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

Altamira Threshold Days by Year (MXN00024002)

17 fixed thresholds counted per year at Altamira (MXN00024002): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Altamira Thresholds

  • Altamira: days with a maximum temperature at or above 30 C (86 F) in 45 years, most in 2003 with 336.
  • Altamira: days with a maximum temperature at or above 35 C (95 F) in 45 years, most in 2000 with 245.
  • Altamira: days with a maximum temperature at or above 90 F (32.2 C) in 45 years, most in 1999 with 294.
  • Altamira: days with a maximum temperature at or above 100 F (37.8 C) in 45 years, most in 1962 with 196.
  • 17 fixed thresholds have at least one qualifying day at Altamira.
45 years with a qualifying day
Days at or above 30 C (86 F) per year at Altamira Days per year at Altamira with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 336 in 2003. 01002003004001961: 3161962: 3091963: 2471964: 2481965: 2471966: 2191967: 2611970: 2671971: 2931973: 2551974: 2581975: 2691976: 2351977: 2501978: 2451979: 2111980: 2301981: 2301982: 2431983: 2231984: 2021985: 2371986: 2171988: 2301989: 2471990: 1841991: 1871992: 1231993: 1651994: 1881995: 2381996: 2411997: 2361998: 3161999: 3292000: 3242002: 3272003: 3362004: 2952005: 2782006: 2932007: 2612008: 2852009: 2612010: 274196119661974197919841990199520002006
Days per year at Altamira with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 336 in 2003.
Days at or above 30 C (86 F) per year at Altamira
YearDaysDecade average
1961316263.9
1962309263.9
1963247263.9
1964248263.9
1965247263.9
1966219263.9
1967261263.9
1970267253.7
1971293253.7
1973255253.7
1974258253.7
1975269253.7
1976235253.7
1977250253.7
1978245253.7
1979211253.7
1980230228.8
1981230228.8
1982243228.8
1983223228.8
1984202228.8
1985237228.8
1986217228.8
1988230228.8
1989247228.8
1990184220.7
1991187220.7
1992123220.7
1993165220.7
1994188220.7
1995238220.7
1996241220.7
1997236220.7
1998316220.7
1999329220.7
2000324295.6
2002327295.6
2003336295.6
2004295295.6
2005278295.6
2006293295.6
2007261295.6
2008285295.6
2009261295.6
2010274274
First to last qualifying date each year at Altamira For each year, a bar from the first to the last day at Altamira meeting 30 C (86 F). 1961: 5 January 1961 to 31 December 19611962: 3 January 1962 to 22 December 19621963: 8 January 1963 to 12 December 19631964: 8 January 1964 to 30 December 19641965: 2 January 1965 to 31 December 19651966: 31 January 1966 to 27 December 19661967: 15 January 1967 to 31 December 19671970: 17 January 1970 to 31 December 19701971: 1 January 1971 to 30 December 19711973: 5 January 1973 to 31 December 19731974: 1 January 1974 to 28 December 19741975: 27 January 1975 to 31 December 19751976: 1 January 1976 to 30 December 19761977: 9 January 1977 to 30 December 19771978: 12 February 1978 to 31 December 19781979: 6 January 1979 to 23 December 19791980: 26 January 1980 to 13 November 19801981: 7 February 1981 to 28 December 19811982: 2 January 1982 to 24 December 19821983: 29 January 1983 to 30 November 19831984: 16 February 1984 to 9 November 19841985: 30 January 1985 to 31 December 19851986: 18 January 1986 to 28 November 19861988: 17 January 1988 to 30 December 19881989: 5 January 1989 to 28 November 19891990: 16 January 1990 to 27 November 19901991: 14 February 1991 to 22 December 19911992: 14 January 1992 to 22 November 19921993: 11 February 1993 to 19 November 19931994: 9 February 1994 to 29 November 19941995: 6 January 1995 to 31 December 19951996: 7 January 1996 to 24 December 19961997: 1 January 1997 to 27 December 19971998: 2 January 1998 to 31 December 19981999: 1 January 1999 to 31 December 19992000: 1 January 2000 to 27 December 20002002: 5 January 2002 to 31 December 20022003: 1 January 2003 to 31 December 20032004: 1 January 2004 to 31 December 20042005: 1 January 2005 to 31 December 20052006: 1 January 2006 to 31 December 20062007: 2 January 2007 to 31 December 20072008: 1 January 2008 to 28 December 20082009: 4 January 2009 to 25 December 20092010: 20 January 2010 to 31 December 201019611967197619821989199520022008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Altamira meeting 30 C (86 F).
First to last qualifying date each year at Altamira
YearFirst dateLast date
19611961-01-051961-12-31
19621962-01-031962-12-22
19631963-01-081963-12-12
19641964-01-081964-12-30
19651965-01-021965-12-31
19661966-01-311966-12-27
19671967-01-151967-12-31
19701970-01-171970-12-31
19711971-01-011971-12-30
19731973-01-051973-12-31
19741974-01-011974-12-28
19751975-01-271975-12-31
19761976-01-011976-12-30
19771977-01-091977-12-30
19781978-02-121978-12-31
19791979-01-061979-12-23
19801980-01-261980-11-13
19811981-02-071981-12-28
19821982-01-021982-12-24
19831983-01-291983-11-30
19841984-02-161984-11-09
19851985-01-301985-12-31
19861986-01-181986-11-28
19881988-01-171988-12-30
19891989-01-051989-11-28
19901990-01-161990-11-27
19911991-02-141991-12-22
19921992-01-141992-11-22
19931993-02-111993-11-19
19941994-02-091994-11-29
19951995-01-061995-12-31
19961996-01-071996-12-24
19971997-01-011997-12-27
19981998-01-021998-12-31
19991999-01-011999-12-31
20002000-01-012000-12-27
20022002-01-052002-12-31
20032003-01-012003-12-31
20042004-01-012004-12-31
20052005-01-012005-12-31
20062006-01-012006-12-31
20072007-01-022007-12-31
20082008-01-012008-12-28
20092009-01-042009-12-25
20102010-01-202010-12-31

Every Fixed Threshold

Fixed thresholds at Altamira
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days453362003274
35 C (95 F): Days452452000128
40 C (104 F): Days4314019629
45 C (113 F): Days162419621
50 C (122 F): Days3319981
90 F (32.2 C): Days452941999177
100 F (37.8 C): Days45196196228
110 F (43.3 C): Days214519623
120 F (48.9 C): Days3419983
0 C (32 F): Frost days (min5619621
20 C (68 F): Tropical nights (min442591995167
25 C (77 F): Days with min44128199836
10 mm (0.39 in): Days with 10 mm or more rain4558197640
25 mm (0.98 in): Days with 25 mm or more rain4533197613
50 mm (1.97 in): Days with 50 mm or more rain451820078
100 mm (3.94 in): Days with 100 mm or more rain37619762
200 mm (7.87 in): Days with 200 mm or more rain6119661

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

  • Data for Altamira 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).