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Built 2026-10-19 (19 October 2026)

Monterrosa Threshold Days by Year (MXN00020072)

14 fixed thresholds counted per year at Monterrosa (MXN00020072): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Monterrosa Thresholds

  • Monterrosa: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 1972 with 313.
  • Monterrosa: days with a maximum temperature at or above 35 C (95 F) in 29 years, most in 1975 with 161.
  • Monterrosa: days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 1972 with 256.
  • Monterrosa: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1978 with 77.
  • 14 fixed thresholds have at least one qualifying day at Monterrosa.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Monterrosa Days per year at Monterrosa with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 313 in 1972. 01002003004001956: 2291957: 2321958: 2081959: 2091960: 2181961: 2441962: 2901963: 2731964: 2941965: 2881966: 2591967: 2861968: 2651969: 2691970: 2691971: 3091972: 3131973: 2821974: 3011975: 3021976: 2741977: 3001978: 2911979: 2621980: 2511981: 2401982: 2771983: 2561984: 1781956195919621965196819711974197719801983
Days per year at Monterrosa with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 313 in 1972.
Days at or above 30 C (86 F) per year at Monterrosa
YearDaysDecade average
1956229219.5
1957232219.5
1958208219.5
1959209219.5
1960218268.6
1961244268.6
1962290268.6
1963273268.6
1964294268.6
1965288268.6
1966259268.6
1967286268.6
1968265268.6
1969269268.6
1970269290.3
1971309290.3
1972313290.3
1973282290.3
1974301290.3
1975302290.3
1976274290.3
1977300290.3
1978291290.3
1979262290.3
1980251240.4
1981240240.4
1982277240.4
1983256240.4
1984178240.4
First to last qualifying date each year at Monterrosa For each year, a bar from the first to the last day at Monterrosa meeting 30 C (86 F). 1956: 17 January 1956 to 28 December 19561957: 9 January 1957 to 31 December 19571958: 23 January 1958 to 9 December 19581959: 21 January 1959 to 27 December 19591960: 1 January 1960 to 31 December 19601961: 17 February 1961 to 31 December 19611962: 5 January 1962 to 31 December 19621963: 1 January 1963 to 13 December 19631964: 6 January 1964 to 30 December 19641965: 1 January 1965 to 31 December 19651966: 1 January 1966 to 31 December 19661967: 1 January 1967 to 31 December 19671968: 1 January 1968 to 30 December 19681969: 7 January 1969 to 29 December 19691970: 3 January 1970 to 30 December 19701971: 2 January 1971 to 25 December 19711972: 1 January 1972 to 31 December 19721973: 1 January 1973 to 31 December 19731974: 1 January 1974 to 31 December 19741975: 2 January 1975 to 17 December 19751976: 6 January 1976 to 31 December 19761977: 1 January 1977 to 31 December 19771978: 1 January 1978 to 31 December 19781979: 1 January 1979 to 23 December 19791980: 10 January 1980 to 9 December 19801981: 24 January 1981 to 31 December 19811982: 2 January 1982 to 29 December 19821983: 20 January 1983 to 28 December 19831984: 11 February 1984 to 23 December 198419561960196419681972197619801984JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Monterrosa meeting 30 C (86 F).
First to last qualifying date each year at Monterrosa
YearFirst dateLast date
19561956-01-171956-12-28
19571957-01-091957-12-31
19581958-01-231958-12-09
19591959-01-211959-12-27
19601960-01-011960-12-31
19611961-02-171961-12-31
19621962-01-051962-12-31
19631963-01-011963-12-13
19641964-01-061964-12-30
19651965-01-011965-12-31
19661966-01-011966-12-31
19671967-01-011967-12-31
19681968-01-011968-12-30
19691969-01-071969-12-29
19701970-01-031970-12-30
19711971-01-021971-12-25
19721972-01-011972-12-31
19731973-01-011973-12-31
19741974-01-011974-12-31
19751975-01-021975-12-17
19761976-01-061976-12-31
19771977-01-011977-12-31
19781978-01-011978-12-31
19791979-01-011979-12-23
19801980-01-101980-12-09
19811981-01-241981-12-31
19821982-01-021982-12-29
19831983-01-201983-12-28
19841984-02-111984-12-23

Every Fixed Threshold

Fixed thresholds at Monterrosa
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days293131972178
35 C (95 F): Days29161197537
40 C (104 F): Days2525197512
45 C (113 F): Days1119731
90 F (32.2 C): Days29256197281
100 F (37.8 C): Days2856197522
110 F (43.3 C): Days7419731
20 C (68 F): Tropical nights (min283201975172
25 C (77 F): Days with min25123196912
10 mm (0.39 in): Days with 10 mm or more rain2977197866
25 mm (0.98 in): Days with 25 mm or more rain2946195830
50 mm (1.97 in): Days with 50 mm or more rain2919198113
100 mm (3.94 in): Days with 100 mm or more rain24519611
200 mm (7.87 in): Days with 200 mm or more rain2119681

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 Monterrosa 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).