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Built 2026-10-19 (19 October 2026)

Morelos 77 Threshold Days by Year (MXN00009026)

7 fixed thresholds counted per year at Morelos 77 (MXN00009026): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Morelos 77 Thresholds

  • Morelos 77: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1992 with 28.
  • Morelos 77: days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 1982 with 76.
  • Morelos 77: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1975 with 7.
  • Morelos 77: nights with a minimum temperature at or below 0 C (32 F) in 27 years, most in 1979 with 47.
  • 7 fixed thresholds have at least one qualifying day at Morelos 77.
34 years with a qualifying day
Days at or above 30 C (86 F) per year at Morelos 77 Days per year at Morelos 77 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 1982. 0204060801956: 111957: 191958: 241959: 51960: 131961: 191962: 101963: 181964: 191965: 91966: 101967: 131970: 211971: 111972: 161973: 251974: 91975: 191977: 161978: 251979: 571980: 691981: 681982: 761983: 441984: 421985: 31988: 201989: 311990: 251991: 711992: 191993: 241996: 29195619601964197019741979198319891993
Days per year at Morelos 77 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 1982.
Days at or above 30 C (86 F) per year at Morelos 77
YearDaysDecade average
19561114.8
19571914.8
19582414.8
1959514.8
19601313.9
19611913.9
19621013.9
19631813.9
19641913.9
1965913.9
19661013.9
19671313.9
19702122.1
19711122.1
19721622.1
19732522.1
1974922.1
19751922.1
19771622.1
19782522.1
19795722.1
19806944.1
19816844.1
19827644.1
19834444.1
19844244.1
1985344.1
19882044.1
19893144.1
19902533.6
19917133.6
19921933.6
19932433.6
19962933.6
First to last qualifying date each year at Morelos 77 For each year, a bar from the first to the last day at Morelos 77 meeting 30 C (86 F). 1956: 15 March 1956 to 16 April 19561957: 21 March 1957 to 14 June 19571958: 28 February 1958 to 10 May 19581959: 12 March 1959 to 28 April 19591960: 28 March 1960 to 18 June 19601961: 12 April 1961 to 26 May 19611962: 30 March 1962 to 8 June 19621963: 15 March 1963 to 6 June 19631964: 5 April 1964 to 9 May 19641965: 6 April 1965 to 29 July 19651966: 12 May 1966 to 6 June 19661967: 22 April 1967 to 14 May 19671970: 22 March 1970 to 4 May 19701971: 23 April 1971 to 22 May 19711972: 8 April 1972 to 27 May 19721973: 13 March 1973 to 6 June 19731974: 22 April 1974 to 13 May 19741975: 2 April 1975 to 7 May 19751977: 17 March 1977 to 11 May 19771978: 18 April 1978 to 20 May 19781979: 7 April 1979 to 7 September 19791980: 7 March 1980 to 30 June 19801981: 4 March 1981 to 25 July 19811982: 1 April 1982 to 29 June 19821983: 16 February 1983 to 6 June 19831984: 10 January 1984 to 24 June 19841985: 12 May 1985 to 14 May 19851988: 21 April 1988 to 3 June 19881989: 16 March 1989 to 19 July 19891990: 13 March 1990 to 8 June 19901991: 27 February 1991 to 19 August 19911992: 17 February 1992 to 29 June 19921993: 15 February 1993 to 19 October 19931996: 3 March 1996 to 10 June 19961956196119661973197919841991JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Morelos 77 meeting 30 C (86 F).
First to last qualifying date each year at Morelos 77
YearFirst dateLast date
19561956-03-151956-04-16
19571957-03-211957-06-14
19581958-02-281958-05-10
19591959-03-121959-04-28
19601960-03-281960-06-18
19611961-04-121961-05-26
19621962-03-301962-06-08
19631963-03-151963-06-06
19641964-04-051964-05-09
19651965-04-061965-07-29
19661966-05-121966-06-06
19671967-04-221967-05-14
19701970-03-221970-05-04
19711971-04-231971-05-22
19721972-04-081972-05-27
19731973-03-131973-06-06
19741974-04-221974-05-13
19751975-04-021975-05-07
19771977-03-171977-05-11
19781978-04-181978-05-20
19791979-04-071979-09-07
19801980-03-071980-06-30
19811981-03-041981-07-25
19821982-04-011982-06-29
19831983-02-161983-06-06
19841984-01-101984-06-24
19851985-05-121985-05-14
19881988-04-211988-06-03
19891989-03-161989-07-19
19901990-03-131990-06-08
19911991-02-271991-08-19
19921992-02-171992-06-29
19931993-02-151993-10-19
19961996-03-031996-06-10

Every Fixed Threshold

Fixed thresholds at Morelos 77
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3476198229
35 C (95 F): Days2519825
90 F (32.2 C): Days132519913
0 C (32 F): Frost days (min274719791
10 mm (0.39 in): Days with 10 mm or more rain3728199212
25 mm (0.98 in): Days with 25 mm or more rain31719755
50 mm (1.97 in): Days with 50 mm or more rain8119571

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

Download the Data

  • Data for Morelos 77 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).