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Built 2026-10-19 (19 October 2026)

Carson Fish Hatchery Threshold Days by Year (USC00451160)

15 fixed thresholds counted per year at Carson Fish Hatchery (USC00451160): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Carson Fish Hatchery Thresholds

  • Carson Fish Hatchery: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 2021 with 50.
  • Carson Fish Hatchery: days with a maximum temperature at or above 90 F (32.2 C) in 42 years, most in 2022 with 30.
  • Carson Fish Hatchery: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 1985 with 32.
  • Carson Fish Hatchery: days with a maximum temperature at or above 35 C (95 F) in 39 years, most in 1998 with 16.
  • 15 fixed thresholds have at least one qualifying day at Carson Fish Hatchery.
42 years with a qualifying day
Days at or above 30 C (86 F) per year at Carson Fish Hatchery Days per year at Carson Fish Hatchery with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 2021. 02040601978: 271979: 211980: 151981: 381982: 211983: 121984: 261985: 331986: 411987: 421988: 341989: 171990: 331991: 261992: 401993: 201994: 241995: 201996: 321997: 221998: 421999: 342000: 202001: 212002: 292003: 422004: 302005: 232007: 272008: 262009: 382010: 212011: 202015: 452018: 432019: 162021: 502022: 432023: 472024: 402025: 452026: 34197819831988199319982003200920192025
Days per year at Carson Fish Hatchery with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 2021.
Days at or above 30 C (86 F) per year at Carson Fish Hatchery
YearDaysDecade average
19782724
19792124
19801527.9
19813827.9
19822127.9
19831227.9
19842627.9
19853327.9
19864127.9
19874227.9
19883427.9
19891727.9
19903329.3
19912629.3
19924029.3
19932029.3
19942429.3
19952029.3
19963229.3
19972229.3
19984229.3
19993429.3
20002028.4
20012128.4
20022928.4
20034228.4
20043028.4
20052328.4
20072728.4
20082628.4
20093828.4
20102129
20112029
20154529
20184329
20191629
20215043.2
20224343.2
20234743.2
20244043.2
20254543.2
20263443.2
First to last qualifying date each year at Carson Fish Hatchery For each year, a bar from the first to the last day at Carson Fish Hatchery meeting 30 C (86 F). 1978: 3 June 1978 to 30 August 19781979: 26 May 1979 to 13 August 19791980: 2 July 1980 to 11 September 19801981: 26 June 1981 to 17 September 19811982: 25 May 1982 to 3 September 19821983: 24 May 1983 to 15 August 19831984: 30 May 1984 to 19 September 19841985: 12 June 1985 to 27 August 19851986: 26 May 1986 to 6 September 19861987: 28 April 1987 to 23 September 19871988: 12 May 1988 to 16 September 19881989: 2 June 1989 to 25 September 19891990: 22 June 1990 to 23 September 19901991: 2 July 1991 to 27 September 19911992: 5 May 1992 to 3 September 19921993: 18 May 1993 to 11 September 19931994: 25 May 1994 to 19 September 19941995: 30 May 1995 to 16 September 19951996: 3 June 1996 to 12 September 19961997: 13 May 1997 to 23 August 19971998: 1 May 1998 to 16 September 19981999: 14 June 1999 to 23 September 19992000: 18 June 2000 to 15 September 20002001: 23 May 2001 to 25 September 20012002: 13 June 2002 to 14 September 20022003: 30 May 2003 to 29 September 20032004: 5 June 2004 to 1 September 20042005: 28 May 2005 to 9 September 20052007: 30 May 2007 to 11 September 20072008: 16 May 2008 to 17 September 20082009: 29 May 2009 to 13 September 20092010: 8 July 2010 to 4 September 20102011: 6 July 2011 to 13 September 20112015: 1 June 2015 to 13 September 20152018: 14 May 2018 to 8 September 20182019: 12 June 2019 to 6 September 20192021: 1 June 2021 to 9 September 20212022: 25 June 2022 to 27 September 20222023: 13 May 2023 to 16 September 20232024: 7 June 2024 to 24 September 20242025: 28 May 2025 to 24 September 20252026: 3 May 2026 to 31 August 20261978198419901996200220092021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Carson Fish Hatchery meeting 30 C (86 F).
First to last qualifying date each year at Carson Fish Hatchery
YearFirst dateLast date
19781978-06-031978-08-30
19791979-05-261979-08-13
19801980-07-021980-09-11
19811981-06-261981-09-17
19821982-05-251982-09-03
19831983-05-241983-08-15
19841984-05-301984-09-19
19851985-06-121985-08-27
19861986-05-261986-09-06
19871987-04-281987-09-23
19881988-05-121988-09-16
19891989-06-021989-09-25
19901990-06-221990-09-23
19911991-07-021991-09-27
19921992-05-051992-09-03
19931993-05-181993-09-11
19941994-05-251994-09-19
19951995-05-301995-09-16
19961996-06-031996-09-12
19971997-05-131997-08-23
19981998-05-011998-09-16
19991999-06-141999-09-23
20002000-06-182000-09-15
20012001-05-232001-09-25
20022002-06-132002-09-14
20032003-05-302003-09-29
20042004-06-052004-09-01
20052005-05-282005-09-09
20072007-05-302007-09-11
20082008-05-162008-09-17
20092009-05-292009-09-13
20102010-07-082010-09-04
20112011-07-062011-09-13
20152015-06-012015-09-13
20182018-05-142018-09-08
20192019-06-122019-09-06
20212021-06-012021-09-09
20222022-06-252022-09-27
20232023-05-132023-09-16
20242024-06-072024-09-24
20252025-05-282025-09-24
20262026-05-032026-08-31

Every Fixed Threshold

Fixed thresholds at Carson Fish Hatchery
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4250202134
35 C (95 F): Days391619985
40 C (104 F): Days5320211
90 F (32.2 C): Days4230202214
100 F (37.8 C): Days22820221
0 C (32 F): Ice days (max413219851
0 C (32 F): Frost days (min39182198563
-10 C (14 F): Days with min283119853
10 mm (0.39 in): Days with 10 mm or more rain3097199619
25 mm (0.98 in): Days with 25 mm or more rain304619966
50 mm (1.97 in): Days with 50 mm or more rain301819961
100 mm (3.94 in): Days with 100 mm or more rain10319961
10 cm (3.9 in): Days with 10 cm or more snowfall341219854
25 cm (9.8 in): Days with 25 cm or more snowfall17419901
50 cm (19.7 in): Days with 50 cm or more snowfall3119801

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1978.

Download the Data

  • Data for Carson Fish Hatchery 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 (2026-10-17).