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

Umea Threshold Days by Year (SWE00140186)

10 fixed thresholds counted per year at Umea (SWE00140186): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Umea Thresholds

  • Umea: days with 10 mm (0.39 in) or more of precipitation in 120 years, most in 1966 with 29.
  • Umea: days with 25 mm (0.98 in) or more of precipitation in 100 years, most in 1867 with 8.
  • Umea: days with a maximum temperature at or below 0 C (32 F) in 97 years, most in 1915 with 142.
  • Umea: nights with a minimum temperature at or below 0 C (32 F) in 96 years, most in 1888 with 239.
  • 10 fixed thresholds have at least one qualifying day at Umea.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Umea Days per year at Umea with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 3 in 1882. 01231882: 31883: 11891: 11897: 11941: 11945: 1188218831891189719411945
Days per year at Umea with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 3 in 1882.
Days at or above 30 C (86 F) per year at Umea
YearDaysDecade average
188232
188312
189111
189711
194111
194511
First to last qualifying date each year at Umea For each year, a bar from the first to the last day at Umea meeting 30 C (86 F). 1882: 27 June 1882 to 31 July 18821883: 30 June 1883 to 30 June 18831891: 25 June 1891 to 25 June 18911897: 16 July 1897 to 16 July 18971941: 31 July 1941 to 31 July 19411945: 18 July 1945 to 18 July 1945188218831891189719411945JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Umea meeting 30 C (86 F).
First to last qualifying date each year at Umea
YearFirst dateLast date
18821882-06-271882-07-31
18831883-06-301883-06-30
18911891-06-251891-06-25
18971897-07-161897-07-16
19411941-07-311941-07-31
19451945-07-181945-07-18

Every Fixed Threshold

Fixed thresholds at Umea
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days6318821
90 F (32.2 C): Days1118821
0 C (32 F): Ice days (max97142191598
0 C (32 F): Frost days (min962391888208
-10 C (14 F): Days with min96121188885
-20 C (-4 F): Days with min9542196632
-30 C (-22 F): Days with min281019662
10 mm (0.39 in): Days with 10 mm or more rain12029196615
25 mm (0.98 in): Days with 25 mm or more rain100818672
50 mm (1.97 in): Days with 50 mm or more rain12218641

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1882.

Download the Data

  • Data for Umea 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).