Built 2026-10-19 (19 October 2026)

San Francisco Tlalnepantla Threshold Days by Year (MXN00009041)

5 fixed thresholds counted per year at San Francisco Tlalnepantla (MXN00009041): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Francisco Tlalnepantla Thresholds

  • San Francisco Tlalnepantla: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 1976 with 47.
  • San Francisco Tlalnepantla: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1998 with 13.
  • San Francisco Tlalnepantla: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 1974 with 35.
  • San Francisco Tlalnepantla: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 1976 with 4.
  • 5 fixed thresholds have at least one qualifying day at San Francisco Tlalnepantla.
7 years with a qualifying day
Days at or above 30 C (86 F) per year at San Francisco Tlalnepantla Days per year at San Francisco Tlalnepantla with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 9 in 1998. 0358101983: 41998: 92001: 32002: 22003: 62005: 42011: 21983199820012002200320052011
Days per year at San Francisco Tlalnepantla with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 9 in 1998.
Days at or above 30 C (86 F) per year at San Francisco Tlalnepantla
YearDaysDecade average
198344
199899
200133.8
200223.8
200363.8
200543.8
201122
First to last qualifying date each year at San Francisco Tlalnepantla For each year, a bar from the first to the last day at San Francisco Tlalnepantla meeting 30 C (86 F). 1983: 17 May 1983 to 20 May 19831998: 16 April 1998 to 15 June 19982001: 4 April 2001 to 13 April 20012002: 2 May 2002 to 3 May 20022003: 4 May 2003 to 10 May 20032005: 4 June 2005 to 11 June 20052011: 23 May 2011 to 24 May 20111983199820012002200320052011JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Francisco Tlalnepantla meeting 30 C (86 F).
First to last qualifying date each year at San Francisco Tlalnepantla
YearFirst dateLast date
19831983-05-171983-05-20
19981998-04-161998-06-15
20012001-04-042001-04-13
20022002-05-022002-05-03
20032003-05-042003-05-10
20052005-06-042005-06-11
20112011-05-232011-05-24

Every Fixed Threshold

Fixed thresholds at San Francisco Tlalnepantla
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days7919982
0 C (32 F): Frost days (min293519742
10 mm (0.39 in): Days with 10 mm or more rain3947197626
25 mm (0.98 in): Days with 25 mm or more rain391319987
50 mm (1.97 in): Days with 50 mm or more rain19419761

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1983.

Download the Data

  • Data for San Francisco Tlalnepantla 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).