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Built 2026-10-19 (19 October 2026)

Tehuacan Threshold Days by Year (MXN00021083)

9 fixed thresholds counted per year at Tehuacan (MXN00021083): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tehuacan Thresholds

  • Tehuacan: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1979 with 20.
  • Tehuacan: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 1998 with 120.
  • Tehuacan: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1991 with 10.
  • Tehuacan: days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 2005 with 61.
  • 9 fixed thresholds have at least one qualifying day at Tehuacan.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Tehuacan Days per year at Tehuacan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 120 in 1998. 0501001501963: 341964: 401965: 551967: 251968: 181969: 551970: 481971: 411972: 381973: 751974: 461975: 571976: 541977: 741978: 741979: 791980: 701981: 471982: 671983: 841984: 671985: 771986: 911988: 641989: 481990: 471991: 991993: 561997: 841998: 1202004: 1022005: 1182006: 1132007: 1202008: 962009: 92196319681972197619801984198919972006
Days per year at Tehuacan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 120 in 1998.
Days at or above 30 C (86 F) per year at Tehuacan
YearDaysDecade average
19633437.8
19644037.8
19655537.8
19672537.8
19681837.8
19695537.8
19704858.6
19714158.6
19723858.6
19737558.6
19744658.6
19755758.6
19765458.6
19777458.6
19787458.6
19797958.6
19807068.3
19814768.3
19826768.3
19838468.3
19846768.3
19857768.3
19869168.3
19886468.3
19894868.3
19904781.2
19919981.2
19935681.2
19978481.2
199812081.2
2004102106.8
2005118106.8
2006113106.8
2007120106.8
200896106.8
200992106.8
First to last qualifying date each year at Tehuacan For each year, a bar from the first to the last day at Tehuacan meeting 30 C (86 F). 1963: 5 March 1963 to 11 June 19631964: 27 February 1964 to 11 August 19641965: 10 March 1965 to 26 September 19651967: 6 March 1967 to 11 June 19671968: 9 March 1968 to 16 September 19681969: 27 February 1969 to 20 October 19691970: 3 March 1970 to 23 October 19701971: 20 February 1971 to 16 September 19711972: 4 March 1972 to 27 October 19721973: 27 January 1973 to 18 June 19731974: 2 February 1974 to 9 June 19741975: 18 February 1975 to 26 August 19751976: 17 February 1976 to 27 November 19761977: 3 February 1977 to 5 December 19771978: 27 February 1978 to 8 December 19781979: 26 January 1979 to 26 July 19791980: 9 February 1980 to 11 November 19801981: 1 March 1981 to 4 June 19811982: 18 February 1982 to 9 October 19821983: 3 March 1983 to 5 December 19831984: 19 February 1984 to 5 November 19841985: 22 February 1985 to 12 December 19851986: 7 February 1986 to 29 December 19861988: 17 February 1988 to 17 September 19881989: 28 February 1989 to 22 November 19891990: 2 February 1990 to 22 December 19901991: 30 January 1991 to 1 November 19911993: 21 February 1993 to 14 November 19931997: 13 February 1997 to 10 December 19971998: 10 February 1998 to 16 September 19982004: 6 February 2004 to 22 December 20042005: 7 February 2005 to 23 October 20052006: 16 January 2006 to 15 November 20062007: 6 January 2007 to 25 November 20072008: 31 January 2008 to 14 November 20082009: 10 February 2009 to 22 October 200919631969197419791984199020042009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Tehuacan meeting 30 C (86 F).
First to last qualifying date each year at Tehuacan
YearFirst dateLast date
19631963-03-051963-06-11
19641964-02-271964-08-11
19651965-03-101965-09-26
19671967-03-061967-06-11
19681968-03-091968-09-16
19691969-02-271969-10-20
19701970-03-031970-10-23
19711971-02-201971-09-16
19721972-03-041972-10-27
19731973-01-271973-06-18
19741974-02-021974-06-09
19751975-02-181975-08-26
19761976-02-171976-11-27
19771977-02-031977-12-05
19781978-02-271978-12-08
19791979-01-261979-07-26
19801980-02-091980-11-11
19811981-03-011981-06-04
19821982-02-181982-10-09
19831983-03-031983-12-05
19841984-02-191984-11-05
19851985-02-221985-12-12
19861986-02-071986-12-29
19881988-02-171988-09-17
19891989-02-281989-11-22
19901990-02-021990-12-22
19911991-01-301991-11-01
19931993-02-211993-11-14
19971997-02-131997-12-10
19981998-02-101998-09-16
20042004-02-062004-12-22
20052005-02-072005-10-23
20062006-01-162006-11-15
20072007-01-062007-11-25
20082008-01-312008-11-14
20092009-02-102009-10-22

Every Fixed Threshold

Fixed thresholds at Tehuacan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days36120199892
35 C (95 F): Days183319989
90 F (32.2 C): Days3561200537
100 F (37.8 C): Days1319983
0 C (32 F): Frost days (min271119892
10 mm (0.39 in): Days with 10 mm or more rain3720197913
25 mm (0.98 in): Days with 25 mm or more rain361019913
50 mm (1.97 in): Days with 50 mm or more rain18319841
100 mm (3.94 in): Days with 100 mm or more rain1119841

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

  • Data for Tehuacan 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).