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Data as of 2026-10-15
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Built 2026-10-17 (17 October 2026)

Briones California Threshold Days by Year

9 fixed thresholds counted per year at Briones California (USR0000CBRI): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Briones California Thresholds

  • Briones California: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 2020 with 81.
  • Briones California: days with a maximum temperature at or above 35 C (95 F) in 29 years, most in 2024 with 28.
  • Briones California: days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 2024 with 49.
  • Briones California: nights with a minimum temperature at or above 20 C (68 F) in 28 years, most in 2020 with 27.
  • 9 fixed thresholds have at least one qualifying day at Briones California.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Briones California Days per year at Briones California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 81 in 2020. 02550751001995: 371996: 611997: 431998: 701999: 472000: 482001: 712002: 592003: 632006: 682007: 472008: 662009: 532010: 422011: 412012: 532013: 382014: 492015: 432016: 492018: 542019: 472020: 812021: 622022: 602023: 432024: 682025: 382026: 501995199820012006200920122015201920222025
Days per year at Briones California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 81 in 2020.
Days at or above 30 C (86 F) per year at Briones California
YearDaysDecade average
19953751.6
19966151.6
19974351.6
19987051.6
19994751.6
20004859.4
20017159.4
20025959.4
20036359.4
20066859.4
20074759.4
20086659.4
20095359.4
20104246.2
20114146.2
20125346.2
20133846.2
20144946.2
20154346.2
20164946.2
20185446.2
20194746.2
20208157.4
20216257.4
20226057.4
20234357.4
20246857.4
20253857.4
20265057.4
First to last qualifying date each year at Briones California For each year, a bar from the first to the last day at Briones California meeting 30 C (86 F). 1995: 22 June 1995 to 3 October 19951996: 29 April 1996 to 8 October 19961997: 25 April 1997 to 17 October 19971998: 10 March 1998 to 13 September 19981999: 22 May 1999 to 14 October 19992000: 2 April 2000 to 1 October 20002001: 6 May 2001 to 15 October 20012002: 24 May 2002 to 14 October 20022003: 19 May 2003 to 28 October 20032006: 10 May 2006 to 23 October 20062007: 27 April 2007 to 2 October 20072008: 13 April 2008 to 7 October 20082009: 20 April 2009 to 27 September 20092010: 12 June 2010 to 15 October 20102011: 5 May 2011 to 29 September 20112012: 21 April 2012 to 18 October 20122013: 22 April 2013 to 19 September 20132014: 1 May 2014 to 13 October 20142015: 7 June 2015 to 14 October 20152016: 17 May 2016 to 9 October 20162018: 28 May 2018 to 27 September 20182019: 24 April 2019 to 25 October 20192020: 7 May 2020 to 21 October 20202021: 18 April 2021 to 4 October 20212022: 18 May 2022 to 19 October 20222023: 27 April 2023 to 19 October 20232024: 30 May 2024 to 8 October 20242025: 9 May 2025 to 7 October 20252026: 20 March 2026 to 8 October 202619951999200320092013201820222026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Briones California meeting 30 C (86 F).
First to last qualifying date each year at Briones California
YearFirst dateLast date
19951995-06-221995-10-03
19961996-04-291996-10-08
19971997-04-251997-10-17
19981998-03-101998-09-13
19991999-05-221999-10-14
20002000-04-022000-10-01
20012001-05-062001-10-15
20022002-05-242002-10-14
20032003-05-192003-10-28
20062006-05-102006-10-23
20072007-04-272007-10-02
20082008-04-132008-10-07
20092009-04-202009-09-27
20102010-06-122010-10-15
20112011-05-052011-09-29
20122012-04-212012-10-18
20132013-04-222013-09-19
20142014-05-012014-10-13
20152015-06-072015-10-14
20162016-05-172016-10-09
20182018-05-282018-09-27
20192019-04-242019-10-25
20202020-05-072020-10-21
20212021-04-182021-10-04
20222022-05-182022-10-19
20232023-04-272023-10-19
20242024-05-302024-10-08
20252025-05-092025-10-07
20262026-03-202026-10-08

Every Fixed Threshold

Fixed thresholds at Briones California
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2981202050
35 C (95 F): Days2928202414
40 C (104 F): Days14820063
90 F (32.2 C): Days2949202429
100 F (37.8 C): Days271220061
110 F (43.3 C): Days2220061
0 C (32 F): Frost days (min14720073
20 C (68 F): Tropical nights (min2827202013
25 C (77 F): Days with min15720201

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1995.

Download the Data

  • Data for Briones California 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-15).