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Built 2026-10-16 (16 October 2026)

Slater Butte California Threshold Days by Year

11 fixed thresholds counted per year at Slater Butte California (USR0000CSLA): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Slater Butte California Thresholds

  • Slater Butte California: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 2012 with 68.
  • Slater Butte California: days with a maximum temperature at or above 90 F (32.2 C) in 26 years, most in 2013 with 41.
  • Slater Butte California: days with a maximum temperature at or below 0 C (32 F) in 26 years, most in 1990 with 31.
  • Slater Butte California: nights with a minimum temperature at or below 0 C (32 F) in 25 years, most in 2012 with 124.
  • 11 fixed thresholds have at least one qualifying day at Slater Butte California.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Slater Butte California Days per year at Slater Butte California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 68 in 2012. 0204060801989: 161990: 271991: 491992: 501996: 551997: 341999: 582000: 552005: 372007: 322010: 562012: 682013: 572014: 502015: 392016: 312017: 422018: 372019: 212020: 372021: 532022: 562023: 352024: 492025: 482026: 50198919921999200720132016201920222025
Days per year at Slater Butte California with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 68 in 2012.
Days at or above 30 C (86 F) per year at Slater Butte California
YearDaysDecade average
19891616
19902745.5
19914945.5
19925045.5
19965545.5
19973445.5
19995845.5
20005541.3
20053741.3
20073241.3
20105644.6
20126844.6
20135744.6
20145044.6
20153944.6
20163144.6
20174244.6
20183744.6
20192144.6
20203746.9
20215346.9
20225646.9
20233546.9
20244946.9
20254846.9
20265046.9
First to last qualifying date each year at Slater Butte California For each year, a bar from the first to the last day at Slater Butte California meeting 30 C (86 F). 1989: 6 July 1989 to 4 September 19891990: 20 June 1990 to 30 September 19901991: 9 June 1991 to 14 October 19911992: 4 May 1992 to 11 October 19921996: 2 June 1996 to 8 October 19961997: 11 May 1997 to 24 September 19971999: 23 May 1999 to 2 October 19992000: 3 June 2000 to 20 September 20002005: 26 May 2005 to 1 September 20052007: 30 May 2007 to 11 September 20072010: 24 June 2010 to 1 October 20102012: 15 May 2012 to 2 October 20122013: 4 June 2013 to 14 September 20132014: 14 May 2014 to 20 September 20142015: 7 June 2015 to 12 September 20152016: 4 June 2016 to 26 September 20162017: 22 May 2017 to 11 September 20172018: 24 June 2018 to 27 September 20182019: 10 June 2019 to 5 September 20192020: 28 May 2020 to 30 September 20202021: 1 June 2021 to 14 September 20212022: 22 June 2022 to 10 September 20222023: 29 June 2023 to 15 September 20232024: 7 June 2024 to 24 September 20242025: 30 May 2025 to 24 September 20252026: 13 June 2026 to 8 October 20261989199620052013201720212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Slater Butte California meeting 30 C (86 F).
First to last qualifying date each year at Slater Butte California
YearFirst dateLast date
19891989-07-061989-09-04
19901990-06-201990-09-30
19911991-06-091991-10-14
19921992-05-041992-10-11
19961996-06-021996-10-08
19971997-05-111997-09-24
19991999-05-231999-10-02
20002000-06-032000-09-20
20052005-05-262005-09-01
20072007-05-302007-09-11
20102010-06-242010-10-01
20122012-05-152012-10-02
20132013-06-042013-09-14
20142014-05-142014-09-20
20152015-06-072015-09-12
20162016-06-042016-09-26
20172017-05-222017-09-11
20182018-06-242018-09-27
20192019-06-102019-09-05
20202020-05-282020-09-30
20212021-06-012021-09-14
20222022-06-222022-09-10
20232023-06-292023-09-15
20242024-06-072024-09-24
20252025-05-302025-09-24
20262026-06-132026-10-08

Every Fixed Threshold

Fixed thresholds at Slater Butte California
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2668201250
35 C (95 F): Days231619965
40 C (104 F): Days1120221
90 F (32.2 C): Days2641201318
100 F (37.8 C): Days8520131
0 C (32 F): Ice days (max263119902
0 C (32 F): Frost days (min25124201234
-10 C (14 F): Days with min71119901
-20 C (-4 F): Days with min1119901
20 C (68 F): Tropical nights (min2420202110
25 C (77 F): Days with min3220222

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1989.

Download the Data

  • Data for Slater Butte 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).