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Built 2026-10-19 (19 October 2026)

Pleasant Hill WFO Threshold Days by Year (USC00236745)

18 fixed thresholds counted per year at Pleasant Hill WFO (USC00236745): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Pleasant Hill WFO Thresholds

  • Pleasant Hill WFO: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 1998 with 87.
  • Pleasant Hill WFO: days with a maximum temperature at or above 35 C (95 F) in 31 years, most in 2012 with 41.
  • Pleasant Hill WFO: days with a maximum temperature at or above 90 F (32.2 C) in 31 years, most in 2012 with 65.
  • Pleasant Hill WFO: days with a maximum temperature at or below 0 C (32 F) in 31 years, most in 2014 with 37.
  • 18 fixed thresholds have at least one qualifying day at Pleasant Hill WFO.
31 years with a qualifying day
Days at or above 30 C (86 F) per year at Pleasant Hill WFO Days per year at Pleasant Hill WFO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 87 in 1998. 02550751001996: 501997: 641998: 871999: 662000: 802001: 602002: 822003: 662004: 332005: 802006: 782007: 822008: 412009: 372010: 782011: 792012: 852013: 652014: 402015: 562016: 692017: 612018: 862019: 602020: 682021: 662022: 782023: 742024: 682025: 632026: 8219962000200420082012201620202024
Days per year at Pleasant Hill WFO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 87 in 1998.
Days at or above 30 C (86 F) per year at Pleasant Hill WFO
YearDaysDecade average
19965066.8
19976466.8
19988766.8
19996666.8
20008063.9
20016063.9
20028263.9
20036663.9
20043363.9
20058063.9
20067863.9
20078263.9
20084163.9
20093763.9
20107867.9
20117967.9
20128567.9
20136567.9
20144067.9
20155667.9
20166967.9
20176167.9
20188667.9
20196067.9
20206871.3
20216671.3
20227871.3
20237471.3
20246871.3
20256371.3
20268271.3
First to last qualifying date each year at Pleasant Hill WFO For each year, a bar from the first to the last day at Pleasant Hill WFO meeting 30 C (86 F). 1996: 17 May 1996 to 11 September 19961997: 18 May 1997 to 7 October 19971998: 14 May 1998 to 30 September 19981999: 10 May 1999 to 16 October 19992000: 9 May 2000 to 4 October 20002001: 16 May 2001 to 8 September 20012002: 16 April 2002 to 2 October 20022003: 31 May 2003 to 11 September 20032004: 7 May 2004 to 15 September 20042005: 11 May 2005 to 5 October 20052006: 14 April 2006 to 4 October 20062007: 6 May 2007 to 7 October 20072008: 26 May 2008 to 3 September 20082009: 30 May 2009 to 28 September 20092010: 23 May 2010 to 22 September 20102011: 4 April 2011 to 5 October 20112012: 1 April 2012 to 12 September 20122013: 14 May 2013 to 4 October 20132014: 4 May 2014 to 9 September 20142015: 7 June 2015 to 22 September 20152016: 7 June 2016 to 17 October 20162017: 15 May 2017 to 14 October 20172018: 9 May 2018 to 3 October 20182019: 16 May 2019 to 2 October 20192020: 8 April 2020 to 7 October 20202021: 7 June 2021 to 9 October 20212022: 9 May 2022 to 24 September 20222023: 6 May 2023 to 2 October 20232024: 19 May 2024 to 12 October 20242025: 14 May 2025 to 15 October 20252026: 20 March 2026 to 13 October 202619962000200420082012201620202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Pleasant Hill WFO meeting 30 C (86 F).
First to last qualifying date each year at Pleasant Hill WFO
YearFirst dateLast date
19961996-05-171996-09-11
19971997-05-181997-10-07
19981998-05-141998-09-30
19991999-05-101999-10-16
20002000-05-092000-10-04
20012001-05-162001-09-08
20022002-04-162002-10-02
20032003-05-312003-09-11
20042004-05-072004-09-15
20052005-05-112005-10-05
20062006-04-142006-10-04
20072007-05-062007-10-07
20082008-05-262008-09-03
20092009-05-302009-09-28
20102010-05-232010-09-22
20112011-04-042011-10-05
20122012-04-012012-09-12
20132013-05-142013-10-04
20142014-05-042014-09-09
20152015-06-072015-09-22
20162016-06-072016-10-17
20172017-05-152017-10-14
20182018-05-092018-10-03
20192019-05-162019-10-02
20202020-04-082020-10-07
20212021-06-072021-10-09
20222022-05-092022-09-24
20232023-05-062023-10-02
20242024-05-192024-10-12
20252025-05-142025-10-15
20262026-03-202026-10-13

Every Fixed Threshold

Fixed thresholds at Pleasant Hill WFO
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3187199882
35 C (95 F): Days3141201218
40 C (104 F): Days6620006
90 F (32.2 C): Days3165201244
100 F (37.8 C): Days151720122
0 C (32 F): Ice days (max3137201412
0 C (32 F): Frost days (min31119200845
-10 C (14 F): Days with min3138199615
-20 C (-4 F): Days with min17519961
20 C (68 F): Tropical nights (min3163201869
25 C (77 F): Days with min18620106
10 mm (0.39 in): Days with 10 mm or more rain3142201535
25 mm (0.98 in): Days with 25 mm or more rain3121200813
50 mm (1.97 in): Days with 50 mm or more rain31720083
100 mm (3.94 in): Days with 100 mm or more rain7219981
200 mm (7.87 in): Days with 200 mm or more rain1119981
10 cm (3.9 in): Days with 10 cm or more snowfall19320101
25 cm (9.8 in): Days with 25 cm or more snowfall2120111

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1996.

Download the Data

  • Data for Pleasant Hill WFO 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).