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Built 2026-10-19 (19 October 2026)

Las Hormigas Threshold Days by Year (MXN00005136)

10 fixed thresholds counted per year at Las Hormigas (MXN00005136): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Las Hormigas Thresholds

  • Las Hormigas: days with a maximum temperature at or above 30 C (86 F) in 25 years, most in 2011 with 93.
  • Las Hormigas: nights with a minimum temperature at or below 0 C (32 F) in 25 years, most in 1987 with 43.
  • Las Hormigas: days with a maximum temperature at or above 90 F (32.2 C) in 22 years, most in 1993 with 36.
  • Las Hormigas: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 1997 with 25.
  • 10 fixed thresholds have at least one qualifying day at Las Hormigas.
25 years with a qualifying day
Days at or above 30 C (86 F) per year at Las Hormigas Days per year at Las Hormigas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 93 in 2011. 02550751001983: 271984: 301987: 231988: 131990: 381991: 351992: 551993: 591994: 621995: 641996: 521997: 501998: 851999: 602000: 442001: 492004: 342005: 662006: 562007: 402008: 492009: 632010: 472011: 932012: 41198319881992199519982001200620092012
Days per year at Las Hormigas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 93 in 2011.
Days at or above 30 C (86 F) per year at Las Hormigas
YearDaysDecade average
19832723.3
19843023.3
19872323.3
19881323.3
19903856
19913556
19925556
19935956
19946256
19956456
19965256
19975056
19988556
19996056
20004450.1
20014950.1
20043450.1
20056650.1
20065650.1
20074050.1
20084950.1
20096350.1
20104760.3
20119360.3
20124160.3
First to last qualifying date each year at Las Hormigas For each year, a bar from the first to the last day at Las Hormigas meeting 30 C (86 F). 1983: 21 April 1983 to 4 October 19831984: 31 March 1984 to 22 October 19841987: 19 April 1987 to 17 September 19871988: 25 April 1988 to 9 August 19881990: 12 March 1990 to 28 November 19901991: 7 March 1991 to 23 September 19911992: 8 June 1992 to 17 November 19921993: 13 February 1993 to 19 October 19931994: 6 January 1994 to 21 October 19941995: 23 March 1995 to 26 October 19951996: 22 February 1996 to 12 August 19961997: 29 April 1997 to 26 November 19971998: 25 March 1998 to 26 August 19981999: 15 March 1999 to 15 November 19992000: 1 February 2000 to 5 October 20002001: 2 April 2001 to 25 October 20012004: 1 January 2004 to 21 October 20042005: 6 January 2005 to 11 December 20052006: 11 January 2006 to 12 December 20062007: 6 January 2007 to 12 December 20072008: 5 January 2008 to 31 July 20082009: 5 March 2009 to 6 October 20092010: 6 April 2010 to 28 October 20102011: 19 February 2011 to 28 September 20112012: 25 April 2012 to 28 August 20121983199019941998200420082012JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Las Hormigas meeting 30 C (86 F).
First to last qualifying date each year at Las Hormigas
YearFirst dateLast date
19831983-04-211983-10-04
19841984-03-311984-10-22
19871987-04-191987-09-17
19881988-04-251988-08-09
19901990-03-121990-11-28
19911991-03-071991-09-23
19921992-06-081992-11-17
19931993-02-131993-10-19
19941994-01-061994-10-21
19951995-03-231995-10-26
19961996-02-221996-08-12
19971997-04-291997-11-26
19981998-03-251998-08-26
19991999-03-151999-11-15
20002000-02-012000-10-05
20012001-04-022001-10-25
20042004-01-012004-10-21
20052005-01-062005-12-11
20062006-01-112006-12-12
20072007-01-062007-12-12
20082008-01-052008-07-31
20092009-03-052009-10-06
20102010-04-062010-10-28
20112011-02-192011-09-28
20122012-04-252012-08-28

Every Fixed Threshold

Fixed thresholds at Las Hormigas
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2593201141
35 C (95 F): Days173119933
40 C (104 F): Days3919931
90 F (32.2 C): Days2236199316
100 F (37.8 C): Days81419934
0 C (32 F): Frost days (min2543198714
-10 C (14 F): Days with min2119901
10 mm (0.39 in): Days with 10 mm or more rain2225199714
25 mm (0.98 in): Days with 25 mm or more rain21619921
50 mm (1.97 in): Days with 50 mm or more rain3119841

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1983.

Download the Data

  • Data for Las Hormigas 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).