (100.0 F) |
| 1991 | 38.3 C (100.9 F) |
| 1992 | 37.2 C (99.0 F) |
| 1993 | 37.8 C (100.0 F) |
| 1994 | 38.3 C (100.9 F) |
| 1995 | 37.2 C (99.0 F) |
| 1996 | 35.6 C (96.1 F) |
| 1997 | 40.6 C (105.1 F) |
| 1998 | 36.1 C (97.0 F) |
| 1999 | 39.4 C (102.9 F) |
| 2000 | 34.4 C (93.9 F) |
| 2001 | 36.1 C (97.0 F) |
| 2002 | 37.8 C (100.0 F) |
| 2003 | 34.4 C (93.9 F) |
| 2004 | 33.3 C (91.9 F) |
| 2005 | 36.1 C (97.0 F) |
| 2006 | 38.3 C (100.9 F) |
| 2007 | 38.9 C (102.0 F) |
| 2008 | 36.7 C (98.1 F) |
| 2009 | 36.1 C (97.0 F) |
| 2010 | 38.9 C (102.0 F) |
| 2011 | 40.0 C (104.0 F) |
| 2012 | 40.6 C (105.1 F) |
| 2013 | 36.1 C (97.0 F) |
| 2014 | 37.2 C (99.0 F) |
| 2015 | 36.7 C (98.1 F) |
| 2016 | 38.3 C (100.9 F) |
| 2017 | 36.7 C (98.1 F) |
| 2018 | 36.7 C (98.1 F) |
| 2019 | 37.2 C (99.0 F) |
| 2020 | 37.2 C (99.0 F) |
| 2021 | 36.1 C (97.0 F) |
| 2022 | 37.2 C (99.0 F) |
| 2023 | 37.2 C (99.0 F) |
| 2024 | 40.0 C (104.0 F) |
| 2025 | 37.2 C (99.0 F) |
| 2026 | 39.4 C (102.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1941 | -3.9 C (25.0 F) |
| 1942 | -17.2 C (1.0 F) |
| 1943 | -13.9 C (7.0 F) |
| 1944 | -8.9 C (16.0 F) |
| 1945 | -11.1 C (12.0 F) |
| 1946 | -11.7 C (10.9 F) |
| 1947 | -13.9 C (7.0 F) |
| 1948 | -15.0 C (5.0 F) |
| 1949 | -6.1 C (21.0 F) |
| 1950 | -9.4 C (15.1 F) |
| 1951 | -11.7 C (10.9 F) |
| 1952 | -9.4 C (15.1 F) |
| 1953 | -8.3 C (17.1 F) |
| 1954 | -10.6 C (12.9 F) |
| 1955 | -12.2 C (10.0 F) |
| 1956 | -6.7 C (19.9 F) |
| 1957 | -13.3 C (8.1 F) |
| 1958 | -15.0 C (5.0 F) |
| 1959 | -11.7 C (10.9 F) |
| 1960 | -12.2 C (10.0 F) |
| 1961 | -15.6 C (3.9 F) |
| 1962 | -12.8 C (9.0 F) |
| 1963 | -16.1 C (3.0 F) |
| 1964 | -13.9 C (7.0 F) |
| 1965 | -12.8 C (9.0 F) |
| 1966 | -12.8 C (9.0 F) |
| 1967 | -11.7 C (10.9 F) |
| 1968 | -13.9 C (7.0 F) |
| 1969 | -10.6 C (12.9 F) |
| 1970 | -15.6 C (3.9 F) |
| 1971 | -11.7 C (10.9 F) |
| 1972 | -16.1 C (3.0 F) |
| 1973 | -12.8 C (9.0 F) |
| 1974 | -7.8 C (18.0 F) |
| 1975 | -8.3 C (17.1 F) |
| 1976 | -11.7 C (10.9 F) |
| 1977 | -16.7 C (1.9 F) |
| 1978 | -12.2 C (10.0 F) |
| 1979 | -14.4 C (6.1 F) |
| 1980 | -11.1 C (12.0 F) |
| 1981 | -11.7 C (10.9 F) |
| 1982 | -20.6 C (-5.1 F) |
| 1983 | -16.1 C (3.0 F) |
| 1984 | -16.1 C (3.0 F) |
| 1985 | -20.0 C (-4.0 F) |
| 1986 | -11.1 C (12.0 F) |
| 1987 | -13.9 C (7.0 F) |
| 1988 | -12.2 C (10.0 F) |
| 1989 | -15.0 C (5.0 F) |
| 1990 | -10.0 C (14.0 F) |
| 1991 | -8.3 C (17.1 F) |
| 1992 | -10.0 C (14.0 F) |
| 1993 | -11.7 C (10.9 F) |
| 1994 | -20.0 C (-4.0 F) |
| 1995 | -13.9 C (7.0 F) |
| 1996 | -15.0 C (5.0 F) |
| 1997 | -11.7 C (10.9 F) |
| 1998 | -7.8 C (18.0 F) |
| 1999 | -8.9 C (16.0 F) |
| 2000 | -10.0 C (14.0 F) |
| 2001 | -6.7 C (19.9 F) |
| 2002 | -7.8 C (18.0 F) |
| 2003 | -11.7 C (10.9 F) |
| 2004 | -13.3 C (8.1 F) |
| 2005 | -11.1 C (12.0 F) |
| 2006 | -10.0 C (14.0 F) |
| 2007 | -12.2 C (10.0 F) |
| 2008 | -8.9 C (16.0 F) |
| 2009 | -13.3 C (8.1 F) |
| 2010 | -8.9 C (16.0 F) |
| 2011 | -8.3 C (17.1 F) |
| 2012 | -8.3 C (17.1 F) |
| 2013 | -9.4 C (15.1 F) |
| 2014 | -14.3 C (6.3 F) |
| 2015 | -14.9 C (5.2 F) |
| 2016 | -10.5 C (13.1 F) |
| 2017 | -9.3 C (15.3 F) |
| 2018 | -13.2 C (8.2 F) |
| 2019 | -12.1 C (10.2 F) |
| 2020 | -5.5 C (22.1 F) |
| 2021 | -4.3 C (24.3 F) |
| 2022 | -12.7 C (9.1 F) |
| 2023 | -8.8 C (16.2 F) |
| 2024 | -8.8 C (16.2 F) |
| 2025 | -9.3 C (15.3 F) |
| 2026 | -12.2 C (10.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1941 | 46.0 mm (1.8 in) |
| 1942 | 144.5 mm (5.7 in) |
| 1943 | 78.0 mm (3.1 in) |
| 1944 | 134.9 mm (5.3 in) |
| 1945 | 52.1 mm (2.1 in) |
| 1946 | 65.8 mm (2.6 in) |
| 1947 | 88.1 mm (3.5 in) |
| 1948 | 72.1 mm (2.8 in) |
| 1949 | 48.8 mm (1.9 in) |
| 1950 | 95.0 mm (3.7 in) |
| 1951 | 73.7 mm (2.9 in) |
| 1952 | 71.6 mm (2.8 in) |
| 1953 | 82.3 mm (3.2 in) |
| 1954 | 43.9 mm (1.7 in) |
| 1955 | 138.2 mm (5.4 in) |
| 1956 | 43.2 mm (1.7 in) |
| 1957 | 43.4 mm (1.7 in) |
| 1958 | 79.2 mm (3.1 in) |
| 1959 | 70.1 mm (2.8 in) |
| 1960 | 55.4 mm (2.2 in) |
| 1961 | 61.0 mm (2.4 in) |
| 1962 | 42.7 mm (1.7 in) |
| 1963 | 122.7 mm (4.8 in) |
| 1964 | 31.8 mm (1.3 in) |
| 1965 | 40.6 mm (1.6 in) |
| 1966 | 103.4 mm (4.1 in) |
| 1967 | 88.1 mm (3.5 in) |
| 1968 | 56.6 mm (2.2 in) |
| 1969 | 110.5 mm (4.4 in) |
| 1970 | 119.1 mm (4.7 in) |
| 1971 | 96.3 mm (3.8 in) |
| 1972 | 155.2 mm (6.1 in) |
| 1973 | 73.2 mm (2.9 in) |
| 1974 | 48.3 mm (1.9 in) |
| 1975 | 87.9 mm (3.5 in) |
| 1976 | 120.9 mm (4.8 in) |
| 1977 | 71.4 mm (2.8 in) |
| 1978 | 54.9 mm (2.2 in) |
| 1979 | 93.5 mm (3.7 in) |
| 1980 | 40.9 mm (1.6 in) |
| 1981 | 40.4 mm (1.6 in) |
| 1982 | 44.5 mm (1.8 in) |
| 1983 | 58.7 mm (2.3 in) |
| 1984 | 43.2 mm (1.7 in) |
| 1985 | 80.5 mm (3.2 in) |
| 1986 | 59.9 mm (2.4 in) |
| 1987 | 54.1 mm (2.1 in) |
| 1988 | 34.0 mm (1.3 in) |
| 1989 | 53.3 mm (2.1 in) |
| 1990 | 55.6 mm (2.2 in) |
| 1991 | 40.4 mm (1.6 in) |
| 1992 | 46.7 mm (1.8 in) |
| 1993 | 58.2 mm (2.3 in) |
| 1994 | 41.9 mm (1.6 in) |
| 1995 | 85.3 mm (3.4 in) |
| 1996 | 65.3 mm (2.6 in) |
| 1997 | 55.1 mm (2.2 in) |
| 1998 | 51.3 mm (2.0 in) |
| 1999 | 93.2 mm (3.7 in) |
| 2000 | 47.2 mm (1.9 in) |
| 2001 | 41.7 mm (1.6 in) |
| 2002 | 48.8 mm (1.9 in) |
| 2003 | 57.9 mm (2.3 in) |
| 2004 | 62.5 mm (2.5 in) |
| 2005 | 93.2 mm (3.7 in) |
| 2006 | 131.8 mm (5.2 in) |
| 2007 | 67.3 mm (2.6 in) |
| 2008 | 88.9 mm (3.5 in) |
| 2009 | 41.9 mm (1.6 in) |
| 2010 | 118.4 mm (4.7 in) |
| 2011 | 84.6 mm (3.3 in) |
| 2012 | 97.8 mm (3.9 in) |
| 2013 | 72.6 mm (2.9 in) |
| 2014 | 68.6 mm (2.7 in) |
| 2015 | 69.9 mm (2.8 in) |
| 2016 | 31.5 mm (1.2 in) |
| 2017 | 84.1 mm (3.3 in) |
| 2018 | 101.6 mm (4.0 in) |
| 2019 | 87.4 mm (3.4 in) |
| 2020 | 73.2 mm (2.9 in) |
| 2021 | 60.5 mm (2.4 in) |
| 2022 | 102.9 mm (4.1 in) |
| 2023 | 54.4 mm (2.1 in) |
| 2024 | 56.9 mm (2.2 in) |
| 2025 | 45.0 mm (1.8 in) |
| 2026 | 50.5 mm (2.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1941 | 54.1 mm (2.1 in) |
| 1942 | 217.7 mm (8.6 in) |
| 1943 | 80.0 mm (3.1 in) |
| 1944 | 145.6 mm (5.7 in) |
| 1945 | 124.0 mm (4.9 in) |
| 1946 | 79.0 mm (3.1 in) |
| 1947 | 95.2 mm (3.7 in) |
| 1948 | 148.8 mm (5.9 in) |
| 1949 | 86.4 mm (3.4 in) |
| 1950 | 172.4 mm (6.8 in) |
| 1951 | 98.5 mm (3.9 in) |
| 1952 | 117.1 mm (4.6 in) |
| 1953 | 144.7 mm (5.7 in) |
| 1954 | 62.5 mm (2.5 in) |
| 1955 | 228.4 mm (9.0 in) |
| 1956 | 69.3 mm (2.7 in) |
| 1957 | 64.3 mm (2.5 in) |
| 1958 | 116.8 mm (4.6 in) |
| 1959 | 73.9 mm (2.9 in) |
| 1960 | 92.8 mm (3.7 in) |
| 1961 | 120.9 mm (4.8 in) |
| 1962 | 48.8 mm (1.9 in) |
| 1963 | 166.2 mm (6.5 in) |
| 1964 | 68.0 mm (2.7 in) |
| 1965 | 49.8 mm (2.0 in) |
| 1966 | 109.4 mm (4.3 in) |
| 1967 | 166.6 mm (6.6 in) |
| 1968 | 75.0 mm (3.0 in) |
| 1969 | 151.4 mm (6.0 in) |
| 1970 | 119.1 mm (4.7 in) |
| 1971 | 97.8 mm (3.9 in) |
| 1972 | 218.7 mm (8.6 in) |
| 1973 | 101.6 mm (4.0 in) |
| 1974 | 85.3 mm (3.4 in) |
| 1975 | 230.7 mm (9.1 in) |
| 1976 | 148.1 mm (5.8 in) |
| 1977 | 92.7 mm (3.6 in) |
| 1978 | 72.2 mm (2.8 in) |
| 1979 | 97.1 mm (3.8 in) |
| 1980 | 50.6 mm (2.0 in) |
| 1981 | 60.5 mm (2.4 in) |
| 1982 | 98.5 mm (3.9 in) |
| 1983 | 77.2 mm (3.0 in) |
| 1984 | 104.6 mm (4.1 in) |
| 1985 | 101.4 mm (4.0 in) |
| 1986 | 73.4 mm (2.9 in) |
| 1987 | 82.8 mm (3.3 in) |
| 1988 | 65.0 mm (2.6 in) |
| 1989 | 89.9 mm (3.5 in) |
| 1990 | 98.6 mm (3.9 in) |
| 1991 | 66.6 mm (2.6 in) |
| 1992 | 74.7 mm (2.9 in) |
| 1993 | 102.4 mm (4.0 in) |
| 1994 | 101.9 mm (4.0 in) |
| 1995 | 85.3 mm (3.4 in) |
| 1996 | 90.2 mm (3.6 in) |
| 1997 | 86.6 mm (3.4 in) |
| 1998 | 75.8 mm (3.0 in) |
| 1999 | 116.1 mm (4.6 in) |
| 2000 | 70.1 mm (2.8 in) |
| 2001 | 61.2 mm (2.4 in) |
| 2002 | 59.9 mm (2.4 in) |
| 2003 | 80.3 mm (3.2 in) |
| 2004 | 98.2 mm (3.9 in) |
| 2005 | 187.7 mm (7.4 in) |
| 2006 | 283.5 mm (11.2 in) |
| 2007 | 157.0 mm (6.2 in) |
| 2008 | 195.8 mm (7.7 in) |
| 2009 | 81.1 mm (3.2 in) |
| 2010 | 139.1 mm (5.5 in) |
| 2011 | 176.0 mm (6.9 in) |
| 2012 | 122.9 mm (4.8 in) |
| 2013 | 147.3 mm (5.8 in) |
| 2014 | 106.2 mm (4.2 in) |
| 2015 | 103.4 mm (4.1 in) |
| 2016 | 59.2 mm (2.3 in) |
| 2017 | 96.0 mm (3.8 in) |
| 2018 | 172.5 mm (6.8 in) |
| 2019 | 111.8 mm (4.4 in) |
| 2020 | 98.0 mm (3.9 in) |
| 2021 | 117.3 mm (4.6 in) |
| 2022 | 115.1 mm (4.5 in) |
| 2023 | 61.2 mm (2.4 in) |
| 2024 | 84.0 mm (3.3 in) |
| 2025 | 98.1 mm (3.9 in) |
| 2026 | 57.7 mm (2.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1941 | 25 days |
| 1942 | 24 days |
| 1943 | 15 days |
| 1944 | 19 days |
| 1945 | 17 days |
| 1946 | 25 days |
| 1947 | 32 days |
| 1948 | 12 days |
| 1949 | 17 days |
| 1950 | 15 days |
| 1951 | 22 days |
| 1952 | 22 days |
| 1953 | 20 days |
| 1954 | 19 days |
| 1955 | 22 days |
| 1956 | 17 days |
| 1957 | 24 days |
| 1958 | 20 days |
| 1959 | 25 days |
| 1960 | 14 days |
| 1961 | 16 days |
| 1962 | 14 days |
| 1963 | 32 days |
| 1964 | 32 days |
| 1965 | 18 days |
| 1966 | 21 days |
| 1967 | 24 days |
| 1968 | 22 days |
| 1969 | 18 days |
| 1970 | 17 days |
| 1971 | 16 days |
| 1972 | 13 days |
| 1973 | 26 days |
| 1974 | 19 days |
| 1975 | 17 days |
| 1976 | 16 days |
| 1977 | 30 days |
| 1978 | 15 days |
| 1979 | 12 days |
| 1980 | 18 days |
| 1981 | 24 days |
| 1982 | 17 days |
| 1983 | 14 days |
| 1984 | 14 days |
| 1985 | 31 days |
| 1986 | 34 days |
| 1987 | 20 days |
| 1988 | 32 days |
| 1989 | 22 days |
| 1990 | 20 days |
| 1991 | 23 days |
| 1992 | 13 days |
| 1993 | 20 days |
| 1994 | 18 days |
| 1995 | 33 days |
| 1996 | 18 days |
| 1997 | 16 days |
| 1998 | 25 days |
| 1999 | 22 days |
| 2000 | 43 days |
| 2001 | 38 days |
| 2002 | 18 days |
| 2003 | 23 days |
| 2004 | 17 days |
| 2005 | 28 days |
| 2006 | 39 days |
| 2007 | 34 days |
| 2008 | 23 days |
| 2009 | 15 days |
| 2010 | 20 days |
| 2011 | 15 days |
| 2012 | 16 days |
| 2013 | 15 days |
| 2014 | 14 days |
| 2015 | 18 days |
| 2016 | 28 days |
| 2017 | 24 days |
| 2018 | 19 days |
| 2019 | 27 days |
| 2020 | 14 days |
| 2021 | 16 days |
| 2022 | 11 days |
| 2023 | 14 days |
| 2024 | 39 days |
| 2025 | 18 days |
| 2026 | 20 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
84 years with a frostAcross 84 years with a frost, the median last spring frost at Washington Reagan Natl AP falls on 28 March and the median first autumn frost on 13 November, which leaves a median of 233 days between them.
In 1996 to 2025 the median growing season was 240 days. That is 17 days more than in 1942 to 1971.
Fitted over all years, the growing season changes by +3.0 days per decade at this station.
| Measure | Median, all years | Earliest period (1942 to 1971) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 28 March | 30 March | 24 March | 6 days earlier | -1.1 days per decade |
| First autumn frost | 13 November | 8 November | 18 November | 10 days later | +1.9 days per decade |
| Growing days | 233 days | 223 days | 240 days | 17 days more | +3.0 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
84 years, 1942 to 2025A day with at least 66.3 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 171.3 mm (6.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 66.3 mm (2.6 in) | |
| 5 years | 92.1 mm (3.6 in) | |
| 10 years | 110.0 mm (4.3 in) | |
| 25 years | 133.8 mm (5.3 in) | |
| 50 years | 152.3 mm (6.0 in) | |
| 100 years | 171.3 mm (6.7 in) | Longer than the 84 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 84 years of values from 1942 to 2025.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 155.2 mm (6.1 in) in 1972; 144.5 mm (5.7 in) in 1942; 138.2 mm (5.4 in) in 1955.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Washington Reagan Natl AP had a mean temperature of 15.7 C (60.2 F) and 1,089.1 mm (42.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Webbers Falls 5 WSW (United States, 1,650 km away), Spavinaw (United States, 1,608 km away) and Clarksville (United States, 1,500 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Webbers Falls 5 WSW | United States | 1,650 km (1,025 mi) | 15.6 C (60.0 F) | 1,107.8 mm (43.6 in) | 0.74 |
| Spavinaw | United States | 1,608 km (999 mi) | 15.9 C (60.7 F) | 1,092.5 mm (43.0 in) | 0.77 |
| Clarksville | United States | 1,500 km (932 mi) | 15.5 C (59.8 F) | 1,182.2 mm (46.5 in) | 0.79 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-16).