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

San Lorenzo Threshold Days by Year (MXN00008127)

11 fixed thresholds counted per year at San Lorenzo (MXN00008127): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Lorenzo Thresholds

  • San Lorenzo: days with a maximum temperature at or above 30 C (86 F) in 17 years, most in 1963 with 199.
  • San Lorenzo: days with a maximum temperature at or above 35 C (95 F) in 17 years, most in 1963 with 133.
  • San Lorenzo: days with a maximum temperature at or above 90 F (32.2 C) in 17 years, most in 1963 with 143.
  • San Lorenzo: days with 10 mm (0.39 in) or more of precipitation in 17 years, most in 1972 with 25.
  • 11 fixed thresholds have at least one qualifying day at San Lorenzo.
17 years with a qualifying day
Days at or above 30 C (86 F) per year at San Lorenzo Days per year at San Lorenzo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 199 in 1963. 0501001502001961: 1491963: 1991964: 1391965: 1551966: 1651972: 1281973: 1781974: 1791975: 1021976: 931977: 1481978: 1281979: 1551980: 1191981: 1061982: 1431983: 121196119641966197319751977197919811983
Days per year at San Lorenzo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 199 in 1963.
Days at or above 30 C (86 F) per year at San Lorenzo
YearDaysDecade average
1961149161.4
1963199161.4
1964139161.4
1965155161.4
1966165161.4
1972128138.9
1973178138.9
1974179138.9
1975102138.9
197693138.9
1977148138.9
1978128138.9
1979155138.9
1980119122.3
1981106122.3
1982143122.3
1983121122.3
First to last qualifying date each year at San Lorenzo For each year, a bar from the first to the last day at San Lorenzo meeting 30 C (86 F). 1961: 13 April 1961 to 27 October 19611963: 25 March 1963 to 27 October 19631964: 3 June 1964 to 30 October 19641965: 20 April 1965 to 17 October 19651966: 14 April 1966 to 22 October 19661972: 4 April 1972 to 19 October 19721973: 22 April 1973 to 2 December 19731974: 2 March 1974 to 19 September 19741975: 19 March 1975 to 12 November 19751976: 18 March 1976 to 3 October 19761977: 16 March 1977 to 29 October 19771978: 31 March 1978 to 10 October 19781979: 24 April 1979 to 30 October 19791980: 4 April 1980 to 5 October 19801981: 12 April 1981 to 18 November 19811982: 12 March 1982 to 27 October 19821983: 17 April 1983 to 30 September 1983196119651973197619791982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Lorenzo meeting 30 C (86 F).
First to last qualifying date each year at San Lorenzo
YearFirst dateLast date
19611961-04-131961-10-27
19631963-03-251963-10-27
19641964-06-031964-10-30
19651965-04-201965-10-17
19661966-04-141966-10-22
19721972-04-041972-10-19
19731973-04-221973-12-02
19741974-03-021974-09-19
19751975-03-191975-11-12
19761976-03-181976-10-03
19771977-03-161977-10-29
19781978-03-311978-10-10
19791979-04-241979-10-30
19801980-04-041980-10-05
19811981-04-121981-11-18
19821982-03-121982-10-27
19831983-04-171983-09-30

Every Fixed Threshold

Fixed thresholds at San Lorenzo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days171991963121
35 C (95 F): Days17133196326
40 C (104 F): Days8319633
90 F (32.2 C): Days17143196360
100 F (37.8 C): Days146719632
0 C (32 F): Frost days (min1699198099
-10 C (14 F): Days with min5219661
20 C (68 F): Tropical nights (min81919741
10 mm (0.39 in): Days with 10 mm or more rain1725197211
25 mm (0.98 in): Days with 25 mm or more rain17919812
50 mm (1.97 in): Days with 50 mm or more rain10219662

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

  • Data for San Lorenzo 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).