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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Tehachapi 4 SE Threshold Days by Year (USC00048829)

12 fixed thresholds counted per year at Tehachapi 4 SE (USC00048829): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tehachapi 4 SE Thresholds

  • Tehachapi 4 SE: days with 10 mm (0.39 in) or more of precipitation in 13 years, most in 1998 with 22.
  • Tehachapi 4 SE: nights with a minimum temperature at or below 0 C (32 F) in 11 years, most in 2007 with 88.
  • Tehachapi 4 SE: days with 25 mm (0.98 in) or more of precipitation in 11 years, most in 2017 with 4.
  • Tehachapi 4 SE: nights with a minimum temperature at or above 20 C (68 F) in 10 years, most in 2017 with 8.
  • 12 fixed thresholds have at least one qualifying day at Tehachapi 4 SE.
9 years with a qualifying day
Days at or above 30 C (86 F) per year at Tehachapi 4 SE Days per year at Tehachapi 4 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 75 in 2018. 0204060801998: 491999: 532003: 662006: 712007: 492009: 682017: 712018: 752025: 59199819992003200620072009201720182025
Days per year at Tehachapi 4 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 75 in 2018.
Days at or above 30 C (86 F) per year at Tehachapi 4 SE
YearDaysDecade average
19984951
19995351
20036663.5
20067163.5
20074963.5
20096863.5
20177173
20187573
20255959
First to last qualifying date each year at Tehachapi 4 SE For each year, a bar from the first to the last day at Tehachapi 4 SE meeting 30 C (86 F). 1998: 6 July 1998 to 17 September 19981999: 14 June 1999 to 30 September 19992003: 21 May 2003 to 30 September 20032006: 15 May 2006 to 13 September 20062007: 13 June 2007 to 12 September 20072009: 17 May 2009 to 29 September 20092017: 5 May 2017 to 7 September 20172018: 30 May 2018 to 29 September 20182025: 11 May 2025 to 24 September 202519982003200720172025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Tehachapi 4 SE meeting 30 C (86 F).
First to last qualifying date each year at Tehachapi 4 SE
YearFirst dateLast date
19981998-07-061998-09-17
19991999-06-141999-09-30
20032003-05-212003-09-30
20062006-05-152006-09-13
20072007-06-132007-09-12
20092009-05-172009-09-29
20172017-05-052017-09-07
20182018-05-302018-09-29
20252025-05-112025-09-24

Every Fixed Threshold

Fixed thresholds at Tehachapi 4 SE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days975201859
35 C (95 F): Days81420172
90 F (32.2 C): Days939200625
100 F (37.8 C): Days2219982
0 C (32 F): Ice days (max5220072
0 C (32 F): Frost days (min1188200738
-10 C (14 F): Days with min5319983
20 C (68 F): Tropical nights (min10820172
10 mm (0.39 in): Days with 10 mm or more rain1322199813
25 mm (0.98 in): Days with 25 mm or more rain11420178
50 mm (1.97 in): Days with 50 mm or more rain3120171
10 cm (3.9 in): Days with 10 cm or more snowfall7619981

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1998.

Download the Data

  • Data for Tehachapi 4 SE 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 (2025-12-31).