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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Forse Threshold Days by Year (SWE00139962)

12 fixed thresholds counted per year at Forse (SWE00139962): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Forse Thresholds

  • Forse: days with 10 mm (0.39 in) or more of precipitation in 121 years, most in 1927 with 25.
  • Forse: nights with a minimum temperature at or below 0 C (32 F) in 120 years, most in 1902 with 257.
  • Forse: nights with a minimum temperature at or below -10 C (14 F) in 120 years, most in 1917 with 120.
  • Forse: nights with a minimum temperature at or below -20 C (-4 F) in 118 years, most in 1917 with 61.
  • 12 fixed thresholds have at least one qualifying day at Forse.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Forse Days per year at Forse with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1969. 02461958: 21959: 11966: 31968: 21969: 61973: 21975: 11986: 21988: 21991: 11994: 31999: 12000: 12003: 42004: 12006: 32008: 22009: 12010: 12011: 12014: 62015: 22018: 52019: 42020: 42021: 22022: 3195819681975199120002006201020152020
Days per year at Forse with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1969.
Days at or above 30 C (86 F) per year at Forse
YearDaysDecade average
195821.5
195911.5
196633.7
196823.7
196963.7
197321.5
197511.5
198622
198822
199111.7
199431.7
199911.7
200012
200342
200412
200632
200822
200912
201013.2
201113.2
201463.2
201523.2
201853.2
201943.2
202043
202123
202233
First to last qualifying date each year at Forse For each year, a bar from the first to the last day at Forse meeting 30 C (86 F). 1958: 2 July 1958 to 3 July 19581959: 6 July 1959 to 6 July 19591966: 15 June 1966 to 19 June 19661968: 2 July 1968 to 3 July 19681969: 28 June 1969 to 13 August 19691973: 2 July 1973 to 3 July 19731975: 6 August 1975 to 6 August 19751986: 17 June 1986 to 26 June 19861988: 26 June 1988 to 27 June 19881991: 9 July 1991 to 9 July 19911994: 13 July 1994 to 27 July 19941999: 10 July 1999 to 10 July 19992000: 30 June 2000 to 30 June 20002003: 16 July 2003 to 19 July 20032004: 7 August 2004 to 7 August 20042006: 12 June 2006 to 6 August 20062008: 5 June 2008 to 26 July 20082009: 27 June 2009 to 27 June 20092010: 3 July 2010 to 3 July 20102011: 11 June 2011 to 11 June 20112014: 22 July 2014 to 4 August 20142015: 2 July 2015 to 3 July 20152018: 16 July 2018 to 25 July 20182019: 6 June 2019 to 27 July 20192020: 23 June 2020 to 26 June 20202021: 3 July 2021 to 26 July 20212022: 25 June 2022 to 27 June 20221958196919882000200820142020JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Forse meeting 30 C (86 F).
First to last qualifying date each year at Forse
YearFirst dateLast date
19581958-07-021958-07-03
19591959-07-061959-07-06
19661966-06-151966-06-19
19681968-07-021968-07-03
19691969-06-281969-08-13
19731973-07-021973-07-03
19751975-08-061975-08-06
19861986-06-171986-06-26
19881988-06-261988-06-27
19911991-07-091991-07-09
19941994-07-131994-07-27
19991999-07-101999-07-10
20002000-06-302000-06-30
20032003-07-162003-07-19
20042004-08-072004-08-07
20062006-06-122006-08-06
20082008-06-052008-07-26
20092009-06-272009-06-27
20102010-07-032010-07-03
20112011-06-112011-06-11
20142014-07-222014-08-04
20152015-07-022015-07-03
20182018-07-162018-07-25
20192019-06-062019-07-27
20202020-06-232020-06-26
20212021-07-032021-07-26
20222022-06-252022-06-27

Every Fixed Threshold

Fixed thresholds at Forse
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days27619693
90 F (32.2 C): Days7119681
0 C (32 F): Ice days (max66125198094
0 C (32 F): Frost days (min1202571902205
-10 C (14 F): Days with min120120191779
-20 C (-4 F): Days with min11861191721
-30 C (-22 F): Days with min741419153
-40 C (-40 F): Days with min3119181
20 C (68 F): Tropical nights (min2119941
10 mm (0.39 in): Days with 10 mm or more rain12125192718
25 mm (0.98 in): Days with 25 mm or more rain89620001
50 mm (1.97 in): Days with 50 mm or more rain5119141

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

  • Data for Forse 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 (2025-12-31).