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

Norrkoping Threshold Days by Year (SWE00138576)

12 fixed thresholds counted per year at Norrkoping (SWE00138576): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Norrkoping Thresholds

  • Norrkoping: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1974 with 22.
  • Norrkoping: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1962 with 3.
  • Norrkoping: nights with a minimum temperature at or below 0 C (32 F) in 17 years, most in 1956 with 165.
  • Norrkoping: nights with a minimum temperature at or below -10 C (14 F) in 17 years, most in 1947 with 50.
  • 12 fixed thresholds have at least one qualifying day at Norrkoping.
9 years with a qualifying day
Days at or above 30 C (86 F) per year at Norrkoping Days per year at Norrkoping with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1947. 0510151945: 61946: 41947: 151952: 11953: 71955: 21956: 11957: 31959: 3194519461947195219531955195619571959
Days per year at Norrkoping with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1947.
Days at or above 30 C (86 F) per year at Norrkoping
YearDaysDecade average
194568.3
194648.3
1947158.3
195212.8
195372.8
195522.8
195612.8
195732.8
195932.8
First to last qualifying date each year at Norrkoping For each year, a bar from the first to the last day at Norrkoping meeting 30 C (86 F). 1945: 15 July 1945 to 20 July 19451946: 30 May 1946 to 25 July 19461947: 26 June 1947 to 17 August 19471952: 10 July 1952 to 10 July 19521953: 26 June 1953 to 3 July 19531955: 11 August 1955 to 15 August 19551956: 9 June 1956 to 9 June 19561957: 17 June 1957 to 23 July 19571959: 9 July 1959 to 23 August 195919451947195319561959JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Norrkoping meeting 30 C (86 F).
First to last qualifying date each year at Norrkoping
YearFirst dateLast date
19451945-07-151945-07-20
19461946-05-301946-07-25
19471947-06-261947-08-17
19521952-07-101952-07-10
19531953-06-261953-07-03
19551955-08-111955-08-15
19561956-06-091956-06-09
19571957-06-171957-07-23
19591959-07-091959-08-23

Every Fixed Threshold

Fixed thresholds at Norrkoping
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days91519473
35 C (95 F): Days1219472
90 F (32.2 C): Days3519453
0 C (32 F): Ice days (max1686194774
0 C (32 F): Frost days (min171651956136
-10 C (14 F): Days with min1750194748
-20 C (-4 F): Days with min101019473
20 C (68 F): Tropical nights (min2119471
10 mm (0.39 in): Days with 10 mm or more rain5422197413
25 mm (0.98 in): Days with 25 mm or more rain31319622
50 mm (1.97 in): Days with 50 mm or more rain3119451
100 mm (3.94 in): Days with 100 mm or more rain1119731

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

  • Data for Norrkoping 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).