Built 2026-10-19 (19 October 2026)

San Bartolo del Llano Threshold Days by Year (MXN00015085)

5 fixed thresholds counted per year at San Bartolo del Llano (MXN00015085): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Bartolo del Llano Thresholds

  • San Bartolo del Llano: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1976 with 41.
  • San Bartolo del Llano: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1976 with 10.
  • San Bartolo del Llano: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 1971 with 114.
  • San Bartolo del Llano: days with a maximum temperature at or above 30 C (86 F) in 10 years, most in 1998 with 15.
  • 5 fixed thresholds have at least one qualifying day at San Bartolo del Llano.
10 years with a qualifying day
Days at or above 30 C (86 F) per year at San Bartolo del Llano Days per year at San Bartolo del Llano with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1998. 0510151967: 11969: 21970: 101971: 71973: 31974: 11983: 41998: 151999: 12008: 11967196919701971197319741983199819992008
Days per year at San Bartolo del Llano with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1998.
Days at or above 30 C (86 F) per year at San Bartolo del Llano
YearDaysDecade average
196711.5
196921.5
1970105.3
197175.3
197335.3
197415.3
198344
1998158
199918
200811
First to last qualifying date each year at San Bartolo del Llano For each year, a bar from the first to the last day at San Bartolo del Llano meeting 30 C (86 F). 1967: 25 April 1967 to 25 April 19671969: 14 June 1969 to 15 June 19691970: 2 April 1970 to 2 May 19701971: 26 April 1971 to 2 May 19711973: 22 April 1973 to 26 May 19731974: 11 May 1974 to 11 May 19741983: 2 May 1983 to 7 May 19831998: 31 March 1998 to 12 May 19981999: 9 April 1999 to 9 April 19992008: 8 May 2008 to 8 May 200819671970197319831999JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Bartolo del Llano meeting 30 C (86 F).
First to last qualifying date each year at San Bartolo del Llano
YearFirst dateLast date
19671967-04-251967-04-25
19691969-06-141969-06-15
19701970-04-021970-05-02
19711971-04-261971-05-02
19731973-04-221973-05-26
19741974-05-111974-05-11
19831983-05-021983-05-07
19981998-03-311998-05-12
19991999-04-091999-04-09
20082008-05-082008-05-08

Every Fixed Threshold

Fixed thresholds at San Bartolo del Llano
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days101519981
0 C (32 F): Frost days (min34114197198
10 mm (0.39 in): Days with 10 mm or more rain3741197624
25 mm (0.98 in): Days with 25 mm or more rain351019763
50 mm (1.97 in): Days with 50 mm or more rain8119671

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

  • Data for San Bartolo del Llano 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).