Built 2026-10-19 (19 October 2026)

Zacatepec Threshold Days by Year (MXN00021105)

7 fixed thresholds counted per year at Zacatepec (MXN00021105): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Zacatepec Thresholds

  • Zacatepec: nights with a minimum temperature at or below 0 C (32 F) in 23 years, most in 1970 with 68.
  • Zacatepec: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1960 with 162.
  • Zacatepec: days with a maximum temperature at or above 30 C (86 F) in 20 years, most in 1983 with 32.
  • Zacatepec: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1974 with 7.
  • 7 fixed thresholds have at least one qualifying day at Zacatepec.
20 years with a qualifying day
Days at or above 30 C (86 F) per year at Zacatepec Days per year at Zacatepec with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 32 in 1983. 0102030401958: 171959: 11960: 21963: 141964: 221969: 31970: 141971: 101972: 21973: 81975: 51976: 31977: 51978: 51979: 31980: 71981: 21982: 51983: 321984: 91958196019641970197219751977197919811983
Days per year at Zacatepec with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 32 in 1983.
Days at or above 30 C (86 F) per year at Zacatepec
YearDaysDecade average
1958179
195919
1960210.3
19631410.3
19642210.3
1969310.3
1970146.1
1971106.1
197226.1
197386.1
197556.1
197636.1
197756.1
197856.1
197936.1
1980711
1981211
1982511
19833211
1984911
First to last qualifying date each year at Zacatepec For each year, a bar from the first to the last day at Zacatepec meeting 30 C (86 F). 1958: 29 March 1958 to 29 July 19581959: 9 May 1959 to 9 May 19591960: 29 March 1960 to 16 May 19601963: 13 March 1963 to 6 June 19631964: 9 March 1964 to 10 May 19641969: 7 May 1969 to 8 June 19691970: 30 March 1970 to 6 June 19701971: 23 April 1971 to 10 May 19711972: 19 April 1972 to 23 May 19721973: 22 April 1973 to 27 May 19731975: 2 April 1975 to 7 May 19751976: 23 April 1976 to 18 October 19761977: 18 March 1977 to 31 March 19771978: 17 April 1978 to 8 May 19781979: 30 March 1979 to 12 April 19791980: 10 March 1980 to 8 August 19801981: 31 March 1981 to 17 May 19811982: 4 April 1982 to 4 June 19821983: 19 April 1983 to 12 June 19831984: 28 March 1984 to 3 May 19841958196319701973197719801983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Zacatepec meeting 30 C (86 F).
First to last qualifying date each year at Zacatepec
YearFirst dateLast date
19581958-03-291958-07-29
19591959-05-091959-05-09
19601960-03-291960-05-16
19631963-03-131963-06-06
19641964-03-091964-05-10
19691969-05-071969-06-08
19701970-03-301970-06-06
19711971-04-231971-05-10
19721972-04-191972-05-23
19731973-04-221973-05-27
19751975-04-021975-05-07
19761976-04-231976-10-18
19771977-03-181977-03-31
19781978-04-171978-05-08
19791979-03-301979-04-12
19801980-03-101980-08-08
19811981-03-311981-05-17
19821982-04-041982-06-04
19831983-04-191983-06-12
19841984-03-281984-05-03

Every Fixed Threshold

Fixed thresholds at Zacatepec
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days203219839
90 F (32.2 C): Days3419581
0 C (32 F): Frost days (min2368197043
-10 C (14 F): Days with min5319761
10 mm (0.39 in): Days with 10 mm or more rain23162196013
25 mm (0.98 in): Days with 25 mm or more rain19719742
50 mm (1.97 in): Days with 50 mm or more rain4219782

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

  • Data for Zacatepec 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).