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Built 2026-10-19 (19 October 2026)

Santo Tomas Threshold Days by Year (MXN00002065)

15 fixed thresholds counted per year at Santo Tomas (MXN00002065): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Santo Tomas Thresholds

  • Santo Tomas: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1978 with 23.
  • Santo Tomas: days with a maximum temperature at or above 30 C (86 F) in 55 years, most in 2009 with 209.
  • Santo Tomas: days with a maximum temperature at or above 35 C (95 F) in 55 years, most in 2009 with 157.
  • Santo Tomas: days with a maximum temperature at or above 90 F (32.2 C) in 55 years, most in 2009 with 177.
  • 15 fixed thresholds have at least one qualifying day at Santo Tomas.
55 years with a qualifying day
Days at or above 30 C (86 F) per year at Santo Tomas Days per year at Santo Tomas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 209 in 2009. 01002003001949: 1291950: 1201951: 1191952: 1491953: 1531954: 1471955: 1131956: 1321957: 1241958: 1551959: 1351960: 1451961: 1581962: 1351964: 2041965: 1221966: 1211967: 1291968: 1211969: 941970: 1181971: 1161972: 1121973: 951974: 1071975: 1031976: 861977: 1401978: 1271979: 1011980: 1391981: 1321982: 1081983: 1051984: 1241985: 1231986: 1131987: 1031988: 1081989: 1241996: 1601997: 1751998: 1121999: 1572000: 1532001: 1752002: 1532003: 1602005: 1712007: 1452008: 1842009: 2092010: 1442011: 1252012: 1651949195519611968197419801986199820052012
Days per year at Santo Tomas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 209 in 2009.
Days at or above 30 C (86 F) per year at Santo Tomas
YearDaysDecade average
1949129129
1950120134.7
1951119134.7
1952149134.7
1953153134.7
1954147134.7
1955113134.7
1956132134.7
1957124134.7
1958155134.7
1959135134.7
1960145136.6
1961158136.6
1962135136.6
1964204136.6
1965122136.6
1966121136.6
1967129136.6
1968121136.6
196994136.6
1970118110.5
1971116110.5
1972112110.5
197395110.5
1974107110.5
1975103110.5
197686110.5
1977140110.5
1978127110.5
1979101110.5
1980139117.9
1981132117.9
1982108117.9
1983105117.9
1984124117.9
1985123117.9
1986113117.9
1987103117.9
1988108117.9
1989124117.9
1996160151
1997175151
1998112151
1999157151
2000153168.8
2001175168.8
2002153168.8
2003160168.8
2005171168.8
2007145168.8
2008184168.8
2009209168.8
2010144144.7
2011125144.7
2012165144.7
First to last qualifying date each year at Santo Tomas For each year, a bar from the first to the last day at Santo Tomas meeting 30 C (86 F). 1949: 10 April 1949 to 4 December 19491950: 29 March 1950 to 16 December 19501951: 24 January 1951 to 27 November 19511952: 7 February 1952 to 11 December 19521953: 5 January 1953 to 14 December 19531954: 5 January 1954 to 24 December 19541955: 15 February 1955 to 7 November 19551956: 16 March 1956 to 27 December 19561957: 10 February 1957 to 10 December 19571958: 14 April 1958 to 18 December 19581959: 16 January 1959 to 2 December 19591960: 17 March 1960 to 20 December 19601961: 15 January 1961 to 7 November 19611962: 8 January 1962 to 12 November 19621964: 1 January 1964 to 27 December 19641965: 17 January 1965 to 19 December 19651966: 14 April 1966 to 18 December 19661967: 1 March 1967 to 15 November 19671968: 24 February 1968 to 23 November 19681969: 3 January 1969 to 3 November 19691970: 10 April 1970 to 15 November 19701971: 17 January 1971 to 4 November 19711972: 16 February 1972 to 17 October 19721973: 2 May 1973 to 12 November 19731974: 16 March 1974 to 13 November 19741975: 13 January 1975 to 25 November 19751976: 15 January 1976 to 8 November 19761977: 12 February 1977 to 6 December 19771978: 16 March 1978 to 8 November 19781979: 11 May 1979 to 6 December 19791980: 8 April 1980 to 31 December 19801981: 17 February 1981 to 16 November 19811982: 10 March 1982 to 4 November 19821983: 18 May 1983 to 4 November 19831984: 20 March 1984 to 11 November 19841985: 14 February 1985 to 3 November 19851986: 11 January 1986 to 13 November 19861987: 26 January 1987 to 19 November 19871988: 12 February 1988 to 5 November 19881989: 22 February 1989 to 4 December 19891996: 11 January 1996 to 11 November 19961997: 15 February 1997 to 24 November 19971998: 22 March 1998 to 14 November 19981999: 6 January 1999 to 19 December 19992000: 12 January 2000 to 18 December 20002001: 3 January 2001 to 8 December 20012002: 7 January 2002 to 22 November 20022003: 5 January 2003 to 19 December 20032005: 17 January 2005 to 12 October 20052007: 13 March 2007 to 31 October 20072008: 22 March 2008 to 10 November 20082009: 23 March 2009 to 11 November 20092010: 13 April 2010 to 17 October 20102011: 3 June 2011 to 12 October 20112012: 2 May 2012 to 31 October 201219491956196419711978198519982007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Santo Tomas meeting 30 C (86 F).
First to last qualifying date each year at Santo Tomas
YearFirst dateLast date
19491949-04-101949-12-04
19501950-03-291950-12-16
19511951-01-241951-11-27
19521952-02-071952-12-11
19531953-01-051953-12-14
19541954-01-051954-12-24
19551955-02-151955-11-07
19561956-03-161956-12-27
19571957-02-101957-12-10
19581958-04-141958-12-18
19591959-01-161959-12-02
19601960-03-171960-12-20
19611961-01-151961-11-07
19621962-01-081962-11-12
19641964-01-011964-12-27
19651965-01-171965-12-19
19661966-04-141966-12-18
19671967-03-011967-11-15
19681968-02-241968-11-23
19691969-01-031969-11-03
19701970-04-101970-11-15
19711971-01-171971-11-04
19721972-02-161972-10-17
19731973-05-021973-11-12
19741974-03-161974-11-13
19751975-01-131975-11-25
19761976-01-151976-11-08
19771977-02-121977-12-06
19781978-03-161978-11-08
19791979-05-111979-12-06
19801980-04-081980-12-31
19811981-02-171981-11-16
19821982-03-101982-11-04
19831983-05-181983-11-04
19841984-03-201984-11-11
19851985-02-141985-11-03
19861986-01-111986-11-13
19871987-01-261987-11-19
19881988-02-121988-11-05
19891989-02-221989-12-04
19961996-01-111996-11-11
19971997-02-151997-11-24
19981998-03-221998-11-14
19991999-01-061999-12-19
20002000-01-122000-12-18
20012001-01-032001-12-08
20022002-01-072002-11-22
20032003-01-052003-12-19
20052005-01-172005-10-12
20072007-03-132007-10-31
20082008-03-222008-11-10
20092009-03-232009-11-11
20102010-04-132010-10-17
20112011-06-032011-10-12
20122012-05-022012-10-31

Every Fixed Threshold

Fixed thresholds at Santo Tomas
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days552092009165
35 C (95 F): Days551572009139
40 C (104 F): Days5494200879
45 C (113 F): Days165720085
50 C (122 F): Days1320083
90 F (32.2 C): Days551772009153
100 F (37.8 C): Days551242008102
110 F (43.3 C): Days216320086
120 F (48.9 C): Days119200819
0 C (32 F): Frost days (min524019754
20 C (68 F): Tropical nights (min422819843
25 C (77 F): Days with min4119681
10 mm (0.39 in): Days with 10 mm or more rain592319785
25 mm (0.98 in): Days with 25 mm or more rain461019802
50 mm (1.97 in): Days with 50 mm or more rain11319801

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Santo Tomas 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).