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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Plan de Ayala Threshold Days by Year (MXN00028075)

14 fixed thresholds counted per year at Plan de Ayala (MXN00028075): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Plan de Ayala Thresholds

  • Plan de Ayala: days with a maximum temperature at or above 30 C (86 F) in 46 years, most in 1961 with 301.
  • Plan de Ayala: days with a maximum temperature at or above 35 C (95 F) in 46 years, most in 1961 with 173.
  • Plan de Ayala: days with a maximum temperature at or above 90 F (32.2 C) in 46 years, most in 1961 with 236.
  • Plan de Ayala: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 2010 with 34.
  • 14 fixed thresholds have at least one qualifying day at Plan de Ayala.
46 years with a qualifying day
Days at or above 30 C (86 F) per year at Plan de Ayala Days per year at Plan de Ayala with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 301 in 1961. 01002003004001961: 3011962: 2681963: 2031964: 1811965: 2281966: 1711967: 1701968: 2001969: 1851970: 1571971: 1841972: 1691973: 1771974: 1601975: 1701976: 1341977: 1781980: 2261981: 2191982: 2231983: 2131985: 2241986: 2211987: 1991988: 2091990: 1981991: 2111992: 1741993: 1461994: 2051995: 2081996: 2431997: 1991998: 2211999: 2082000: 2042001: 1472002: 2092003: 1982004: 1882006: 1992007: 1822008: 1572009: 2082010: 1652011: 2211961196619711976198319901995200020062011
Days per year at Plan de Ayala with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 301 in 1961.
Days at or above 30 C (86 F) per year at Plan de Ayala
YearDaysDecade average
1961301211.9
1962268211.9
1963203211.9
1964181211.9
1965228211.9
1966171211.9
1967170211.9
1968200211.9
1969185211.9
1970157166.1
1971184166.1
1972169166.1
1973177166.1
1974160166.1
1975170166.1
1976134166.1
1977178166.1
1980226216.8
1981219216.8
1982223216.8
1983213216.8
1985224216.8
1986221216.8
1987199216.8
1988209216.8
1990198201.3
1991211201.3
1992174201.3
1993146201.3
1994205201.3
1995208201.3
1996243201.3
1997199201.3
1998221201.3
1999208201.3
2000204188
2001147188
2002209188
2003198188
2004188188
2006199188
2007182188
2008157188
2009208188
2010165193
2011221193
First to last qualifying date each year at Plan de Ayala For each year, a bar from the first to the last day at Plan de Ayala meeting 30 C (86 F). 1961: 22 January 1961 to 31 December 19611962: 4 January 1962 to 27 November 19621963: 10 January 1963 to 11 December 19631964: 21 January 1964 to 26 December 19641965: 25 January 1965 to 14 December 19651966: 16 February 1966 to 8 December 19661967: 15 February 1967 to 21 December 19671968: 11 January 1968 to 26 December 19681969: 22 January 1969 to 28 December 19691970: 29 January 1970 to 23 December 19701971: 3 January 1971 to 16 December 19711972: 3 January 1972 to 5 December 19721973: 20 January 1973 to 31 December 19731974: 27 January 1974 to 24 December 19741975: 9 January 1975 to 9 November 19751976: 2 January 1976 to 15 October 19761977: 19 February 1977 to 20 November 19771980: 10 January 1980 to 8 December 19801981: 7 February 1981 to 31 December 19811982: 2 January 1982 to 2 December 19821983: 9 February 1983 to 28 December 19831985: 27 January 1985 to 30 November 19851986: 7 January 1986 to 29 December 19861987: 28 January 1987 to 25 December 19871988: 17 January 1988 to 31 December 19881990: 11 January 1990 to 23 December 19901991: 14 January 1991 to 3 December 19911992: 7 January 1992 to 29 December 19921993: 9 January 1993 to 25 October 19931994: 15 January 1994 to 9 December 19941995: 6 January 1995 to 16 December 19951996: 17 January 1996 to 23 December 19961997: 3 January 1997 to 30 November 19971998: 11 January 1998 to 21 December 19981999: 9 January 1999 to 12 December 19992000: 2 January 2000 to 16 November 20002001: 25 February 2001 to 14 December 20012002: 24 January 2002 to 31 December 20022003: 22 January 2003 to 3 December 20032004: 5 January 2004 to 23 December 20042006: 1 January 2006 to 11 November 20062007: 2 February 2007 to 24 December 20072008: 9 January 2008 to 27 December 20082009: 7 January 2009 to 10 December 20092010: 21 January 2010 to 27 October 20102011: 1 February 2011 to 22 November 201119611967197319811988199520012008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Plan de Ayala meeting 30 C (86 F).
First to last qualifying date each year at Plan de Ayala
YearFirst dateLast date
19611961-01-221961-12-31
19621962-01-041962-11-27
19631963-01-101963-12-11
19641964-01-211964-12-26
19651965-01-251965-12-14
19661966-02-161966-12-08
19671967-02-151967-12-21
19681968-01-111968-12-26
19691969-01-221969-12-28
19701970-01-291970-12-23
19711971-01-031971-12-16
19721972-01-031972-12-05
19731973-01-201973-12-31
19741974-01-271974-12-24
19751975-01-091975-11-09
19761976-01-021976-10-15
19771977-02-191977-11-20
19801980-01-101980-12-08
19811981-02-071981-12-31
19821982-01-021982-12-02
19831983-02-091983-12-28
19851985-01-271985-11-30
19861986-01-071986-12-29
19871987-01-281987-12-25
19881988-01-171988-12-31
19901990-01-111990-12-23
19911991-01-141991-12-03
19921992-01-071992-12-29
19931993-01-091993-10-25
19941994-01-151994-12-09
19951995-01-061995-12-16
19961996-01-171996-12-23
19971997-01-031997-11-30
19981998-01-111998-12-21
19991999-01-091999-12-12
20002000-01-022000-11-16
20012001-02-252001-12-14
20022002-01-242002-12-31
20032003-01-222003-12-03
20042004-01-052004-12-23
20062006-01-012006-11-11
20072007-02-022007-12-24
20082008-01-092008-12-27
20092009-01-072009-12-10
20102010-01-212010-10-27
20112011-02-012011-11-22

Every Fixed Threshold

Fixed thresholds at Plan de Ayala
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days463011961221
35 C (95 F): Days46173196166
40 C (104 F): Days274519623
45 C (113 F): Days2119831
90 F (32.2 C): Days462361961111
100 F (37.8 C): Days41101196216
110 F (43.3 C): Days4319621
0 C (32 F): Frost days (min13819974
20 C (68 F): Tropical nights (min438120021
25 C (77 F): Days with min2119901
10 mm (0.39 in): Days with 10 mm or more rain4434201014
25 mm (0.98 in): Days with 25 mm or more rain431520104
50 mm (1.97 in): Days with 50 mm or more rain25419671
100 mm (3.94 in): Days with 100 mm or more rain3119771

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

  • Data for Plan de Ayala 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).