Norwich Public Utility Plt Threshold Days by Year (USC00065910)
16 fixed thresholds counted per year at Norwich Public Utility Plt (USC00065910): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Norwich Public Utility Plt Thresholds
- Norwich Public Utility Plt: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 1989 with 59.
- Norwich Public Utility Plt: days with 25 mm (0.98 in) or more of precipitation in 65 years, most in 1983 with 23.
- Norwich Public Utility Plt: days with 50 mm (1.97 in) or more of precipitation in 63 years, most in 1983 with 7.
- Norwich Public Utility Plt: days with a maximum temperature at or above 30 C (86 F) in 60 years, most in 1999 with 48.
- 16 fixed thresholds have at least one qualifying day at Norwich Public Utility Plt.
Days at or above 30 C (86 F)
60 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1957 | 33 | 30.7 |
| 1958 | 15 | 30.7 |
| 1959 | 44 | 30.7 |
| 1960 | 21 | 26.3 |
| 1961 | 41 | 26.3 |
| 1962 | 17 | 26.3 |
| 1963 | 31 | 26.3 |
| 1964 | 18 | 26.3 |
| 1965 | 23 | 26.3 |
| 1966 | 36 | 26.3 |
| 1967 | 23 | 26.3 |
| 1971 | 23 | 20.3 |
| 1972 | 20 | 20.3 |
| 1973 | 16 | 20.3 |
| 1974 | 14 | 20.3 |
| 1978 | 22 | 20.3 |
| 1979 | 27 | 20.3 |
| 1980 | 40 | 27.7 |
| 1981 | 22 | 27.7 |
| 1982 | 21 | 27.7 |
| 1983 | 44 | 27.7 |
| 1984 | 24 | 27.7 |
| 1985 | 14 | 27.7 |
| 1986 | 19 | 27.7 |
| 1987 | 31 | 27.7 |
| 1988 | 39 | 27.7 |
| 1989 | 23 | 27.7 |
| 1990 | 27 | 34 |
| 1991 | 46 | 34 |
| 1992 | 18 | 34 |
| 1993 | 40 | 34 |
| 1994 | 33 | 34 |
| 1995 | 37 | 34 |
| 1996 | 22 | 34 |
| 1997 | 32 | 34 |
| 1998 | 37 | 34 |
| 1999 | 48 | 34 |
| 2000 | 25 | 34.3 |
| 2001 | 38 | 34.3 |
| 2002 | 45 | 34.3 |
| 2003 | 29 | 34.3 |
| 2004 | 26 | 34.3 |
| 2005 | 34 | 34.3 |
| 2006 | 32 | 34.3 |
| 2007 | 45 | 34.3 |
| 2012 | 42 | 35.3 |
| 2013 | 30 | 35.3 |
| 2014 | 21 | 35.3 |
| 2015 | 37 | 35.3 |
| 2016 | 41 | 35.3 |
| 2017 | 30 | 35.3 |
| 2018 | 43 | 35.3 |
| 2019 | 38 | 35.3 |
| 2020 | 42 | 34.3 |
| 2021 | 29 | 34.3 |
| 2022 | 34 | 34.3 |
| 2023 | 34 | 34.3 |
| 2024 | 33 | 34.3 |
| 2025 | 32 | 34.3 |
| 2026 | 36 | 34.3 |
| Year | First date | Last date |
|---|---|---|
| 1957 | 1957-04-22 | 1957-08-27 |
| 1958 | 1958-07-01 | 1958-08-16 |
| 1959 | 1959-05-13 | 1959-10-05 |
| 1960 | 1960-06-02 | 1960-09-09 |
| 1961 | 1961-06-03 | 1961-09-24 |
| 1962 | 1962-05-20 | 1962-08-28 |
| 1963 | 1963-05-10 | 1963-10-15 |
| 1964 | 1964-04-19 | 1964-09-05 |
| 1965 | 1965-05-04 | 1965-09-23 |
| 1966 | 1966-06-05 | 1966-09-02 |
| 1967 | 1967-06-02 | 1967-10-05 |
| 1971 | 1971-06-04 | 1971-09-16 |
| 1972 | 1972-07-02 | 1972-08-30 |
| 1973 | 1973-06-05 | 1973-08-31 |
| 1974 | 1974-05-17 | 1974-09-13 |
| 1978 | 1978-05-20 | 1978-08-29 |
| 1979 | 1979-05-09 | 1979-09-06 |
| 1980 | 1980-05-23 | 1980-09-22 |
| 1981 | 1981-05-25 | 1981-08-11 |
| 1982 | 1982-05-27 | 1982-09-15 |
| 1983 | 1983-06-12 | 1983-09-20 |
| 1984 | 1984-06-07 | 1984-08-31 |
| 1985 | 1985-05-11 | 1985-09-08 |
| 1986 | 1986-05-18 | 1986-08-11 |
| 1987 | 1987-05-10 | 1987-09-10 |
| 1988 | 1988-05-29 | 1988-08-28 |
| 1989 | 1989-05-18 | 1989-09-11 |
| 1990 | 1990-04-27 | 1990-09-11 |
| 1991 | 1991-04-08 | 1991-09-17 |
| 1992 | 1992-05-21 | 1992-08-27 |
| 1993 | 1993-05-06 | 1993-09-06 |
| 1994 | 1994-05-23 | 1994-08-27 |
| 1995 | 1995-05-31 | 1995-09-06 |
| 1996 | 1996-05-19 | 1996-09-10 |
| 1997 | 1997-06-10 | 1997-10-06 |
| 1998 | 1998-05-15 | 1998-09-27 |
| 1999 | 1999-05-29 | 1999-09-04 |
| 2000 | 2000-05-08 | 2000-09-02 |
| 2001 | 2001-05-02 | 2001-09-14 |
| 2002 | 2002-04-17 | 2002-09-11 |
| 2003 | 2003-06-25 | 2003-08-28 |
| 2004 | 2004-05-12 | 2004-08-31 |
| 2005 | 2005-07-11 | 2005-09-14 |
| 2006 | 2006-05-31 | 2006-08-21 |
| 2007 | 2007-05-25 | 2007-09-27 |
| 2012 | 2012-04-17 | 2012-09-02 |
| 2013 | 2013-05-22 | 2013-09-12 |
| 2014 | 2014-05-28 | 2014-09-07 |
| 2015 | 2015-05-18 | 2015-09-18 |
| 2016 | 2016-05-26 | 2016-09-15 |
| 2017 | 2017-05-18 | 2017-09-28 |
| 2018 | 2018-05-03 | 2018-09-17 |
| 2019 | 2019-06-25 | 2019-10-03 |
| 2020 | 2020-06-21 | 2020-09-09 |
| 2021 | 2021-05-24 | 2021-08-28 |
| 2022 | 2022-05-22 | 2022-08-27 |
| 2023 | 2023-04-14 | 2023-10-05 |
| 2024 | 2024-06-04 | 2024-08-29 |
| 2025 | 2025-06-06 | 2025-08-18 |
| 2026 | 2026-05-18 | 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 | 60 | 48 | 1999 | 36 |
| 35 C (95 F): Days | 44 | 9 | 2002 | 3 |
| 90 F (32.2 C): Days | 60 | 29 | 2002 | 14 |
| 100 F (37.8 C): Days | 10 | 2 | 1991 | 1 |
| 0 C (32 F): Ice days (max | 60 | 39 | 2003 | 19 |
| 0 C (32 F): Frost days (min | 57 | 144 | 1978 | 84 |
| -10 C (14 F): Days with min | 57 | 42 | 1989 | 25 |
| -20 C (-4 F): Days with min | 24 | 7 | 1961 | 2 |
| 20 C (68 F): Tropical nights (min | 57 | 42 | 2018 | 16 |
| 25 C (77 F): Days with min | 9 | 4 | 2018 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 65 | 59 | 1989 | 30 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 65 | 23 | 1983 | 8 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 63 | 7 | 1983 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 19 | 2 | 2004 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 27 | 6 | 1996 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 7 | 2 | 2018 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.
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).