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

Acayucan Threshold Days by Year (MXN00030001)

11 fixed thresholds counted per year at Acayucan (MXN00030001): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Acayucan Thresholds

  • Acayucan: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 1965 with 66.
  • Acayucan: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1952 with 30.
  • Acayucan: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1955 with 15.
  • Acayucan: nights with a minimum temperature at or above 20 C (68 F) in 26 years, most in 1972 with 326.
  • 11 fixed thresholds have at least one qualifying day at Acayucan.
24 years with a qualifying day
Days at or above 30 C (86 F) per year at Acayucan Days per year at Acayucan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 268 in 1977. 01002003001949: 2031950: 2161952: 2011953: 2031954: 2451955: 2291962: 2251963: 1981964: 2181965: 2011966: 1921967: 2191968: 1861970: 2171971: 2261972: 2621973: 2361974: 2091975: 2541976: 2611977: 2681978: 2581979: 2471980: 26419491953196219651968197219751978
Days per year at Acayucan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 268 in 1977.
Days at or above 30 C (86 F) per year at Acayucan
YearDaysDecade average
1949203203
1950216218.8
1952201218.8
1953203218.8
1954245218.8
1955229218.8
1962225205.6
1963198205.6
1964218205.6
1965201205.6
1966192205.6
1967219205.6
1968186205.6
1970217243.8
1971226243.8
1972262243.8
1973236243.8
1974209243.8
1975254243.8
1976261243.8
1977268243.8
1978258243.8
1979247243.8
1980264264
First to last qualifying date each year at Acayucan For each year, a bar from the first to the last day at Acayucan meeting 30 C (86 F). 1949: 4 January 1949 to 9 December 19491950: 6 January 1950 to 16 December 19501952: 1 January 1952 to 30 December 19521953: 20 January 1953 to 28 December 19531954: 10 January 1954 to 31 December 19541955: 1 January 1955 to 8 December 19551962: 26 January 1962 to 25 December 19621963: 10 January 1963 to 13 December 19631964: 19 January 1964 to 29 December 19641965: 2 January 1965 to 18 December 19651966: 10 February 1966 to 9 December 19661967: 7 January 1967 to 19 December 19671968: 21 February 1968 to 27 December 19681970: 13 January 1970 to 11 December 19701971: 3 January 1971 to 21 December 19711972: 2 January 1972 to 31 December 19721973: 5 January 1973 to 30 December 19731974: 8 January 1974 to 15 December 19741975: 9 January 1975 to 29 December 19751976: 25 January 1976 to 30 December 19761977: 6 January 1977 to 30 December 19771978: 5 January 1978 to 31 December 19781979: 1 January 1979 to 24 December 19791980: 3 January 1980 to 18 December 198019491953196219651968197219751978JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Acayucan meeting 30 C (86 F).
First to last qualifying date each year at Acayucan
YearFirst dateLast date
19491949-01-041949-12-09
19501950-01-061950-12-16
19521952-01-011952-12-30
19531953-01-201953-12-28
19541954-01-101954-12-31
19551955-01-011955-12-08
19621962-01-261962-12-25
19631963-01-101963-12-13
19641964-01-191964-12-29
19651965-01-021965-12-18
19661966-02-101966-12-09
19671967-01-071967-12-19
19681968-02-211968-12-27
19701970-01-131970-12-11
19711971-01-031971-12-21
19721972-01-021972-12-31
19731973-01-051973-12-30
19741974-01-081974-12-15
19751975-01-091975-12-29
19761976-01-251976-12-30
19771977-01-061977-12-30
19781978-01-051978-12-31
19791979-01-011979-12-24
19801980-01-031980-12-18

Every Fixed Threshold

Fixed thresholds at Acayucan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days242681977264
35 C (95 F): Days2493195481
40 C (104 F): Days744195410
90 F (32.2 C): Days241661977149
100 F (37.8 C): Days2251195429
20 C (68 F): Tropical nights (min263261972279
25 C (77 F): Days with min26130197347
10 mm (0.39 in): Days with 10 mm or more rain3266196556
25 mm (0.98 in): Days with 25 mm or more rain3230195221
50 mm (1.97 in): Days with 50 mm or more rain321519555
100 mm (3.94 in): Days with 100 mm or more rain16319742

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Acayucan 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).