Daily records
Page built 2026-10-16
Data as of 2026-10-14
Search
Built 2026-10-16 (16 October 2026)

Westwood California Threshold Days by Year

7 fixed thresholds counted per year at Westwood California (USR0000CWES): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Westwood California Thresholds

  • Westwood California: days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 2022 with 36.
  • Westwood California: days with a maximum temperature at or below 0 C (32 F) in 32 years, most in 2001 with 53.
  • Westwood California: nights with a minimum temperature at or below 0 C (32 F) in 31 years, most in 1998 with 165.
  • Westwood California: nights with a minimum temperature at or below -10 C (14 F) in 29 years, most in 2007 with 13.
  • 7 fixed thresholds have at least one qualifying day at Westwood California.
32 years with a qualifying day
Days at or above 30 C (86 F) per year at Westwood California Days per year at Westwood California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 2022. 0102030401991: 21992: 101994: 61996: 71997: 31998: 121999: 42001: 112002: 162003: 132004: 212005: 52006: 142007: 82008: 132009: 202010: 112011: 12012: 112013: 182014: 182015: 212016: 162017: 342018: 292019: 72020: 272022: 362023: 122024: 292025: 142026: 1619911997200220062010201420182023
Days per year at Westwood California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 2022.
Days at or above 30 C (86 F) per year at Westwood California
YearDaysDecade average
199126.3
1992106.3
199466.3
199676.3
199736.3
1998126.3
199946.3
20011113.4
20021613.4
20031313.4
20042113.4
2005513.4
20061413.4
2007813.4
20081313.4
20092013.4
20101116.6
2011116.6
20121116.6
20131816.6
20141816.6
20152116.6
20161616.6
20173416.6
20182916.6
2019716.6
20202722.3
20223622.3
20231222.3
20242922.3
20251422.3
20261622.3
First to last qualifying date each year at Westwood California For each year, a bar from the first to the last day at Westwood California meeting 30 C (86 F). 1991: 3 July 1991 to 4 July 19911992: 22 June 1992 to 18 August 19921994: 8 July 1994 to 28 July 19941996: 7 July 1996 to 29 August 19961997: 5 August 1997 to 7 August 19971998: 16 July 1998 to 4 September 19981999: 10 July 1999 to 13 July 19992001: 2 July 2001 to 28 August 20012002: 9 July 2002 to 2 September 20022003: 17 July 2003 to 24 September 20032004: 8 August 2004 to 15 October 20042005: 14 July 2005 to 5 August 20052006: 23 June 2006 to 27 July 20062007: 4 July 2007 to 24 August 20072008: 7 July 2008 to 29 August 20082009: 17 July 2009 to 26 September 20092010: 15 July 2010 to 30 September 20102011: 29 July 2011 to 29 July 20112012: 11 July 2012 to 17 August 20122013: 7 June 2013 to 19 August 20132014: 30 June 2014 to 2 August 20142015: 24 June 2015 to 12 September 20152016: 24 July 2016 to 21 August 20162017: 19 June 2017 to 5 September 20172018: 11 July 2018 to 19 August 20182019: 28 July 2019 to 28 August 20192020: 22 June 2020 to 2 October 20202022: 26 June 2022 to 8 September 20222023: 14 July 2023 to 16 August 20232024: 3 July 2024 to 5 September 20242025: 29 June 2025 to 23 August 20252026: 15 June 2026 to 20 August 202619911997200220062010201420182023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Westwood California meeting 30 C (86 F).
First to last qualifying date each year at Westwood California
YearFirst dateLast date
19911991-07-031991-07-04
19921992-06-221992-08-18
19941994-07-081994-07-28
19961996-07-071996-08-29
19971997-08-051997-08-07
19981998-07-161998-09-04
19991999-07-101999-07-13
20012001-07-022001-08-28
20022002-07-092002-09-02
20032003-07-172003-09-24
20042004-08-082004-10-15
20052005-07-142005-08-05
20062006-06-232006-07-27
20072007-07-042007-08-24
20082008-07-072008-08-29
20092009-07-172009-09-26
20102010-07-152010-09-30
20112011-07-292011-07-29
20122012-07-112012-08-17
20132013-06-072013-08-19
20142014-06-302014-08-02
20152015-06-242015-09-12
20162016-07-242016-08-21
20172017-06-192017-09-05
20182018-07-112018-08-19
20192019-07-282019-08-28
20202020-06-222020-10-02
20222022-06-262022-09-08
20232023-07-142023-08-16
20242024-07-032024-09-05
20252025-06-292025-08-23
20262026-06-152026-08-20

Every Fixed Threshold

Fixed thresholds at Westwood California
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3236202216
35 C (95 F): Days3320223
90 F (32.2 C): Days271220244
0 C (32 F): Ice days (max325320016
0 C (32 F): Frost days (min31165199848
-10 C (14 F): Days with min291320071
20 C (68 F): Tropical nights (min251520244

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 Westwood 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-14).