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Built 2026-10-19 (19 October 2026)

Chilcuautla Threshold Days by Year (MXN00013097)

7 fixed thresholds counted per year at Chilcuautla (MXN00013097): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chilcuautla Thresholds

  • Chilcuautla: nights with a minimum temperature at or below 0 C (32 F) in 30 years, most in 1986 with 38.
  • Chilcuautla: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1985 with 18.
  • Chilcuautla: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1976 with 6.
  • Chilcuautla: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 2009 with 110.
  • 7 fixed thresholds have at least one qualifying day at Chilcuautla.
23 years with a qualifying day
Days at or above 30 C (86 F) per year at Chilcuautla Days per year at Chilcuautla with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 110 in 2009. 0501001501976: 391977: 651978: 741979: 721980: 951983: 841985: 551986: 781987: 921988: 1011989: 891990: 591992: 391993: 201994: 461995: 501998: 712000: 312002: 312004: 392009: 1102010: 412011: 7519761979198519881992199520022010
Days per year at Chilcuautla with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 110 in 2009.
Days at or above 30 C (86 F) per year at Chilcuautla
YearDaysDecade average
19763962.5
19776562.5
19787462.5
19797262.5
19809584.9
19838484.9
19855584.9
19867884.9
19879284.9
198810184.9
19898984.9
19905947.5
19923947.5
19932047.5
19944647.5
19955047.5
19987147.5
20003152.8
20023152.8
20043952.8
200911052.8
20104158
20117558
First to last qualifying date each year at Chilcuautla For each year, a bar from the first to the last day at Chilcuautla meeting 30 C (86 F). 1976: 19 February 1976 to 26 June 19761977: 5 January 1977 to 11 October 19771978: 27 February 1978 to 6 December 19781979: 26 January 1979 to 31 October 19791980: 20 February 1980 to 15 November 19801983: 2 March 1983 to 23 November 19831985: 24 February 1985 to 10 November 19851986: 20 February 1986 to 20 November 19861987: 18 January 1987 to 25 December 19871988: 31 January 1988 to 8 November 19881989: 8 January 1989 to 15 November 19891990: 19 January 1990 to 3 October 19901992: 6 March 1992 to 21 September 19921993: 15 February 1993 to 20 October 19931994: 29 January 1994 to 28 May 19941995: 20 February 1995 to 5 October 19951998: 5 February 1998 to 14 July 19982000: 28 March 2000 to 8 November 20002002: 27 January 2002 to 31 December 20022004: 2 January 2004 to 26 October 20042009: 14 February 2009 to 8 October 20092010: 22 January 2010 to 26 October 20102011: 14 February 2011 to 19 August 201119761979198519881992199520022010JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chilcuautla meeting 30 C (86 F).
First to last qualifying date each year at Chilcuautla
YearFirst dateLast date
19761976-02-191976-06-26
19771977-01-051977-10-11
19781978-02-271978-12-06
19791979-01-261979-10-31
19801980-02-201980-11-15
19831983-03-021983-11-23
19851985-02-241985-11-10
19861986-02-201986-11-20
19871987-01-181987-12-25
19881988-01-311988-11-08
19891989-01-081989-11-15
19901990-01-191990-10-03
19921992-03-061992-09-21
19931993-02-151993-10-20
19941994-01-291994-05-28
19951995-02-201995-10-05
19981998-02-051998-07-14
20002000-03-282000-11-08
20022002-01-272002-12-31
20042004-01-022004-10-26
20092009-02-142009-10-08
20102010-01-222010-10-26
20112011-02-142011-08-19

Every Fixed Threshold

Fixed thresholds at Chilcuautla
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days23110200975
35 C (95 F): Days1214201114
90 F (32.2 C): Days2033198326
0 C (32 F): Frost days (min303819864
10 mm (0.39 in): Days with 10 mm or more rain301819859
25 mm (0.98 in): Days with 25 mm or more rain26619761
50 mm (1.97 in): Days with 50 mm or more rain11219891

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1976.

Download the Data

  • Data for Chilcuautla 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).