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Built 2026-10-19 (19 October 2026)

Ben Bolt California Threshold Days by Year (USR0000CBLT)

11 fixed thresholds counted per year at Ben Bolt California (USR0000CBLT): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ben Bolt California Thresholds

  • Ben Bolt California: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 2020 with 136.
  • Ben Bolt California: days with a maximum temperature at or above 35 C (95 F) in 35 years, most in 2024 with 82.
  • Ben Bolt California: days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 2020 with 117.
  • Ben Bolt California: days with a maximum temperature at or above 100 F (37.8 C) in 35 years, most in 2024 with 54.
  • 11 fixed thresholds have at least one qualifying day at Ben Bolt California.
35 years with a qualifying day
Days at or above 30 C (86 F) per year at Ben Bolt California Days per year at Ben Bolt California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 136 in 2020. 0501001501991: 1081992: 1051993: 931994: 1051995: 941996: 1051997: 1191998: 731999: 982001: 1222002: 1142003: 1302004: 1272005: 1062006: 1122007: 1052008: 1142009: 1132010: 1012011: 972012: 1222013: 1162014: 1342015: 1162016: 1152017: 1202018: 1042019: 1082020: 1362021: 1232022: 1282023: 1042024: 1352025: 1212026: 124199119951999200420082012201620202024
Days per year at Ben Bolt California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 136 in 2020.
Days at or above 30 C (86 F) per year at Ben Bolt California
YearDaysDecade average
1991108100
1992105100
199393100
1994105100
199594100
1996105100
1997119100
199873100
199998100
2001122115.9
2002114115.9
2003130115.9
2004127115.9
2005106115.9
2006112115.9
2007105115.9
2008114115.9
2009113115.9
2010101113.3
201197113.3
2012122113.3
2013116113.3
2014134113.3
2015116113.3
2016115113.3
2017120113.3
2018104113.3
2019108113.3
2020136124.4
2021123124.4
2022128124.4
2023104124.4
2024135124.4
2025121124.4
2026124124.4
First to last qualifying date each year at Ben Bolt California For each year, a bar from the first to the last day at Ben Bolt California meeting 30 C (86 F). 1991: 11 February 1991 to 21 October 19911992: 28 April 1992 to 12 October 19921993: 9 May 1993 to 30 October 19931994: 23 May 1994 to 9 October 19941995: 28 May 1995 to 20 October 19951996: 17 April 1996 to 9 October 19961997: 26 April 1997 to 3 November 19971998: 29 April 1998 to 14 September 19981999: 21 May 1999 to 22 October 19992001: 25 April 2001 to 26 October 20012002: 12 May 2002 to 14 October 20022003: 20 May 2003 to 28 October 20032004: 20 March 2004 to 15 October 20042005: 22 May 2005 to 17 October 20052006: 10 May 2006 to 22 October 20062007: 28 April 2007 to 24 October 20072008: 12 April 2008 to 23 October 20082009: 19 April 2009 to 28 September 20092010: 5 June 2010 to 15 October 20102011: 4 May 2011 to 14 October 20112012: 21 April 2012 to 18 October 20122013: 24 April 2013 to 22 October 20132014: 30 April 2014 to 13 October 20142015: 30 April 2015 to 16 October 20152016: 11 May 2016 to 9 October 20162017: 2 May 2017 to 28 October 20172018: 27 May 2018 to 2 October 20182019: 24 April 2019 to 25 October 20192020: 28 April 2020 to 21 October 20202021: 29 April 2021 to 4 October 20212022: 7 April 2022 to 20 October 20222023: 27 April 2023 to 20 October 20232024: 9 May 2024 to 15 October 20242025: 5 May 2025 to 7 October 20252026: 17 March 2026 to 9 October 20261991199620022007201220172022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ben Bolt California meeting 30 C (86 F).
First to last qualifying date each year at Ben Bolt California
YearFirst dateLast date
19911991-02-111991-10-21
19921992-04-281992-10-12
19931993-05-091993-10-30
19941994-05-231994-10-09
19951995-05-281995-10-20
19961996-04-171996-10-09
19971997-04-261997-11-03
19981998-04-291998-09-14
19991999-05-211999-10-22
20012001-04-252001-10-26
20022002-05-122002-10-14
20032003-05-202003-10-28
20042004-03-202004-10-15
20052005-05-222005-10-17
20062006-05-102006-10-22
20072007-04-282007-10-24
20082008-04-122008-10-23
20092009-04-192009-09-28
20102010-06-052010-10-15
20112011-05-042011-10-14
20122012-04-212012-10-18
20132013-04-242013-10-22
20142014-04-302014-10-13
20152015-04-302015-10-16
20162016-05-112016-10-09
20172017-05-022017-10-28
20182018-05-272018-10-02
20192019-04-242019-10-25
20202020-04-282020-10-21
20212021-04-292021-10-04
20222022-04-072022-10-20
20232023-04-272023-10-20
20242024-05-092024-10-15
20252025-05-052025-10-07
20262026-03-172026-10-09

Every Fixed Threshold

Fixed thresholds at Ben Bolt California
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days351362020124
35 C (95 F): Days3582202470
40 C (104 F): Days3427202410
45 C (113 F): Days3320243
90 F (32.2 C): Days35117202098
100 F (37.8 C): Days3554202433
110 F (43.3 C): Days11619986
0 C (32 F): Ice days (max1119931
0 C (32 F): Frost days (min343719993
20 C (68 F): Tropical nights (min313419989
25 C (77 F): Days with min61419982

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1991.

Download the Data

  • Data for Ben Bolt 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).