Built 2026-10-19 (19 October 2026)

Presa Alvaro Obregon Threshold Days by Year (MXN00024173)

13 fixed thresholds counted per year at Presa Alvaro Obregon (MXN00024173): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Presa Alvaro Obregon Thresholds

  • Presa Alvaro Obregon: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1947 with 22.
  • Presa Alvaro Obregon: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1951 with 8.
  • Presa Alvaro Obregon: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 2009 with 185.
  • Presa Alvaro Obregon: days with a maximum temperature at or above 35 C (95 F) in 37 years, most in 1991 with 60.
  • 13 fixed thresholds have at least one qualifying day at Presa Alvaro Obregon.
37 years with a qualifying day
Days at or above 30 C (86 F) per year at Presa Alvaro Obregon Days per year at Presa Alvaro Obregon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 185 in 2009. 0501001502001942: 751943: 441944: 571945: 651946: 371947: 361948: 591949: 461950: 401951: 461952: 531953: 611954: 511955: 811981: 1501982: 1831983: 1471984: 1231985: 1581986: 1571987: 1541988: 1391990: 1371991: 1551992: 1111993: 1261994: 1551995: 1691997: 1702001: 1092002: 1592005: 962006: 1302007: 1022008: 1082009: 1852010: 1321942194619501954198319871992199720062010
Days per year at Presa Alvaro Obregon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 185 in 2009.
Days at or above 30 C (86 F) per year at Presa Alvaro Obregon
YearDaysDecade average
19427552.4
19434452.4
19445752.4
19456552.4
19463752.4
19473652.4
19485952.4
19494652.4
19504055.3
19514655.3
19525355.3
19536155.3
19545155.3
19558155.3
1981150151.4
1982183151.4
1983147151.4
1984123151.4
1985158151.4
1986157151.4
1987154151.4
1988139151.4
1990137146.1
1991155146.1
1992111146.1
1993126146.1
1994155146.1
1995169146.1
1997170146.1
2001109127
2002159127
200596127
2006130127
2007102127
2008108127
2009185127
2010132132
First to last qualifying date each year at Presa Alvaro Obregon For each year, a bar from the first to the last day at Presa Alvaro Obregon meeting 30 C (86 F). 1942: 22 February 1942 to 30 December 19421943: 24 January 1943 to 6 November 19431944: 8 February 1944 to 14 November 19441945: 20 February 1945 to 2 November 19451946: 1 February 1946 to 2 November 19461947: 29 January 1947 to 8 December 19471948: 27 February 1948 to 19 December 19481949: 15 February 1949 to 12 December 19491950: 11 March 1950 to 11 September 19501951: 19 February 1951 to 20 December 19511952: 1 January 1952 to 1 September 19521953: 5 February 1953 to 18 September 19531954: 14 February 1954 to 8 December 19541955: 5 February 1955 to 16 November 19551981: 1 February 1981 to 28 December 19811982: 1 January 1982 to 2 December 19821983: 30 January 1983 to 28 December 19831984: 17 January 1984 to 27 November 19841985: 17 January 1985 to 12 December 19851986: 29 January 1986 to 23 November 19861987: 17 January 1987 to 25 December 19871988: 17 January 1988 to 31 December 19881990: 19 January 1990 to 30 December 19901991: 28 January 1991 to 3 December 19911992: 14 February 1992 to 21 December 19921993: 9 January 1993 to 22 December 19931994: 27 January 1994 to 13 November 19941995: 18 January 1995 to 18 December 19951997: 4 January 1997 to 27 December 19972001: 7 January 2001 to 23 November 20012002: 23 January 2002 to 15 November 20022005: 12 January 2005 to 30 December 20052006: 1 January 2006 to 10 November 20062007: 21 February 2007 to 22 December 20072008: 7 January 2008 to 15 December 20082009: 4 January 2009 to 9 December 20092010: 19 January 2010 to 30 November 201019421947195219821987199320022009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Presa Alvaro Obregon meeting 30 C (86 F).
First to last qualifying date each year at Presa Alvaro Obregon
YearFirst dateLast date
19421942-02-221942-12-30
19431943-01-241943-11-06
19441944-02-081944-11-14
19451945-02-201945-11-02
19461946-02-011946-11-02
19471947-01-291947-12-08
19481948-02-271948-12-19
19491949-02-151949-12-12
19501950-03-111950-09-11
19511951-02-191951-12-20
19521952-01-011952-09-01
19531953-02-051953-09-18
19541954-02-141954-12-08
19551955-02-051955-11-16
19811981-02-011981-12-28
19821982-01-011982-12-02
19831983-01-301983-12-28
19841984-01-171984-11-27
19851985-01-171985-12-12
19861986-01-291986-11-23
19871987-01-171987-12-25
19881988-01-171988-12-31
19901990-01-191990-12-30
19911991-01-281991-12-03
19921992-02-141992-12-21
19931993-01-091993-12-22
19941994-01-271994-11-13
19951995-01-181995-12-18
19971997-01-041997-12-27
20012001-01-072001-11-23
20022002-01-232002-11-15
20052005-01-122005-12-30
20062006-01-012006-11-10
20072007-02-212007-12-22
20082008-01-072008-12-15
20092009-01-042009-12-09
20102010-01-192010-11-30

Every Fixed Threshold

Fixed thresholds at Presa Alvaro Obregon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days371852009132
35 C (95 F): Days3760199137
40 C (104 F): Days11619831
90 F (32.2 C): Days3799199161
100 F (37.8 C): Days242119919
0 C (32 F): Frost days (min23719971
20 C (68 F): Tropical nights (min313120077
25 C (77 F): Days with min1119421
10 mm (0.39 in): Days with 10 mm or more rain4222194722
25 mm (0.98 in): Days with 25 mm or more rain39819514
50 mm (1.97 in): Days with 50 mm or more rain14319551
100 mm (3.94 in): Days with 100 mm or more rain5219551
200 mm (7.87 in): Days with 200 mm or more rain1119551

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

  • Data for Presa Alvaro Obregon 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).