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Built 2026-10-19 (19 October 2026)

Acapulco KM. 21 Threshold Days by Year (MXN00012172)

12 fixed thresholds counted per year at Acapulco KM. 21 (MXN00012172): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Acapulco KM. 21 Thresholds

  • Acapulco KM. 21: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1999 with 37.
  • Acapulco KM. 21: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1996 with 22.
  • Acapulco KM. 21: days with 50 mm (1.97 in) or more of precipitation in 34 years, most in 1993 with 14.
  • Acapulco KM. 21: days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 1972 with 366.
  • 12 fixed thresholds have at least one qualifying day at Acapulco KM. 21.
32 years with a qualifying day
Days at or above 30 C (86 F) per year at Acapulco KM. 21 Days per year at Acapulco KM. 21 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 366 in 1972. 01002003004001972: 3661973: 3641974: 3641975: 3331976: 3511977: 3541978: 3501979: 3601980: 3571981: 3571982: 3571983: 3581984: 3561985: 3631986: 3581987: 3601988: 3301989: 3541990: 3621993: 3621994: 3571995: 3561996: 3521997: 3601998: 3581999: 3282001: 3342002: 3222007: 3462008: 3472009: 3602010: 32119721976198019841988199419982007
Days per year at Acapulco KM. 21 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 366 in 1972.
Days at or above 30 C (86 F) per year at Acapulco KM. 21
YearDaysDecade average
1972366355.3
1973364355.3
1974364355.3
1975333355.3
1976351355.3
1977354355.3
1978350355.3
1979360355.3
1980357355
1981357355
1982357355
1983358355
1984356355
1985363355
1986358355
1987360355
1988330355
1989354355
1990362354.4
1993362354.4
1994357354.4
1995356354.4
1996352354.4
1997360354.4
1998358354.4
1999328354.4
2001334341.8
2002322341.8
2007346341.8
2008347341.8
2009360341.8
2010321321
First to last qualifying date each year at Acapulco KM. 21 For each year, a bar from the first to the last day at Acapulco KM. 21 meeting 30 C (86 F). 1972: 1 January 1972 to 31 December 19721973: 1 January 1973 to 31 December 19731974: 1 January 1974 to 31 December 19741975: 1 January 1975 to 31 December 19751976: 1 January 1976 to 31 December 19761977: 1 January 1977 to 23 December 19771978: 12 January 1978 to 31 December 19781979: 1 January 1979 to 31 December 19791980: 1 January 1980 to 31 December 19801981: 1 January 1981 to 31 December 19811982: 1 January 1982 to 31 December 19821983: 1 January 1983 to 31 December 19831984: 1 January 1984 to 31 December 19841985: 1 January 1985 to 31 December 19851986: 1 January 1986 to 31 December 19861987: 1 January 1987 to 31 December 19871988: 1 January 1988 to 31 December 19881989: 1 January 1989 to 31 December 19891990: 1 January 1990 to 31 December 19901993: 1 January 1993 to 31 December 19931994: 1 January 1994 to 31 December 19941995: 1 January 1995 to 31 December 19951996: 1 January 1996 to 31 December 19961997: 1 January 1997 to 31 December 19971998: 1 January 1998 to 31 December 19981999: 1 January 1999 to 31 December 19992001: 8 January 2001 to 19 December 20012002: 1 January 2002 to 17 December 20022007: 1 January 2007 to 31 December 20072008: 1 January 2008 to 31 December 20082009: 1 January 2009 to 31 December 20092010: 1 January 2010 to 30 November 201019721976198019841988199419982007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Acapulco KM. 21 meeting 30 C (86 F).
First to last qualifying date each year at Acapulco KM. 21
YearFirst dateLast date
19721972-01-011972-12-31
19731973-01-011973-12-31
19741974-01-011974-12-31
19751975-01-011975-12-31
19761976-01-011976-12-31
19771977-01-011977-12-23
19781978-01-121978-12-31
19791979-01-011979-12-31
19801980-01-011980-12-31
19811981-01-011981-12-31
19821982-01-011982-12-31
19831983-01-011983-12-31
19841984-01-011984-12-31
19851985-01-011985-12-31
19861986-01-011986-12-31
19871987-01-011987-12-31
19881988-01-011988-12-31
19891989-01-011989-12-31
19901990-01-011990-12-31
19931993-01-011993-12-31
19941994-01-011994-12-31
19951995-01-011995-12-31
19961996-01-011996-12-31
19971997-01-011997-12-31
19981998-01-011998-12-31
19991999-01-011999-12-31
20012001-01-082001-12-19
20022002-01-012002-12-17
20072007-01-012007-12-31
20082008-01-012008-12-31
20092009-01-012009-12-31
20102010-01-012010-11-30

Every Fixed Threshold

Fixed thresholds at Acapulco KM. 21
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days323661972321
35 C (95 F): Days32352197283
40 C (104 F): Days830197217
90 F (32.2 C): Days323601972202
100 F (37.8 C): Days1818619722
20 C (68 F): Tropical nights (min323651993191
25 C (77 F): Days with min139219952
10 mm (0.39 in): Days with 10 mm or more rain3437199936
25 mm (0.98 in): Days with 25 mm or more rain3422199617
50 mm (1.97 in): Days with 50 mm or more rain341419939
100 mm (3.94 in): Days with 100 mm or more rain22619932
200 mm (7.87 in): Days with 200 mm or more rain3119741

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1972.

Download the Data

  • Data for Acapulco KM. 21 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).