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Built 2026-10-19 (19 October 2026)

San Zacarias Threshold Days by Year (MXN00003100)

13 fixed thresholds counted per year at San Zacarias (MXN00003100): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Zacarias Thresholds

  • San Zacarias: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 1980 with 240.
  • San Zacarias: days with a maximum temperature at or above 35 C (95 F) in 36 years, most in 1997 with 124.
  • San Zacarias: days with a maximum temperature at or above 90 F (32.2 C) in 36 years, most in 2004 with 198.
  • San Zacarias: days with a maximum temperature at or above 100 F (37.8 C) in 36 years, most in 1997 with 55.
  • 13 fixed thresholds have at least one qualifying day at San Zacarias.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at San Zacarias Days per year at San Zacarias with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 240 in 1980. 01002003001975: 1791976: 1721977: 1711978: 1591979: 2111980: 2401981: 1901982: 1901983: 1801984: 2061985: 1811986: 1891987: 1881988: 1891989: 1701991: 1231992: 1611993: 1971994: 1541995: 1831996: 1801997: 2081998: 1711999: 1792000: 1732001: 2002002: 1752003: 1892004: 2362005: 1722006: 1912008: 1922009: 2022010: 1612011: 1792012: 188197519791983198719921996200020042009
Days per year at San Zacarias with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 240 in 1980.
Days at or above 30 C (86 F) per year at San Zacarias
YearDaysDecade average
1975179178.4
1976172178.4
1977171178.4
1978159178.4
1979211178.4
1980240192.3
1981190192.3
1982190192.3
1983180192.3
1984206192.3
1985181192.3
1986189192.3
1987188192.3
1988189192.3
1989170192.3
1991123172.9
1992161172.9
1993197172.9
1994154172.9
1995183172.9
1996180172.9
1997208172.9
1998171172.9
1999179172.9
2000173192.2
2001200192.2
2002175192.2
2003189192.2
2004236192.2
2005172192.2
2006191192.2
2008192192.2
2009202192.2
2010161176
2011179176
2012188176
First to last qualifying date each year at San Zacarias For each year, a bar from the first to the last day at San Zacarias meeting 30 C (86 F). 1975: 14 January 1975 to 31 December 19751976: 16 January 1976 to 25 November 19761977: 12 February 1977 to 25 December 19771978: 15 April 1978 to 22 December 19781979: 8 February 1979 to 14 December 19791980: 2 February 1980 to 31 December 19801981: 1 January 1981 to 10 December 19811982: 10 January 1982 to 24 December 19821983: 16 January 1983 to 31 December 19831984: 13 February 1984 to 9 December 19841985: 15 February 1985 to 31 December 19851986: 1 January 1986 to 22 November 19861987: 28 January 1987 to 6 December 19871988: 23 January 1988 to 3 December 19881989: 16 February 1989 to 21 November 19891991: 2 March 1991 to 28 November 19911992: 7 April 1992 to 16 November 19921993: 10 March 1993 to 10 November 19931994: 4 January 1994 to 1 November 19941995: 7 March 1995 to 6 December 19951996: 16 February 1996 to 13 December 19961997: 16 February 1997 to 21 November 19971998: 17 April 1998 to 25 October 19981999: 1 January 1999 to 2 December 19992000: 1 February 2000 to 31 December 20002001: 3 January 2001 to 20 November 20012002: 9 January 2002 to 25 November 20022003: 14 January 2003 to 16 November 20032004: 20 February 2004 to 11 November 20042005: 29 March 2005 to 3 December 20052006: 9 March 2006 to 22 November 20062008: 3 January 2008 to 24 November 20082009: 19 January 2009 to 18 November 20092010: 31 January 2010 to 5 November 20102011: 1 March 2011 to 30 November 20112012: 15 January 2012 to 27 November 201219751980198519911996200120062012JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Zacarias meeting 30 C (86 F).
First to last qualifying date each year at San Zacarias
YearFirst dateLast date
19751975-01-141975-12-31
19761976-01-161976-11-25
19771977-02-121977-12-25
19781978-04-151978-12-22
19791979-02-081979-12-14
19801980-02-021980-12-31
19811981-01-011981-12-10
19821982-01-101982-12-24
19831983-01-161983-12-31
19841984-02-131984-12-09
19851985-02-151985-12-31
19861986-01-011986-11-22
19871987-01-281987-12-06
19881988-01-231988-12-03
19891989-02-161989-11-21
19911991-03-021991-11-28
19921992-04-071992-11-16
19931993-03-101993-11-10
19941994-01-041994-11-01
19951995-03-071995-12-06
19961996-02-161996-12-13
19971997-02-161997-11-21
19981998-04-171998-10-25
19991999-01-011999-12-02
20002000-02-012000-12-31
20012001-01-032001-11-20
20022002-01-092002-11-25
20032003-01-142003-11-16
20042004-02-202004-11-11
20052005-03-292005-12-03
20062006-03-092006-11-22
20082008-01-032008-11-24
20092009-01-192009-11-18
20102010-01-312010-11-05
20112011-03-012011-11-30
20122012-01-152012-11-27

Every Fixed Threshold

Fixed thresholds at San Zacarias
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days362401980188
35 C (95 F): Days36124199791
40 C (104 F): Days262319791
45 C (113 F): Days1319853
90 F (32.2 C): Days361982004121
100 F (37.8 C): Days3655199723
110 F (43.3 C): Days2419854
0 C (32 F): Frost days (min1119761
20 C (68 F): Tropical nights (min3240198430
25 C (77 F): Days with min1119851
10 mm (0.39 in): Days with 10 mm or more rain35919837
25 mm (0.98 in): Days with 25 mm or more rain21319832
50 mm (1.97 in): Days with 50 mm or more rain3119831

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

  • Data for San Zacarias 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).