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Built 2026-10-15 (15 October 2026)

Altar (Obs) Threshold Days by Year

14 fixed thresholds counted per year at Altar (Obs) (MXM00076113): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Altar (Obs) Thresholds

  • Altar (Obs): days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1983 with 20.
  • Altar (Obs): days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1971 with 10.
  • Altar (Obs): days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 1963 with 250.
  • Altar (Obs): days with a maximum temperature at or above 35 C (95 F) in 36 years, most in 1964 with 188.
  • 14 fixed thresholds have at least one qualifying day at Altar (Obs).
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Altar (Obs) Days per year at Altar (Obs) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 250 in 1963. 01002003001961: 2101963: 2501964: 2391965: 2221966: 2321967: 2271969: 2031971: 2101972: 2201973: 1981974: 2021975: 1711976: 2041977: 1951978: 2101979: 1981980: 2051981: 2341982: 2031983: 1811984: 1991985: 2061986: 2151987: 2051988: 2181989: 2211992: 2051993: 1861994: 1981997: 2032001: 1982003: 2112004: 2172011: 2162012: 2282025: 51196119661972197619801984198819942004
Days per year at Altar (Obs) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 250 in 1963.
Days at or above 30 C (86 F) per year at Altar (Obs)
YearDaysDecade average
1961210226.1
1963250226.1
1964239226.1
1965222226.1
1966232226.1
1967227226.1
1969203226.1
1971210200.9
1972220200.9
1973198200.9
1974202200.9
1975171200.9
1976204200.9
1977195200.9
1978210200.9
1979198200.9
1980205208.7
1981234208.7
1982203208.7
1983181208.7
1984199208.7
1985206208.7
1986215208.7
1987205208.7
1988218208.7
1989221208.7
1992205198
1993186198
1994198198
1997203198
2001198208.7
2003211208.7
2004217208.7
2011216222
2012228222
20255151
First to last qualifying date each year at Altar (Obs) For each year, a bar from the first to the last day at Altar (Obs) meeting 30 C (86 F). 1961: 16 January 1961 to 27 October 19611963: 30 January 1963 to 30 December 19631964: 1 January 1964 to 26 December 19641965: 17 January 1965 to 7 December 19651966: 8 March 1966 to 2 December 19661967: 12 February 1967 to 18 November 19671969: 18 March 1969 to 4 November 19691971: 19 January 1971 to 10 November 19711972: 19 February 1972 to 17 October 19721973: 10 April 1973 to 15 December 19731974: 28 February 1974 to 13 November 19741975: 27 February 1975 to 13 November 19751976: 27 February 1976 to 8 November 19761977: 15 February 1977 to 3 November 19771978: 17 March 1978 to 10 November 19781979: 7 March 1979 to 4 December 19791980: 2 February 1980 to 16 December 19801981: 13 February 1981 to 9 December 19811982: 21 February 1982 to 7 November 19821983: 10 March 1983 to 14 November 19831984: 8 March 1984 to 13 November 19841985: 14 February 1985 to 20 December 19851986: 18 January 1986 to 31 October 19861987: 4 March 1987 to 20 November 19871988: 11 February 1988 to 14 November 19881989: 22 February 1989 to 15 November 19891992: 13 March 1992 to 15 November 19921993: 7 February 1993 to 10 November 19931994: 18 January 1994 to 2 November 19941997: 15 February 1997 to 26 November 19972001: 19 March 2001 to 19 November 20012003: 26 January 2003 to 2 November 20032004: 7 March 2004 to 5 November 20042011: 3 March 2011 to 3 November 20112012: 3 January 2012 to 26 November 20122025: 5 February 2025 to 23 August 202519611967197419791984198920012025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Altar (Obs) meeting 30 C (86 F).
First to last qualifying date each year at Altar (Obs)
YearFirst dateLast date
19611961-01-161961-10-27
19631963-01-301963-12-30
19641964-01-011964-12-26
19651965-01-171965-12-07
19661966-03-081966-12-02
19671967-02-121967-11-18
19691969-03-181969-11-04
19711971-01-191971-11-10
19721972-02-191972-10-17
19731973-04-101973-12-15
19741974-02-281974-11-13
19751975-02-271975-11-13
19761976-02-271976-11-08
19771977-02-151977-11-03
19781978-03-171978-11-10
19791979-03-071979-12-04
19801980-02-021980-12-16
19811981-02-131981-12-09
19821982-02-211982-11-07
19831983-03-101983-11-14
19841984-03-081984-11-13
19851985-02-141985-12-20
19861986-01-181986-10-31
19871987-03-041987-11-20
19881988-02-111988-11-14
19891989-02-221989-11-15
19921992-03-131992-11-15
19931993-02-071993-11-10
19941994-01-181994-11-02
19971997-02-151997-11-26
20012001-03-192001-11-19
20032003-01-262003-11-02
20042004-03-072004-11-05
20112011-03-032011-11-03
20122012-01-032012-11-26
20252025-02-052025-08-23

Every Fixed Threshold

Fixed thresholds at Altar (Obs)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days36250196351
35 C (95 F): Days36188196433
40 C (104 F): Days3698196421
45 C (113 F): Days291819805
90 F (32.2 C): Days36209196444
100 F (37.8 C): Days36152196430
110 F (43.3 C): Days353719808
0 C (32 F): Frost days (min339419616
20 C (68 F): Tropical nights (min36138200330
25 C (77 F): Days with min3562201114
10 mm (0.39 in): Days with 10 mm or more rain4220198310
25 mm (0.98 in): Days with 25 mm or more rain421019713
50 mm (1.97 in): Days with 50 mm or more rain17219711
100 mm (3.94 in): Days with 100 mm or more rain2119711

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 Altar (Obs) 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).