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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

San Juan del Rio Threshold Days by Year

14 fixed thresholds counted per year at San Juan del Rio (MXN00020113): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Juan del Rio Thresholds

  • San Juan del Rio: days with a maximum temperature at or above 30 C (86 F) in 46 years, most in 1996 with 312.
  • San Juan del Rio: days with a maximum temperature at or above 35 C (95 F) in 46 years, most in 1996 with 204.
  • San Juan del Rio: days with a maximum temperature at or above 90 F (32.2 C) in 46 years, most in 1996 with 290.
  • San Juan del Rio: days with a maximum temperature at or above 100 F (37.8 C) in 45 years, most in 2009 with 111.
  • 14 fixed thresholds have at least one qualifying day at San Juan del Rio.
46 years with a qualifying day
Days at or above 30 C (86 F) per year at San Juan del Rio Days per year at San Juan del Rio with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 312 in 1996. 01002003004001951: 2701952: 2221953: 2611954: 1911955: 2251956: 2111957: 2711958: 2721959: 2341960: 2491961: 2391962: 2801963: 3111964: 3041965: 2861966: 2591967: 2771968: 2121969: 2381970: 2411971: 2921972: 2321973: 1851974: 1731975: 1641976: 1521977: 2231978: 1661979: 1961980: 1891981: 2081982: 2211983: 2111991: 2291993: 2581995: 1721996: 3122000: 2512001: 2632002: 2262003: 1932004: 1682005: 432008: 2572009: 2302010: 2011951195619611966197119761981199520032010
Days per year at San Juan del Rio with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 312 in 1996.
Days at or above 30 C (86 F) per year at San Juan del Rio
YearDaysDecade average
1951270239.7
1952222239.7
1953261239.7
1954191239.7
1955225239.7
1956211239.7
1957271239.7
1958272239.7
1959234239.7
1960249265.5
1961239265.5
1962280265.5
1963311265.5
1964304265.5
1965286265.5
1966259265.5
1967277265.5
1968212265.5
1969238265.5
1970241202.4
1971292202.4
1972232202.4
1973185202.4
1974173202.4
1975164202.4
1976152202.4
1977223202.4
1978166202.4
1979196202.4
1980189207.3
1981208207.3
1982221207.3
1983211207.3
1991229242.8
1993258242.8
1995172242.8
1996312242.8
2000251203.9
2001263203.9
2002226203.9
2003193203.9
2004168203.9
200543203.9
2008257203.9
2009230203.9
2010201201
First to last qualifying date each year at San Juan del Rio For each year, a bar from the first to the last day at San Juan del Rio meeting 30 C (86 F). 1951: 1 January 1951 to 16 December 19511952: 10 January 1952 to 31 December 19521953: 2 January 1953 to 25 December 19531954: 5 January 1954 to 27 December 19541955: 1 January 1955 to 3 December 19551956: 16 January 1956 to 24 December 19561957: 4 January 1957 to 31 December 19571958: 23 January 1958 to 6 December 19581959: 2 January 1959 to 31 December 19591960: 1 January 1960 to 23 December 19601961: 6 February 1961 to 17 December 19611962: 1 January 1962 to 29 December 19621963: 1 January 1963 to 28 December 19631964: 6 January 1964 to 31 December 19641965: 1 January 1965 to 31 December 19651966: 1 January 1966 to 25 December 19661967: 1 January 1967 to 27 December 19671968: 1 January 1968 to 27 November 19681969: 9 January 1969 to 29 December 19691970: 2 January 1970 to 12 November 19701971: 7 January 1971 to 31 December 19711972: 3 January 1972 to 9 December 19721973: 21 January 1973 to 31 December 19731974: 15 January 1974 to 13 October 19741975: 11 January 1975 to 21 September 19751976: 31 January 1976 to 2 October 19761977: 23 February 1977 to 6 December 19771978: 19 January 1978 to 8 December 19781979: 23 January 1979 to 23 December 19791980: 16 January 1980 to 23 December 19801981: 6 January 1981 to 30 December 19811982: 3 January 1982 to 2 December 19821983: 13 January 1983 to 10 December 19831991: 3 January 1991 to 22 December 19911993: 4 January 1993 to 31 December 19931995: 3 February 1995 to 29 December 19951996: 1 January 1996 to 31 December 19962000: 1 January 2000 to 26 November 20002001: 6 January 2001 to 29 December 20012002: 5 January 2002 to 31 December 20022003: 5 January 2003 to 25 December 20032004: 8 January 2004 to 27 December 20042005: 2 March 2005 to 3 June 20052008: 20 January 2008 to 31 December 20082009: 1 January 2009 to 24 December 20092010: 16 January 2010 to 29 December 201019511957196319691975198119962005JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Juan del Rio meeting 30 C (86 F).
First to last qualifying date each year at San Juan del Rio
YearFirst dateLast date
19511951-01-011951-12-16
19521952-01-101952-12-31
19531953-01-021953-12-25
19541954-01-051954-12-27
19551955-01-011955-12-03
19561956-01-161956-12-24
19571957-01-041957-12-31
19581958-01-231958-12-06
19591959-01-021959-12-31
19601960-01-011960-12-23
19611961-02-061961-12-17
19621962-01-011962-12-29
19631963-01-011963-12-28
19641964-01-061964-12-31
19651965-01-011965-12-31
19661966-01-011966-12-25
19671967-01-011967-12-27
19681968-01-011968-11-27
19691969-01-091969-12-29
19701970-01-021970-11-12
19711971-01-071971-12-31
19721972-01-031972-12-09
19731973-01-211973-12-31
19741974-01-151974-10-13
19751975-01-111975-09-21
19761976-01-311976-10-02
19771977-02-231977-12-06
19781978-01-191978-12-08
19791979-01-231979-12-23
19801980-01-161980-12-23
19811981-01-061981-12-30
19821982-01-031982-12-02
19831983-01-131983-12-10
19911991-01-031991-12-22
19931993-01-041993-12-31
19951995-02-031995-12-29
19961996-01-011996-12-31
20002000-01-012000-11-26
20012001-01-062001-12-29
20022002-01-052002-12-31
20032003-01-052003-12-25
20042004-01-082004-12-27
20052005-03-022005-06-03
20082008-01-202008-12-31
20092009-01-012009-12-24
20102010-01-162010-12-29

Every Fixed Threshold

Fixed thresholds at San Juan del Rio
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days463121996201
35 C (95 F): Days462041996122
40 C (104 F): Days3455200927
45 C (113 F): Days1219602
90 F (32.2 C): Days462901996187
100 F (37.8 C): Days45111200958
110 F (43.3 C): Days3620082
20 C (68 F): Tropical nights (min37207196533
25 C (77 F): Days with min9319601
10 mm (0.39 in): Days with 10 mm or more rain451231952121
25 mm (0.98 in): Days with 25 mm or more rain4567195257
50 mm (1.97 in): Days with 50 mm or more rain4222195815
100 mm (3.94 in): Days with 100 mm or more rain26919581
200 mm (7.87 in): Days with 200 mm or more rain1119761

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.

Download the Data

  • Data for San Juan del Rio 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).