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Data as of 2026-10-16
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Built 2026-10-18 (18 October 2026)

Ouessant Threshold Days by Year

4 fixed thresholds counted per year at Ouessant (FRM00007100): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ouessant Thresholds

  • Ouessant: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 2014 with 31.
  • Ouessant: days with 25 mm (0.98 in) or more of precipitation in 20 years, most in 2012 with 5.
  • Ouessant: days with 50 mm (1.97 in) or more of precipitation in 4 years, most in 1977 with 1.
  • 4 fixed thresholds have at least one qualifying day at Ouessant.
27 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ouessant Days per year at Ouessant with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 2014. 0102030401973: 101974: 151975: 151976: 121977: 101978: 141979: 131980: 101981: 121993: 182005: 132006: 242007: 162008: 242009: 212011: 112012: 212013: 212014: 312015: 192016: 212018: 152019: 152021: 152022: 122023: 142026: 3197319761979199320072011201420182022
Days per year at Ouessant with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 2014.
Days with 10 mm (0.39 in) or more of precipitation per year at Ouessant
YearDaysDecade average
19731012.7
19741512.7
19751512.7
19761212.7
19771012.7
19781412.7
19791312.7
19801011
19811211
19931818
20051319.6
20062419.6
20071619.6
20082419.6
20092119.6
20111119.3
20122119.3
20132119.3
20143119.3
20151919.3
20162119.3
20181519.3
20191519.3
20211511
20221211
20231411
2026311
First to last qualifying date each year at Ouessant For each year, a bar from the first to the last day at Ouessant meeting 10 mm (0.39 in). 1973: 15 January 1973 to 1 December 19731974: 9 January 1974 to 26 November 19741975: 20 January 1975 to 2 December 19751976: 22 March 1976 to 6 December 19761977: 4 February 1977 to 26 December 19771978: 11 January 1978 to 23 December 19781979: 19 January 1979 to 16 December 19791980: 30 January 1980 to 7 November 19801981: 14 March 1981 to 23 December 19811993: 11 January 1993 to 10 November 19932005: 23 July 2005 to 30 December 20052006: 28 January 2006 to 18 December 20062007: 17 January 2007 to 25 December 20072008: 6 January 2008 to 13 December 20082009: 19 January 2009 to 29 December 20092011: 13 February 2011 to 16 December 20112012: 1 January 2012 to 22 December 20122013: 16 January 2013 to 24 December 20132014: 1 January 2014 to 4 December 20142015: 8 January 2015 to 15 December 20152016: 3 January 2016 to 23 November 20162018: 7 January 2018 to 15 December 20182019: 18 January 2019 to 21 December 20192021: 5 January 2021 to 7 December 20212022: 8 January 2022 to 31 December 20222023: 7 January 2023 to 2 December 20232026: 19 August 2026 to 29 August 20261973197719812007201220162022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ouessant meeting 10 mm (0.39 in).
First to last qualifying date each year at Ouessant
YearFirst dateLast date
19731973-01-151973-12-01
19741974-01-091974-11-26
19751975-01-201975-12-02
19761976-03-221976-12-06
19771977-02-041977-12-26
19781978-01-111978-12-23
19791979-01-191979-12-16
19801980-01-301980-11-07
19811981-03-141981-12-23
19931993-01-111993-11-10
20052005-07-232005-12-30
20062006-01-282006-12-18
20072007-01-172007-12-25
20082008-01-062008-12-13
20092009-01-192009-12-29
20112011-02-132011-12-16
20122012-01-012012-12-22
20132013-01-162013-12-24
20142014-01-012014-12-04
20152015-01-082015-12-15
20162016-01-032016-11-23
20182018-01-072018-12-15
20192019-01-182019-12-21
20212021-01-052021-12-07
20222022-01-082022-12-31
20232023-01-072023-12-02
20262026-08-192026-08-29

Every Fixed Threshold

Fixed thresholds at Ouessant
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
20 C (68 F): Tropical nights (min10n/a2
10 mm (0.39 in): Days with 10 mm or more rain273120143
25 mm (0.98 in): Days with 25 mm or more rain20520121
50 mm (1.97 in): Days with 50 mm or more rain4119771

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2026.

Download the Data

  • Data for Ouessant 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-16).