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

San Geronimo Threshold Days by Year (MXN00032131)

8 fixed thresholds counted per year at San Geronimo (MXN00032131): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Geronimo Thresholds

  • San Geronimo: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 2002 with 24.
  • San Geronimo: nights with a minimum temperature at or below 0 C (32 F) in 21 years, most in 2005 with 85.
  • San Geronimo: days with 25 mm (0.98 in) or more of precipitation in 20 years, most in 1991 with 7.
  • San Geronimo: days with a maximum temperature at or above 30 C (86 F) in 19 years, most in 2011 with 54.
  • 8 fixed thresholds have at least one qualifying day at San Geronimo.
19 years with a qualifying day
Days at or above 30 C (86 F) per year at San Geronimo Days per year at San Geronimo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 54 in 2011. 02040601983: 171984: 31985: 111991: 11993: 31995: 51996: 11997: 71999: 262000: 162001: 162002: 282003: 452004: 172005: 352009: 262010: 302011: 542012: 201983198519931996199920012003200520102012
Days per year at San Geronimo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 54 in 2011.
Days at or above 30 C (86 F) per year at San Geronimo
YearDaysDecade average
19831710.3
1984310.3
19851110.3
199117.2
199337.2
199557.2
199617.2
199777.2
1999267.2
20001626.1
20011626.1
20022826.1
20034526.1
20041726.1
20053526.1
20092626.1
20103034.7
20115434.7
20122034.7
First to last qualifying date each year at San Geronimo For each year, a bar from the first to the last day at San Geronimo meeting 30 C (86 F). 1983: 29 April 1983 to 19 June 19831984: 4 May 1984 to 9 June 19841985: 11 May 1985 to 2 June 19851991: 21 April 1991 to 21 April 19911993: 5 June 1993 to 7 June 19931995: 14 May 1995 to 21 May 19951996: 29 May 1996 to 29 May 19961997: 3 May 1997 to 6 August 19971999: 8 April 1999 to 12 June 19992000: 17 April 2000 to 25 May 20002001: 4 April 2001 to 30 May 20012002: 19 April 2002 to 3 June 20022003: 16 April 2003 to 12 June 20032004: 13 April 2004 to 30 May 20042005: 17 April 2005 to 18 June 20052009: 5 April 2009 to 16 June 20092010: 3 May 2010 to 27 June 20102011: 25 March 2011 to 5 August 20112012: 27 April 2012 to 18 June 20121983199119962000200320092012JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Geronimo meeting 30 C (86 F).
First to last qualifying date each year at San Geronimo
YearFirst dateLast date
19831983-04-291983-06-19
19841984-05-041984-06-09
19851985-05-111985-06-02
19911991-04-211991-04-21
19931993-06-051993-06-07
19951995-05-141995-05-21
19961996-05-291996-05-29
19971997-05-031997-08-06
19991999-04-081999-06-12
20002000-04-172000-05-25
20012001-04-042001-05-30
20022002-04-192002-06-03
20032003-04-162003-06-12
20042004-04-132004-05-30
20052005-04-172005-06-18
20092009-04-052009-06-16
20102010-05-032010-06-27
20112011-03-252011-08-05
20122012-04-272012-06-18

Every Fixed Threshold

Fixed thresholds at San Geronimo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1954201120
35 C (95 F): Days1220112
90 F (32.2 C): Days91320031
0 C (32 F): Frost days (min2185200516
-10 C (14 F): Days with min3420032
10 mm (0.39 in): Days with 10 mm or more rain2224200212
25 mm (0.98 in): Days with 25 mm or more rain20719911
50 mm (1.97 in): Days with 50 mm or more rain4119961

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1983.

Download the Data

  • Data for San Geronimo 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).