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Built 2026-10-19 (19 October 2026)

Quartz Hill California Threshold Days by Year (USR0000CQUA)

10 fixed thresholds counted per year at Quartz Hill California (USR0000CQUA): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Quartz Hill California Thresholds

  • Quartz Hill California: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 2003 with 82.
  • Quartz Hill California: days with a maximum temperature at or above 90 F (32.2 C) in 33 years, most in 2003 with 59.
  • Quartz Hill California: days with a maximum temperature at or below 0 C (32 F) in 33 years, most in 1993 with 18.
  • Quartz Hill California: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 2008 with 124.
  • 10 fixed thresholds have at least one qualifying day at Quartz Hill California.
33 years with a qualifying day
Days at or above 30 C (86 F) per year at Quartz Hill California Days per year at Quartz Hill California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 82 in 2003. 02550751001991: 621992: 581993: 241994: 571995: 331996: 551997: 261998: 461999: 502000: 542003: 822004: 762006: 772007: 712008: 762009: 712010: 542011: 602012: 732013: 612014: 672015: 672016: 682017: 762018: 692019: 632020: 792021: 772022: 822023: 642024: 782025: 732026: 77199119951999200620102014201820222026
Days per year at Quartz Hill California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 82 in 2003.
Days at or above 30 C (86 F) per year at Quartz Hill California
YearDaysDecade average
19916245.7
19925845.7
19932445.7
19945745.7
19953345.7
19965545.7
19972645.7
19984645.7
19995045.7
20005472.4
20038272.4
20047672.4
20067772.4
20077172.4
20087672.4
20097172.4
20105465.8
20116065.8
20127365.8
20136165.8
20146765.8
20156765.8
20166865.8
20177665.8
20186965.8
20196365.8
20207975.7
20217775.7
20228275.7
20236475.7
20247875.7
20257375.7
20267775.7
First to last qualifying date each year at Quartz Hill California For each year, a bar from the first to the last day at Quartz Hill California meeting 30 C (86 F). 1991: 9 June 1991 to 15 October 19911992: 5 May 1992 to 12 October 19921993: 18 June 1993 to 1 October 19931994: 10 June 1994 to 27 September 19941995: 24 June 1995 to 19 September 19951996: 2 June 1996 to 9 October 19961997: 13 May 1997 to 29 September 19971998: 17 July 1998 to 16 September 19981999: 23 May 1999 to 30 September 19992000: 21 May 2000 to 20 September 20002003: 22 May 2003 to 28 September 20032004: 2 May 2004 to 4 October 20042006: 15 May 2006 to 29 September 20062007: 9 May 2007 to 12 September 20072008: 15 May 2008 to 29 September 20082009: 21 April 2009 to 27 September 20092010: 26 June 2010 to 2 October 20102011: 20 June 2011 to 29 September 20112012: 13 May 2012 to 2 October 20122013: 11 May 2013 to 14 September 20132014: 1 May 2014 to 6 October 20142015: 29 May 2015 to 15 October 20152016: 31 May 2016 to 28 September 20162017: 22 May 2017 to 13 September 20172018: 3 June 2018 to 28 September 20182019: 3 June 2019 to 26 September 20192020: 8 May 2020 to 1 October 20202021: 30 May 2021 to 25 September 20212022: 25 May 2022 to 8 October 20222023: 17 May 2023 to 18 September 20232024: 16 May 2024 to 3 October 20242025: 28 May 2025 to 27 September 20252026: 11 May 2026 to 8 October 20261991199620032009201420192024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Quartz Hill California meeting 30 C (86 F).
First to last qualifying date each year at Quartz Hill California
YearFirst dateLast date
19911991-06-091991-10-15
19921992-05-051992-10-12
19931993-06-181993-10-01
19941994-06-101994-09-27
19951995-06-241995-09-19
19961996-06-021996-10-09
19971997-05-131997-09-29
19981998-07-171998-09-16
19991999-05-231999-09-30
20002000-05-212000-09-20
20032003-05-222003-09-28
20042004-05-022004-10-04
20062006-05-152006-09-29
20072007-05-092007-09-12
20082008-05-152008-09-29
20092009-04-212009-09-27
20102010-06-262010-10-02
20112011-06-202011-09-29
20122012-05-132012-10-02
20132013-05-112013-09-14
20142014-05-012014-10-06
20152015-05-292015-10-15
20162016-05-312016-09-28
20172017-05-222017-09-13
20182018-06-032018-09-28
20192019-06-032019-09-26
20202020-05-082020-10-01
20212021-05-302021-09-25
20222022-05-252022-10-08
20232023-05-172023-09-18
20242024-05-162024-10-03
20252025-05-282025-09-27
20262026-05-112026-10-08

Every Fixed Threshold

Fixed thresholds at Quartz Hill California
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3382200377
35 C (95 F): Days3233202115
40 C (104 F): Days5320031
90 F (32.2 C): Days3359200350
100 F (37.8 C): Days26820064
0 C (32 F): Ice days (max331819931
0 C (32 F): Frost days (min33124200828
-10 C (14 F): Days with min11419982
20 C (68 F): Tropical nights (min3232200011
25 C (77 F): Days with min3220221

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 Quartz 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

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