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

San Mateo Acuitlapilco Threshold Days by Year (MXN00015099)

7 fixed thresholds counted per year at San Mateo Acuitlapilco (MXN00015099): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Mateo Acuitlapilco Thresholds

  • San Mateo Acuitlapilco: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1967 with 37.
  • San Mateo Acuitlapilco: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1965 with 8.
  • San Mateo Acuitlapilco: days with a maximum temperature at or above 30 C (86 F) in 22 years, most in 1998 with 108.
  • San Mateo Acuitlapilco: nights with a minimum temperature at or below 0 C (32 F) in 22 years, most in 1999 with 49.
  • 7 fixed thresholds have at least one qualifying day at San Mateo Acuitlapilco.
22 years with a qualifying day
Days at or above 30 C (86 F) per year at San Mateo Acuitlapilco Days per year at San Mateo Acuitlapilco with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 108 in 1998. 0501001501977: 131978: 141979: 201980: 331981: 201982: 561983: 731984: 401985: 231986: 251987: 371997: 131998: 1081999: 782001: 552002: 652003: 762005: 822006: 542008: 742009: 802011: 4519771980198319861998200220062011
Days per year at San Mateo Acuitlapilco with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 108 in 1998.
Days at or above 30 C (86 F) per year at San Mateo Acuitlapilco
YearDaysDecade average
19771315.7
19781415.7
19792015.7
19803338.4
19812038.4
19825638.4
19837338.4
19844038.4
19852338.4
19862538.4
19873738.4
19971366.3
199810866.3
19997866.3
20015569.4
20026569.4
20037669.4
20058269.4
20065469.4
20087469.4
20098069.4
20114545
First to last qualifying date each year at San Mateo Acuitlapilco For each year, a bar from the first to the last day at San Mateo Acuitlapilco meeting 30 C (86 F). 1977: 14 March 1977 to 4 April 19771978: 17 April 1978 to 12 May 19781979: 24 March 1979 to 21 October 19791980: 7 March 1980 to 17 June 19801981: 29 March 1981 to 19 May 19811982: 13 March 1982 to 29 September 19821983: 18 March 1983 to 2 July 19831984: 11 March 1984 to 7 May 19841985: 3 March 1985 to 31 May 19851986: 16 March 1986 to 1 June 19861987: 25 February 1987 to 16 September 19871997: 1 March 1997 to 28 October 19971998: 19 February 1998 to 16 August 19981999: 16 March 1999 to 5 August 19992001: 11 March 2001 to 5 September 20012002: 4 March 2002 to 10 September 20022003: 12 February 2003 to 11 October 20032005: 19 March 2005 to 10 August 20052006: 19 February 2006 to 15 May 20062008: 27 March 2008 to 29 June 20082009: 18 February 2009 to 29 October 20092011: 5 March 2011 to 19 June 201119771980198319861998200220062011JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Mateo Acuitlapilco meeting 30 C (86 F).
First to last qualifying date each year at San Mateo Acuitlapilco
YearFirst dateLast date
19771977-03-141977-04-04
19781978-04-171978-05-12
19791979-03-241979-10-21
19801980-03-071980-06-17
19811981-03-291981-05-19
19821982-03-131982-09-29
19831983-03-181983-07-02
19841984-03-111984-05-07
19851985-03-031985-05-31
19861986-03-161986-06-01
19871987-02-251987-09-16
19971997-03-011997-10-28
19981998-02-191998-08-16
19991999-03-161999-08-05
20012001-03-112001-09-05
20022002-03-042002-09-10
20032003-02-122003-10-11
20052005-03-192005-08-10
20062006-02-192006-05-15
20082008-03-272008-06-29
20092009-02-182009-10-29
20112011-03-052011-06-19

Every Fixed Threshold

Fixed thresholds at San Mateo Acuitlapilco
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days22108199845
35 C (95 F): Days61419981
90 F (32.2 C): Days164419988
0 C (32 F): Frost days (min2249199925
10 mm (0.39 in): Days with 10 mm or more rain3837196715
25 mm (0.98 in): Days with 25 mm or more rain38819654
50 mm (1.97 in): Days with 50 mm or more rain8219652

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1977.

Download the Data

  • Data for San Mateo Acuitlapilco 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).