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Built 2026-10-19 (19 October 2026)

Cerro Prieto Threshold Days by Year (MXN00019011)

16 fixed thresholds counted per year at Cerro Prieto (MXN00019011): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cerro Prieto Thresholds

  • Cerro Prieto: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1965 with 39.
  • Cerro Prieto: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 2008 with 20.
  • Cerro Prieto: days with a maximum temperature at or above 30 C (86 F) in 40 years, most in 1971 with 265.
  • Cerro Prieto: days with a maximum temperature at or above 35 C (95 F) in 40 years, most in 1979 with 171.
  • 16 fixed thresholds have at least one qualifying day at Cerro Prieto.
40 years with a qualifying day
Days at or above 30 C (86 F) per year at Cerro Prieto Days per year at Cerro Prieto with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 265 in 1971. 01002003001959: 2401960: 2331961: 2111962: 2511963: 2361964: 2261965: 2251966: 1861967: 2021968: 2021969: 2121970: 2201971: 2651972: 2341973: 2221974: 2481976: 1841977: 2281978: 2281979: 2441981: 2081986: 2221990: 2021991: 2031992: 1751993: 1931994: 2101998: 2141999: 2292000: 2232001: 1922002: 2132003: 1822004: 1952005: 1982006: 2202008: 1852009: 2032010: 1862011: 2311959196319671971197619811992199920032008
Days per year at Cerro Prieto with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 265 in 1971.
Days at or above 30 C (86 F) per year at Cerro Prieto
YearDaysDecade average
1959240240
1960233218.4
1961211218.4
1962251218.4
1963236218.4
1964226218.4
1965225218.4
1966186218.4
1967202218.4
1968202218.4
1969212218.4
1970220230.3
1971265230.3
1972234230.3
1973222230.3
1974248230.3
1976184230.3
1977228230.3
1978228230.3
1979244230.3
1981208215
1986222215
1990202203.7
1991203203.7
1992175203.7
1993193203.7
1994210203.7
1998214203.7
1999229203.7
2000223201.2
2001192201.2
2002213201.2
2003182201.2
2004195201.2
2005198201.2
2006220201.2
2008185201.2
2009203201.2
2010186208.5
2011231208.5
First to last qualifying date each year at Cerro Prieto For each year, a bar from the first to the last day at Cerro Prieto meeting 30 C (86 F). 1959: 3 January 1959 to 31 December 19591960: 1 January 1960 to 6 December 19601961: 11 February 1961 to 31 December 19611962: 4 January 1962 to 16 December 19621963: 10 January 1963 to 22 November 19631964: 8 January 1964 to 31 December 19641965: 1 January 1965 to 13 December 19651966: 9 February 1966 to 23 December 19661967: 6 January 1967 to 26 November 19671968: 21 February 1968 to 28 December 19681969: 8 January 1969 to 10 December 19691970: 28 January 1970 to 28 December 19701971: 2 January 1971 to 30 December 19711972: 21 January 1972 to 23 December 19721973: 20 January 1973 to 30 December 19731974: 8 January 1974 to 23 December 19741976: 1 January 1976 to 4 October 19761977: 18 February 1977 to 25 December 19771978: 6 January 1978 to 30 December 19781979: 12 February 1979 to 28 November 19791981: 26 February 1981 to 30 December 19811986: 29 January 1986 to 23 November 19861990: 18 January 1990 to 30 December 19901991: 29 January 1991 to 19 November 19911992: 17 February 1992 to 11 November 19921993: 9 January 1993 to 13 November 19931994: 9 February 1994 to 8 December 19941998: 5 January 1998 to 21 December 19981999: 8 January 1999 to 20 November 19992000: 11 January 2000 to 28 November 20002001: 15 February 2001 to 23 November 20012002: 23 January 2002 to 10 November 20022003: 3 February 2003 to 12 November 20032004: 20 February 2004 to 21 December 20042005: 2 January 2005 to 27 December 20052006: 1 January 2006 to 14 November 20062008: 4 February 2008 to 27 December 20082009: 4 January 2009 to 15 November 20092010: 20 January 2010 to 31 December 20102011: 21 February 2011 to 22 November 201119591964196919741981199320012006JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Cerro Prieto meeting 30 C (86 F).
First to last qualifying date each year at Cerro Prieto
YearFirst dateLast date
19591959-01-031959-12-31
19601960-01-011960-12-06
19611961-02-111961-12-31
19621962-01-041962-12-16
19631963-01-101963-11-22
19641964-01-081964-12-31
19651965-01-011965-12-13
19661966-02-091966-12-23
19671967-01-061967-11-26
19681968-02-211968-12-28
19691969-01-081969-12-10
19701970-01-281970-12-28
19711971-01-021971-12-30
19721972-01-211972-12-23
19731973-01-201973-12-30
19741974-01-081974-12-23
19761976-01-011976-10-04
19771977-02-181977-12-25
19781978-01-061978-12-30
19791979-02-121979-11-28
19811981-02-261981-12-30
19861986-01-291986-11-23
19901990-01-181990-12-30
19911991-01-291991-11-19
19921992-02-171992-11-11
19931993-01-091993-11-13
19941994-02-091994-12-08
19981998-01-051998-12-21
19991999-01-081999-11-20
20002000-01-112000-11-28
20012001-02-152001-11-23
20022002-01-232002-11-10
20032003-02-032003-11-12
20042004-02-202004-12-21
20052005-01-022005-12-27
20062006-01-012006-11-14
20082008-02-042008-12-27
20092009-01-042009-11-15
20102010-01-202010-12-31
20112011-02-212011-11-22

Every Fixed Threshold

Fixed thresholds at Cerro Prieto
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days402651971231
35 C (95 F): Days401711979131
40 C (104 F): Days376319982
45 C (113 F): Days6219631
90 F (32.2 C): Days402081979182
100 F (37.8 C): Days40108197931
110 F (43.3 C): Days8719987
0 C (32 F): Ice days (max1120111
0 C (32 F): Frost days (min281819606
20 C (68 F): Tropical nights (min401881964176
25 C (77 F): Days with min3955199823
10 mm (0.39 in): Days with 10 mm or more rain423919659
25 mm (0.98 in): Days with 25 mm or more rain422020083
50 mm (1.97 in): Days with 50 mm or more rain36720032
100 mm (3.94 in): Days with 100 mm or more rain9219932
200 mm (7.87 in): Days with 200 mm or more rain1120051

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

  • Data for Cerro Prieto 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).