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Built 2026-10-19 (19 October 2026)

San Antonio Sur Threshold Days by Year (MXN00003049)

12 fixed thresholds counted per year at San Antonio Sur (MXN00003049): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Antonio Sur Thresholds

  • San Antonio Sur: days with a maximum temperature at or above 30 C (86 F) in 55 years, most in 2011 with 270.
  • San Antonio Sur: days with a maximum temperature at or above 35 C (95 F) in 55 years, most in 2011 with 187.
  • San Antonio Sur: days with a maximum temperature at or above 90 F (32.2 C) in 55 years, most in 2011 with 227.
  • San Antonio Sur: days with a maximum temperature at or above 100 F (37.8 C) in 55 years, most in 2011 with 100.
  • 12 fixed thresholds have at least one qualifying day at San Antonio Sur.
55 years with a qualifying day
Days at or above 30 C (86 F) per year at San Antonio Sur Days per year at San Antonio Sur with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 270 in 2011. 01002003001939: 1871954: 2581955: 2401956: 2351957: 2271958: 2091959: 2271960: 2061961: 2231962: 2411965: 2301966: 2421967: 2371968: 2171970: 2221971: 2391972: 2301973: 2211974: 2251975: 2211976: 1911977: 2291978: 2021979: 1991980: 2231981: 2291982: 2271983: 2031984: 2151985: 2151986: 2351987: 2271988: 2381991: 2111992: 2111993: 2111994: 2261995: 2281996: 2371997: 2321998: 2261999: 2532000: 2382001: 2282002: 2382003: 2152004: 2042005: 2342006: 2542007: 2372008: 2472009: 2322010: 2332011: 2702012: 2621939195919671974198019861994200020062012
Days per year at San Antonio Sur with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 270 in 2011.
Days at or above 30 C (86 F) per year at San Antonio Sur
YearDaysDecade average
1939187187
1954258232.7
1955240232.7
1956235232.7
1957227232.7
1958209232.7
1959227232.7
1960206228
1961223228
1962241228
1965230228
1966242228
1967237228
1968217228
1970222217.9
1971239217.9
1972230217.9
1973221217.9
1974225217.9
1975221217.9
1976191217.9
1977229217.9
1978202217.9
1979199217.9
1980223223.6
1981229223.6
1982227223.6
1983203223.6
1984215223.6
1985215223.6
1986235223.6
1987227223.6
1988238223.6
1991211226.1
1992211226.1
1993211226.1
1994226226.1
1995228226.1
1996237226.1
1997232226.1
1998226226.1
1999253226.1
2000238232.7
2001228232.7
2002238232.7
2003215232.7
2004204232.7
2005234232.7
2006254232.7
2007237232.7
2008247232.7
2009232232.7
2010233255
2011270255
2012262255
First to last qualifying date each year at San Antonio Sur For each year, a bar from the first to the last day at San Antonio Sur meeting 30 C (86 F). 1939: 9 March 1939 to 10 November 19391954: 7 January 1954 to 7 December 19541955: 14 February 1955 to 29 December 19551956: 5 January 1956 to 19 November 19561957: 9 January 1957 to 22 December 19571958: 30 January 1958 to 12 December 19581959: 13 January 1959 to 20 November 19591960: 29 February 1960 to 3 December 19601961: 12 February 1961 to 2 December 19611962: 5 February 1962 to 12 December 19621965: 19 January 1965 to 30 December 19651966: 9 March 1966 to 8 December 19661967: 24 January 1967 to 27 November 19671968: 21 February 1968 to 16 December 19681970: 23 January 1970 to 9 December 19701971: 17 January 1971 to 26 December 19711972: 18 February 1972 to 9 November 19721973: 5 February 1973 to 15 December 19731974: 16 January 1974 to 17 November 19741975: 1 March 1975 to 11 December 19751976: 7 February 1976 to 11 November 19761977: 18 February 1977 to 28 December 19771978: 5 February 1978 to 18 December 19781979: 8 March 1979 to 26 December 19791980: 4 February 1980 to 20 December 19801981: 9 February 1981 to 22 December 19811982: 18 January 1982 to 21 December 19821983: 19 February 1983 to 18 November 19831984: 17 February 1984 to 10 December 19841985: 18 February 1985 to 31 December 19851986: 5 January 1986 to 6 December 19861987: 28 January 1987 to 12 December 19871988: 5 January 1988 to 18 December 19881991: 16 February 1991 to 9 November 19911992: 23 February 1992 to 29 December 19921993: 19 February 1993 to 24 November 19931994: 5 January 1994 to 26 November 19941995: 5 February 1995 to 13 December 19951996: 14 January 1996 to 22 December 19961997: 3 January 1997 to 26 November 19971998: 2 January 1998 to 30 December 19981999: 8 January 1999 to 2 December 19992000: 16 January 2000 to 10 December 20002001: 5 January 2001 to 25 December 20012002: 23 February 2002 to 17 December 20022003: 20 January 2003 to 16 November 20032004: 18 February 2004 to 13 December 20042005: 11 January 2005 to 26 December 20052006: 2 January 2006 to 1 December 20062007: 15 February 2007 to 14 December 20072008: 4 January 2008 to 28 December 20082009: 1 January 2009 to 14 December 20092010: 17 January 2010 to 30 December 20102011: 17 January 2011 to 2 December 20112012: 2 January 2012 to 2 December 201219391960197019771984199320002007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Antonio Sur meeting 30 C (86 F).
First to last qualifying date each year at San Antonio Sur
YearFirst dateLast date
19391939-03-091939-11-10
19541954-01-071954-12-07
19551955-02-141955-12-29
19561956-01-051956-11-19
19571957-01-091957-12-22
19581958-01-301958-12-12
19591959-01-131959-11-20
19601960-02-291960-12-03
19611961-02-121961-12-02
19621962-02-051962-12-12
19651965-01-191965-12-30
19661966-03-091966-12-08
19671967-01-241967-11-27
19681968-02-211968-12-16
19701970-01-231970-12-09
19711971-01-171971-12-26
19721972-02-181972-11-09
19731973-02-051973-12-15
19741974-01-161974-11-17
19751975-03-011975-12-11
19761976-02-071976-11-11
19771977-02-181977-12-28
19781978-02-051978-12-18
19791979-03-081979-12-26
19801980-02-041980-12-20
19811981-02-091981-12-22
19821982-01-181982-12-21
19831983-02-191983-11-18
19841984-02-171984-12-10
19851985-02-181985-12-31
19861986-01-051986-12-06
19871987-01-281987-12-12
19881988-01-051988-12-18
19911991-02-161991-11-09
19921992-02-231992-12-29
19931993-02-191993-11-24
19941994-01-051994-11-26
19951995-02-051995-12-13
19961996-01-141996-12-22
19971997-01-031997-11-26
19981998-01-021998-12-30
19991999-01-081999-12-02
20002000-01-162000-12-10
20012001-01-052001-12-25
20022002-02-232002-12-17
20032003-01-202003-11-16
20042004-02-182004-12-13
20052005-01-112005-12-26
20062006-01-022006-12-01
20072007-02-152007-12-14
20082008-01-042008-12-28
20092009-01-012009-12-14
20102010-01-172010-12-30
20112011-01-172011-12-02
20122012-01-022012-12-02

Every Fixed Threshold

Fixed thresholds at San Antonio Sur
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days552702011262
35 C (95 F): Days551872011155
40 C (104 F): Days4152201147
90 F (32.2 C): Days552272011200
100 F (37.8 C): Days55100201189
20 C (68 F): Tropical nights (min551431956132
25 C (77 F): Days with min5530201020
10 mm (0.39 in): Days with 10 mm or more rain5520193914
25 mm (0.98 in): Days with 25 mm or more rain541219815
50 mm (1.97 in): Days with 50 mm or more rain45619811
100 mm (3.94 in): Days with 100 mm or more rain10320031
200 mm (7.87 in): Days with 200 mm or more rain4119761

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

  • Data for San Antonio Sur 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).