Built 2026-10-19 (19 October 2026)

Altamirano (Smn) Threshold Days by Year (MXN00007006)

11 fixed thresholds counted per year at Altamirano (Smn) (MXN00007006): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Altamirano (Smn) Thresholds

  • Altamirano (Smn): days with 10 mm (0.39 in) or more of precipitation in 66 years, most in 1987 with 87.
  • Altamirano (Smn): days with 25 mm (0.98 in) or more of precipitation in 66 years, most in 2010 with 34.
  • Altamirano (Smn): days with a maximum temperature at or above 30 C (86 F) in 61 years, most in 1952 with 240.
  • Altamirano (Smn): days with 50 mm (1.97 in) or more of precipitation in 60 years, most in 1989 with 8.
  • 11 fixed thresholds have at least one qualifying day at Altamirano (Smn).
61 years with a qualifying day
Days at or above 30 C (86 F) per year at Altamirano (Smn) Days per year at Altamirano (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 240 in 1952. 01002003001943: 31944: 521946: 1031947: 1361949: 1361950: 761951: 751952: 2401954: 2351955: 2241956: 911957: 751958: 811959: 551960: 791961: 631962: 821963: 981964: 1041965: 901966: 441967: 361968: 351970: 441971: 341972: 561974: 611975: 691976: 361977: 581978: 471979: 611980: 441981: 321983: 561984: 621985: 301987: 61988: 791989: 481990: 571991: 1161992: 681993: 751994: 831995: 1711996: 2361997: 572000: 1022001: 1232002: 1162003: 2182004: 1532005: 1692006: 1522007: 1692008: 1372009: 1262010: 1442011: 1332012: 99194319521960196719761984199220012008
Days per year at Altamirano (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 240 in 1952.
Days at or above 30 C (86 F) per year at Altamirano (Smn)
YearDaysDecade average
1943386
19445286
194610386
194713686
194913686
195076128
195175128
1952240128
1954235128
1955224128
195691128
195775128
195881128
195955128
19607970.1
19616370.1
19628270.1
19639870.1
196410470.1
19659070.1
19664470.1
19673670.1
19683570.1
19704451.8
19713451.8
19725651.8
19746151.8
19756951.8
19763651.8
19775851.8
19784751.8
19796151.8
19804444.6
19813244.6
19835644.6
19846244.6
19853044.6
1987644.6
19887944.6
19894844.6
199057107.9
1991116107.9
199268107.9
199375107.9
199483107.9
1995171107.9
1996236107.9
199757107.9
2000102146.5
2001123146.5
2002116146.5
2003218146.5
2004153146.5
2005169146.5
2006152146.5
2007169146.5
2008137146.5
2009126146.5
2010144125.3
2011133125.3
201299125.3
First to last qualifying date each year at Altamirano (Smn) For each year, a bar from the first to the last day at Altamirano (Smn) meeting 30 C (86 F). 1943: 25 January 1943 to 3 June 19431944: 5 March 1944 to 26 November 19441946: 6 January 1946 to 31 December 19461947: 1 January 1947 to 25 December 19471949: 1 January 1949 to 29 October 19491950: 13 February 1950 to 4 December 19501951: 2 January 1951 to 22 December 19511952: 22 January 1952 to 28 December 19521954: 1 January 1954 to 28 December 19541955: 9 January 1955 to 18 December 19551956: 17 January 1956 to 9 September 19561957: 21 February 1957 to 25 November 19571958: 25 January 1958 to 23 November 19581959: 18 February 1959 to 27 November 19591960: 1 January 1960 to 2 November 19601961: 5 February 1961 to 10 October 19611962: 5 January 1962 to 13 December 19621963: 7 January 1963 to 10 November 19631964: 20 January 1964 to 13 November 19641965: 20 February 1965 to 22 November 19651966: 25 February 1966 to 11 October 19661967: 6 February 1967 to 22 December 19671968: 10 March 1968 to 3 December 19681970: 2 February 1970 to 11 June 19701971: 7 February 1971 to 17 September 19711972: 17 February 1972 to 10 December 19721974: 30 January 1974 to 14 November 19741975: 10 January 1975 to 29 October 19751976: 26 March 1976 to 20 October 19761977: 23 February 1977 to 11 October 19771978: 25 January 1978 to 18 November 19781979: 25 January 1979 to 24 October 19791980: 29 January 1980 to 19 October 19801981: 29 January 1981 to 29 June 19811983: 21 January 1983 to 3 July 19831984: 2 March 1984 to 21 October 19841985: 20 March 1985 to 31 December 19851987: 2 February 1987 to 5 December 19871988: 19 January 1988 to 8 December 19881989: 1 March 1989 to 1 December 19891990: 2 February 1990 to 18 December 19901991: 29 January 1991 to 1 December 19911992: 13 January 1992 to 13 December 19921993: 9 January 1993 to 6 November 19931994: 17 January 1994 to 28 November 19941995: 13 January 1995 to 31 December 19951996: 1 January 1996 to 30 November 19961997: 6 January 1997 to 25 September 19972000: 16 March 2000 to 27 December 20002001: 7 January 2001 to 24 December 20012002: 11 January 2002 to 30 December 20022003: 10 January 2003 to 27 December 20032004: 5 January 2004 to 25 December 20042005: 12 January 2005 to 30 December 20052006: 2 January 2006 to 29 December 20062007: 4 January 2007 to 31 December 20072008: 11 January 2008 to 15 December 20082009: 6 January 2009 to 9 December 20092010: 20 January 2010 to 31 December 20102011: 1 January 2011 to 17 November 20112012: 24 February 2012 to 28 December 201219431954196219711980199020002008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Altamirano (Smn) meeting 30 C (86 F).
First to last qualifying date each year at Altamirano (Smn)
YearFirst dateLast date
19431943-01-251943-06-03
19441944-03-051944-11-26
19461946-01-061946-12-31
19471947-01-011947-12-25
19491949-01-011949-10-29
19501950-02-131950-12-04
19511951-01-021951-12-22
19521952-01-221952-12-28
19541954-01-011954-12-28
19551955-01-091955-12-18
19561956-01-171956-09-09
19571957-02-211957-11-25
19581958-01-251958-11-23
19591959-02-181959-11-27
19601960-01-011960-11-02
19611961-02-051961-10-10
19621962-01-051962-12-13
19631963-01-071963-11-10
19641964-01-201964-11-13
19651965-02-201965-11-22
19661966-02-251966-10-11
19671967-02-061967-12-22
19681968-03-101968-12-03
19701970-02-021970-06-11
19711971-02-071971-09-17
19721972-02-171972-12-10
19741974-01-301974-11-14
19751975-01-101975-10-29
19761976-03-261976-10-20
19771977-02-231977-10-11
19781978-01-251978-11-18
19791979-01-251979-10-24
19801980-01-291980-10-19
19811981-01-291981-06-29
19831983-01-211983-07-03
19841984-03-021984-10-21
19851985-03-201985-12-31
19871987-02-021987-12-05
19881988-01-191988-12-08
19891989-03-011989-12-01
19901990-02-021990-12-18
19911991-01-291991-12-01
19921992-01-131992-12-13
19931993-01-091993-11-06
19941994-01-171994-11-28
19951995-01-131995-12-31
19961996-01-011996-11-30
19971997-01-061997-09-25
20002000-03-162000-12-27
20012001-01-072001-12-24
20022002-01-112002-12-30
20032003-01-102003-12-27
20042004-01-052004-12-25
20052005-01-122005-12-30
20062006-01-022006-12-29
20072007-01-042007-12-31
20082008-01-112008-12-15
20092009-01-062009-12-09
20102010-01-202010-12-31
20112011-01-012011-11-17
20122012-02-242012-12-28

Every Fixed Threshold

Fixed thresholds at Altamirano (Smn)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days61240195299
35 C (95 F): Days446220031
40 C (104 F): Days5420031
90 F (32.2 C): Days58108200313
100 F (37.8 C): Days142020034
0 C (32 F): Frost days (min9219542
20 C (68 F): Tropical nights (min181019511
10 mm (0.39 in): Days with 10 mm or more rain6687198749
25 mm (0.98 in): Days with 25 mm or more rain6634201015
50 mm (1.97 in): Days with 50 mm or more rain60819896
100 mm (3.94 in): Days with 100 mm or more rain8119501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

Download the Data

  • Data for Altamirano (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).