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Built 2026-10-19 (19 October 2026)

La Maroma Threshold Days by Year (MXN00024033)

10 fixed thresholds counted per year at La Maroma (MXN00024033): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for La Maroma Thresholds

  • La Maroma: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1973 with 18.
  • La Maroma: days with a maximum temperature at or above 30 C (86 F) in 40 years, most in 2009 with 157.
  • La Maroma: days with a maximum temperature at or above 90 F (32.2 C) in 40 years, most in 1998 with 66.
  • La Maroma: nights with a minimum temperature at or below 0 C (32 F) in 40 years, most in 2010 with 40.
  • 10 fixed thresholds have at least one qualifying day at La Maroma.
40 years with a qualifying day
Days at or above 30 C (86 F) per year at La Maroma Days per year at La Maroma with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 157 in 2009. 0501001502001966: 391967: 451968: 351969: 631970: 651971: 471972: 641973: 551974: 661975: 671976: 341977: 591978: 471979: 671983: 491984: 431985: 301986: 491987: 391988: 271989: 761990: 481991: 781992: 231993: 591994: 951995: 841996: 991997: 591998: 1262001: 912002: 932003: 962004: 582005: 1052006: 882007: 752008: 992009: 1572010: 1041966197019741978198519891993199720032007
Days per year at La Maroma with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 157 in 2009.
Days at or above 30 C (86 F) per year at La Maroma
YearDaysDecade average
19663945.5
19674545.5
19683545.5
19696345.5
19706557.1
19714757.1
19726457.1
19735557.1
19746657.1
19756757.1
19763457.1
19775957.1
19784757.1
19796757.1
19834944.7
19844344.7
19853044.7
19864944.7
19873944.7
19882744.7
19897644.7
19904874.6
19917874.6
19922374.6
19935974.6
19949574.6
19958474.6
19969974.6
19975974.6
199812674.6
20019195.8
20029395.8
20039695.8
20045895.8
200510595.8
20068895.8
20077595.8
20089995.8
200915795.8
2010104104
First to last qualifying date each year at La Maroma For each year, a bar from the first to the last day at La Maroma meeting 30 C (86 F). 1966: 12 April 1966 to 30 September 19661967: 14 March 1967 to 9 August 19671968: 31 March 1968 to 9 October 19681969: 3 April 1969 to 20 October 19691970: 30 March 1970 to 26 October 19701971: 28 February 1971 to 24 July 19711972: 4 March 1972 to 3 November 19721973: 13 February 1973 to 9 September 19731974: 3 March 1974 to 14 October 19741975: 9 January 1975 to 19 September 19751976: 11 March 1976 to 14 August 19761977: 13 March 1977 to 11 October 19771978: 23 March 1978 to 26 August 19781979: 27 March 1979 to 28 October 19791983: 25 March 1983 to 8 October 19831984: 30 March 1984 to 22 October 19841985: 3 March 1985 to 8 October 19851986: 20 February 1986 to 19 November 19861987: 16 April 1987 to 26 September 19871988: 24 March 1988 to 5 November 19881989: 1 March 1989 to 22 October 19891990: 6 March 1990 to 26 August 19901991: 6 March 1991 to 30 August 19911992: 22 March 1992 to 23 September 19921993: 12 April 1993 to 22 October 19931994: 8 February 1994 to 22 October 19941995: 20 March 1995 to 23 October 19951996: 20 February 1996 to 16 September 19961997: 3 March 1997 to 28 September 19971998: 24 February 1998 to 22 September 19982001: 10 March 2001 to 24 October 20012002: 15 March 2002 to 4 October 20022003: 2 March 2003 to 11 October 20032004: 2 March 2004 to 23 October 20042005: 24 March 2005 to 23 October 20052006: 2 March 2006 to 10 November 20062007: 23 February 2007 to 18 October 20072008: 23 February 2008 to 20 December 20082009: 8 January 2009 to 16 November 20092010: 5 March 2010 to 21 December 201019661971197619841989199420012006JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at La Maroma meeting 30 C (86 F).
First to last qualifying date each year at La Maroma
YearFirst dateLast date
19661966-04-121966-09-30
19671967-03-141967-08-09
19681968-03-311968-10-09
19691969-04-031969-10-20
19701970-03-301970-10-26
19711971-02-281971-07-24
19721972-03-041972-11-03
19731973-02-131973-09-09
19741974-03-031974-10-14
19751975-01-091975-09-19
19761976-03-111976-08-14
19771977-03-131977-10-11
19781978-03-231978-08-26
19791979-03-271979-10-28
19831983-03-251983-10-08
19841984-03-301984-10-22
19851985-03-031985-10-08
19861986-02-201986-11-19
19871987-04-161987-09-26
19881988-03-241988-11-05
19891989-03-011989-10-22
19901990-03-061990-08-26
19911991-03-061991-08-30
19921992-03-221992-09-23
19931993-04-121993-10-22
19941994-02-081994-10-22
19951995-03-201995-10-23
19961996-02-201996-09-16
19971997-03-031997-09-28
19981998-02-241998-09-22
20012001-03-102001-10-24
20022002-03-152002-10-04
20032003-03-022003-10-11
20042004-03-022004-10-23
20052005-03-242005-10-23
20062006-03-022006-11-10
20072007-02-232007-10-18
20082008-02-232008-12-20
20092009-01-082009-11-16
20102010-03-052010-12-21

Every Fixed Threshold

Fixed thresholds at La Maroma
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days401572009104
35 C (95 F): Days2636199813
90 F (32.2 C): Days4066199826
100 F (37.8 C): Days7519981
0 C (32 F): Frost days (min4040201040
20 C (68 F): Tropical nights (min3119691
10 mm (0.39 in): Days with 10 mm or more rain421819734
25 mm (0.98 in): Days with 25 mm or more rain39719766
50 mm (1.97 in): Days with 50 mm or more rain13219871
100 mm (3.94 in): Days with 100 mm or more rain1119911

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.

Download the Data

  • Data for La Maroma 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).