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

San Martin Chalchicuautla Threshold Days by Year (MXN00024009)

15 fixed thresholds counted per year at San Martin Chalchicuautla (MXN00024009): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Martin Chalchicuautla Thresholds

  • San Martin Chalchicuautla: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1984 with 51.
  • San Martin Chalchicuautla: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 2008 with 29.
  • San Martin Chalchicuautla: days with a maximum temperature at or above 30 C (86 F) in 44 years, most in 1989 with 246.
  • San Martin Chalchicuautla: days with a maximum temperature at or above 35 C (95 F) in 44 years, most in 2009 with 132.
  • 15 fixed thresholds have at least one qualifying day at San Martin Chalchicuautla.
44 years with a qualifying day
Days at or above 30 C (86 F) per year at San Martin Chalchicuautla Days per year at San Martin Chalchicuautla with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 246 in 1989. 01002003001961: 1751962: 2201963: 2121964: 1811965: 2041966: 1711967: 1891968: 1921970: 1821971: 2421972: 2331973: 2281974: 1961975: 2091976: 1901977: 2001978: 1941979: 1881980: 2121981: 1951982: 2051983: 2031984: 1891985: 2361986: 2161987: 1881988: 2451989: 2461990: 2291991: 2121992: 1491994: 1581996: 1911998: 2331999: 842000: 192001: 972004: 2092005: 1702006: 2072007: 1722008: 1572009: 2112010: 194196119661972197719821987199220002007
Days per year at San Martin Chalchicuautla with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 246 in 1989.
Days at or above 30 C (86 F) per year at San Martin Chalchicuautla
YearDaysDecade average
1961175193
1962220193
1963212193
1964181193
1965204193
1966171193
1967189193
1968192193
1970182206.2
1971242206.2
1972233206.2
1973228206.2
1974196206.2
1975209206.2
1976190206.2
1977200206.2
1978194206.2
1979188206.2
1980212213.5
1981195213.5
1982205213.5
1983203213.5
1984189213.5
1985236213.5
1986216213.5
1987188213.5
1988245213.5
1989246213.5
1990229179.4
1991212179.4
1992149179.4
1994158179.4
1996191179.4
1998233179.4
199984179.4
200019155.3
200197155.3
2004209155.3
2005170155.3
2006207155.3
2007172155.3
2008157155.3
2009211155.3
2010194194
First to last qualifying date each year at San Martin Chalchicuautla For each year, a bar from the first to the last day at San Martin Chalchicuautla meeting 30 C (86 F). 1961: 18 February 1961 to 12 December 19611962: 26 January 1962 to 8 November 19621963: 10 January 1963 to 11 December 19631964: 8 January 1964 to 26 December 19641965: 30 January 1965 to 13 December 19651966: 27 February 1966 to 9 December 19661967: 11 February 1967 to 18 December 19671968: 9 March 1968 to 27 November 19681970: 11 January 1970 to 30 December 19701971: 3 January 1971 to 15 December 19711972: 4 January 1972 to 30 December 19721973: 18 January 1973 to 31 December 19731974: 2 January 1974 to 19 November 19741975: 26 January 1975 to 30 November 19751976: 31 January 1976 to 27 October 19761977: 9 January 1977 to 5 December 19771978: 28 February 1978 to 3 December 19781979: 20 January 1979 to 21 November 19791980: 15 February 1980 to 17 December 19801981: 10 February 1981 to 28 December 19811982: 2 January 1982 to 24 December 19821983: 3 March 1983 to 30 November 19831984: 16 February 1984 to 26 November 19841985: 31 January 1985 to 30 December 19851986: 17 February 1986 to 23 November 19861987: 16 January 1987 to 25 December 19871988: 17 January 1988 to 31 December 19881989: 1 January 1989 to 30 December 19891990: 17 January 1990 to 14 December 19901991: 13 January 1991 to 31 December 19911992: 2 January 1992 to 25 November 19921994: 1 January 1994 to 28 December 19941996: 1 January 1996 to 18 December 19961998: 10 February 1998 to 5 December 19981999: 22 January 1999 to 23 August 19992000: 22 April 2000 to 24 August 20002001: 10 April 2001 to 22 September 20012004: 20 February 2004 to 22 December 20042005: 13 February 2005 to 27 November 20052006: 2 February 2006 to 10 November 20062007: 24 February 2007 to 3 November 20072008: 29 January 2008 to 9 December 20082009: 10 February 2009 to 9 December 20092010: 20 January 2010 to 29 November 201019611967197419801986199220012009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Martin Chalchicuautla meeting 30 C (86 F).
First to last qualifying date each year at San Martin Chalchicuautla
YearFirst dateLast date
19611961-02-181961-12-12
19621962-01-261962-11-08
19631963-01-101963-12-11
19641964-01-081964-12-26
19651965-01-301965-12-13
19661966-02-271966-12-09
19671967-02-111967-12-18
19681968-03-091968-11-27
19701970-01-111970-12-30
19711971-01-031971-12-15
19721972-01-041972-12-30
19731973-01-181973-12-31
19741974-01-021974-11-19
19751975-01-261975-11-30
19761976-01-311976-10-27
19771977-01-091977-12-05
19781978-02-281978-12-03
19791979-01-201979-11-21
19801980-02-151980-12-17
19811981-02-101981-12-28
19821982-01-021982-12-24
19831983-03-031983-11-30
19841984-02-161984-11-26
19851985-01-311985-12-30
19861986-02-171986-11-23
19871987-01-161987-12-25
19881988-01-171988-12-31
19891989-01-011989-12-30
19901990-01-171990-12-14
19911991-01-131991-12-31
19921992-01-021992-11-25
19941994-01-011994-12-28
19961996-01-011996-12-18
19981998-02-101998-12-05
19991999-01-221999-08-23
20002000-04-222000-08-24
20012001-04-102001-09-22
20042004-02-202004-12-22
20052005-02-132005-11-27
20062006-02-022006-11-10
20072007-02-242007-11-03
20082008-01-292008-12-09
20092009-02-102009-12-09
20102010-01-202010-11-29

Every Fixed Threshold

Fixed thresholds at San Martin Chalchicuautla
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days442461989194
35 C (95 F): Days44132200968
40 C (104 F): Days231719911
45 C (113 F): Days7219731
90 F (32.2 C): Days441682009121
100 F (37.8 C): Days375120096
110 F (43.3 C): Days9319711
0 C (32 F): Frost days (min2319893
20 C (68 F): Tropical nights (min412221972166
25 C (77 F): Days with min392219985
10 mm (0.39 in): Days with 10 mm or more rain4651198450
25 mm (0.98 in): Days with 25 mm or more rain4629200820
50 mm (1.97 in): Days with 50 mm or more rain4415200812
100 mm (3.94 in): Days with 100 mm or more rain31620094
200 mm (7.87 in): Days with 200 mm or more rain3119741

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 San Martin Chalchicuautla 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).