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Built 2026-10-19 (19 October 2026)

Sundby Threshold Days by Year (SWE00139076)

3 fixed thresholds counted per year at Sundby (SWE00139076): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sundby Thresholds

  • Sundby: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1981 with 21.
  • Sundby: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1973 with 4.
  • Sundby: days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 1976 with 1.
  • 3 fixed thresholds have at least one qualifying day at Sundby.
41 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Sundby Days per year at Sundby with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1981. 01020301961: 121962: 131963: 101964: 141965: 101966: 191967: 191968: 131969: 111970: 131971: 81972: 131973: 111974: 171975: 81976: 81977: 201978: 91979: 191980: 201981: 211982: 131983: 181984: 171985: 191986: 181987: 141988: 151989: 71990: 181991: 121992: 181993: 161994: 111995: 131996: 171997: 191998: 141999: 152000: 212001: 11196119661971197619811986199119962001
Days per year at Sundby with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1981.
Days with 10 mm (0.39 in) or more of precipitation per year at Sundby
YearDaysDecade average
19611213.4
19621313.4
19631013.4
19641413.4
19651013.4
19661913.4
19671913.4
19681313.4
19691113.4
19701312.6
1971812.6
19721312.6
19731112.6
19741712.6
1975812.6
1976812.6
19772012.6
1978912.6
19791912.6
19802016.2
19812116.2
19821316.2
19831816.2
19841716.2
19851916.2
19861816.2
19871416.2
19881516.2
1989716.2
19901815.3
19911215.3
19921815.3
19931615.3
19941115.3
19951315.3
19961715.3
19971915.3
19981415.3
19991515.3
20002116
20011116
First to last qualifying date each year at Sundby For each year, a bar from the first to the last day at Sundby meeting 10 mm (0.39 in). 1961: 6 February 1961 to 18 October 19611962: 11 January 1962 to 26 October 19621963: 26 June 1963 to 18 December 19631964: 13 May 1964 to 13 December 19641965: 11 January 1965 to 10 December 19651966: 29 January 1966 to 29 December 19661967: 31 January 1967 to 17 October 19671968: 2 April 1968 to 2 November 19681969: 13 January 1969 to 8 November 19691970: 1 January 1970 to 28 November 19701971: 31 January 1971 to 4 November 19711972: 26 March 1972 to 22 November 19721973: 12 February 1973 to 16 December 19731974: 13 January 1974 to 16 November 19741975: 7 April 1975 to 2 December 19751976: 5 January 1976 to 3 December 19761977: 10 January 1977 to 24 November 19771978: 29 January 1978 to 24 September 19781979: 12 January 1979 to 28 December 19791980: 1 June 1980 to 13 December 19801981: 14 January 1981 to 24 December 19811982: 6 February 1982 to 11 December 19821983: 4 January 1983 to 24 September 19831984: 26 May 1984 to 20 December 19841985: 20 January 1985 to 3 December 19851986: 2 January 1986 to 5 December 19861987: 10 February 1987 to 29 December 19871988: 11 January 1988 to 26 December 19881989: 25 February 1989 to 29 October 19891990: 20 January 1990 to 16 November 19901991: 2 January 1991 to 26 September 19911992: 3 February 1992 to 25 November 19921993: 24 May 1993 to 23 December 19931994: 12 January 1994 to 10 December 19941995: 31 January 1995 to 28 September 19951996: 5 May 1996 to 20 November 19961997: 10 April 1997 to 31 December 19971998: 19 January 1998 to 26 December 19981999: 6 January 1999 to 25 December 19992000: 24 February 2000 to 29 December 20002001: 8 February 2001 to 20 December 20011961196719731979198519911997JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Sundby meeting 10 mm (0.39 in).
First to last qualifying date each year at Sundby
YearFirst dateLast date
19611961-02-061961-10-18
19621962-01-111962-10-26
19631963-06-261963-12-18
19641964-05-131964-12-13
19651965-01-111965-12-10
19661966-01-291966-12-29
19671967-01-311967-10-17
19681968-04-021968-11-02
19691969-01-131969-11-08
19701970-01-011970-11-28
19711971-01-311971-11-04
19721972-03-261972-11-22
19731973-02-121973-12-16
19741974-01-131974-11-16
19751975-04-071975-12-02
19761976-01-051976-12-03
19771977-01-101977-11-24
19781978-01-291978-09-24
19791979-01-121979-12-28
19801980-06-011980-12-13
19811981-01-141981-12-24
19821982-02-061982-12-11
19831983-01-041983-09-24
19841984-05-261984-12-20
19851985-01-201985-12-03
19861986-01-021986-12-05
19871987-02-101987-12-29
19881988-01-111988-12-26
19891989-02-251989-10-29
19901990-01-201990-11-16
19911991-01-021991-09-26
19921992-02-031992-11-25
19931993-05-241993-12-23
19941994-01-121994-12-10
19951995-01-311995-09-28
19961996-05-051996-11-20
19971997-04-101997-12-31
19981998-01-191998-12-26
19991999-01-061999-12-25
20002000-02-242000-12-29
20012001-02-082001-12-20

Every Fixed Threshold

Fixed thresholds at Sundby
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4121198111
25 mm (0.98 in): Days with 25 mm or more rain33419731
50 mm (1.97 in): Days with 50 mm or more rain6119761

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

  • Data for Sundby 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).