Wallops Is Nasa Test Facility Threshold Days by Year (USW00093739)
15 fixed thresholds counted per year at Wallops Is Nasa Test Facility (USW00093739): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Wallops Is Nasa Test Facility Thresholds
- Wallops Is Nasa Test Facility: days with a maximum temperature at or above 30 C (86 F) in 60 years, most in 1991 with 67.
- Wallops Is Nasa Test Facility: days with a maximum temperature at or above 90 F (32.2 C) in 60 years, most in 2010 with 35.
- Wallops Is Nasa Test Facility: nights with a minimum temperature at or below 0 C (32 F) in 60 years, most in 1969 with 90.
- Wallops Is Nasa Test Facility: nights with a minimum temperature at or above 20 C (68 F) in 60 years, most in 2018 with 110.
- 15 fixed thresholds have at least one qualifying day at Wallops Is Nasa Test Facility.
Days at or above 30 C (86 F)
60 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1967 | 4 | 18 |
| 1968 | 27 | 18 |
| 1969 | 23 | 18 |
| 1970 | 18 | 21.4 |
| 1971 | 15 | 21.4 |
| 1972 | 15 | 21.4 |
| 1973 | 26 | 21.4 |
| 1974 | 13 | 21.4 |
| 1975 | 28 | 21.4 |
| 1976 | 19 | 21.4 |
| 1977 | 37 | 21.4 |
| 1978 | 24 | 21.4 |
| 1979 | 19 | 21.4 |
| 1980 | 30 | 35.3 |
| 1981 | 26 | 35.3 |
| 1982 | 14 | 35.3 |
| 1983 | 28 | 35.3 |
| 1984 | 35 | 35.3 |
| 1985 | 33 | 35.3 |
| 1986 | 47 | 35.3 |
| 1987 | 51 | 35.3 |
| 1988 | 50 | 35.3 |
| 1989 | 39 | 35.3 |
| 1990 | 47 | 40.9 |
| 1991 | 67 | 40.9 |
| 1992 | 32 | 40.9 |
| 1993 | 48 | 40.9 |
| 1994 | 37 | 40.9 |
| 1995 | 45 | 40.9 |
| 1996 | 22 | 40.9 |
| 1997 | 30 | 40.9 |
| 1998 | 44 | 40.9 |
| 1999 | 37 | 40.9 |
| 2000 | 29 | 37.1 |
| 2001 | 24 | 37.1 |
| 2002 | 58 | 37.1 |
| 2003 | 28 | 37.1 |
| 2004 | 32 | 37.1 |
| 2005 | 45 | 37.1 |
| 2006 | 40 | 37.1 |
| 2007 | 37 | 37.1 |
| 2008 | 46 | 37.1 |
| 2009 | 32 | 37.1 |
| 2010 | 66 | 53.2 |
| 2011 | 66 | 53.2 |
| 2012 | 51 | 53.2 |
| 2013 | 54 | 53.2 |
| 2014 | 30 | 53.2 |
| 2015 | 41 | 53.2 |
| 2016 | 59 | 53.2 |
| 2017 | 35 | 53.2 |
| 2018 | 67 | 53.2 |
| 2019 | 63 | 53.2 |
| 2020 | 51 | 48 |
| 2021 | 49 | 48 |
| 2022 | 61 | 48 |
| 2023 | 46 | 48 |
| 2024 | 45 | 48 |
| 2025 | 34 | 48 |
| 2026 | 50 | 48 |
| Year | First date | Last date |
|---|---|---|
| 1967 | 1967-04-03 | 1967-07-25 |
| 1968 | 1968-06-26 | 1968-09-05 |
| 1969 | 1969-05-29 | 1969-09-07 |
| 1970 | 1970-05-09 | 1970-09-27 |
| 1971 | 1971-06-07 | 1971-08-23 |
| 1972 | 1972-04-20 | 1972-09-14 |
| 1973 | 1973-05-29 | 1973-10-05 |
| 1974 | 1974-04-29 | 1974-08-31 |
| 1975 | 1975-05-27 | 1975-08-30 |
| 1976 | 1976-04-16 | 1976-09-08 |
| 1977 | 1977-04-12 | 1977-10-02 |
| 1978 | 1978-05-21 | 1978-09-19 |
| 1979 | 1979-06-18 | 1979-09-07 |
| 1980 | 1980-05-13 | 1980-09-23 |
| 1981 | 1981-04-29 | 1981-09-14 |
| 1982 | 1982-05-31 | 1982-09-03 |
| 1983 | 1983-06-13 | 1983-09-12 |
| 1984 | 1984-05-19 | 1984-09-24 |
| 1985 | 1985-04-19 | 1985-10-15 |
| 1986 | 1986-05-06 | 1986-10-04 |
| 1987 | 1987-05-18 | 1987-09-17 |
| 1988 | 1988-05-30 | 1988-09-23 |
| 1989 | 1989-05-26 | 1989-09-15 |
| 1990 | 1990-03-13 | 1990-09-11 |
| 1991 | 1991-05-13 | 1991-09-19 |
| 1992 | 1992-05-22 | 1992-09-18 |
| 1993 | 1993-06-09 | 1993-09-26 |
| 1994 | 1994-05-23 | 1994-09-17 |
| 1995 | 1995-06-08 | 1995-09-14 |
| 1996 | 1996-05-11 | 1996-09-10 |
| 1997 | 1997-05-19 | 1997-10-06 |
| 1998 | 1998-05-19 | 1998-09-28 |
| 1999 | 1999-05-29 | 1999-08-29 |
| 2000 | 2000-05-06 | 2000-10-04 |
| 2001 | 2001-06-12 | 2001-08-17 |
| 2002 | 2002-04-17 | 2002-10-05 |
| 2003 | 2003-06-12 | 2003-09-02 |
| 2004 | 2004-05-07 | 2004-09-22 |
| 2005 | 2005-06-08 | 2005-09-23 |
| 2006 | 2006-05-26 | 2006-08-29 |
| 2007 | 2007-05-28 | 2007-10-09 |
| 2008 | 2008-06-07 | 2008-09-15 |
| 2009 | 2009-04-26 | 2009-09-24 |
| 2010 | 2010-04-06 | 2010-09-25 |
| 2011 | 2011-05-24 | 2011-09-15 |
| 2012 | 2012-04-16 | 2012-10-04 |
| 2013 | 2013-04-10 | 2013-10-05 |
| 2014 | 2014-05-13 | 2014-09-11 |
| 2015 | 2015-05-12 | 2015-09-16 |
| 2016 | 2016-05-25 | 2016-09-14 |
| 2017 | 2017-04-29 | 2017-08-23 |
| 2018 | 2018-05-02 | 2018-10-07 |
| 2019 | 2019-05-02 | 2019-10-02 |
| 2020 | 2020-06-03 | 2020-09-04 |
| 2021 | 2021-05-22 | 2021-09-16 |
| 2022 | 2022-05-21 | 2022-09-22 |
| 2023 | 2023-06-14 | 2023-09-14 |
| 2024 | 2024-04-15 | 2024-09-28 |
| 2025 | 2025-04-06 | 2025-08-17 |
| 2026 | 2026-04-15 | 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 | 60 | 67 | 1991 | 50 |
| 35 C (95 F): Days | 39 | 13 | 2010 | 4 |
| 90 F (32.2 C): Days | 60 | 35 | 2010 | 17 |
| 100 F (37.8 C): Days | 7 | 3 | 2012 | 1 |
| 0 C (32 F): Ice days (max | 56 | 24 | 1977 | 9 |
| 0 C (32 F): Frost days (min | 60 | 90 | 1969 | 46 |
| -10 C (14 F): Days with min | 46 | 9 | 1979 | 6 |
| 20 C (68 F): Tropical nights (min | 60 | 110 | 2018 | 75 |
| 25 C (77 F): Days with min | 44 | 17 | 1979 | 6 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 60 | 46 | 1996 | 26 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 60 | 21 | 1979 | 9 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 50 | 7 | 2012 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 14 | 2 | 1989 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 20 | 4 | 2010 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 2 | 2010 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.
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).