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

Vallecillo (Smn) Threshold Days by Year (MXN00019077)

15 fixed thresholds counted per year at Vallecillo (Smn) (MXN00019077): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Vallecillo (Smn) Thresholds

  • Vallecillo (Smn): days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1944 with 21.
  • Vallecillo (Smn): days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1967 with 13.
  • Vallecillo (Smn): days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 1962 with 251.
  • Vallecillo (Smn): days with a maximum temperature at or above 35 C (95 F) in 27 years, most in 1974 with 162.
  • 15 fixed thresholds have at least one qualifying day at Vallecillo (Smn).
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Vallecillo (Smn) Days per year at Vallecillo (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 251 in 1962. 01002003001942: 1271943: 1591944: 1791959: 2011960: 2171961: 2231962: 2511963: 2371964: 1861965: 2151966: 2001967: 2041968: 1881969: 2051970: 2181971: 2301972: 2301973: 2481974: 2211975: 2351976: 2001977: 2111979: 2271980: 2371981: 1561986: 2061987: 194194219591962196519681971197419771981
Days per year at Vallecillo (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 251 in 1962.
Days at or above 30 C (86 F) per year at Vallecillo (Smn)
YearDaysDecade average
1942127155
1943159155
1944179155
1959201201
1960217212.6
1961223212.6
1962251212.6
1963237212.6
1964186212.6
1965215212.6
1966200212.6
1967204212.6
1968188212.6
1969205212.6
1970218224.4
1971230224.4
1972230224.4
1973248224.4
1974221224.4
1975235224.4
1976200224.4
1977211224.4
1979227224.4
1980237198.3
1981156198.3
1986206198.3
1987194198.3
First to last qualifying date each year at Vallecillo (Smn) For each year, a bar from the first to the last day at Vallecillo (Smn) meeting 30 C (86 F). 1942: 4 February 1942 to 13 October 19421943: 13 April 1943 to 6 November 19431944: 25 January 1944 to 25 December 19441959: 15 February 1959 to 27 December 19591960: 7 February 1960 to 28 December 19601961: 11 February 1961 to 31 October 19611962: 4 January 1962 to 24 November 19621963: 8 January 1963 to 19 November 19631964: 19 January 1964 to 29 December 19641965: 8 January 1965 to 27 November 19651966: 3 March 1966 to 8 December 19661967: 5 January 1967 to 10 December 19671968: 25 January 1968 to 27 December 19681969: 7 January 1969 to 17 November 19691970: 28 January 1970 to 22 December 19701971: 2 January 1971 to 14 December 19711972: 12 January 1972 to 22 December 19721973: 19 January 1973 to 31 December 19731974: 2 January 1974 to 23 December 19741975: 9 January 1975 to 29 November 19751976: 2 January 1976 to 24 October 19761977: 28 January 1977 to 7 December 19771979: 12 January 1979 to 28 November 19791980: 2 January 1980 to 13 November 19801981: 9 February 1981 to 29 December 19811986: 29 January 1986 to 19 November 19861987: 27 January 1987 to 11 December 19871942196019641968197219761981JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Vallecillo (Smn) meeting 30 C (86 F).
First to last qualifying date each year at Vallecillo (Smn)
YearFirst dateLast date
19421942-02-041942-10-13
19431943-04-131943-11-06
19441944-01-251944-12-25
19591959-02-151959-12-27
19601960-02-071960-12-28
19611961-02-111961-10-31
19621962-01-041962-11-24
19631963-01-081963-11-19
19641964-01-191964-12-29
19651965-01-081965-11-27
19661966-03-031966-12-08
19671967-01-051967-12-10
19681968-01-251968-12-27
19691969-01-071969-11-17
19701970-01-281970-12-22
19711971-01-021971-12-14
19721972-01-121972-12-22
19731973-01-191973-12-31
19741974-01-021974-12-23
19751975-01-091975-11-29
19761976-01-021976-10-24
19771977-01-281977-12-07
19791979-01-121979-11-28
19801980-01-021980-11-13
19811981-02-091981-12-29
19861986-01-291986-11-19
19871987-01-271987-12-11

Every Fixed Threshold

Fixed thresholds at Vallecillo (Smn)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days272511962194
35 C (95 F): Days27162197489
40 C (104 F): Days265819439
45 C (113 F): Days3119431
90 F (32.2 C): Days272031973120
100 F (37.8 C): Days27103194338
110 F (43.3 C): Days91519431
0 C (32 F): Frost days (min262519632
-10 C (14 F): Days with min1119621
20 C (68 F): Tropical nights (min271751963138
25 C (77 F): Days with min253319442
10 mm (0.39 in): Days with 10 mm or more rain4021194410
25 mm (0.98 in): Days with 25 mm or more rain301319673
50 mm (1.97 in): Days with 50 mm or more rain16619712
100 mm (3.94 in): Days with 100 mm or more rain4119651

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

  • Data for Vallecillo (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).