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Built 2026-10-19 (19 October 2026)

San Luis Potosi (Smn) Threshold Days by Year (MXN00024111)

10 fixed thresholds counted per year at San Luis Potosi (Smn) (MXN00024111): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Luis Potosi (Smn) Thresholds

  • San Luis Potosi (Smn): days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1994 with 17.
  • San Luis Potosi (Smn): days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 1969 with 117.
  • San Luis Potosi (Smn): days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 1998 with 56.
  • San Luis Potosi (Smn): days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1991 with 6.
  • 10 fixed thresholds have at least one qualifying day at San Luis Potosi (Smn).
29 years with a qualifying day
Days at or above 30 C (86 F) per year at San Luis Potosi (Smn) Days per year at San Luis Potosi (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 117 in 1969. 0501001501967: 741968: 731969: 1171970: 611981: 261982: 541983: 491989: 381990: 331991: 851992: 321993: 341994: 491995: 631996: 621997: 491998: 981999: 802000: 442001: 562002: 592003: 652004: 482005: 852006: 602007: 472008: 712009: 1072010: 981967197019831991199419972000200320062009
Days per year at San Luis Potosi (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 117 in 1969.
Days at or above 30 C (86 F) per year at San Luis Potosi (Smn)
YearDaysDecade average
19677488
19687388
196911788
19706161
19812641.8
19825441.8
19834941.8
19893841.8
19903358.5
19918558.5
19923258.5
19933458.5
19944958.5
19956358.5
19966258.5
19974958.5
19989858.5
19998058.5
20004464.2
20015664.2
20025964.2
20036564.2
20044864.2
20058564.2
20066064.2
20074764.2
20087164.2
200910764.2
20109898
First to last qualifying date each year at San Luis Potosi (Smn) For each year, a bar from the first to the last day at San Luis Potosi (Smn) meeting 30 C (86 F). 1967: 30 March 1967 to 27 December 19671968: 14 March 1968 to 15 October 19681969: 19 March 1969 to 12 November 19691970: 23 March 1970 to 25 October 19701981: 30 March 1981 to 31 August 19811982: 12 March 1982 to 21 June 19821983: 1 April 1983 to 5 September 19831989: 7 April 1989 to 8 November 19891990: 9 April 1990 to 28 August 19901991: 4 March 1991 to 1 September 19911992: 20 March 1992 to 22 September 19921993: 26 March 1993 to 18 October 19931994: 6 March 1994 to 21 September 19941995: 20 March 1995 to 26 October 19951996: 23 February 1996 to 4 August 19961997: 4 March 1997 to 28 November 19971998: 5 March 1998 to 25 August 19981999: 10 March 1999 to 26 September 19992000: 25 March 2000 to 13 November 20002001: 10 March 2001 to 23 October 20012002: 13 March 2002 to 4 October 20022003: 25 February 2003 to 8 August 20032004: 2 March 2004 to 23 October 20042005: 21 March 2005 to 23 October 20052006: 16 February 2006 to 18 October 20062007: 23 February 2007 to 18 October 20072008: 25 February 2008 to 12 September 20082009: 18 February 2009 to 6 October 20092010: 26 March 2010 to 2 November 201019671981199019941998200220062010JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Luis Potosi (Smn) meeting 30 C (86 F).
First to last qualifying date each year at San Luis Potosi (Smn)
YearFirst dateLast date
19671967-03-301967-12-27
19681968-03-141968-10-15
19691969-03-191969-11-12
19701970-03-231970-10-25
19811981-03-301981-08-31
19821982-03-121982-06-21
19831983-04-011983-09-05
19891989-04-071989-11-08
19901990-04-091990-08-28
19911991-03-041991-09-01
19921992-03-201992-09-22
19931993-03-261993-10-18
19941994-03-061994-09-21
19951995-03-201995-10-26
19961996-02-231996-08-04
19971997-03-041997-11-28
19981998-03-051998-08-25
19991999-03-101999-09-26
20002000-03-252000-11-13
20012001-03-102001-10-23
20022002-03-132002-10-04
20032003-02-252003-08-08
20042004-03-022004-10-23
20052005-03-212005-10-23
20062006-02-162006-10-18
20072007-02-232007-10-18
20082008-02-252008-09-12
20092009-02-182009-10-06
20102010-03-262010-11-02

Every Fixed Threshold

Fixed thresholds at San Luis Potosi (Smn)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days29117196998
35 C (95 F): Days182119987
90 F (32.2 C): Days2956199837
100 F (37.8 C): Days1119981
0 C (32 F): Frost days (min2849201049
20 C (68 F): Tropical nights (min2219982
10 mm (0.39 in): Days with 10 mm or more rain3017199414
25 mm (0.98 in): Days with 25 mm or more rain29619913
50 mm (1.97 in): Days with 50 mm or more rain7119671
100 mm (3.94 in): Days with 100 mm or more rain10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

  • Data for San Luis Potosi (Smn) 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).