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

Norrkoping-Sorby Threshold Days by Year (SWE00138580)

10 fixed thresholds counted per year at Norrkoping-Sorby (SWE00138580): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Norrkoping-Sorby Thresholds

  • Norrkoping-Sorby: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1974 with 21.
  • Norrkoping-Sorby: days with a maximum temperature at or below 0 C (32 F) in 40 years, most in 1963 with 86.
  • Norrkoping-Sorby: nights with a minimum temperature at or below 0 C (32 F) in 39 years, most in 1956 with 170.
  • Norrkoping-Sorby: nights with a minimum temperature at or below -10 C (14 F) in 39 years, most in 1963 with 54.
  • 10 fixed thresholds have at least one qualifying day at Norrkoping-Sorby.
14 years with a qualifying day
Days at or above 30 C (86 F) per year at Norrkoping-Sorby Days per year at Norrkoping-Sorby with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1975. 024681955: 31959: 31968: 21969: 41970: 21973: 21975: 81977: 11979: 11982: 61983: 51986: 11989: 21991: 21955196819701975197919831989
Days per year at Norrkoping-Sorby with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1975.
Days at or above 30 C (86 F) per year at Norrkoping-Sorby
YearDaysDecade average
195533
195933
196823
196943
197022.8
197322.8
197582.8
197712.8
197912.8
198263.5
198353.5
198613.5
198923.5
199122
First to last qualifying date each year at Norrkoping-Sorby For each year, a bar from the first to the last day at Norrkoping-Sorby meeting 30 C (86 F). 1955: 13 July 1955 to 31 July 19551959: 9 July 1959 to 22 August 19591968: 17 June 1968 to 18 June 19681969: 29 July 1969 to 7 August 19691970: 19 June 1970 to 20 June 19701973: 6 July 1973 to 7 July 19731975: 4 August 1975 to 11 August 19751977: 11 June 1977 to 11 June 19771979: 2 June 1979 to 2 June 19791982: 3 August 1982 to 8 August 19821983: 9 July 1983 to 9 August 19831986: 26 June 1986 to 26 June 19861989: 7 July 1989 to 8 July 19891991: 6 July 1991 to 7 July 19911955196819701975197919831989JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Norrkoping-Sorby meeting 30 C (86 F).
First to last qualifying date each year at Norrkoping-Sorby
YearFirst dateLast date
19551955-07-131955-07-31
19591959-07-091959-08-22
19681968-06-171968-06-18
19691969-07-291969-08-07
19701970-06-191970-06-20
19731973-07-061973-07-07
19751975-08-041975-08-11
19771977-06-111977-06-11
19791979-06-021979-06-02
19821982-08-031982-08-08
19831983-07-091983-08-09
19861986-06-261986-06-26
19891989-07-071989-07-08
19911991-07-061991-07-07

Every Fixed Threshold

Fixed thresholds at Norrkoping-Sorby
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days14819752
90 F (32.2 C): Days4419751
0 C (32 F): Ice days (max4086196315
0 C (32 F): Frost days (min391701956120
-10 C (14 F): Days with min395419633
-20 C (-4 F): Days with min261519702
-30 C (-22 F): Days with min1219662
10 mm (0.39 in): Days with 10 mm or more rain442119749
25 mm (0.98 in): Days with 25 mm or more rain27419781
50 mm (1.97 in): Days with 50 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 1955.

Download the Data

  • Data for Norrkoping-Sorby 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).