Lowell Wwtp Threshold Days by Year (USC00125174)
18 fixed thresholds counted per year at Lowell Wwtp (USC00125174): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Lowell Wwtp Thresholds
- Lowell Wwtp: days with 10 mm (0.39 in) or more of precipitation in 63 years, most in 1965 with 46.
- Lowell Wwtp: days with 25 mm (0.98 in) or more of precipitation in 63 years, most in 1970 with 16.
- Lowell Wwtp: days with a maximum temperature at or above 30 C (86 F) in 61 years, most in 2005 with 77.
- Lowell Wwtp: days with a maximum temperature at or above 90 F (32.2 C) in 61 years, most in 1988 with 56.
- 18 fixed thresholds have at least one qualifying day at Lowell Wwtp.
Days at or above 30 C (86 F)
61 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1964 | 61 | 42.5 |
| 1965 | 33 | 42.5 |
| 1966 | 56 | 42.5 |
| 1967 | 31 | 42.5 |
| 1968 | 34 | 42.5 |
| 1969 | 40 | 42.5 |
| 1970 | 43 | 38.9 |
| 1971 | 47 | 38.9 |
| 1972 | 34 | 38.9 |
| 1973 | 33 | 38.9 |
| 1974 | 27 | 38.9 |
| 1975 | 43 | 38.9 |
| 1977 | 42 | 38.9 |
| 1978 | 49 | 38.9 |
| 1979 | 32 | 38.9 |
| 1980 | 46 | 43 |
| 1981 | 20 | 43 |
| 1982 | 28 | 43 |
| 1983 | 66 | 43 |
| 1984 | 50 | 43 |
| 1985 | 33 | 43 |
| 1986 | 38 | 43 |
| 1987 | 53 | 43 |
| 1988 | 72 | 43 |
| 1989 | 24 | 43 |
| 1990 | 32 | 38 |
| 1991 | 69 | 38 |
| 1992 | 19 | 38 |
| 1993 | 27 | 38 |
| 1994 | 41 | 38 |
| 1995 | 53 | 38 |
| 1996 | 25 | 38 |
| 1997 | 29 | 38 |
| 1998 | 41 | 38 |
| 1999 | 44 | 38 |
| 2000 | 28 | 37.4 |
| 2001 | 47 | 37.4 |
| 2002 | 53 | 37.4 |
| 2003 | 25 | 37.4 |
| 2004 | 28 | 37.4 |
| 2005 | 77 | 37.4 |
| 2006 | 28 | 37.4 |
| 2007 | 53 | 37.4 |
| 2008 | 22 | 37.4 |
| 2009 | 13 | 37.4 |
| 2010 | 45 | 38 |
| 2011 | 44 | 38 |
| 2012 | 50 | 38 |
| 2013 | 30 | 38 |
| 2014 | 14 | 38 |
| 2015 | 27 | 38 |
| 2016 | 46 | 38 |
| 2018 | 54 | 38 |
| 2019 | 32 | 38 |
| 2020 | 41 | 37.6 |
| 2021 | 49 | 37.6 |
| 2022 | 24 | 37.6 |
| 2023 | 41 | 37.6 |
| 2024 | 42 | 37.6 |
| 2025 | 46 | 37.6 |
| 2026 | 20 | 37.6 |
| Year | First date | Last date |
|---|---|---|
| 1964 | 1964-05-07 | 1964-09-21 |
| 1965 | 1965-05-14 | 1965-09-20 |
| 1966 | 1966-05-27 | 1966-09-13 |
| 1967 | 1967-05-25 | 1967-10-04 |
| 1968 | 1968-06-06 | 1968-09-03 |
| 1969 | 1969-05-28 | 1969-09-01 |
| 1970 | 1970-05-21 | 1970-09-22 |
| 1971 | 1971-05-18 | 1971-10-03 |
| 1972 | 1972-05-19 | 1972-09-18 |
| 1973 | 1973-06-11 | 1973-09-04 |
| 1974 | 1974-06-05 | 1974-08-27 |
| 1975 | 1975-05-19 | 1975-09-04 |
| 1977 | 1977-04-19 | 1977-09-01 |
| 1978 | 1978-05-27 | 1978-09-21 |
| 1979 | 1979-05-09 | 1979-09-12 |
| 1980 | 1980-04-23 | 1980-09-23 |
| 1981 | 1981-06-08 | 1981-09-14 |
| 1982 | 1982-05-05 | 1982-10-06 |
| 1983 | 1983-06-10 | 1983-09-19 |
| 1984 | 1984-05-18 | 1984-09-21 |
| 1985 | 1985-04-21 | 1985-09-20 |
| 1986 | 1986-04-25 | 1986-09-29 |
| 1987 | 1987-04-20 | 1987-09-27 |
| 1988 | 1988-05-15 | 1988-09-22 |
| 1989 | 1989-05-30 | 1989-10-14 |
| 1990 | 1990-04-24 | 1990-10-05 |
| 1991 | 1991-05-11 | 1991-09-15 |
| 1992 | 1992-05-01 | 1992-09-15 |
| 1993 | 1993-05-08 | 1993-08-30 |
| 1994 | 1994-04-26 | 1994-09-20 |
| 1995 | 1995-06-06 | 1995-09-06 |
| 1996 | 1996-05-17 | 1996-09-03 |
| 1997 | 1997-06-19 | 1997-10-05 |
| 1998 | 1998-05-14 | 1998-09-27 |
| 1999 | 1999-05-29 | 1999-09-27 |
| 2000 | 2000-05-07 | 2000-09-20 |
| 2001 | 2001-05-01 | 2001-09-08 |
| 2002 | 2002-04-16 | 2002-10-01 |
| 2003 | 2003-04-16 | 2003-09-15 |
| 2004 | 2004-04-19 | 2004-09-24 |
| 2005 | 2005-05-11 | 2005-10-06 |
| 2006 | 2006-05-28 | 2006-10-03 |
| 2007 | 2007-05-02 | 2007-10-09 |
| 2008 | 2008-06-03 | 2008-09-03 |
| 2009 | 2009-06-20 | 2009-08-17 |
| 2010 | 2010-05-24 | 2010-10-10 |
| 2011 | 2011-05-11 | 2011-09-04 |
| 2012 | 2012-05-04 | 2012-09-05 |
| 2013 | 2013-05-15 | 2013-09-13 |
| 2014 | 2014-05-08 | 2014-09-06 |
| 2015 | 2015-05-30 | 2015-09-09 |
| 2016 | 2016-05-25 | 2016-09-26 |
| 2018 | 2018-05-03 | 2018-10-09 |
| 2019 | 2019-06-27 | 2019-10-02 |
| 2020 | 2020-05-25 | 2020-09-04 |
| 2021 | 2021-05-23 | 2021-09-28 |
| 2022 | 2022-05-11 | 2022-09-22 |
| 2023 | 2023-05-08 | 2023-10-05 |
| 2024 | 2024-05-21 | 2024-09-22 |
| 2025 | 2025-05-16 | 2025-10-05 |
| 2026 | 2026-05-18 | 2026-07-27 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 61 | 77 | 2005 | 20 |
| 35 C (95 F): Days | 39 | 30 | 1988 | 1 |
| 40 C (104 F): Days | 1 | 3 | 1988 | 3 |
| 90 F (32.2 C): Days | 61 | 56 | 1988 | 12 |
| 100 F (37.8 C): Days | 8 | 13 | 1988 | 1 |
| 0 C (32 F): Ice days (max | 61 | 73 | 2014 | 31 |
| 0 C (32 F): Frost days (min | 61 | 170 | 1978 | 77 |
| -10 C (14 F): Days with min | 61 | 71 | 1978 | 24 |
| -20 C (-4 F): Days with min | 55 | 29 | 1979 | 8 |
| -30 C (-22 F): Days with min | 10 | 3 | 1984 | 3 |
| 20 C (68 F): Tropical nights (min | 61 | 34 | 2010 | 16 |
| 25 C (77 F): Days with min | 5 | 1 | 1989 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 63 | 46 | 1965 | 21 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 63 | 16 | 1970 | 8 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 57 | 6 | 2008 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 2 | 1968 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 38 | 7 | 1979 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 6 | 1 | 1967 | 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).