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Built 2026-10-19 (19 October 2026)

Alponocan Threshold Days by Year (MXN00017060)

9 fixed thresholds counted per year at Alponocan (MXN00017060): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Alponocan Thresholds

  • Alponocan: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 1998 with 58.
  • Alponocan: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 2012 with 17.
  • Alponocan: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 2003 with 93.
  • Alponocan: days with 50 mm (1.97 in) or more of precipitation in 21 years, most in 2010 with 6.
  • 9 fixed thresholds have at least one qualifying day at Alponocan.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Alponocan Days per year at Alponocan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 93 in 2003. 02550751001982: 21983: 51984: 171986: 61988: 121989: 61991: 131993: 21994: 31995: 31996: 11998: 211999: 282000: 282001: 662002: 772003: 932004: 452005: 692006: 572007: 562008: 492009: 482010: 432011: 302012: 38198219861991199519992002200520082011
Days per year at Alponocan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 93 in 2003.
Days at or above 30 C (86 F) per year at Alponocan
YearDaysDecade average
198228
198358
1984178
198668
1988128
198968
19911310.1
1993210.1
1994310.1
1995310.1
1996110.1
19982110.1
19992810.1
20002858.8
20016658.8
20027758.8
20039358.8
20044558.8
20056958.8
20065758.8
20075658.8
20084958.8
20094858.8
20104337
20113037
20123837
First to last qualifying date each year at Alponocan For each year, a bar from the first to the last day at Alponocan meeting 30 C (86 F). 1982: 1 April 1982 to 2 April 19821983: 6 May 1983 to 9 August 19831984: 24 March 1984 to 3 May 19841986: 4 April 1986 to 11 May 19861988: 22 April 1988 to 24 June 19881989: 16 May 1989 to 29 May 19891991: 11 March 1991 to 28 April 19911993: 6 June 1993 to 10 June 19931994: 30 April 1994 to 2 May 19941995: 26 March 1995 to 23 April 19951996: 5 May 1996 to 5 May 19961998: 3 April 1998 to 14 June 19981999: 2 February 1999 to 1 June 19992000: 9 March 2000 to 14 December 20002001: 14 January 2001 to 20 August 20012002: 11 January 2002 to 28 July 20022003: 5 February 2003 to 25 July 20032004: 28 February 2004 to 25 May 20042005: 28 January 2005 to 20 July 20052006: 15 February 2006 to 10 May 20062007: 14 February 2007 to 9 December 20072008: 23 January 2008 to 2 June 20082009: 16 February 2009 to 12 May 20092010: 6 March 2010 to 27 November 20102011: 7 February 2011 to 25 May 20112012: 18 January 2012 to 6 May 20121982198819941999200320072011JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Alponocan meeting 30 C (86 F).
First to last qualifying date each year at Alponocan
YearFirst dateLast date
19821982-04-011982-04-02
19831983-05-061983-08-09
19841984-03-241984-05-03
19861986-04-041986-05-11
19881988-04-221988-06-24
19891989-05-161989-05-29
19911991-03-111991-04-28
19931993-06-061993-06-10
19941994-04-301994-05-02
19951995-03-261995-04-23
19961996-05-051996-05-05
19981998-04-031998-06-14
19991999-02-021999-06-01
20002000-03-092000-12-14
20012001-01-142001-08-20
20022002-01-112002-07-28
20032003-02-052003-07-25
20042004-02-282004-05-25
20052005-01-282005-07-20
20062006-02-152006-05-10
20072007-02-142007-12-09
20082008-01-232008-06-02
20092009-02-162009-05-12
20102010-03-062010-11-27
20112011-02-072011-05-25
20122012-01-182012-05-06

Every Fixed Threshold

Fixed thresholds at Alponocan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2693200338
35 C (95 F): Days71420031
90 F (32.2 C): Days154820032
100 F (37.8 C): Days2720037
0 C (32 F): Frost days (min3319891
10 mm (0.39 in): Days with 10 mm or more rain3258199837
25 mm (0.98 in): Days with 25 mm or more rain3217201217
50 mm (1.97 in): Days with 50 mm or more rain21620104
100 mm (3.94 in): Days with 100 mm or more rain1119811

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1982.

Download the Data

  • Data for Alponocan 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).