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Built 2026-10-18 (18 October 2026)

Plan de Iguala Threshold Days by Year

13 fixed thresholds counted per year at Plan de Iguala (MXN00007336): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Plan de Iguala Thresholds

  • Plan de Iguala: days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 1988 with 366.
  • Plan de Iguala: days with a maximum temperature at or above 35 C (95 F) in 27 years, most in 2003 with 351.
  • Plan de Iguala: days with a maximum temperature at or above 90 F (32.2 C) in 27 years, most in 1992 with 364.
  • Plan de Iguala: nights with a minimum temperature at or above 20 C (68 F) in 27 years, most in 1999 with 365.
  • 13 fixed thresholds have at least one qualifying day at Plan de Iguala.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Plan de Iguala Days per year at Plan de Iguala with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 366 in 1988. 01002003004001981: 2941982: 3481983: 3261984: 2661986: 3651987: 3351988: 3661989: 3311990: 3591991: 3651992: 3661993: 3631994: 3651995: 3651996: 3661998: 3651999: 3652000: 3662001: 3612002: 3622003: 3602004: 3622007: 3632008: 3592009: 3622010: 3132011: 356198119841988199119941998200120042009
Days per year at Plan de Iguala with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 366 in 1988.
Days at or above 30 C (86 F) per year at Plan de Iguala
YearDaysDecade average
1981294328.9
1982348328.9
1983326328.9
1984266328.9
1986365328.9
1987335328.9
1988366328.9
1989331328.9
1990359364.3
1991365364.3
1992366364.3
1993363364.3
1994365364.3
1995365364.3
1996366364.3
1998365364.3
1999365364.3
2000366361.9
2001361361.9
2002362361.9
2003360361.9
2004362361.9
2007363361.9
2008359361.9
2009362361.9
2010313334.5
2011356334.5
First to last qualifying date each year at Plan de Iguala For each year, a bar from the first to the last day at Plan de Iguala meeting 30 C (86 F). 1981: 1 January 1981 to 31 December 19811982: 1 January 1982 to 31 December 19821983: 1 January 1983 to 30 November 19831984: 5 January 1984 to 31 December 19841986: 1 January 1986 to 31 December 19861987: 1 January 1987 to 31 December 19871988: 1 January 1988 to 31 December 19881989: 1 February 1989 to 31 December 19891990: 1 January 1990 to 31 December 19901991: 1 January 1991 to 31 December 19911992: 1 January 1992 to 31 December 19921993: 1 January 1993 to 31 December 19931994: 1 January 1994 to 31 December 19941995: 1 January 1995 to 31 December 19951996: 1 January 1996 to 31 December 19961998: 1 January 1998 to 31 December 19981999: 1 January 1999 to 31 December 19992000: 1 January 2000 to 31 December 20002001: 1 January 2001 to 31 December 20012002: 1 January 2002 to 31 December 20022003: 1 January 2003 to 31 December 20032004: 1 January 2004 to 31 December 20042007: 1 January 2007 to 31 December 20072008: 1 January 2008 to 31 December 20082009: 1 January 2009 to 31 December 20092010: 1 January 2010 to 31 December 20102011: 1 January 2011 to 31 December 20111981198619901994199920032009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Plan de Iguala meeting 30 C (86 F).
First to last qualifying date each year at Plan de Iguala
YearFirst dateLast date
19811981-01-011981-12-31
19821982-01-011982-12-31
19831983-01-011983-11-30
19841984-01-051984-12-31
19861986-01-011986-12-31
19871987-01-011987-12-31
19881988-01-011988-12-31
19891989-02-011989-12-31
19901990-01-011990-12-31
19911991-01-011991-12-31
19921992-01-011992-12-31
19931993-01-011993-12-31
19941994-01-011994-12-31
19951995-01-011995-12-31
19961996-01-011996-12-31
19981998-01-011998-12-31
19991999-01-011999-12-31
20002000-01-012000-12-31
20012001-01-012001-12-31
20022002-01-012002-12-31
20032003-01-012003-12-31
20042004-01-012004-12-31
20072007-01-012007-12-31
20082008-01-012008-12-31
20092009-01-012009-12-31
20102010-01-012010-12-31
20112011-01-012011-12-31

Every Fixed Threshold

Fixed thresholds at Plan de Iguala
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days273661988356
35 C (95 F): Days273512003139
40 C (104 F): Days71319831
90 F (32.2 C): Days273641992334
100 F (37.8 C): Days217320022
110 F (43.3 C): Days1120021
20 C (68 F): Tropical nights (min273651999294
25 C (77 F): Days with min1155200945
10 mm (0.39 in): Days with 10 mm or more rain2767201167
25 mm (0.98 in): Days with 25 mm or more rain2736201136
50 mm (1.97 in): Days with 50 mm or more rain2616201014
100 mm (3.94 in): Days with 100 mm or more rain12420114
200 mm (7.87 in): Days with 200 mm or more rain2119891

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1981.

Download the Data

  • Data for Plan de Iguala 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).