Underwood Threshold Days by Year
17 fixed thresholds counted per year at Underwood (USC00328872): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Underwood Thresholds
- Underwood: nights with a minimum temperature at or below 0 C (32 F) in 65 years, most in 2002 with 212.
- Underwood: nights with a minimum temperature at or below -10 C (14 F) in 65 years, most in 1955 with 130.
- Underwood: nights with a minimum temperature at or below -20 C (-4 F) in 65 years, most in 1978 with 61.
- Underwood: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 2010 with 22.
- 17 fixed thresholds have at least one qualifying day at Underwood.
Days at or above 30 C (86 F)
63 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1955 | 39 | 29 |
| 1956 | 19 | 29 |
| 1957 | 27 | 29 |
| 1958 | 31 | 29 |
| 1960 | 43 | 32.1 |
| 1961 | 63 | 32.1 |
| 1962 | 17 | 32.1 |
| 1963 | 32 | 32.1 |
| 1964 | 30 | 32.1 |
| 1965 | 11 | 32.1 |
| 1966 | 35 | 32.1 |
| 1967 | 34 | 32.1 |
| 1968 | 22 | 32.1 |
| 1969 | 34 | 32.1 |
| 1970 | 43 | 34.1 |
| 1971 | 30 | 34.1 |
| 1972 | 34 | 34.1 |
| 1973 | 32 | 34.1 |
| 1974 | 37 | 34.1 |
| 1975 | 26 | 34.1 |
| 1976 | 42 | 34.1 |
| 1977 | 26 | 34.1 |
| 1978 | 39 | 34.1 |
| 1979 | 32 | 34.1 |
| 1980 | 43 | 42.3 |
| 1985 | 27 | 42.3 |
| 1986 | 26 | 42.3 |
| 1987 | 41 | 42.3 |
| 1988 | 67 | 42.3 |
| 1989 | 50 | 42.3 |
| 1990 | 47 | 29.2 |
| 1991 | 32 | 29.2 |
| 1992 | 30 | 29.2 |
| 1993 | 11 | 29.2 |
| 1994 | 31 | 29.2 |
| 1995 | 31 | 29.2 |
| 1996 | 22 | 29.2 |
| 1997 | 45 | 29.2 |
| 1999 | 14 | 29.2 |
| 2000 | 23 | 32.2 |
| 2001 | 37 | 32.2 |
| 2002 | 36 | 32.2 |
| 2003 | 40 | 32.2 |
| 2004 | 19 | 32.2 |
| 2005 | 39 | 32.2 |
| 2006 | 43 | 32.2 |
| 2007 | 37 | 32.2 |
| 2008 | 33 | 32.2 |
| 2009 | 15 | 32.2 |
| 2010 | 21 | 27.6 |
| 2012 | 32 | 27.6 |
| 2014 | 17 | 27.6 |
| 2015 | 33 | 27.6 |
| 2016 | 34 | 27.6 |
| 2018 | 36 | 27.6 |
| 2019 | 20 | 27.6 |
| 2020 | 29 | 33.1 |
| 2021 | 51 | 33.1 |
| 2022 | 34 | 33.1 |
| 2023 | 25 | 33.1 |
| 2024 | 28 | 33.1 |
| 2025 | 24 | 33.1 |
| 2026 | 41 | 33.1 |
| Year | First date | Last date |
|---|---|---|
| 1955 | 1955-05-03 | 1955-10-09 |
| 1956 | 1956-05-22 | 1956-09-27 |
| 1957 | 1957-07-02 | 1957-10-03 |
| 1958 | 1958-05-12 | 1958-10-14 |
| 1960 | 1960-05-22 | 1960-09-20 |
| 1961 | 1961-05-30 | 1961-08-31 |
| 1962 | 1962-04-24 | 1962-09-07 |
| 1963 | 1963-05-30 | 1963-10-04 |
| 1964 | 1964-05-20 | 1964-09-01 |
| 1965 | 1965-07-15 | 1965-08-16 |
| 1966 | 1966-05-21 | 1966-09-12 |
| 1967 | 1967-05-22 | 1967-09-11 |
| 1968 | 1968-06-02 | 1968-09-14 |
| 1969 | 1969-05-26 | 1969-09-13 |
| 1970 | 1970-05-17 | 1970-09-06 |
| 1971 | 1971-06-13 | 1971-09-03 |
| 1972 | 1972-05-16 | 1972-09-19 |
| 1973 | 1973-06-01 | 1973-08-31 |
| 1974 | 1974-06-03 | 1974-08-24 |
| 1975 | 1975-06-24 | 1975-08-28 |
| 1976 | 1976-06-02 | 1976-09-17 |
| 1977 | 1977-04-09 | 1977-08-09 |
| 1978 | 1978-05-24 | 1978-09-11 |
| 1979 | 1979-05-16 | 1979-09-17 |
| 1980 | 1980-04-18 | 1980-09-08 |
| 1985 | 1985-05-03 | 1985-08-08 |
| 1986 | 1986-05-04 | 1986-08-25 |
| 1987 | 1987-04-18 | 1987-09-14 |
| 1988 | 1988-05-27 | 1988-08-30 |
| 1989 | 1989-06-06 | 1989-10-01 |
| 1990 | 1990-04-21 | 1990-09-26 |
| 1991 | 1991-06-11 | 1991-09-08 |
| 1992 | 1992-05-06 | 1992-10-02 |
| 1993 | 1993-05-13 | 1993-08-25 |
| 1994 | 1994-05-17 | 1994-09-10 |
| 1995 | 1995-06-13 | 1995-09-05 |
| 1996 | 1996-06-09 | 1996-09-05 |
| 1997 | 1997-05-31 | 1997-10-03 |
| 1999 | 1999-05-29 | 1999-09-01 |
| 2000 | 2000-06-08 | 2000-09-18 |
| 2001 | 2001-04-29 | 2001-09-06 |
| 2002 | 2002-05-29 | 2002-09-18 |
| 2003 | 2003-05-30 | 2003-09-09 |
| 2004 | 2004-06-30 | 2004-09-20 |
| 2005 | 2005-06-19 | 2005-10-02 |
| 2006 | 2006-05-19 | 2006-09-14 |
| 2007 | 2007-05-19 | 2007-09-30 |
| 2008 | 2008-06-27 | 2008-09-19 |
| 2009 | 2009-06-21 | 2009-09-20 |
| 2010 | 2010-07-01 | 2010-08-28 |
| 2012 | 2012-04-25 | 2012-09-11 |
| 2014 | 2014-05-24 | 2014-09-27 |
| 2015 | 2015-06-09 | 2015-09-14 |
| 2016 | 2016-05-06 | 2016-09-02 |
| 2018 | 2018-05-17 | 2018-08-31 |
| 2019 | 2019-06-04 | 2019-09-17 |
| 2020 | 2020-06-15 | 2020-09-03 |
| 2021 | 2021-06-03 | 2021-09-29 |
| 2022 | 2022-06-19 | 2022-09-20 |
| 2023 | 2023-05-24 | 2023-09-05 |
| 2024 | 2024-06-16 | 2024-09-30 |
| 2025 | 2025-05-11 | 2025-09-13 |
| 2026 | 2026-05-26 | 2026-09-11 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 63 | 67 | 1988 | 41 |
| 35 C (95 F): Days | 60 | 34 | 1988 | 13 |
| 40 C (104 F): Days | 7 | 2 | 1988 | 3 |
| 90 F (32.2 C): Days | 63 | 52 | 1988 | 28 |
| 100 F (37.8 C): Days | 32 | 11 | 1988 | 5 |
| 0 C (32 F): Ice days (max | 63 | 118 | 1955 | 45 |
| 0 C (32 F): Frost days (min | 65 | 212 | 2002 | 115 |
| -10 C (14 F): Days with min | 65 | 130 | 1955 | 45 |
| -20 C (-4 F): Days with min | 65 | 61 | 1978 | 16 |
| -30 C (-22 F): Days with min | 57 | 13 | 1996 | 4 |
| 20 C (68 F): Tropical nights (min | 45 | 12 | 1988 | 5 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 65 | 22 | 2010 | 11 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 64 | 6 | 1972 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 22 | 2 | 1962 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 43 | 9 | 1996 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 8 | 3 | 2022 | 3 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 2 | 1 | 1997 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1955.
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). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-16).