Francis E Walter Dam Threshold Days by Year (USC00363018)
16 fixed thresholds counted per year at Francis E Walter Dam (USC00363018): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Francis E Walter Dam Thresholds
- Francis E Walter Dam: days with a maximum temperature at or above 30 C (86 F) in 43 years, most in 2024 with 29.
- Francis E Walter Dam: days with a maximum temperature at or below 0 C (32 F) in 43 years, most in 1978 with 64.
- Francis E Walter Dam: nights with a minimum temperature at or below 0 C (32 F) in 41 years, most in 1989 with 190.
- Francis E Walter Dam: nights with a minimum temperature at or below -10 C (14 F) in 41 years, most in 1989 with 82.
- 16 fixed thresholds have at least one qualifying day at Francis E Walter Dam.
Days at or above 30 C (86 F)
43 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1964 | 16 | 11.3 |
| 1965 | 8 | 11.3 |
| 1966 | 14 | 11.3 |
| 1967 | 7 | 11.3 |
| 1974 | 6 | 7 |
| 1975 | 9 | 7 |
| 1976 | 3 | 7 |
| 1977 | 9 | 7 |
| 1978 | 7 | 7 |
| 1979 | 8 | 7 |
| 1980 | 23 | 12.8 |
| 1981 | 8 | 12.8 |
| 1982 | 7 | 12.8 |
| 1983 | 25 | 12.8 |
| 1984 | 7 | 12.8 |
| 1985 | 5 | 12.8 |
| 1986 | 2 | 12.8 |
| 1987 | 20 | 12.8 |
| 1988 | 25 | 12.8 |
| 1989 | 6 | 12.8 |
| 1990 | 1 | 5.8 |
| 1991 | 1 | 5.8 |
| 1992 | 1 | 5.8 |
| 1995 | 22 | 5.8 |
| 1997 | 4 | 5.8 |
| 2009 | 7 | 7 |
| 2010 | 25 | 14.1 |
| 2011 | 13 | 14.1 |
| 2012 | 23 | 14.1 |
| 2013 | 20 | 14.1 |
| 2014 | 3 | 14.1 |
| 2015 | 13 | 14.1 |
| 2016 | 16 | 14.1 |
| 2017 | 4 | 14.1 |
| 2018 | 16 | 14.1 |
| 2019 | 8 | 14.1 |
| 2020 | 6 | 13 |
| 2021 | 15 | 13 |
| 2022 | 11 | 13 |
| 2023 | 10 | 13 |
| 2024 | 29 | 13 |
| 2025 | 13 | 13 |
| 2026 | 7 | 13 |
| Year | First date | Last date |
|---|---|---|
| 1964 | 1964-05-20 | 1964-09-12 |
| 1965 | 1965-06-24 | 1965-08-18 |
| 1966 | 1966-06-24 | 1966-07-27 |
| 1967 | 1967-06-11 | 1967-06-22 |
| 1974 | 1974-06-11 | 1974-07-15 |
| 1975 | 1975-05-21 | 1975-08-27 |
| 1976 | 1976-04-19 | 1976-06-11 |
| 1977 | 1977-07-16 | 1977-09-03 |
| 1978 | 1978-06-28 | 1978-08-16 |
| 1979 | 1979-05-10 | 1979-08-31 |
| 1980 | 1980-05-24 | 1980-09-03 |
| 1981 | 1981-06-16 | 1981-07-20 |
| 1982 | 1982-07-09 | 1982-07-25 |
| 1983 | 1983-06-14 | 1983-09-21 |
| 1984 | 1984-06-08 | 1984-09-24 |
| 1985 | 1985-07-11 | 1985-08-17 |
| 1986 | 1986-07-07 | 1986-07-08 |
| 1987 | 1987-05-29 | 1987-08-18 |
| 1988 | 1988-05-31 | 1988-08-16 |
| 1989 | 1989-05-20 | 1989-07-11 |
| 1990 | 1990-07-05 | 1990-07-05 |
| 1991 | 1991-07-22 | 1991-07-22 |
| 1992 | 1992-07-10 | 1992-07-10 |
| 1995 | 1995-06-02 | 1995-09-01 |
| 1997 | 1997-07-16 | 1997-08-17 |
| 2009 | 2009-04-27 | 2009-08-21 |
| 2010 | 2010-05-02 | 2010-09-25 |
| 2011 | 2011-06-01 | 2011-07-24 |
| 2012 | 2012-05-29 | 2012-09-01 |
| 2013 | 2013-05-22 | 2013-09-12 |
| 2014 | 2014-06-18 | 2014-07-24 |
| 2015 | 2015-05-10 | 2015-09-09 |
| 2016 | 2016-05-28 | 2016-08-19 |
| 2017 | 2017-05-18 | 2017-09-26 |
| 2018 | 2018-05-04 | 2018-09-07 |
| 2019 | 2019-07-05 | 2019-07-31 |
| 2020 | 2020-07-07 | 2020-07-30 |
| 2021 | 2021-06-06 | 2021-08-28 |
| 2022 | 2022-05-22 | 2022-08-09 |
| 2023 | 2023-06-02 | 2023-09-08 |
| 2024 | 2024-05-22 | 2024-08-29 |
| 2025 | 2025-06-06 | 2025-08-13 |
| 2026 | 2026-05-19 | 2026-07-16 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 43 | 29 | 2024 | 7 |
| 35 C (95 F): Days | 6 | 1 | 1966 | 1 |
| 90 F (32.2 C): Days | 30 | 12 | 2024 | 3 |
| 0 C (32 F): Ice days (max | 43 | 64 | 1978 | 39 |
| 0 C (32 F): Frost days (min | 41 | 190 | 1989 | 100 |
| -10 C (14 F): Days with min | 41 | 82 | 1989 | 36 |
| -20 C (-4 F): Days with min | 35 | 16 | 1977 | 5 |
| -30 C (-22 F): Days with min | 5 | 3 | 1981 | 1 |
| 20 C (68 F): Tropical nights (min | 21 | 8 | 2013 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 37 | 64 | 2018 | 13 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 37 | 26 | 2018 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 22 | 6 | 1985 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 1 | 1983 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 39 | 8 | 1966 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 17 | 3 | 1983 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 0 | n/a | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.
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 (2026-10-12).