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

Riito Threshold Days by Year (MXN00026076)

15 fixed thresholds counted per year at Riito (MXN00026076): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Riito Thresholds

  • Riito: nights with a minimum temperature at or above 20 C (68 F) in 52 years, most in 2001 with 148.
  • Riito: nights with a minimum temperature at or above 25 C (77 F) in 52 years, most in 2005 with 94.
  • Riito: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 2007 with 261.
  • Riito: days with a maximum temperature at or above 35 C (95 F) in 50 years, most in 2007 with 200.
  • 15 fixed thresholds have at least one qualifying day at Riito.
50 years with a qualifying day
Days at or above 30 C (86 F) per year at Riito Days per year at Riito with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 261 in 2007. 01002003001950: 2401951: 2021952: 2051953: 1941955: 2051956: 2141957: 2181958: 1911959: 2151960: 2051961: 1911962: 2081964: 1881965: 2021966: 2051967: 2081968: 1941969: 1861970: 1791971: 1991972: 2171973: 1961974: 1971975: 1881976: 1981977: 2091978: 1971979: 1851980: 1811982: 1771983: 1701984: 1661985: 1841986: 1871987: 1821988: 2151990: 2011991: 1901992: 1931995: 2201996: 2141997: 1862000: 2102001: 2292004: 2012005: 2522006: 2382007: 2612009: 2502010: 1991950195619611967197219771983198819962005
Days per year at Riito with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 261 in 2007.
Days at or above 30 C (86 F) per year at Riito
YearDaysDecade average
1950240209.3
1951202209.3
1952205209.3
1953194209.3
1955205209.3
1956214209.3
1957218209.3
1958191209.3
1959215209.3
1960205198.6
1961191198.6
1962208198.6
1964188198.6
1965202198.6
1966205198.6
1967208198.6
1968194198.6
1969186198.6
1970179196.5
1971199196.5
1972217196.5
1973196196.5
1974197196.5
1975188196.5
1976198196.5
1977209196.5
1978197196.5
1979185196.5
1980181182.8
1982177182.8
1983170182.8
1984166182.8
1985184182.8
1986187182.8
1987182182.8
1988215182.8
1990201200.7
1991190200.7
1992193200.7
1995220200.7
1996214200.7
1997186200.7
2000210234.4
2001229234.4
2004201234.4
2005252234.4
2006238234.4
2007261234.4
2009250234.4
2010199199
First to last qualifying date each year at Riito For each year, a bar from the first to the last day at Riito meeting 30 C (86 F). 1950: 17 February 1950 to 12 December 19501951: 8 February 1951 to 9 November 19511952: 31 March 1952 to 6 November 19521953: 8 March 1953 to 12 November 19531955: 16 February 1955 to 11 November 19551956: 3 March 1956 to 13 November 19561957: 10 February 1957 to 26 November 19571958: 12 February 1958 to 8 November 19581959: 18 January 1959 to 25 November 19591960: 5 March 1960 to 2 November 19601961: 10 March 1961 to 13 November 19611962: 26 March 1962 to 10 November 19621964: 18 March 1964 to 23 December 19641965: 19 January 1965 to 9 November 19651966: 7 March 1966 to 21 November 19661967: 13 February 1967 to 16 November 19671968: 23 February 1968 to 10 November 19681969: 17 March 1969 to 28 October 19691970: 24 March 1970 to 2 November 19701971: 18 January 1971 to 11 November 19711972: 17 February 1972 to 17 October 19721973: 6 April 1973 to 12 November 19731974: 1 March 1974 to 21 October 19741975: 27 February 1975 to 16 November 19751976: 28 February 1976 to 10 November 19761977: 16 February 1977 to 26 November 19771978: 17 March 1978 to 9 November 19781979: 7 March 1979 to 28 October 19791980: 7 April 1980 to 10 November 19801982: 22 February 1982 to 25 October 19821983: 31 March 1983 to 6 November 19831984: 13 March 1984 to 14 October 19841985: 2 April 1985 to 8 November 19851986: 24 February 1986 to 6 November 19861987: 8 April 1987 to 29 October 19871988: 22 February 1988 to 14 November 19881990: 25 February 1990 to 18 November 19901991: 4 April 1991 to 8 November 19911992: 14 March 1992 to 16 November 19921995: 2 February 1995 to 31 December 19951996: 16 January 1996 to 20 November 19961997: 9 March 1997 to 6 November 19972000: 27 January 2000 to 25 October 20002001: 5 February 2001 to 22 November 20012004: 18 February 2004 to 31 October 20042005: 8 March 2005 to 30 December 20052006: 1 February 2006 to 10 December 20062007: 3 January 2007 to 21 December 20072009: 15 January 2009 to 29 November 20092010: 18 February 2010 to 18 November 201019501958196619731980198820002010JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Riito meeting 30 C (86 F).
First to last qualifying date each year at Riito
YearFirst dateLast date
19501950-02-171950-12-12
19511951-02-081951-11-09
19521952-03-311952-11-06
19531953-03-081953-11-12
19551955-02-161955-11-11
19561956-03-031956-11-13
19571957-02-101957-11-26
19581958-02-121958-11-08
19591959-01-181959-11-25
19601960-03-051960-11-02
19611961-03-101961-11-13
19621962-03-261962-11-10
19641964-03-181964-12-23
19651965-01-191965-11-09
19661966-03-071966-11-21
19671967-02-131967-11-16
19681968-02-231968-11-10
19691969-03-171969-10-28
19701970-03-241970-11-02
19711971-01-181971-11-11
19721972-02-171972-10-17
19731973-04-061973-11-12
19741974-03-011974-10-21
19751975-02-271975-11-16
19761976-02-281976-11-10
19771977-02-161977-11-26
19781978-03-171978-11-09
19791979-03-071979-10-28
19801980-04-071980-11-10
19821982-02-221982-10-25
19831983-03-311983-11-06
19841984-03-131984-10-14
19851985-04-021985-11-08
19861986-02-241986-11-06
19871987-04-081987-10-29
19881988-02-221988-11-14
19901990-02-251990-11-18
19911991-04-041991-11-08
19921992-03-141992-11-16
19951995-02-021995-12-31
19961996-01-161996-11-20
19971997-03-091997-11-06
20002000-01-272000-10-25
20012001-02-052001-11-22
20042004-02-182004-10-31
20052005-03-082005-12-30
20062006-02-012006-12-10
20072007-01-032007-12-21
20092009-01-152009-11-29
20102010-02-182010-11-18

Every Fixed Threshold

Fixed thresholds at Riito
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days502612007199
35 C (95 F): Days502002007153
40 C (104 F): Days50149200191
45 C (113 F): Days4764195811
50 C (122 F): Days2919581
90 F (32.2 C): Days502202007171
100 F (37.8 C): Days501762001120
110 F (43.3 C): Days4879200522
120 F (48.9 C): Days71619581
0 C (32 F): Frost days (min353119604
20 C (68 F): Tropical nights (min52148200187
25 C (77 F): Days with min5294200529
10 mm (0.39 in): Days with 10 mm or more rain39419572
25 mm (0.98 in): Days with 25 mm or more rain15219692
50 mm (1.97 in): Days with 50 mm or more rain3219721

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

  • Data for Riito 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).