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Built 2026-10-19 (19 October 2026)

San Jacinto Threshold Days by Year (MXN00003053)

13 fixed thresholds counted per year at San Jacinto (MXN00003053): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Jacinto Thresholds

  • San Jacinto: days with 10 mm (0.39 in) or more of precipitation in 58 years, most in 1983 with 18.
  • San Jacinto: days with a maximum temperature at or above 30 C (86 F) in 57 years, most in 1956 with 279.
  • San Jacinto: days with a maximum temperature at or above 35 C (95 F) in 57 years, most in 1956 with 111.
  • San Jacinto: days with a maximum temperature at or above 90 F (32.2 C) in 57 years, most in 1962 with 176.
  • 13 fixed thresholds have at least one qualifying day at San Jacinto.
57 years with a qualifying day
Days at or above 30 C (86 F) per year at San Jacinto Days per year at San Jacinto with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 279 in 1956. 01002003001954: 2061955: 2141956: 2791957: 2251958: 2241959: 1961960: 1721961: 1831962: 2461963: 2491964: 1891965: 2151966: 2011967: 2021968: 1441970: 2041971: 1801972: 1891973: 1111974: 1931975: 1571976: 1891977: 2201978: 1891979: 1421980: 1961981: 1891982: 2011983: 1901984: 1971985: 2081986: 2161987: 2491988: 1611989: 1631991: 1781992: 2231993: 2251994: 2321995: 2291996: 2011997: 1891998: 2111999: 1802000: 1602001: 2012002: 1622003: 1912004: 1882005: 1692006: 2082007: 1582008: 1842009: 1802010: 1332011: 1692012: 1911954196019661973197919851992199820042010
Days per year at San Jacinto with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 279 in 1956.
Days at or above 30 C (86 F) per year at San Jacinto
YearDaysDecade average
1954206224
1955214224
1956279224
1957225224
1958224224
1959196224
1960172200.1
1961183200.1
1962246200.1
1963249200.1
1964189200.1
1965215200.1
1966201200.1
1967202200.1
1968144200.1
1970204177.4
1971180177.4
1972189177.4
1973111177.4
1974193177.4
1975157177.4
1976189177.4
1977220177.4
1978189177.4
1979142177.4
1980196197
1981189197
1982201197
1983190197
1984197197
1985208197
1986216197
1987249197
1988161197
1989163197
1991178207.6
1992223207.6
1993225207.6
1994232207.6
1995229207.6
1996201207.6
1997189207.6
1998211207.6
1999180207.6
2000160180.1
2001201180.1
2002162180.1
2003191180.1
2004188180.1
2005169180.1
2006208180.1
2007158180.1
2008184180.1
2009180180.1
2010133164.3
2011169164.3
2012191164.3
First to last qualifying date each year at San Jacinto For each year, a bar from the first to the last day at San Jacinto meeting 30 C (86 F). 1954: 4 January 1954 to 21 December 19541955: 11 February 1955 to 31 December 19551956: 2 January 1956 to 31 December 19561957: 1 January 1957 to 28 December 19571958: 1 January 1958 to 18 December 19581959: 7 January 1959 to 8 December 19591960: 3 February 1960 to 21 December 19601961: 11 February 1961 to 23 December 19611962: 4 February 1962 to 22 December 19621963: 5 January 1963 to 30 December 19631964: 14 March 1964 to 2 December 19641965: 2 January 1965 to 8 December 19651966: 4 March 1966 to 14 December 19661967: 26 February 1967 to 28 November 19671968: 12 January 1968 to 20 December 19681970: 20 February 1970 to 29 December 19701971: 11 January 1971 to 31 December 19711972: 1 January 1972 to 19 December 19721973: 10 January 1973 to 12 December 19731974: 4 January 1974 to 1 December 19741975: 26 January 1975 to 22 December 19751976: 10 January 1976 to 26 December 19761977: 22 January 1977 to 31 December 19771978: 7 January 1978 to 18 December 19781979: 14 March 1979 to 28 November 19791980: 3 February 1980 to 31 December 19801981: 9 February 1981 to 22 December 19811982: 9 January 1982 to 23 December 19821983: 7 January 1983 to 25 December 19831984: 1 January 1984 to 31 December 19841985: 14 February 1985 to 31 December 19851986: 2 January 1986 to 23 December 19861987: 1 January 1987 to 21 December 19871988: 6 January 1988 to 17 December 19881989: 24 February 1989 to 26 December 19891991: 2 January 1991 to 28 November 19911992: 3 March 1992 to 31 December 19921993: 1 January 1993 to 30 December 19931994: 4 January 1994 to 20 December 19941995: 9 January 1995 to 13 December 19951996: 11 January 1996 to 31 December 19961997: 1 January 1997 to 26 November 19971998: 3 January 1998 to 25 December 19981999: 7 January 1999 to 30 December 19992000: 15 January 2000 to 9 December 20002001: 4 January 2001 to 25 December 20012002: 10 February 2002 to 2 December 20022003: 17 January 2003 to 20 December 20032004: 1 January 2004 to 30 December 20042005: 3 January 2005 to 15 December 20052006: 24 January 2006 to 18 December 20062007: 6 March 2007 to 7 December 20072008: 5 January 2008 to 8 December 20082009: 16 January 2009 to 28 December 20092010: 16 March 2010 to 8 December 20102011: 4 March 2011 to 2 December 20112012: 3 January 2012 to 6 December 201219541962197119791987199620042012JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Jacinto meeting 30 C (86 F).
First to last qualifying date each year at San Jacinto
YearFirst dateLast date
19541954-01-041954-12-21
19551955-02-111955-12-31
19561956-01-021956-12-31
19571957-01-011957-12-28
19581958-01-011958-12-18
19591959-01-071959-12-08
19601960-02-031960-12-21
19611961-02-111961-12-23
19621962-02-041962-12-22
19631963-01-051963-12-30
19641964-03-141964-12-02
19651965-01-021965-12-08
19661966-03-041966-12-14
19671967-02-261967-11-28
19681968-01-121968-12-20
19701970-02-201970-12-29
19711971-01-111971-12-31
19721972-01-011972-12-19
19731973-01-101973-12-12
19741974-01-041974-12-01
19751975-01-261975-12-22
19761976-01-101976-12-26
19771977-01-221977-12-31
19781978-01-071978-12-18
19791979-03-141979-11-28
19801980-02-031980-12-31
19811981-02-091981-12-22
19821982-01-091982-12-23
19831983-01-071983-12-25
19841984-01-011984-12-31
19851985-02-141985-12-31
19861986-01-021986-12-23
19871987-01-011987-12-21
19881988-01-061988-12-17
19891989-02-241989-12-26
19911991-01-021991-11-28
19921992-03-031992-12-31
19931993-01-011993-12-30
19941994-01-041994-12-20
19951995-01-091995-12-13
19961996-01-111996-12-31
19971997-01-011997-11-26
19981998-01-031998-12-25
19991999-01-071999-12-30
20002000-01-152000-12-09
20012001-01-042001-12-25
20022002-02-102002-12-02
20032003-01-172003-12-20
20042004-01-012004-12-30
20052005-01-032005-12-15
20062006-01-242006-12-18
20072007-03-062007-12-07
20082008-01-052008-12-08
20092009-01-162009-12-28
20102010-03-162010-12-08
20112011-03-042011-12-02
20122012-01-032012-12-06

Every Fixed Threshold

Fixed thresholds at San Jacinto
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days572791956191
35 C (95 F): Days57111195618
40 C (104 F): Days121619561
90 F (32.2 C): Days57176196297
100 F (37.8 C): Days453519565
0 C (32 F): Frost days (min2219561
20 C (68 F): Tropical nights (min57121198393
25 C (77 F): Days with min441819973
10 mm (0.39 in): Days with 10 mm or more rain5818198311
25 mm (0.98 in): Days with 25 mm or more rain53719587
50 mm (1.97 in): Days with 50 mm or more rain32619811
100 mm (3.94 in): Days with 100 mm or more rain11220011
200 mm (7.87 in): Days with 200 mm or more rain1220012

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

  • Data for San Jacinto 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).