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Built 2026-10-19 (19 October 2026)

Blue Door California Threshold Days by Year (USR0000CBLD)

9 fixed thresholds counted per year at Blue Door California (USR0000CBLD): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Blue Door California Thresholds

  • Blue Door California: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 2021 with 52.
  • Blue Door California: days with a maximum temperature at or below 0 C (32 F) in 35 years, most in 2008 with 35.
  • Blue Door California: nights with a minimum temperature at or below 0 C (32 F) in 35 years, most in 2010 with 201.
  • Blue Door California: nights with a minimum temperature at or below -10 C (14 F) in 35 years, most in 2006 with 35.
  • 9 fixed thresholds have at least one qualifying day at Blue Door California.
35 years with a qualifying day
Days at or above 30 C (86 F) per year at Blue Door California Days per year at Blue Door California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 52 in 2021. 02040601992: 251993: 81994: 291995: 131996: 341997: 111998: 291999: 122000: 202001: 342002: 292003: 462004: 232005: 342006: 392007: 362008: 352009: 402010: 362011: 222012: 332013: 342014: 252015: 222016: 282017: 342018: 302019: 142020: 402021: 522022: 472023: 212024: 382025: 202026: 32199219962000200420082012201620202024
Days per year at Blue Door California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 52 in 2021.
Days at or above 30 C (86 F) per year at Blue Door California
YearDaysDecade average
19922520.1
1993820.1
19942920.1
19951320.1
19963420.1
19971120.1
19982920.1
19991220.1
20002033.6
20013433.6
20022933.6
20034633.6
20042333.6
20053433.6
20063933.6
20073633.6
20083533.6
20094033.6
20103627.8
20112227.8
20123327.8
20133427.8
20142527.8
20152227.8
20162827.8
20173427.8
20183027.8
20191427.8
20204035.7
20215235.7
20224735.7
20232135.7
20243835.7
20252035.7
20263235.7
First to last qualifying date each year at Blue Door California For each year, a bar from the first to the last day at Blue Door California meeting 30 C (86 F). 1992: 21 June 1992 to 19 August 19921993: 31 July 1993 to 10 September 19931994: 7 July 1994 to 26 September 19941995: 16 July 1995 to 14 September 19951996: 6 June 1996 to 30 August 19961997: 15 July 1997 to 14 August 19971998: 15 July 1998 to 4 September 19981999: 9 July 1999 to 26 August 19992000: 14 June 2000 to 28 August 20002001: 20 June 2001 to 30 August 20012002: 25 June 2002 to 22 September 20022003: 5 June 2003 to 28 September 20032004: 22 June 2004 to 30 August 20042005: 30 June 2005 to 28 August 20052006: 22 June 2006 to 12 September 20062007: 3 July 2007 to 3 September 20072008: 17 May 2008 to 15 September 20082009: 17 May 2009 to 27 September 20092010: 27 June 2010 to 1 October 20102011: 21 June 2011 to 23 September 20112012: 17 June 2012 to 8 September 20122013: 8 June 2013 to 31 August 20132014: 30 June 2014 to 3 August 20142015: 24 June 2015 to 12 September 20152016: 4 June 2016 to 21 August 20162017: 19 June 2017 to 11 September 20172018: 11 July 2018 to 19 August 20182019: 12 July 2019 to 4 September 20192020: 29 May 2020 to 7 September 20202021: 1 June 2021 to 9 September 20212022: 26 June 2022 to 11 September 20222023: 30 June 2023 to 28 August 20232024: 6 June 2024 to 6 September 20242025: 30 May 2025 to 2 September 20252026: 15 June 2026 to 20 August 20261992199720022007201220172022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Blue Door California meeting 30 C (86 F).
First to last qualifying date each year at Blue Door California
YearFirst dateLast date
19921992-06-211992-08-19
19931993-07-311993-09-10
19941994-07-071994-09-26
19951995-07-161995-09-14
19961996-06-061996-08-30
19971997-07-151997-08-14
19981998-07-151998-09-04
19991999-07-091999-08-26
20002000-06-142000-08-28
20012001-06-202001-08-30
20022002-06-252002-09-22
20032003-06-052003-09-28
20042004-06-222004-08-30
20052005-06-302005-08-28
20062006-06-222006-09-12
20072007-07-032007-09-03
20082008-05-172008-09-15
20092009-05-172009-09-27
20102010-06-272010-10-01
20112011-06-212011-09-23
20122012-06-172012-09-08
20132013-06-082013-08-31
20142014-06-302014-08-03
20152015-06-242015-09-12
20162016-06-042016-08-21
20172017-06-192017-09-11
20182018-07-112018-08-19
20192019-07-122019-09-04
20202020-05-292020-09-07
20212021-06-012021-09-09
20222022-06-262022-09-11
20232023-06-302023-08-28
20242024-06-062024-09-06
20252025-05-302025-09-02
20262026-06-152026-08-20

Every Fixed Threshold

Fixed thresholds at Blue Door California
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3552202132
35 C (95 F): Days19720211
90 F (32.2 C): Days3433202110
100 F (37.8 C): Days2220021
0 C (32 F): Ice days (max353520085
0 C (32 F): Frost days (min35201201090
-10 C (14 F): Days with min353520064
-20 C (-4 F): Days with min7520131
20 C (68 F): Tropical nights (min1119931

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1992.

Download the Data

  • Data for Blue Door 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).