Bourne Threshold Days by Year (USS0018E05S)
10 fixed thresholds counted per year at Bourne (USS0018E05S): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Bourne Thresholds
- Bourne: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1983 with 44.
- Bourne: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1986 with 8.
- Bourne: days with a maximum temperature at or below 0 C (32 F) in 37 years, most in 2019 with 68.
- Bourne: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 2011 with 207.
- 10 fixed thresholds have at least one qualifying day at Bourne.
Days at or above 30 C (86 F)
29 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1990 | 4 | 3 |
| 1992 | 4 | 3 |
| 1994 | 3 | 3 |
| 1996 | 1 | 3 |
| 1998 | 5 | 3 |
| 1999 | 1 | 3 |
| 2000 | 2 | 3.2 |
| 2001 | 2 | 3.2 |
| 2002 | 4 | 3.2 |
| 2003 | 7 | 3.2 |
| 2005 | 2 | 3.2 |
| 2006 | 3 | 3.2 |
| 2007 | 4 | 3.2 |
| 2008 | 2 | 3.2 |
| 2009 | 3 | 3.2 |
| 2012 | 1 | 3.4 |
| 2013 | 2 | 3.4 |
| 2014 | 1 | 3.4 |
| 2015 | 6 | 3.4 |
| 2016 | 1 | 3.4 |
| 2017 | 10 | 3.4 |
| 2018 | 3 | 3.4 |
| 2020 | 5 | 6.7 |
| 2021 | 8 | 6.7 |
| 2022 | 11 | 6.7 |
| 2023 | 2 | 6.7 |
| 2024 | 10 | 6.7 |
| 2025 | 5 | 6.7 |
| 2026 | 6 | 6.7 |
| Year | First date | Last date |
|---|---|---|
| 1990 | 1990-08-05 | 1990-08-08 |
| 1992 | 1992-07-31 | 1992-08-14 |
| 1994 | 1994-07-21 | 1994-08-14 |
| 1996 | 1996-08-10 | 1996-08-10 |
| 1998 | 1998-07-17 | 1998-09-04 |
| 1999 | 1999-07-28 | 1999-07-28 |
| 2000 | 2000-07-29 | 2000-07-30 |
| 2001 | 2001-07-03 | 2001-07-04 |
| 2002 | 2002-07-10 | 2002-07-13 |
| 2003 | 2003-07-18 | 2003-07-30 |
| 2005 | 2005-08-05 | 2005-08-06 |
| 2006 | 2006-07-21 | 2006-07-23 |
| 2007 | 2007-07-05 | 2007-08-01 |
| 2008 | 2008-08-16 | 2008-08-17 |
| 2009 | 2009-07-18 | 2009-08-20 |
| 2012 | 2012-08-18 | 2012-08-18 |
| 2013 | 2013-07-01 | 2013-07-02 |
| 2014 | 2014-07-13 | 2014-07-13 |
| 2015 | 2015-06-26 | 2015-08-02 |
| 2016 | 2016-07-29 | 2016-07-29 |
| 2017 | 2017-07-08 | 2017-09-05 |
| 2018 | 2018-08-08 | 2018-08-10 |
| 2020 | 2020-07-30 | 2020-09-04 |
| 2021 | 2021-06-28 | 2021-08-15 |
| 2022 | 2022-07-28 | 2022-09-06 |
| 2023 | 2023-08-15 | 2023-08-16 |
| 2024 | 2024-07-08 | 2024-08-02 |
| 2025 | 2025-07-08 | 2025-09-03 |
| 2026 | 2026-07-24 | 2026-08-21 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 29 | 11 | 2022 | 6 |
| 90 F (32.2 C): Days | 9 | 3 | 2002 | 2 |
| 0 C (32 F): Ice days (max | 37 | 68 | 2019 | 15 |
| 0 C (32 F): Frost days (min | 34 | 207 | 2011 | 92 |
| -10 C (14 F): Days with min | 34 | 45 | 1994 | 4 |
| -20 C (-4 F): Days with min | 12 | 4 | 1998 | 1 |
| 20 C (68 F): Tropical nights (min | 1 | 2 | 2017 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 48 | 44 | 1983 | 13 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 46 | 8 | 1986 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 1 | 1 | 2005 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1990.
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).