Built 2026-10-19 (19 October 2026)

Cinco de Mayo Threshold Days by Year (MXN00010008)

14 fixed thresholds counted per year at Cinco de Mayo (MXN00010008): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cinco de Mayo Thresholds

  • Cinco de Mayo: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 2004 with 25.
  • Cinco de Mayo: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 1969 with 203.
  • Cinco de Mayo: days with a maximum temperature at or above 90 F (32.2 C) in 39 years, most in 1979 with 137.
  • Cinco de Mayo: nights with a minimum temperature at or below 0 C (32 F) in 39 years, most in 1966 with 55.
  • 14 fixed thresholds have at least one qualifying day at Cinco de Mayo.
39 years with a qualifying day
Days at or above 30 C (86 F) per year at Cinco de Mayo Days per year at Cinco de Mayo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 203 in 1969. 01002003001965: 1921966: 1721967: 1911968: 1561969: 2031970: 1671971: 1581972: 1831973: 1131974: 1351975: 1511976: 921977: 1631978: 1551979: 2011980: 1451981: 1291982: 1741983: 1361984: 1291986: 1501987: 871988: 1211989: 1221991: 771992: 1131993: 1001994: 1521995: 1851996: 1331997: 1551998: 1672000: 632001: 1892002: 2002003: 1722004: 1162006: 1472008: 41965196919731977198119861991199520002004
Days per year at Cinco de Mayo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 203 in 1969.
Days at or above 30 C (86 F) per year at Cinco de Mayo
YearDaysDecade average
1965192182.8
1966172182.8
1967191182.8
1968156182.8
1969203182.8
1970167151.8
1971158151.8
1972183151.8
1973113151.8
1974135151.8
1975151151.8
197692151.8
1977163151.8
1978155151.8
1979201151.8
1980145132.6
1981129132.6
1982174132.6
1983136132.6
1984129132.6
1986150132.6
198787132.6
1988121132.6
1989122132.6
199177135.3
1992113135.3
1993100135.3
1994152135.3
1995185135.3
1996133135.3
1997155135.3
1998167135.3
200063127.3
2001189127.3
2002200127.3
2003172127.3
2004116127.3
2006147127.3
20084127.3
First to last qualifying date each year at Cinco de Mayo For each year, a bar from the first to the last day at Cinco de Mayo meeting 30 C (86 F). 1965: 9 March 1965 to 30 November 19651966: 12 March 1966 to 7 December 19661967: 29 January 1967 to 23 November 19671968: 23 February 1968 to 15 November 19681969: 27 January 1969 to 13 November 19691970: 24 March 1970 to 26 December 19701971: 30 January 1971 to 14 November 19711972: 10 January 1972 to 9 December 19721973: 25 January 1973 to 28 November 19731974: 5 March 1974 to 10 October 19741975: 1 March 1975 to 29 November 19751976: 12 February 1976 to 31 October 19761977: 24 March 1977 to 9 December 19771978: 1 January 1978 to 4 December 19781979: 1 February 1979 to 10 December 19791980: 4 February 1980 to 14 November 19801981: 21 February 1981 to 17 November 19811982: 23 February 1982 to 1 November 19821983: 31 March 1983 to 13 December 19831984: 2 April 1984 to 17 November 19841986: 18 February 1986 to 18 November 19861987: 13 February 1987 to 24 September 19871988: 2 February 1988 to 28 December 19881989: 12 February 1989 to 19 November 19891991: 5 January 1991 to 27 October 19911992: 7 March 1992 to 26 October 19921993: 18 February 1993 to 30 November 19931994: 15 February 1994 to 25 November 19941995: 14 February 1995 to 11 December 19951996: 4 March 1996 to 14 December 19961997: 5 March 1997 to 28 November 19971998: 31 January 1998 to 20 November 19982000: 15 May 2000 to 29 November 20002001: 26 January 2001 to 2 November 20012002: 17 January 2002 to 14 November 20022003: 18 February 2003 to 21 November 20032004: 19 February 2004 to 22 October 20042006: 18 February 2006 to 8 November 20062008: 28 May 2008 to 16 June 200819651970197519801986199219972003JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Cinco de Mayo meeting 30 C (86 F).
First to last qualifying date each year at Cinco de Mayo
YearFirst dateLast date
19651965-03-091965-11-30
19661966-03-121966-12-07
19671967-01-291967-11-23
19681968-02-231968-11-15
19691969-01-271969-11-13
19701970-03-241970-12-26
19711971-01-301971-11-14
19721972-01-101972-12-09
19731973-01-251973-11-28
19741974-03-051974-10-10
19751975-03-011975-11-29
19761976-02-121976-10-31
19771977-03-241977-12-09
19781978-01-011978-12-04
19791979-02-011979-12-10
19801980-02-041980-11-14
19811981-02-211981-11-17
19821982-02-231982-11-01
19831983-03-311983-12-13
19841984-04-021984-11-17
19861986-02-181986-11-18
19871987-02-131987-09-24
19881988-02-021988-12-28
19891989-02-121989-11-19
19911991-01-051991-10-27
19921992-03-071992-10-26
19931993-02-181993-11-30
19941994-02-151994-11-25
19951995-02-141995-12-11
19961996-03-041996-12-14
19971997-03-051997-11-28
19981998-01-311998-11-20
20002000-05-152000-11-29
20012001-01-262001-11-02
20022002-01-172002-11-14
20032003-02-182003-11-21
20042004-02-192004-10-22
20062006-02-182006-11-08
20082008-05-282008-06-16

Every Fixed Threshold

Fixed thresholds at Cinco de Mayo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3920319694
35 C (95 F): Days38116197938
40 C (104 F): Days91519693
45 C (113 F): Days1319693
90 F (32.2 C): Days3913719791
100 F (37.8 C): Days304119791
110 F (43.3 C): Days1419694
0 C (32 F): Frost days (min3955196631
-10 C (14 F): Days with min1319973
20 C (68 F): Tropical nights (min203920016
25 C (77 F): Days with min3119691
10 mm (0.39 in): Days with 10 mm or more rain4125200414
25 mm (0.98 in): Days with 25 mm or more rain33519713
50 mm (1.97 in): Days with 50 mm or more rain4119931

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.

Download the Data

  • Data for Cinco de Mayo 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).