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Built 2026-10-19 (19 October 2026)

Viesca (Smn) Threshold Days by Year (MXN00005051)

14 fixed thresholds counted per year at Viesca (Smn) (MXN00005051): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Viesca (Smn) Thresholds

  • Viesca (Smn): days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 1964 with 292.
  • Viesca (Smn): days with a maximum temperature at or above 35 C (95 F) in 32 years, most in 1963 with 241.
  • Viesca (Smn): days with a maximum temperature at or above 90 F (32.2 C) in 32 years, most in 1964 with 266.
  • Viesca (Smn): nights with a minimum temperature at or above 20 C (68 F) in 32 years, most in 1964 with 266.
  • 14 fixed thresholds have at least one qualifying day at Viesca (Smn).
32 years with a qualifying day
Days at or above 30 C (86 F) per year at Viesca (Smn) Days per year at Viesca (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 292 in 1964. 01002003001941: 1701942: 1701943: 1491944: 931945: 1571946: 1911947: 1971948: 1911949: 1911950: 2171951: 2101952: 1841953: 1621954: 2081955: 1911956: 1911957: 1761958: 1561959: 1751960: 1661961: 1871962: 2561963: 2681964: 2921965: 2361966: 2121967: 2231968: 1711969: 2211970: 1961971: 1691972: 23419411945194919531957196119651969
Days per year at Viesca (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 292 in 1964.
Days at or above 30 C (86 F) per year at Viesca (Smn)
YearDaysDecade average
1941170167.7
1942170167.7
1943149167.7
194493167.7
1945157167.7
1946191167.7
1947197167.7
1948191167.7
1949191167.7
1950217187
1951210187
1952184187
1953162187
1954208187
1955191187
1956191187
1957176187
1958156187
1959175187
1960166223.2
1961187223.2
1962256223.2
1963268223.2
1964292223.2
1965236223.2
1966212223.2
1967223223.2
1968171223.2
1969221223.2
1970196199.7
1971169199.7
1972234199.7
First to last qualifying date each year at Viesca (Smn) For each year, a bar from the first to the last day at Viesca (Smn) meeting 30 C (86 F). 1941: 12 February 1941 to 3 November 19411942: 12 January 1942 to 29 October 19421943: 19 January 1943 to 4 October 19431944: 21 February 1944 to 8 October 19441945: 1 March 1945 to 8 October 19451946: 3 March 1946 to 10 November 19461947: 2 March 1947 to 9 November 19471948: 16 February 1948 to 4 November 19481949: 12 February 1949 to 24 October 19491950: 8 February 1950 to 26 November 19501951: 23 February 1951 to 27 November 19511952: 14 January 1952 to 8 November 19521953: 14 January 1953 to 20 October 19531954: 18 January 1954 to 14 October 19541955: 3 February 1955 to 5 October 19551956: 1 February 1956 to 29 October 19561957: 6 February 1957 to 4 November 19571958: 2 April 1958 to 8 October 19581959: 19 February 1959 to 13 October 19591960: 9 March 1960 to 16 October 19601961: 10 March 1961 to 1 November 19611962: 23 January 1962 to 1 December 19621963: 21 February 1963 to 26 December 19631964: 2 January 1964 to 26 November 19641965: 26 February 1965 to 27 November 19651966: 1 March 1966 to 6 December 19661967: 29 January 1967 to 27 November 19671968: 24 February 1968 to 3 November 19681969: 18 March 1969 to 11 November 19691970: 13 February 1970 to 2 December 19701971: 16 February 1971 to 1 November 19711972: 20 February 1972 to 10 December 197219411945194919531957196119651969JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Viesca (Smn) meeting 30 C (86 F).
First to last qualifying date each year at Viesca (Smn)
YearFirst dateLast date
19411941-02-121941-11-03
19421942-01-121942-10-29
19431943-01-191943-10-04
19441944-02-211944-10-08
19451945-03-011945-10-08
19461946-03-031946-11-10
19471947-03-021947-11-09
19481948-02-161948-11-04
19491949-02-121949-10-24
19501950-02-081950-11-26
19511951-02-231951-11-27
19521952-01-141952-11-08
19531953-01-141953-10-20
19541954-01-181954-10-14
19551955-02-031955-10-05
19561956-02-011956-10-29
19571957-02-061957-11-04
19581958-04-021958-10-08
19591959-02-191959-10-13
19601960-03-091960-10-16
19611961-03-101961-11-01
19621962-01-231962-12-01
19631963-02-211963-12-26
19641964-01-021964-11-26
19651965-02-261965-11-27
19661966-03-011966-12-06
19671967-01-291967-11-27
19681968-02-241968-11-03
19691969-03-181969-11-11
19701970-02-131970-12-02
19711971-02-161971-11-01
19721972-02-201972-12-10

Every Fixed Threshold

Fixed thresholds at Viesca (Smn)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days322921964234
35 C (95 F): Days322411963100
40 C (104 F): Days915619631
45 C (113 F): Days2419622
90 F (32.2 C): Days322661964165
100 F (37.8 C): Days24205196312
110 F (43.3 C): Days31419631
0 C (32 F): Frost days (min145619421
-10 C (14 F): Days with min1119411
20 C (68 F): Tropical nights (min32266196429
25 C (77 F): Days with min2818219641
10 mm (0.39 in): Days with 10 mm or more rain3013196810
25 mm (0.98 in): Days with 25 mm or more rain19419681
50 mm (1.97 in): Days with 50 mm or more rain1119631

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

Download the Data

  • Data for Viesca (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).