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

La Chona Threshold Days by Year (MXN00028207)

13 fixed thresholds counted per year at La Chona (MXN00028207): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for La Chona Thresholds

  • La Chona: nights with a minimum temperature at or above 20 C (68 F) in 25 years, most in 2009 with 210.
  • La Chona: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 2009 with 277.
  • La Chona: days with a maximum temperature at or above 35 C (95 F) in 24 years, most in 1982 with 146.
  • La Chona: days with a maximum temperature at or above 90 F (32.2 C) in 24 years, most in 1998 with 194.
  • 13 fixed thresholds have at least one qualifying day at La Chona.
24 years with a qualifying day
Days at or above 30 C (86 F) per year at La Chona Days per year at La Chona with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 277 in 2009. 01002003001981: 2281982: 2351983: 2291984: 2181985: 2521988: 2581989: 2551990: 2441993: 2281994: 2271995: 2471996: 2241997: 2251998: 2601999: 2652000: 2572001: 2302002: 2132003: 2012005: 2502006: 2542007: 2142008: 2352009: 27719811984198919941997200020032007
Days per year at La Chona with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 277 in 2009.
Days at or above 30 C (86 F) per year at La Chona
YearDaysDecade average
1981228239.3
1982235239.3
1983229239.3
1984218239.3
1985252239.3
1988258239.3
1989255239.3
1990244240
1993228240
1994227240
1995247240
1996224240
1997225240
1998260240
1999265240
2000257236.8
2001230236.8
2002213236.8
2003201236.8
2005250236.8
2006254236.8
2007214236.8
2008235236.8
2009277236.8
First to last qualifying date each year at La Chona For each year, a bar from the first to the last day at La Chona meeting 30 C (86 F). 1981: 20 February 1981 to 28 December 19811982: 2 January 1982 to 2 December 19821983: 9 February 1983 to 28 December 19831984: 9 February 1984 to 24 December 19841985: 27 January 1985 to 30 November 19851988: 16 January 1988 to 30 December 19881989: 1 January 1989 to 28 November 19891990: 17 January 1990 to 30 December 19901993: 11 January 1993 to 13 December 19931994: 7 February 1994 to 16 December 19941995: 12 January 1995 to 17 December 19951996: 2 January 1996 to 29 December 19961997: 1 January 1997 to 28 November 19971998: 11 January 1998 to 30 December 19981999: 3 January 1999 to 31 December 19992000: 11 January 2000 to 29 November 20002001: 14 February 2001 to 7 December 20012002: 18 January 2002 to 29 November 20022003: 6 February 2003 to 23 November 20032005: 1 January 2005 to 27 December 20052006: 13 January 2006 to 29 December 20062007: 4 January 2007 to 22 December 20072008: 7 January 2008 to 31 December 20082009: 1 January 2009 to 31 December 200919811984198919941997200020032007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at La Chona meeting 30 C (86 F).
First to last qualifying date each year at La Chona
YearFirst dateLast date
19811981-02-201981-12-28
19821982-01-021982-12-02
19831983-02-091983-12-28
19841984-02-091984-12-24
19851985-01-271985-11-30
19881988-01-161988-12-30
19891989-01-011989-11-28
19901990-01-171990-12-30
19931993-01-111993-12-13
19941994-02-071994-12-16
19951995-01-121995-12-17
19961996-01-021996-12-29
19971997-01-011997-11-28
19981998-01-111998-12-30
19991999-01-031999-12-31
20002000-01-112000-11-29
20012001-02-142001-12-07
20022002-01-182002-11-29
20032003-02-062003-11-23
20052005-01-012005-12-27
20062006-01-132006-12-29
20072007-01-042007-12-22
20082008-01-072008-12-31
20092009-01-012009-12-31

Every Fixed Threshold

Fixed thresholds at La Chona
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days242772009277
35 C (95 F): Days241461982108
40 C (104 F): Days133719821
90 F (32.2 C): Days241941998187
100 F (37.8 C): Days238819821
110 F (43.3 C): Days2119821
0 C (32 F): Frost days (min17819972
20 C (68 F): Tropical nights (min252102009210
25 C (77 F): Days with min151519851
10 mm (0.39 in): Days with 10 mm or more rain2331200826
25 mm (0.98 in): Days with 25 mm or more rain2314200713
50 mm (1.97 in): Days with 50 mm or more rain23820035
100 mm (3.94 in): Days with 100 mm or more rain7220031

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 La Chona 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).