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Built 2026-10-19 (19 October 2026)

Umfors Threshold Days by Year (SWE00140654)

3 fixed thresholds counted per year at Umfors (SWE00140654): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Umfors Thresholds

  • Umfors: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1975 with 29.
  • Umfors: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1972 with 7.
  • Umfors: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1966 with 1.
  • 3 fixed thresholds have at least one qualifying day at Umfors.
38 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Umfors Days per year at Umfors with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1975. 01020301964: 241965: 101966: 111967: 141968: 111969: 131970: 141971: 211972: 251973: 231974: 91975: 291976: 161977: 171978: 161979: 121980: 111981: 111982: 201983: 221984: 111985: 151986: 111987: 171988: 141989: 251990: 181991: 181992: 201993: 211994: 151995: 211996: 131997: 191998: 281999: 112000: 182001: 281964196819721976198019841988199219962000
Days per year at Umfors with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1975.
Days with 10 mm (0.39 in) or more of precipitation per year at Umfors
YearDaysDecade average
19642413.8
19651013.8
19661113.8
19671413.8
19681113.8
19691313.8
19701418.2
19712118.2
19722518.2
19732318.2
1974918.2
19752918.2
19761618.2
19771718.2
19781618.2
19791218.2
19801115.7
19811115.7
19822015.7
19832215.7
19841115.7
19851515.7
19861115.7
19871715.7
19881415.7
19892515.7
19901818.4
19911818.4
19922018.4
19932118.4
19941518.4
19952118.4
19961318.4
19971918.4
19982818.4
19991118.4
20001823
20012823
First to last qualifying date each year at Umfors For each year, a bar from the first to the last day at Umfors meeting 10 mm (0.39 in). 1964: 2 January 1964 to 9 December 19641965: 7 January 1965 to 6 November 19651966: 26 January 1966 to 19 September 19661967: 15 January 1967 to 30 November 19671968: 19 January 1968 to 5 December 19681969: 5 March 1969 to 27 October 19691970: 31 January 1970 to 19 December 19701971: 7 January 1971 to 25 December 19711972: 11 March 1972 to 31 December 19721973: 4 January 1973 to 29 December 19731974: 18 January 1974 to 31 December 19741975: 1 January 1975 to 30 December 19751976: 7 January 1976 to 21 November 19761977: 5 January 1977 to 18 December 19771978: 6 January 1978 to 18 December 19781979: 6 February 1979 to 5 December 19791980: 12 January 1980 to 30 December 19801981: 8 January 1981 to 6 September 19811982: 13 January 1982 to 27 December 19821983: 7 January 1983 to 27 December 19831984: 10 January 1984 to 8 December 19841985: 9 March 1985 to 29 October 19851986: 2 March 1986 to 30 November 19861987: 20 January 1987 to 1 December 19871988: 26 January 1988 to 28 December 19881989: 2 January 1989 to 2 December 19891990: 5 February 1990 to 6 December 19901991: 21 January 1991 to 29 December 19911992: 3 January 1992 to 27 December 19921993: 8 January 1993 to 23 October 19931994: 21 January 1994 to 24 December 19941995: 8 January 1995 to 14 November 19951996: 16 April 1996 to 9 December 19961997: 14 January 1997 to 14 September 19971998: 12 January 1998 to 17 December 19981999: 27 May 1999 to 30 November 19992000: 10 February 2000 to 8 October 20002001: 13 February 2001 to 18 December 200119641969197419791984198919941999JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Umfors meeting 10 mm (0.39 in).
First to last qualifying date each year at Umfors
YearFirst dateLast date
19641964-01-021964-12-09
19651965-01-071965-11-06
19661966-01-261966-09-19
19671967-01-151967-11-30
19681968-01-191968-12-05
19691969-03-051969-10-27
19701970-01-311970-12-19
19711971-01-071971-12-25
19721972-03-111972-12-31
19731973-01-041973-12-29
19741974-01-181974-12-31
19751975-01-011975-12-30
19761976-01-071976-11-21
19771977-01-051977-12-18
19781978-01-061978-12-18
19791979-02-061979-12-05
19801980-01-121980-12-30
19811981-01-081981-09-06
19821982-01-131982-12-27
19831983-01-071983-12-27
19841984-01-101984-12-08
19851985-03-091985-10-29
19861986-03-021986-11-30
19871987-01-201987-12-01
19881988-01-261988-12-28
19891989-01-021989-12-02
19901990-02-051990-12-06
19911991-01-211991-12-29
19921992-01-031992-12-27
19931993-01-081993-10-23
19941994-01-211994-12-24
19951995-01-081995-11-14
19961996-04-161996-12-09
19971997-01-141997-09-14
19981998-01-121998-12-17
19991999-05-271999-11-30
20002000-02-102000-10-08
20012001-02-132001-12-18

Every Fixed Threshold

Fixed thresholds at Umfors
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3829197528
25 mm (0.98 in): Days with 25 mm or more rain32719725
50 mm (1.97 in): Days with 50 mm or more rain5119661

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.

Download the Data

  • Data for Umfors 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).