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Built 2026-10-19 (19 October 2026)

Acatepec Threshold Days by Year (MXN00021002)

7 fixed thresholds counted per year at Acatepec (MXN00021002): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Acatepec Thresholds

  • Acatepec: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1973 with 31.
  • Acatepec: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1980 with 12.
  • Acatepec: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1980 with 6.
  • Acatepec: days with a maximum temperature at or above 30 C (86 F) in 22 years, most in 1998 with 49.
  • 7 fixed thresholds have at least one qualifying day at Acatepec.
22 years with a qualifying day
Days at or above 30 C (86 F) per year at Acatepec Days per year at Acatepec with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 49 in 1998. 02040601975: 211976: 61977: 11978: 11980: 71981: 31982: 141983: 301984: 221990: 141991: 451993: 181994: 171996: 21997: 31998: 491999: 82001: 172002: 132007: 112008: 212009: 1419751978198219901994199820022009
Days per year at Acatepec with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 49 in 1998.
Days at or above 30 C (86 F) per year at Acatepec
YearDaysDecade average
1975217.3
197667.3
197717.3
197817.3
1980715.2
1981315.2
19821415.2
19833015.2
19842215.2
19901419.5
19914519.5
19931819.5
19941719.5
1996219.5
1997319.5
19984919.5
1999819.5
20011715.2
20021315.2
20071115.2
20082115.2
20091415.2
First to last qualifying date each year at Acatepec For each year, a bar from the first to the last day at Acatepec meeting 30 C (86 F). 1975: 16 March 1975 to 21 May 19751976: 12 March 1976 to 26 May 19761977: 30 March 1977 to 30 March 19771978: 22 April 1978 to 22 April 19781980: 12 March 1980 to 3 April 19801981: 31 March 1981 to 18 May 19811982: 30 March 1982 to 4 June 19821983: 20 April 1983 to 15 June 19831984: 28 March 1984 to 5 May 19841990: 11 March 1990 to 30 May 19901991: 6 March 1991 to 6 June 19911993: 31 March 1993 to 6 June 19931994: 6 March 1994 to 3 May 19941996: 26 April 1996 to 2 May 19961997: 1 May 1997 to 25 May 19971998: 28 February 1998 to 16 June 19981999: 10 April 1999 to 1 May 19992001: 12 March 2001 to 28 May 20012002: 16 March 2002 to 9 May 20022007: 1 March 2007 to 21 May 20072008: 30 March 2008 to 14 May 20082009: 28 March 2009 to 14 May 200919751978198219901994199820022009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Acatepec meeting 30 C (86 F).
First to last qualifying date each year at Acatepec
YearFirst dateLast date
19751975-03-161975-05-21
19761976-03-121976-05-26
19771977-03-301977-03-30
19781978-04-221978-04-22
19801980-03-121980-04-03
19811981-03-311981-05-18
19821982-03-301982-06-04
19831983-04-201983-06-15
19841984-03-281984-05-05
19901990-03-111990-05-30
19911991-03-061991-06-06
19931993-03-311993-06-06
19941994-03-061994-05-03
19961996-04-261996-05-02
19971997-05-011997-05-25
19981998-02-281998-06-16
19991999-04-101999-05-01
20012001-03-122001-05-28
20022002-03-162002-05-09
20072007-03-012007-05-21
20082008-03-302008-05-14
20092009-03-282009-05-14

Every Fixed Threshold

Fixed thresholds at Acatepec
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2249199814
35 C (95 F): Days1119981
90 F (32.2 C): Days81619981
0 C (32 F): Frost days (min9519972
10 mm (0.39 in): Days with 10 mm or more rain4031197320
25 mm (0.98 in): Days with 25 mm or more rain401219807
50 mm (1.97 in): Days with 50 mm or more rain26619801

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

  • Data for Acatepec 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).