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Built 2026-10-19 (19 October 2026)

San Mateo Etlatongo Threshold Days by Year (MXN00020265)

10 fixed thresholds counted per year at San Mateo Etlatongo (MXN00020265): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Mateo Etlatongo Thresholds

  • San Mateo Etlatongo: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1981 with 31.
  • San Mateo Etlatongo: days with 25 mm (0.98 in) or more of precipitation in 24 years, most in 2000 with 16.
  • San Mateo Etlatongo: days with a maximum temperature at or above 30 C (86 F) in 21 years, most in 2006 with 134.
  • San Mateo Etlatongo: nights with a minimum temperature at or below 0 C (32 F) in 18 years, most in 1976 with 26.
  • 10 fixed thresholds have at least one qualifying day at San Mateo Etlatongo.
21 years with a qualifying day
Days at or above 30 C (86 F) per year at San Mateo Etlatongo Days per year at San Mateo Etlatongo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 134 in 2006. 0501001501977: 31978: 41980: 11982: 11983: 191984: 201986: 41987: 41989: 101990: 31991: 31992: 12000: 342001: 472002: 522004: 382005: 1102006: 1342008: 972009: 892010: 611977198219861990200020042008
Days per year at San Mateo Etlatongo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 134 in 2006.
Days at or above 30 C (86 F) per year at San Mateo Etlatongo
YearDaysDecade average
197733.5
197843.5
198018.4
198218.4
1983198.4
1984208.4
198648.4
198748.4
1989108.4
199032.3
199132.3
199212.3
20003475.1
20014775.1
20025275.1
20043875.1
200511075.1
200613475.1
20089775.1
20098975.1
20106161
First to last qualifying date each year at San Mateo Etlatongo For each year, a bar from the first to the last day at San Mateo Etlatongo meeting 30 C (86 F). 1977: 19 March 1977 to 3 April 19771978: 17 April 1978 to 22 April 19781980: 4 April 1980 to 4 April 19801982: 2 April 1982 to 2 April 19821983: 6 May 1983 to 12 June 19831984: 4 April 1984 to 4 May 19841986: 2 April 1986 to 13 April 19861987: 26 March 1987 to 28 May 19871989: 18 May 1989 to 28 December 19891990: 23 May 1990 to 30 May 19901991: 14 April 1991 to 23 April 19911992: 9 April 1992 to 9 April 19922000: 25 February 2000 to 11 November 20002001: 29 January 2001 to 20 May 20012002: 9 February 2002 to 4 October 20022004: 23 February 2004 to 30 November 20042005: 7 February 2005 to 30 November 20052006: 3 January 2006 to 12 November 20062008: 1 February 2008 to 11 July 20082009: 17 February 2009 to 4 December 20092010: 23 January 2010 to 27 October 20101977198219861990200020042008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Mateo Etlatongo meeting 30 C (86 F).
First to last qualifying date each year at San Mateo Etlatongo
YearFirst dateLast date
19771977-03-191977-04-03
19781978-04-171978-04-22
19801980-04-041980-04-04
19821982-04-021982-04-02
19831983-05-061983-06-12
19841984-04-041984-05-04
19861986-04-021986-04-13
19871987-03-261987-05-28
19891989-05-181989-12-28
19901990-05-231990-05-30
19911991-04-141991-04-23
19921992-04-091992-04-09
20002000-02-252000-11-11
20012001-01-292001-05-20
20022002-02-092002-10-04
20042004-02-232004-11-30
20052005-02-072005-11-30
20062006-01-032006-11-12
20082008-02-012008-07-11
20092009-02-172009-12-04
20102010-01-232010-10-27

Every Fixed Threshold

Fixed thresholds at San Mateo Etlatongo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days21134200661
35 C (95 F): Days5220021
90 F (32.2 C): Days1016200815
100 F (37.8 C): Days1120051
0 C (32 F): Frost days (min182619764
20 C (68 F): Tropical nights (min110200010
10 mm (0.39 in): Days with 10 mm or more rain2431198120
25 mm (0.98 in): Days with 25 mm or more rain241620001
50 mm (1.97 in): Days with 50 mm or more rain15520002
100 mm (3.94 in): Days with 100 mm or more rain1120011

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1977.

Download the Data

  • Data for San Mateo Etlatongo 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).