Built 2026-10-19 (19 October 2026)

Sonora Pass Threshold Days by Year (USS0019L07S)

10 fixed thresholds counted per year at Sonora Pass (USS0019L07S): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sonora Pass Thresholds

  • Sonora Pass: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1982 with 52.
  • Sonora Pass: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1996 with 23.
  • Sonora Pass: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 2023 with 67.
  • Sonora Pass: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1998 with 244.
  • 10 fixed thresholds have at least one qualifying day at Sonora Pass.
4 years with a qualifying day
Days at or above 30 C (86 F) per year at Sonora Pass Days per year at Sonora Pass with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1988. 02461987: 11988: 52002: 22024: 21987198820022024
Days per year at Sonora Pass with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1988.
Days at or above 30 C (86 F) per year at Sonora Pass
YearDaysDecade average
198713
198853
200222
202422
First to last qualifying date each year at Sonora Pass For each year, a bar from the first to the last day at Sonora Pass meeting 30 C (86 F). 1987: 14 July 1987 to 14 July 19871988: 16 July 1988 to 20 July 19882002: 10 July 2002 to 11 July 20022024: 6 July 2024 to 7 July 20241987198820022024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Sonora Pass meeting 30 C (86 F).
First to last qualifying date each year at Sonora Pass
YearFirst dateLast date
19871987-07-141987-07-14
19881988-07-161988-07-20
20022002-07-102002-07-11
20242024-07-062024-07-07

Every Fixed Threshold

Fixed thresholds at Sonora Pass
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4519882
90 F (32.2 C): Days1119881
0 C (32 F): Ice days (max4167202317
0 C (32 F): Frost days (min332441998127
-10 C (14 F): Days with min3380202316
-20 C (-4 F): Days with min19519891
10 mm (0.39 in): Days with 10 mm or more rain4852198217
25 mm (0.98 in): Days with 25 mm or more rain482319966
50 mm (1.97 in): Days with 50 mm or more rain33820171
100 mm (3.94 in): Days with 100 mm or more rain4219861

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1987.

Download the Data

  • Data for Sonora Pass 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).