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Built 2026-10-19 (19 October 2026)

Ortrask Threshold Days by Year (SWE00140258)

3 fixed thresholds counted per year at Ortrask (SWE00140258): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ortrask Thresholds

  • Ortrask: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 2001 with 25.
  • Ortrask: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1945 with 4.
  • Ortrask: days with 50 mm (1.97 in) or more of precipitation in 4 years, most in 2009 with 2.
  • 3 fixed thresholds have at least one qualifying day at Ortrask.
49 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ortrask Days per year at Ortrask with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 25 in 2001. 01020301945: 111946: 71947: 131948: 121949: 161952: 111954: 201955: 131956: 91957: 131974: 171975: 61976: 51977: 141978: 141979: 201980: 161981: 151982: 61983: 91984: 141985: 181986: 101987: 191988: 141989: 121990: 131991: 101992: 161993: 181994: 91995: 131996: 141997: 121998: 191999: 142000: 202001: 252002: 72003: 112004: 132005: 172006: 152007: 92008: 122009: 162010: 112011: 182012: 151945195219741979198419891994199920042009
Days per year at Ortrask with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 25 in 2001.
Days with 10 mm (0.39 in) or more of precipitation per year at Ortrask
YearDaysDecade average
19451111.8
1946711.8
19471311.8
19481211.8
19491611.8
19521113.2
19542013.2
19551313.2
1956913.2
19571313.2
19741712.7
1975612.7
1976512.7
19771412.7
19781412.7
19792012.7
19801613.3
19811513.3
1982613.3
1983913.3
19841413.3
19851813.3
19861013.3
19871913.3
19881413.3
19891213.3
19901313.8
19911013.8
19921613.8
19931813.8
1994913.8
19951313.8
19961413.8
19971213.8
19981913.8
19991413.8
20002014.5
20012514.5
2002714.5
20031114.5
20041314.5
20051714.5
20061514.5
2007914.5
20081214.5
20091614.5
20101114.7
20111814.7
20121514.7
First to last qualifying date each year at Ortrask For each year, a bar from the first to the last day at Ortrask meeting 10 mm (0.39 in). 1945: 1 March 1945 to 9 October 19451946: 10 January 1946 to 20 September 19461947: 7 June 1947 to 25 December 19471948: 1 May 1948 to 18 December 19481949: 19 January 1949 to 25 December 19491952: 20 April 1952 to 13 December 19521954: 19 January 1954 to 9 December 19541955: 5 February 1955 to 28 December 19551956: 13 January 1956 to 25 October 19561957: 3 March 1957 to 4 November 19571974: 8 February 1974 to 11 November 19741975: 13 January 1975 to 13 September 19751976: 27 July 1976 to 5 December 19761977: 27 January 1977 to 12 November 19771978: 13 March 1978 to 15 November 19781979: 3 May 1979 to 29 November 19791980: 4 June 1980 to 20 November 19801981: 22 March 1981 to 24 November 19811982: 28 May 1982 to 20 December 19821983: 14 March 1983 to 30 December 19831984: 13 January 1984 to 6 December 19841985: 29 May 1985 to 3 December 19851986: 25 March 1986 to 8 November 19861987: 13 February 1987 to 17 November 19871988: 16 February 1988 to 9 October 19881989: 22 April 1989 to 5 November 19891990: 26 May 1990 to 2 November 19901991: 14 May 1991 to 7 November 19911992: 15 June 1992 to 3 December 19921993: 28 May 1993 to 19 December 19931994: 7 January 1994 to 27 October 19941995: 10 January 1995 to 25 August 19951996: 25 May 1996 to 11 December 19961997: 3 April 1997 to 13 November 19971998: 23 February 1998 to 29 October 19981999: 16 January 1999 to 17 December 19992000: 29 January 2000 to 13 December 20002001: 8 January 2001 to 14 September 20012002: 22 February 2002 to 31 August 20022003: 20 January 2003 to 5 October 20032004: 3 February 2004 to 21 September 20042005: 4 May 2005 to 20 September 20052006: 20 June 2006 to 25 November 20062007: 13 June 2007 to 29 December 20072008: 12 January 2008 to 12 December 20082009: 8 February 2009 to 30 November 20092010: 27 January 2010 to 16 December 20102011: 27 May 2011 to 18 December 20112012: 2 January 2012 to 16 October 20121945195519781985199219992006JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ortrask meeting 10 mm (0.39 in).
First to last qualifying date each year at Ortrask
YearFirst dateLast date
19451945-03-011945-10-09
19461946-01-101946-09-20
19471947-06-071947-12-25
19481948-05-011948-12-18
19491949-01-191949-12-25
19521952-04-201952-12-13
19541954-01-191954-12-09
19551955-02-051955-12-28
19561956-01-131956-10-25
19571957-03-031957-11-04
19741974-02-081974-11-11
19751975-01-131975-09-13
19761976-07-271976-12-05
19771977-01-271977-11-12
19781978-03-131978-11-15
19791979-05-031979-11-29
19801980-06-041980-11-20
19811981-03-221981-11-24
19821982-05-281982-12-20
19831983-03-141983-12-30
19841984-01-131984-12-06
19851985-05-291985-12-03
19861986-03-251986-11-08
19871987-02-131987-11-17
19881988-02-161988-10-09
19891989-04-221989-11-05
19901990-05-261990-11-02
19911991-05-141991-11-07
19921992-06-151992-12-03
19931993-05-281993-12-19
19941994-01-071994-10-27
19951995-01-101995-08-25
19961996-05-251996-12-11
19971997-04-031997-11-13
19981998-02-231998-10-29
19991999-01-161999-12-17
20002000-01-292000-12-13
20012001-01-082001-09-14
20022002-02-222002-08-31
20032003-01-202003-10-05
20042004-02-032004-09-21
20052005-05-042005-09-20
20062006-06-202006-11-25
20072007-06-132007-12-29
20082008-01-122008-12-12
20092009-02-082009-11-30
20102010-01-272010-12-16
20112011-05-272011-12-18
20122012-01-022012-10-16

Every Fixed Threshold

Fixed thresholds at Ortrask
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4925200115
25 mm (0.98 in): Days with 25 mm or more rain31419453
50 mm (1.97 in): Days with 50 mm or more rain4220092

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 Ortrask 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).