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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

San Juan del Rio (Dge) Threshold Days by Year (MXN00022022)

8 fixed thresholds counted per year at San Juan del Rio (Dge) (MXN00022022): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Juan del Rio (Dge) Thresholds

  • San Juan del Rio (Dge): days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 2009 with 116.
  • San Juan del Rio (Dge): days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 1973 with 26.
  • San Juan del Rio (Dge): days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1981 with 10.
  • San Juan del Rio (Dge): days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 1998 with 68.
  • 8 fixed thresholds have at least one qualifying day at San Juan del Rio (Dge).
32 years with a qualifying day
Days at or above 30 C (86 F) per year at San Juan del Rio (Dge) Days per year at San Juan del Rio (Dge) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 116 in 2009. 0501001501973: 371974: 141975: 201976: 91977: 141978: 261979: 351980: 761981: 441982: 921983: 671984: 531985: 231986: 371987: 491988: 631989: 691990: 571991: 941992: 191994: 741995: 891996: 831997: 771998: 1042000: 482001: 872002: 932003: 752004: 382005: 762009: 11619731977198119851989199419982003
Days per year at San Juan del Rio (Dge) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 116 in 2009.
Days at or above 30 C (86 F) per year at San Juan del Rio (Dge)
YearDaysDecade average
19733722.1
19741422.1
19752022.1
1976922.1
19771422.1
19782622.1
19793522.1
19807657.3
19814457.3
19829257.3
19836757.3
19845357.3
19852357.3
19863757.3
19874957.3
19886357.3
19896957.3
19905774.6
19919474.6
19921974.6
19947474.6
19958974.6
19968374.6
19977774.6
199810474.6
20004876.1
20018776.1
20029376.1
20037576.1
20043876.1
20057676.1
200911676.1
First to last qualifying date each year at San Juan del Rio (Dge) For each year, a bar from the first to the last day at San Juan del Rio (Dge) meeting 30 C (86 F). 1973: 4 March 1973 to 4 June 19731974: 21 March 1974 to 16 May 19741975: 12 March 1975 to 9 May 19751976: 27 March 1976 to 26 May 19761977: 5 March 1977 to 7 May 19771978: 13 March 1978 to 18 May 19781979: 23 March 1979 to 27 October 19791980: 6 March 1980 to 18 October 19801981: 21 March 1981 to 18 August 19811982: 12 February 1982 to 30 September 19821983: 18 March 1983 to 30 June 19831984: 12 March 1984 to 28 June 19841985: 4 March 1985 to 31 May 19851986: 20 February 1986 to 24 May 19861987: 21 March 1987 to 25 September 19871988: 17 February 1988 to 9 November 19881989: 27 February 1989 to 8 November 19891990: 7 March 1990 to 17 June 19901991: 18 February 1991 to 20 September 19911992: 18 March 1992 to 1 July 19921994: 6 February 1994 to 27 November 19941995: 14 February 1995 to 7 November 19951996: 20 February 1996 to 7 November 19961997: 26 February 1997 to 9 December 19971998: 23 February 1998 to 14 July 19982000: 11 February 2000 to 9 December 20002001: 13 February 2001 to 24 October 20012002: 8 March 2002 to 10 November 20022003: 10 February 2003 to 30 August 20032004: 18 March 2004 to 24 October 20042005: 9 February 2005 to 20 October 20052009: 15 February 2009 to 11 December 200919731977198119851989199419982003JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Juan del Rio (Dge) meeting 30 C (86 F).
First to last qualifying date each year at San Juan del Rio (Dge)
YearFirst dateLast date
19731973-03-041973-06-04
19741974-03-211974-05-16
19751975-03-121975-05-09
19761976-03-271976-05-26
19771977-03-051977-05-07
19781978-03-131978-05-18
19791979-03-231979-10-27
19801980-03-061980-10-18
19811981-03-211981-08-18
19821982-02-121982-09-30
19831983-03-181983-06-30
19841984-03-121984-06-28
19851985-03-041985-05-31
19861986-02-201986-05-24
19871987-03-211987-09-25
19881988-02-171988-11-09
19891989-02-271989-11-08
19901990-03-071990-06-17
19911991-02-181991-09-20
19921992-03-181992-07-01
19941994-02-061994-11-27
19951995-02-141995-11-07
19961996-02-201996-11-07
19971997-02-261997-12-09
19981998-02-231998-07-14
20002000-02-112000-12-09
20012001-02-132001-10-24
20022002-03-082002-11-10
20032003-02-102003-08-30
20042004-03-182004-10-24
20052005-02-092005-10-20
20092009-02-152009-12-11

Every Fixed Threshold

Fixed thresholds at San Juan del Rio (Dge)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days321162009116
35 C (95 F): Days1730199814
90 F (32.2 C): Days2968199853
100 F (37.8 C): Days2119941
0 C (32 F): Frost days (min281419762
10 mm (0.39 in): Days with 10 mm or more rain3226197316
25 mm (0.98 in): Days with 25 mm or more rain301019815
50 mm (1.97 in): Days with 50 mm or more rain12219851

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1973.

Download the Data

  • Data for San Juan del Rio (Dge) 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).