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Built 2026-10-19 (19 October 2026)

La Reforma Threshold Days by Year (MXN00024073)

10 fixed thresholds counted per year at La Reforma (MXN00024073): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for La Reforma Thresholds

  • La Reforma: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1966 with 21.
  • La Reforma: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 1969 with 169.
  • La Reforma: nights with a minimum temperature at or below 0 C (32 F) in 37 years, most in 2010 with 82.
  • La Reforma: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1976 with 7.
  • 10 fixed thresholds have at least one qualifying day at La Reforma.
39 years with a qualifying day
Days at or above 30 C (86 F) per year at La Reforma Days per year at La Reforma with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 169 in 1969. 0501001502001965: 541966: 441967: 731968: 421969: 1691970: 1511971: 1081974: 331975: 461976: 191977: 381978: 441979: 481983: 351984: 171985: 91986: 161987: 51988: 351989: 351990: 241991: 321992: 351993: 611994: 901995: 731996: 881998: 851999: 982000: 902001: 702002: 382003: 372005: 572006: 532007: 422008: 582009: 702010: 711965196919751979198619901994199920032008
Days per year at La Reforma with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 169 in 1969.
Days at or above 30 C (86 F) per year at La Reforma
YearDaysDecade average
19655476.4
19664476.4
19677376.4
19684276.4
196916976.4
197015160.9
197110860.9
19743360.9
19754660.9
19761960.9
19773860.9
19784460.9
19794860.9
19833521.7
19841721.7
1985921.7
19861621.7
1987521.7
19883521.7
19893521.7
19902465.1
19913265.1
19923565.1
19936165.1
19949065.1
19957365.1
19968865.1
19988565.1
19999865.1
20009057.2
20017057.2
20023857.2
20033757.2
20055757.2
20065357.2
20074257.2
20085857.2
20097057.2
20107171
First to last qualifying date each year at La Reforma For each year, a bar from the first to the last day at La Reforma meeting 30 C (86 F). 1965: 16 March 1965 to 15 September 19651966: 11 April 1966 to 9 October 19661967: 14 March 1967 to 11 August 19671968: 27 February 1968 to 11 October 19681969: 20 March 1969 to 29 November 19691970: 30 March 1970 to 29 October 19701971: 3 January 1971 to 6 August 19711974: 3 March 1974 to 3 July 19741975: 21 March 1975 to 18 September 19751976: 22 April 1976 to 30 June 19761977: 15 March 1977 to 11 October 19771978: 22 March 1978 to 17 July 19781979: 28 March 1979 to 28 October 19791983: 18 April 1983 to 28 June 19831984: 29 March 1984 to 28 June 19841985: 29 April 1985 to 30 June 19851986: 2 April 1986 to 6 June 19861987: 19 April 1987 to 23 June 19871988: 21 April 1988 to 30 June 19881989: 23 April 1989 to 18 July 19891990: 9 April 1990 to 8 June 19901991: 17 April 1991 to 16 August 19911992: 24 March 1992 to 1 October 19921993: 28 March 1993 to 24 October 19931994: 7 March 1994 to 23 October 19941995: 21 March 1995 to 31 October 19951996: 20 February 1996 to 30 September 19961998: 24 March 1998 to 25 August 19981999: 25 March 1999 to 17 October 19992000: 14 February 2000 to 5 October 20002001: 1 April 2001 to 19 September 20012002: 13 March 2002 to 30 June 20022003: 5 April 2003 to 30 June 20032005: 28 March 2005 to 20 October 20052006: 17 February 2006 to 17 August 20062007: 22 February 2007 to 21 October 20072008: 24 February 2008 to 17 August 20082009: 26 February 2009 to 6 October 20092010: 5 April 2010 to 30 September 201019651970197719851990199520012007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at La Reforma meeting 30 C (86 F).
First to last qualifying date each year at La Reforma
YearFirst dateLast date
19651965-03-161965-09-15
19661966-04-111966-10-09
19671967-03-141967-08-11
19681968-02-271968-10-11
19691969-03-201969-11-29
19701970-03-301970-10-29
19711971-01-031971-08-06
19741974-03-031974-07-03
19751975-03-211975-09-18
19761976-04-221976-06-30
19771977-03-151977-10-11
19781978-03-221978-07-17
19791979-03-281979-10-28
19831983-04-181983-06-28
19841984-03-291984-06-28
19851985-04-291985-06-30
19861986-04-021986-06-06
19871987-04-191987-06-23
19881988-04-211988-06-30
19891989-04-231989-07-18
19901990-04-091990-06-08
19911991-04-171991-08-16
19921992-03-241992-10-01
19931993-03-281993-10-24
19941994-03-071994-10-23
19951995-03-211995-10-31
19961996-02-201996-09-30
19981998-03-241998-08-25
19991999-03-251999-10-17
20002000-02-142000-10-05
20012001-04-012001-09-19
20022002-03-132002-06-30
20032003-04-052003-06-30
20052005-03-282005-10-20
20062006-02-172006-08-17
20072007-02-222007-10-21
20082008-02-242008-08-17
20092009-02-262009-10-06
20102010-04-052010-09-30

Every Fixed Threshold

Fixed thresholds at La Reforma
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days39169196971
35 C (95 F): Days202119711
90 F (32.2 C): Days355419718
100 F (37.8 C): Days1119691
0 C (32 F): Frost days (min3782201082
-10 C (14 F): Days with min1219852
20 C (68 F): Tropical nights (min1119651
10 mm (0.39 in): Days with 10 mm or more rain402119665
25 mm (0.98 in): Days with 25 mm or more rain36719761
50 mm (1.97 in): Days with 50 mm or more rain17319671

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.

Download the Data

  • Data for La Reforma 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).