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Built 2026-10-19 (19 October 2026)

Mexcaltitan Threshold Days by Year (MXN00018022)

12 fixed thresholds counted per year at Mexcaltitan (MXN00018022): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mexcaltitan Thresholds

  • Mexcaltitan: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1969 with 49.
  • Mexcaltitan: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1998 with 24.
  • Mexcaltitan: days with 50 mm (1.97 in) or more of precipitation in 39 years, most in 1997 with 11.
  • Mexcaltitan: days with a maximum temperature at or above 30 C (86 F) in 38 years, most in 1991 with 365.
  • 12 fixed thresholds have at least one qualifying day at Mexcaltitan.
38 years with a qualifying day
Days at or above 30 C (86 F) per year at Mexcaltitan Days per year at Mexcaltitan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 365 in 1991. 01002003004001971: 3141972: 3341973: 3061976: 3321977: 3451978: 3481980: 3071981: 2991982: 2381983: 2731986: 1741987: 1901988: 2071989: 1551990: 1951991: 3651992: 3511993: 2811994: 3381995: 3361996: 3171997: 2931998: 2821999: 2752000: 3592001: 3122002: 3562003: 3622004: 3322005: 3462006: 3562007: 3382008: 3532009: 3472010: 3392011: 3612012: 3632013: 3251971197719821988199219962000200420082012
Days per year at Mexcaltitan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 365 in 1991.
Days at or above 30 C (86 F) per year at Mexcaltitan
YearDaysDecade average
1971314329.8
1972334329.8
1973306329.8
1976332329.8
1977345329.8
1978348329.8
1980307230.4
1981299230.4
1982238230.4
1983273230.4
1986174230.4
1987190230.4
1988207230.4
1989155230.4
1990195303.3
1991365303.3
1992351303.3
1993281303.3
1994338303.3
1995336303.3
1996317303.3
1997293303.3
1998282303.3
1999275303.3
2000359346.1
2001312346.1
2002356346.1
2003362346.1
2004332346.1
2005346346.1
2006356346.1
2007338346.1
2008353346.1
2009347346.1
2010339347
2011361347
2012363347
2013325347
First to last qualifying date each year at Mexcaltitan For each year, a bar from the first to the last day at Mexcaltitan meeting 30 C (86 F). 1971: 11 January 1971 to 31 December 19711972: 1 January 1972 to 30 December 19721973: 4 January 1973 to 30 December 19731976: 1 January 1976 to 29 December 19761977: 1 January 1977 to 31 December 19771978: 1 January 1978 to 31 December 19781980: 1 January 1980 to 30 December 19801981: 7 January 1981 to 28 December 19811982: 9 January 1982 to 29 December 19821983: 7 January 1983 to 31 December 19831986: 5 January 1986 to 9 December 19861987: 4 January 1987 to 22 December 19871988: 4 January 1988 to 28 December 19881989: 2 January 1989 to 20 November 19891990: 10 January 1990 to 31 December 19901991: 1 January 1991 to 31 December 19911992: 1 January 1992 to 31 December 19921993: 1 January 1993 to 30 December 19931994: 1 January 1994 to 31 December 19941995: 2 January 1995 to 29 December 19951996: 8 January 1996 to 29 December 19961997: 9 February 1997 to 10 December 19971998: 21 January 1998 to 3 December 19981999: 15 January 1999 to 3 December 19992000: 1 January 2000 to 31 December 20002001: 1 January 2001 to 31 December 20012002: 1 January 2002 to 31 December 20022003: 1 January 2003 to 31 December 20032004: 1 January 2004 to 31 December 20042005: 1 January 2005 to 31 December 20052006: 1 January 2006 to 31 December 20062007: 2 January 2007 to 31 December 20072008: 1 January 2008 to 31 December 20082009: 1 January 2009 to 31 December 20092010: 1 January 2010 to 31 December 20102011: 1 January 2011 to 31 December 20112012: 1 January 2012 to 31 December 20122013: 1 January 2013 to 31 December 201319711978198619911996200120062011JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mexcaltitan meeting 30 C (86 F).
First to last qualifying date each year at Mexcaltitan
YearFirst dateLast date
19711971-01-111971-12-31
19721972-01-011972-12-30
19731973-01-041973-12-30
19761976-01-011976-12-29
19771977-01-011977-12-31
19781978-01-011978-12-31
19801980-01-011980-12-30
19811981-01-071981-12-28
19821982-01-091982-12-29
19831983-01-071983-12-31
19861986-01-051986-12-09
19871987-01-041987-12-22
19881988-01-041988-12-28
19891989-01-021989-11-20
19901990-01-101990-12-31
19911991-01-011991-12-31
19921992-01-011992-12-31
19931993-01-011993-12-30
19941994-01-011994-12-31
19951995-01-021995-12-29
19961996-01-081996-12-29
19971997-02-091997-12-10
19981998-01-211998-12-03
19991999-01-151999-12-03
20002000-01-012000-12-31
20012001-01-012001-12-31
20022002-01-012002-12-31
20032003-01-012003-12-31
20042004-01-012004-12-31
20052005-01-012005-12-31
20062006-01-012006-12-31
20072007-01-022007-12-31
20082008-01-012008-12-31
20092009-01-012009-12-31
20102010-01-012010-12-31
20112011-01-012011-12-31
20122012-01-012012-12-31
20132013-01-012013-12-31

Every Fixed Threshold

Fixed thresholds at Mexcaltitan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days383651991325
35 C (95 F): Days372372003200
40 C (104 F): Days102020124
90 F (32.2 C): Days383162012285
100 F (37.8 C): Days3278201248
20 C (68 F): Tropical nights (min382691996186
25 C (77 F): Days with min36122199755
10 mm (0.39 in): Days with 10 mm or more rain4049196927
25 mm (0.98 in): Days with 25 mm or more rain4024199814
50 mm (1.97 in): Days with 50 mm or more rain391119978
100 mm (3.94 in): Days with 100 mm or more rain26420081
200 mm (7.87 in): Days with 200 mm or more rain1119981

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1971.

Download the Data

  • Data for Mexcaltitan 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).