Built 2026-10-19 (19 October 2026)

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.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Bourne Days per year at Bourne with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 11 in 2022. 0510151990: 41992: 41994: 31996: 11998: 51999: 12000: 22001: 22002: 42003: 72005: 22006: 32007: 42008: 22009: 32012: 12013: 22014: 12015: 62016: 12017: 102018: 32020: 52021: 82022: 112023: 22024: 102025: 52026: 61990199620002003200720122015201820222025
Days per year at Bourne with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 11 in 2022.
Days at or above 30 C (86 F) per year at Bourne
YearDaysDecade average
199043
199243
199433
199613
199853
199913
200023.2
200123.2
200243.2
200373.2
200523.2
200633.2
200743.2
200823.2
200933.2
201213.4
201323.4
201413.4
201563.4
201613.4
2017103.4
201833.4
202056.7
202186.7
2022116.7
202326.7
2024106.7
202556.7
202666.7
First to last qualifying date each year at Bourne For each year, a bar from the first to the last day at Bourne meeting 30 C (86 F). 1990: 5 August 1990 to 8 August 19901992: 31 July 1992 to 14 August 19921994: 21 July 1994 to 14 August 19941996: 10 August 1996 to 10 August 19961998: 17 July 1998 to 4 September 19981999: 28 July 1999 to 28 July 19992000: 29 July 2000 to 30 July 20002001: 3 July 2001 to 4 July 20012002: 10 July 2002 to 13 July 20022003: 18 July 2003 to 30 July 20032005: 5 August 2005 to 6 August 20052006: 21 July 2006 to 23 July 20062007: 5 July 2007 to 1 August 20072008: 16 August 2008 to 17 August 20082009: 18 July 2009 to 20 August 20092012: 18 August 2012 to 18 August 20122013: 1 July 2013 to 2 July 20132014: 13 July 2014 to 13 July 20142015: 26 June 2015 to 2 August 20152016: 29 July 2016 to 29 July 20162017: 8 July 2017 to 5 September 20172018: 8 August 2018 to 10 August 20182020: 30 July 2020 to 4 September 20202021: 28 June 2021 to 15 August 20212022: 28 July 2022 to 6 September 20222023: 15 August 2023 to 16 August 20232024: 8 July 2024 to 2 August 20242025: 8 July 2025 to 3 September 20252026: 24 July 2026 to 21 August 202619901998200220072013201720222026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bourne meeting 30 C (86 F).
First to last qualifying date each year at Bourne
YearFirst dateLast date
19901990-08-051990-08-08
19921992-07-311992-08-14
19941994-07-211994-08-14
19961996-08-101996-08-10
19981998-07-171998-09-04
19991999-07-281999-07-28
20002000-07-292000-07-30
20012001-07-032001-07-04
20022002-07-102002-07-13
20032003-07-182003-07-30
20052005-08-052005-08-06
20062006-07-212006-07-23
20072007-07-052007-08-01
20082008-08-162008-08-17
20092009-07-182009-08-20
20122012-08-182012-08-18
20132013-07-012013-07-02
20142014-07-132014-07-13
20152015-06-262015-08-02
20162016-07-292016-07-29
20172017-07-082017-09-05
20182018-08-082018-08-10
20202020-07-302020-09-04
20212021-06-282021-08-15
20222022-07-282022-09-06
20232023-08-152023-08-16
20242024-07-082024-08-02
20252025-07-082025-09-03
20262026-07-242026-08-21

Every Fixed Threshold

Fixed thresholds at Bourne
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days291120226
90 F (32.2 C): Days9320022
0 C (32 F): Ice days (max3768201915
0 C (32 F): Frost days (min34207201192
-10 C (14 F): Days with min344519944
-20 C (-4 F): Days with min12419981
20 C (68 F): Tropical nights (min1220172
10 mm (0.39 in): Days with 10 mm or more rain4844198313
25 mm (0.98 in): Days with 25 mm or more rain46819861
50 mm (1.97 in): Days with 50 mm or more rain1120051

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

  • Data for Bourne threshold days by year: CSV or JSON. Field meanings are on the data page.

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).