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Built 2026-10-19 (19 October 2026)

San Juan de Las Flores Threshold Days by Year (MXN00012069)

9 fixed thresholds counted per year at San Juan de Las Flores (MXN00012069): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Juan de Las Flores Thresholds

  • San Juan de Las Flores: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1981 with 49.
  • San Juan de Las Flores: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1984 with 29.
  • San Juan de Las Flores: days with 50 mm (1.97 in) or more of precipitation in 41 years, most in 1970 with 12.
  • San Juan de Las Flores: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 2009 with 202.
  • 9 fixed thresholds have at least one qualifying day at San Juan de Las Flores.
28 years with a qualifying day
Days at or above 30 C (86 F) per year at San Juan de Las Flores Days per year at San Juan de Las Flores with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 202 in 2009. 01002003001981: 761982: 1041983: 741984: 651985: 671987: 511988: 1221989: 531990: 911991: 1111992: 771993: 1551994: 1121995: 1381996: 1121997: 1921998: 1601999: 1772000: 1932001: 1962002: 1372003: 1052005: 1462008: 1172009: 2022010: 1272011: 1852012: 1341981198419881991199419972000200320092012
Days per year at San Juan de Las Flores with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 202 in 2009.
Days at or above 30 C (86 F) per year at San Juan de Las Flores
YearDaysDecade average
19817676.5
198210476.5
19837476.5
19846576.5
19856776.5
19875176.5
198812276.5
19895376.5
199091132.5
1991111132.5
199277132.5
1993155132.5
1994112132.5
1995138132.5
1996112132.5
1997192132.5
1998160132.5
1999177132.5
2000193156.6
2001196156.6
2002137156.6
2003105156.6
2005146156.6
2008117156.6
2009202156.6
2010127148.7
2011185148.7
2012134148.7
First to last qualifying date each year at San Juan de Las Flores For each year, a bar from the first to the last day at San Juan de Las Flores meeting 30 C (86 F). 1981: 1 January 1981 to 18 December 19811982: 9 January 1982 to 27 December 19821983: 4 January 1983 to 15 December 19831984: 9 January 1984 to 29 December 19841985: 23 January 1985 to 11 December 19851987: 3 January 1987 to 30 December 19871988: 1 January 1988 to 30 November 19881989: 16 February 1989 to 22 November 19891990: 15 January 1990 to 31 December 19901991: 1 January 1991 to 30 December 19911992: 11 January 1992 to 30 September 19921993: 20 January 1993 to 30 November 19931994: 4 January 1994 to 22 December 19941995: 1 January 1995 to 20 December 19951996: 7 January 1996 to 28 December 19961997: 1 January 1997 to 27 December 19971998: 1 January 1998 to 25 December 19981999: 5 January 1999 to 26 December 19992000: 2 January 2000 to 30 December 20002001: 3 January 2001 to 31 December 20012002: 1 January 2002 to 31 December 20022003: 2 January 2003 to 27 December 20032005: 9 January 2005 to 27 November 20052008: 1 January 2008 to 31 December 20082009: 1 January 2009 to 31 December 20092010: 1 January 2010 to 31 December 20102011: 1 January 2011 to 27 December 20112012: 3 January 2012 to 29 November 20121981198519901994199820022009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Juan de Las Flores meeting 30 C (86 F).
First to last qualifying date each year at San Juan de Las Flores
YearFirst dateLast date
19811981-01-011981-12-18
19821982-01-091982-12-27
19831983-01-041983-12-15
19841984-01-091984-12-29
19851985-01-231985-12-11
19871987-01-031987-12-30
19881988-01-011988-11-30
19891989-02-161989-11-22
19901990-01-151990-12-31
19911991-01-011991-12-30
19921992-01-111992-09-30
19931993-01-201993-11-30
19941994-01-041994-12-22
19951995-01-011995-12-20
19961996-01-071996-12-28
19971997-01-011997-12-27
19981998-01-011998-12-25
19991999-01-051999-12-26
20002000-01-022000-12-30
20012001-01-032001-12-31
20022002-01-012002-12-31
20032003-01-022003-12-27
20052005-01-092005-11-27
20082008-01-012008-12-31
20092009-01-012009-12-31
20102010-01-012010-12-31
20112011-01-012011-12-27
20122012-01-032012-11-29

Every Fixed Threshold

Fixed thresholds at San Juan de Las Flores
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days282022009134
35 C (95 F): Days513201113
90 F (32.2 C): Days256120111
20 C (68 F): Tropical nights (min272811995250
10 mm (0.39 in): Days with 10 mm or more rain4149198129
25 mm (0.98 in): Days with 25 mm or more rain412919845
50 mm (1.97 in): Days with 50 mm or more rain411219703
100 mm (3.94 in): Days with 100 mm or more rain20519841
200 mm (7.87 in): Days with 200 mm or more rain5219671

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 San Juan de Las Flores 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).