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

Ursholmen Threshold Days by Year (SWE00135970)

6 fixed thresholds counted per year at Ursholmen (SWE00135970): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ursholmen Thresholds

  • Ursholmen: days with a maximum temperature at or below 0 C (32 F) in 33 years, most in 1942 with 76.
  • Ursholmen: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1941 with 148.
  • Ursholmen: nights with a minimum temperature at or below -10 C (14 F) in 23 years, most in 1942 with 47.
  • Ursholmen: nights with a minimum temperature at or above 20 C (68 F) in 13 years, most in 1953 with 5.
  • 6 fixed thresholds have at least one qualifying day at Ursholmen.
4 years with a qualifying day
Days at or above 30 C (86 F) per year at Ursholmen Days per year at Ursholmen with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 1 in 1930. 001111930: 11933: 11935: 11941: 11930193319351941
Days per year at Ursholmen with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 1 in 1930.
Days at or above 30 C (86 F) per year at Ursholmen
YearDaysDecade average
193011
193311
193511
194111
First to last qualifying date each year at Ursholmen For each year, a bar from the first to the last day at Ursholmen meeting 30 C (86 F). 1930: 3 July 1930 to 3 July 19301933: 9 July 1933 to 9 July 19331935: 25 June 1935 to 25 June 19351941: 27 July 1941 to 27 July 19411930193319351941JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ursholmen meeting 30 C (86 F).
First to last qualifying date each year at Ursholmen
YearFirst dateLast date
19301930-07-031930-07-03
19331933-07-091933-07-09
19351935-06-251935-06-25
19411941-07-271941-07-27

Every Fixed Threshold

Fixed thresholds at Ursholmen
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4119301
0 C (32 F): Ice days (max3376194219
0 C (32 F): Frost days (min33148194176
-10 C (14 F): Days with min234719421
-20 C (-4 F): Days with min3319423
20 C (68 F): Tropical nights (min13519531

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

Download the Data

  • Data for Ursholmen 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).