Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Calpulalpan Threshold Days by Year (MXN00029035)

9 fixed thresholds counted per year at Calpulalpan (MXN00029035): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Calpulalpan Thresholds

  • Calpulalpan: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1958 with 35.
  • Calpulalpan: days with 25 mm (0.98 in) or more of precipitation in 45 years, most in 1959 with 8.
  • Calpulalpan: nights with a minimum temperature at or below 0 C (32 F) in 19 years, most in 2008 with 251.
  • Calpulalpan: days with a maximum temperature at or above 30 C (86 F) in 12 years, most in 2008 with 278.
  • 9 fixed thresholds have at least one qualifying day at Calpulalpan.
12 years with a qualifying day
Days at or above 30 C (86 F) per year at Calpulalpan Days per year at Calpulalpan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 278 in 2008. 01002003001975: 11977: 51978: 51979: 11983: 261995: 51998: 231999: 32002: 12003: 12005: 1312008: 278197519781983199820022005
Days per year at Calpulalpan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 278 in 2008.
Days at or above 30 C (86 F) per year at Calpulalpan
YearDaysDecade average
197513
197753
197853
197913
19832626
1995510.3
19982310.3
1999310.3
20021102.8
20031102.8
2005131102.8
2008278102.8
First to last qualifying date each year at Calpulalpan For each year, a bar from the first to the last day at Calpulalpan meeting 30 C (86 F). 1975: 18 April 1975 to 18 April 19751977: 18 March 1977 to 31 March 19771978: 18 April 1978 to 9 May 19781979: 20 July 1979 to 20 July 19791983: 19 April 1983 to 12 June 19831995: 23 March 1995 to 23 April 19951998: 21 March 1998 to 15 June 19981999: 6 April 1999 to 11 April 19992002: 1 May 2002 to 1 May 20022003: 5 May 2003 to 5 May 20032005: 1 July 2005 to 31 December 20052008: 4 January 2008 to 28 December 2008197519781983199820022005JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Calpulalpan meeting 30 C (86 F).
First to last qualifying date each year at Calpulalpan
YearFirst dateLast date
19751975-04-181975-04-18
19771977-03-181977-03-31
19781978-04-181978-05-09
19791979-07-201979-07-20
19831983-04-191983-06-12
19951995-03-231995-04-23
19981998-03-211998-06-15
19991999-04-061999-04-11
20022002-05-012002-05-01
20032003-05-052003-05-05
20052005-07-012005-12-31
20082008-01-042008-12-28

Every Fixed Threshold

Fixed thresholds at Calpulalpan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days122782008278
35 C (95 F): Days245200845
90 F (32.2 C): Days41642008164
100 F (37.8 C): Days1720087
0 C (32 F): Frost days (min192512008251
-10 C (14 F): Days with min1320083
10 mm (0.39 in): Days with 10 mm or more rain4635195815
25 mm (0.98 in): Days with 25 mm or more rain45819592
50 mm (1.97 in): Days with 50 mm or more rain8319791

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

  • Data for Calpulalpan 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).