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

Las Prietas Threshold Days by Year (MXN00030091)

13 fixed thresholds counted per year at Las Prietas (MXN00030091): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Las Prietas Thresholds

  • Las Prietas: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1958 with 57.
  • Las Prietas: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1958 with 35.
  • Las Prietas: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1952 with 13.
  • Las Prietas: days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 1957 with 311.
  • 13 fixed thresholds have at least one qualifying day at Las Prietas.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Las Prietas Days per year at Las Prietas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 311 in 1957. 01002003004001952: 2331953: 2511954: 1131955: 2761956: 2531957: 3111958: 2551959: 2651960: 2781961: 2931962: 2911963: 2651964: 2651966: 2301967: 2511968: 2461969: 2431970: 2671971: 3011972: 2891973: 2641974: 2661975: 2881976: 2451977: 2611978: 2381979: 237195219551958196119641968197119741977
Days per year at Las Prietas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 311 in 1957.
Days at or above 30 C (86 F) per year at Las Prietas
YearDaysDecade average
1952233244.6
1953251244.6
1954113244.6
1955276244.6
1956253244.6
1957311244.6
1958255244.6
1959265244.6
1960278262.4
1961293262.4
1962291262.4
1963265262.4
1964265262.4
1966230262.4
1967251262.4
1968246262.4
1969243262.4
1970267265.6
1971301265.6
1972289265.6
1973264265.6
1974266265.6
1975288265.6
1976245265.6
1977261265.6
1978238265.6
1979237265.6
First to last qualifying date each year at Las Prietas For each year, a bar from the first to the last day at Las Prietas meeting 30 C (86 F). 1952: 1 January 1952 to 30 December 19521953: 7 January 1953 to 22 December 19531954: 3 January 1954 to 12 December 19541955: 1 January 1955 to 28 December 19551956: 2 January 1956 to 23 December 19561957: 3 January 1957 to 30 December 19571958: 5 January 1958 to 30 December 19581959: 3 January 1959 to 31 December 19591960: 1 January 1960 to 31 December 19601961: 6 January 1961 to 31 December 19611962: 4 January 1962 to 31 December 19621963: 2 January 1963 to 12 December 19631964: 3 January 1964 to 30 December 19641966: 1 January 1966 to 31 December 19661967: 1 January 1967 to 31 December 19671968: 1 January 1968 to 30 December 19681969: 23 January 1969 to 29 December 19691970: 11 January 1970 to 31 December 19701971: 2 January 1971 to 31 December 19711972: 1 January 1972 to 31 December 19721973: 2 January 1973 to 31 December 19731974: 2 January 1974 to 31 December 19741975: 2 January 1975 to 17 December 19751976: 2 January 1976 to 31 December 19761977: 6 January 1977 to 30 December 19771978: 1 January 1978 to 31 December 19781979: 1 January 1979 to 13 December 19791952195619601964196919731977JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Las Prietas meeting 30 C (86 F).
First to last qualifying date each year at Las Prietas
YearFirst dateLast date
19521952-01-011952-12-30
19531953-01-071953-12-22
19541954-01-031954-12-12
19551955-01-011955-12-28
19561956-01-021956-12-23
19571957-01-031957-12-30
19581958-01-051958-12-30
19591959-01-031959-12-31
19601960-01-011960-12-31
19611961-01-061961-12-31
19621962-01-041962-12-31
19631963-01-021963-12-12
19641964-01-031964-12-30
19661966-01-011966-12-31
19671967-01-011967-12-31
19681968-01-011968-12-30
19691969-01-231969-12-29
19701970-01-111970-12-31
19711971-01-021971-12-31
19721972-01-011972-12-31
19731973-01-021973-12-31
19741974-01-021974-12-31
19751975-01-021975-12-17
19761976-01-021976-12-31
19771977-01-061977-12-30
19781978-01-011978-12-31
19791979-01-011979-12-13

Every Fixed Threshold

Fixed thresholds at Las Prietas
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days273111957237
35 C (95 F): Days27134196146
40 C (104 F): Days242619612
45 C (113 F): Days1119711
90 F (32.2 C): Days272231961132
100 F (37.8 C): Days2751196111
110 F (43.3 C): Days5319713
20 C (68 F): Tropical nights (min272831961197
25 C (77 F): Days with min222819612
10 mm (0.39 in): Days with 10 mm or more rain2857195840
25 mm (0.98 in): Days with 25 mm or more rain2835195820
50 mm (1.97 in): Days with 50 mm or more rain281319523
100 mm (3.94 in): Days with 100 mm or more rain17319741

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

  • Data for Las Prietas 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).