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Built 2026-10-19 (19 October 2026)

Lake Nammen Threshold Days by Year

3 fixed thresholds counted per year at Lake Nammen (ASN00009210): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lake Nammen Thresholds

  • Lake Nammen: days with 10 mm (0.39 in) or more of precipitation in 45 years, most in 1996 with 25.
  • Lake Nammen: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1987 with 7.
  • Lake Nammen: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1987 with 3.
  • 3 fixed thresholds have at least one qualifying day at Lake Nammen.
45 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Lake Nammen Days per year at Lake Nammen with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 25 in 1996. 01020301971: 151972: 191973: 191974: 181975: 201976: 181977: 131978: 191979: 161980: 201981: 171982: 221983: 171984: 191985: 151986: 201987: 161988: 201989: 121990: 131991: 171992: 181993: 151994: 141995: 241996: 251997: 162000: 202001: 172003: 212004: 212006: 82014: 182015: 122016: 182017: 182018: 202019: 122020: 182021: 242022: 222023: 102024: 152025: 52026: 14197119761981198619911996200420172022
Days per year at Lake Nammen with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 25 in 1996.
Days with 10 mm (0.39 in) or more of precipitation per year at Lake Nammen
YearDaysDecade average
19711517.4
19721917.4
19731917.4
19741817.4
19752017.4
19761817.4
19771317.4
19781917.4
19791617.4
19802017.8
19811717.8
19822217.8
19831717.8
19841917.8
19851517.8
19862017.8
19871617.8
19882017.8
19891217.8
19901317.8
19911717.8
19921817.8
19931517.8
19941417.8
19952417.8
19962517.8
19971617.8
20002017.4
20011717.4
20032117.4
20042117.4
2006817.4
20141816.3
20151216.3
20161816.3
20171816.3
20182016.3
20191216.3
20201815.4
20212415.4
20222215.4
20231015.4
20241515.4
2025515.4
20261415.4
First to last qualifying date each year at Lake Nammen For each year, a bar from the first to the last day at Lake Nammen meeting 10 mm (0.39 in). 1971: 31 January 1971 to 21 October 19711972: 7 April 1972 to 8 October 19721973: 13 May 1973 to 24 September 19731974: 3 April 1974 to 23 October 19741975: 17 April 1975 to 17 November 19751976: 12 April 1976 to 12 November 19761977: 15 May 1977 to 26 December 19771978: 24 February 1978 to 19 December 19781979: 14 March 1979 to 21 September 19791980: 19 April 1980 to 22 September 19801981: 18 February 1981 to 26 October 19811982: 21 January 1982 to 24 September 19821983: 3 May 1983 to 28 December 19831984: 21 February 1984 to 16 November 19841985: 10 April 1985 to 23 September 19851986: 20 February 1986 to 13 October 19861987: 25 April 1987 to 30 November 19871988: 23 March 1988 to 28 December 19881989: 25 February 1989 to 2 October 19891990: 28 January 1990 to 17 October 19901991: 10 April 1991 to 26 December 19911992: 9 February 1992 to 20 November 19921993: 2 May 1993 to 4 September 19931994: 23 May 1994 to 14 October 19941995: 28 March 1995 to 18 October 19951996: 19 April 1996 to 15 November 19961997: 25 February 1997 to 9 October 19972000: 13 January 2000 to 6 September 20002001: 6 May 2001 to 19 November 20012003: 30 March 2003 to 8 September 20032004: 21 March 2004 to 26 December 20042006: 24 May 2006 to 1 September 20062014: 30 January 2014 to 19 October 20142015: 2 February 2015 to 30 August 20152016: 31 January 2016 to 31 August 20162017: 29 January 2017 to 4 December 20172018: 16 January 2018 to 14 October 20182019: 7 June 2019 to 2 September 20192020: 24 February 2020 to 14 November 20202021: 7 February 2021 to 9 November 20212022: 30 March 2022 to 24 October 20222023: 24 May 2023 to 14 September 20232024: 31 May 2024 to 2 October 20242025: 14 March 2025 to 18 September 20252026: 29 March 2026 to 27 August 202619711977198319891995200420182024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lake Nammen meeting 10 mm (0.39 in).
First to last qualifying date each year at Lake Nammen
YearFirst dateLast date
19711971-01-311971-10-21
19721972-04-071972-10-08
19731973-05-131973-09-24
19741974-04-031974-10-23
19751975-04-171975-11-17
19761976-04-121976-11-12
19771977-05-151977-12-26
19781978-02-241978-12-19
19791979-03-141979-09-21
19801980-04-191980-09-22
19811981-02-181981-10-26
19821982-01-211982-09-24
19831983-05-031983-12-28
19841984-02-211984-11-16
19851985-04-101985-09-23
19861986-02-201986-10-13
19871987-04-251987-11-30
19881988-03-231988-12-28
19891989-02-251989-10-02
19901990-01-281990-10-17
19911991-04-101991-12-26
19921992-02-091992-11-20
19931993-05-021993-09-04
19941994-05-231994-10-14
19951995-03-281995-10-18
19961996-04-191996-11-15
19971997-02-251997-10-09
20002000-01-132000-09-06
20012001-05-062001-11-19
20032003-03-302003-09-08
20042004-03-212004-12-26
20062006-05-242006-09-01
20142014-01-302014-10-19
20152015-02-022015-08-30
20162016-01-312016-08-31
20172017-01-292017-12-04
20182018-01-162018-10-14
20192019-06-072019-09-02
20202020-02-242020-11-14
20212021-02-072021-11-09
20222022-03-302022-10-24
20232023-05-242023-09-14
20242024-05-312024-10-02
20252025-03-142025-09-18
20262026-03-292026-08-27

Every Fixed Threshold

Fixed thresholds at Lake Nammen
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4525199614
25 mm (0.98 in): Days with 25 mm or more rain41719873
50 mm (1.97 in): Days with 50 mm or more rain16319871

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1971.

Download the Data

  • Data for Lake Nammen 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 (2026-10-12).