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

Pilot Hill California Threshold Days by Year

10 fixed thresholds counted per year at Pilot Hill California (USR0000CPIL): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Pilot Hill California Thresholds

  • Pilot Hill California: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 2020 with 127.
  • Pilot Hill California: days with a maximum temperature at or above 35 C (95 F) in 33 years, most in 2021 with 61.
  • Pilot Hill California: days with a maximum temperature at or above 90 F (32.2 C) in 33 years, most in 2020 with 103.
  • Pilot Hill California: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1999 with 51.
  • 10 fixed thresholds have at least one qualifying day at Pilot Hill California.
33 years with a qualifying day
Days at or above 30 C (86 F) per year at Pilot Hill California Days per year at Pilot Hill California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 127 in 2020. 0501001501994: 1001995: 861996: 1021997: 991998: 561999: 962000: 942001: 1122002: 1032003: 1122004: 1112005: 872006: 1072007: 892008: 1122009: 1012010: 892011: 922012: 1142013: 1022014: 1162015: 1092016: 1052017: 1092018: 952019: 952020: 1272021: 1162022: 1132023: 962024: 1172025: 1052026: 110199419982002200620102014201820222026
Days per year at Pilot Hill California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 127 in 2020.
Days at or above 30 C (86 F) per year at Pilot Hill California
YearDaysDecade average
199410089.8
19958689.8
199610289.8
19979989.8
19985689.8
19999689.8
200094102.8
2001112102.8
2002103102.8
2003112102.8
2004111102.8
200587102.8
2006107102.8
200789102.8
2008112102.8
2009101102.8
201089102.6
201192102.6
2012114102.6
2013102102.6
2014116102.6
2015109102.6
2016105102.6
2017109102.6
201895102.6
201995102.6
2020127112
2021116112
2022113112
202396112
2024117112
2025105112
2026110112
First to last qualifying date each year at Pilot Hill California For each year, a bar from the first to the last day at Pilot Hill California meeting 30 C (86 F). 1994: 23 May 1994 to 2 October 19941995: 28 May 1995 to 20 October 19951996: 29 April 1996 to 9 October 19961997: 8 May 1997 to 17 October 19971998: 15 June 1998 to 16 September 19981999: 22 May 1999 to 21 October 19992000: 19 May 2000 to 6 October 20002001: 6 May 2001 to 15 October 20012002: 29 May 2002 to 14 October 20022003: 20 May 2003 to 28 October 20032004: 10 April 2004 to 15 October 20042005: 10 March 2005 to 14 October 20052006: 10 May 2006 to 29 September 20062007: 28 April 2007 to 27 September 20072008: 13 April 2008 to 17 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 19 September 20132014: 30 April 2014 to 13 October 20142015: 30 April 2015 to 15 October 20152016: 11 May 2016 to 9 October 20162017: 3 May 2017 to 27 October 20172018: 28 May 2018 to 28 September 20182019: 24 April 2019 to 24 October 20192020: 7 May 2020 to 20 October 20202021: 30 April 2021 to 4 October 20212022: 7 April 2022 to 20 October 20222023: 27 April 2023 to 20 October 20232024: 10 May 2024 to 11 October 20242025: 5 May 2025 to 7 October 20252026: 17 March 2026 to 9 October 20261994199920042009201420192024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Pilot Hill California meeting 30 C (86 F).
First to last qualifying date each year at Pilot Hill California
YearFirst dateLast date
19941994-05-231994-10-02
19951995-05-281995-10-20
19961996-04-291996-10-09
19971997-05-081997-10-17
19981998-06-151998-09-16
19991999-05-221999-10-21
20002000-05-192000-10-06
20012001-05-062001-10-15
20022002-05-292002-10-14
20032003-05-202003-10-28
20042004-04-102004-10-15
20052005-03-102005-10-14
20062006-05-102006-09-29
20072007-04-282007-09-27
20082008-04-132008-10-17
20092009-04-192009-09-28
20102010-06-052010-10-15
20112011-05-042011-10-14
20122012-04-212012-10-18
20132013-04-242013-09-19
20142014-04-302014-10-13
20152015-04-302015-10-15
20162016-05-112016-10-09
20172017-05-032017-10-27
20182018-05-282018-09-28
20192019-04-242019-10-24
20202020-05-072020-10-20
20212021-04-302021-10-04
20222022-04-072022-10-20
20232023-04-272023-10-20
20242024-05-102024-10-11
20252025-05-052025-10-07
20262026-03-172026-10-09

Every Fixed Threshold

Fixed thresholds at Pilot Hill California
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days331272020110
35 C (95 F): Days3361202147
40 C (104 F): Days2510201710
45 C (113 F): Days1120221
90 F (32.2 C): Days33103202083
100 F (37.8 C): Days3226202413
110 F (43.3 C): Days3220061
0 C (32 F): Frost days (min335119995
20 C (68 F): Tropical nights (min301820174
25 C (77 F): Days with min1120061

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1994.

Download the Data

  • Data for Pilot Hill 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).