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Built 2026-10-19 (19 October 2026)

Colton Threshold Days by Year (USC00391851)

6 fixed thresholds counted per year at Colton (USC00391851): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Colton Thresholds

  • Colton: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1992 with 30.
  • Colton: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1982 with 15.
  • Colton: days with 10 cm (3.9 in) or more of snowfall in 39 years, most in 1983 with 9.
  • Colton: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1982 with 4.
  • 6 fixed thresholds have at least one qualifying day at Colton.
42 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Colton Days per year at Colton with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1992. 01020301979: 231980: 111981: 171982: 251983: 191984: 221985: 171986: 251987: 201988: 181989: 151990: 191991: 231992: 301993: 301994: 201995: 291996: 261997: 171998: 221999: 202000: 252001: 212002: 162003: 192006: 142007: 292008: 122010: 192012: 182013: 172014: 182015: 172016: 242017: 192018: 262021: 132022: 192023: 192024: 272025: 202026: 7197919841989199419992006201320182025
Days per year at Colton with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1992.
Days with 10 mm (0.39 in) or more of precipitation per year at Colton
YearDaysDecade average
19792323
19801118.9
19811718.9
19822518.9
19831918.9
19842218.9
19851718.9
19862518.9
19872018.9
19881818.9
19891518.9
19901923.6
19912323.6
19923023.6
19933023.6
19942023.6
19952923.6
19962623.6
19971723.6
19982223.6
19992023.6
20002519.4
20012119.4
20021619.4
20031919.4
20061419.4
20072919.4
20081219.4
20101919.8
20121819.8
20131719.8
20141819.8
20151719.8
20162419.8
20171919.8
20182619.8
20211317.5
20221917.5
20231917.5
20242717.5
20252017.5
2026717.5
First to last qualifying date each year at Colton For each year, a bar from the first to the last day at Colton meeting 10 mm (0.39 in). 1979: 19 March 1979 to 22 November 19791980: 26 May 1980 to 17 October 19801981: 28 February 1981 to 1 December 19811982: 20 March 1982 to 28 December 19821983: 10 January 1983 to 28 November 19831984: 19 February 1984 to 16 December 19841985: 3 March 1985 to 9 November 19851986: 18 March 1986 to 8 November 19861987: 18 March 1987 to 28 December 19871988: 19 January 1988 to 12 November 19881989: 27 April 1989 to 29 October 19891990: 8 March 1990 to 3 October 19901991: 29 April 1991 to 30 November 19911992: 18 February 1992 to 20 November 19921993: 21 March 1993 to 25 November 19931994: 15 April 1994 to 15 December 19941995: 15 February 1995 to 24 October 19951996: 18 January 1996 to 15 December 19961997: 4 February 1997 to 13 October 19971998: 27 March 1998 to 10 November 19981999: 6 April 1999 to 2 October 19992000: 19 January 2000 to 12 November 20002001: 30 January 2001 to 27 November 20012002: 15 March 2002 to 10 October 20022003: 7 April 2003 to 11 October 20032006: 31 March 2006 to 22 September 20062007: 25 March 2007 to 19 October 20072008: 4 February 2008 to 23 October 20082010: 5 February 2010 to 11 December 20102012: 23 February 2012 to 15 December 20122013: 10 February 2013 to 5 November 20132014: 28 March 2014 to 16 December 20142015: 25 April 2015 to 26 December 20152016: 24 March 2016 to 26 December 20162017: 20 April 2017 to 7 October 20172018: 24 March 2018 to 28 December 20182021: 11 March 2021 to 16 December 20212022: 15 January 2022 to 9 December 20222023: 3 January 2023 to 26 December 20232024: 8 January 2024 to 31 December 20242025: 15 March 2025 to 18 November 20252026: 27 April 2026 to 18 September 20261979198519911997200320132021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Colton meeting 10 mm (0.39 in).
First to last qualifying date each year at Colton
YearFirst dateLast date
19791979-03-191979-11-22
19801980-05-261980-10-17
19811981-02-281981-12-01
19821982-03-201982-12-28
19831983-01-101983-11-28
19841984-02-191984-12-16
19851985-03-031985-11-09
19861986-03-181986-11-08
19871987-03-181987-12-28
19881988-01-191988-11-12
19891989-04-271989-10-29
19901990-03-081990-10-03
19911991-04-291991-11-30
19921992-02-181992-11-20
19931993-03-211993-11-25
19941994-04-151994-12-15
19951995-02-151995-10-24
19961996-01-181996-12-15
19971997-02-041997-10-13
19981998-03-271998-11-10
19991999-04-061999-10-02
20002000-01-192000-11-12
20012001-01-302001-11-27
20022002-03-152002-10-10
20032003-04-072003-10-11
20062006-03-312006-09-22
20072007-03-252007-10-19
20082008-02-042008-10-23
20102010-02-052010-12-11
20122012-02-232012-12-15
20132013-02-102013-11-05
20142014-03-282014-12-16
20152015-04-252015-12-26
20162016-03-242016-12-26
20172017-04-202017-10-07
20182018-03-242018-12-28
20212021-03-112021-12-16
20222022-01-152022-12-09
20232023-01-032023-12-26
20242024-01-082024-12-31
20252025-03-152025-11-18
20262026-04-272026-09-18

Every Fixed Threshold

Fixed thresholds at Colton
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain423019927
25 mm (0.98 in): Days with 25 mm or more rain421519823
50 mm (1.97 in): Days with 50 mm or more rain32419821
100 mm (3.94 in): Days with 100 mm or more rain4119861
10 cm (3.9 in): Days with 10 cm or more snowfall39919831
25 cm (9.8 in): Days with 25 cm or more snowfall3119831

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1979.

Download the Data

  • Data for Colton 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).