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

Chignahuapan Threshold Days by Year (MXN00021140)

8 fixed thresholds counted per year at Chignahuapan (MXN00021140): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chignahuapan Thresholds

  • Chignahuapan: days with 10 mm (0.39 in) or more of precipitation in 21 years, most in 2008 with 37.
  • Chignahuapan: nights with a minimum temperature at or below 0 C (32 F) in 19 years, most in 1983 with 52.
  • Chignahuapan: days with 25 mm (0.98 in) or more of precipitation in 18 years, most in 2008 with 12.
  • Chignahuapan: days with a maximum temperature at or above 30 C (86 F) in 7 years, most in 1998 with 24.
  • 8 fixed thresholds have at least one qualifying day at Chignahuapan.
7 years with a qualifying day
Days at or above 30 C (86 F) per year at Chignahuapan Days per year at Chignahuapan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 24 in 1998. 01020301978: 11983: 21984: 41991: 41998: 242005: 12009: 11978198319841991199820052009
Days per year at Chignahuapan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 24 in 1998.
Days at or above 30 C (86 F) per year at Chignahuapan
YearDaysDecade average
197811
198323
198443
1991414
19982414
200511
200911
First to last qualifying date each year at Chignahuapan For each year, a bar from the first to the last day at Chignahuapan meeting 30 C (86 F). 1978: 5 May 1978 to 5 May 19781983: 22 April 1983 to 7 May 19831984: 25 May 1984 to 29 May 19841991: 7 March 1991 to 3 December 19911998: 30 March 1998 to 15 June 19982005: 12 June 2005 to 12 June 20052009: 4 April 2009 to 4 April 20091978198319841991199820052009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chignahuapan meeting 30 C (86 F).
First to last qualifying date each year at Chignahuapan
YearFirst dateLast date
19781978-05-051978-05-05
19831983-04-221983-05-07
19841984-05-251984-05-29
19911991-03-071991-12-03
19981998-03-301998-06-15
20052005-06-122005-06-12
20092009-04-042009-04-04

Every Fixed Threshold

Fixed thresholds at Chignahuapan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days72419981
90 F (32.2 C): Days1119981
0 C (32 F): Frost days (min1952198324
-10 C (14 F): Days with min2119761
10 mm (0.39 in): Days with 10 mm or more rain2137200824
25 mm (0.98 in): Days with 25 mm or more rain181220085
50 mm (1.97 in): Days with 50 mm or more rain7420051
100 mm (3.94 in): Days with 100 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 1978.

Download the Data

  • Data for Chignahuapan 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).