El Zapote Threshold Days by Year (MXN00016047)

13 fixed thresholds counted per year at El Zapote (MXN00016047): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for El Zapote Thresholds

El Zapote: nights with a minimum temperature at or above 20 C (68 F) in 43 years, most in 1968 with 327.
El Zapote: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1955 with 32.
El Zapote: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 2008 with 366.
El Zapote: days with a maximum temperature at or above 35 C (95 F) in 42 years, most in 2009 with 356.
13 fixed thresholds have at least one qualifying day at El Zapote.

Days at or above 30 C (86 F)

42 years with a qualifying day

Days per year at El Zapote with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 366 in 2008.

Days at or above 30 C (86 F) per year at El Zapote
Year	Days	Decade average
1954	356	349.3
1955	318	349.3
1956	358	349.3
1957	360	349.3
1958	350	349.3
1959	354	349.3
1960	365	341.4
1961	363	341.4
1962	357	341.4
1963	359	341.4
1964	330	341.4
1965	330	341.4
1966	319	341.4
1967	323	341.4
1968	308	341.4
1969	360	341.4
1970	362	347.9
1972	359	347.9
1973	329	347.9
1974	327	347.9
1975	330	347.9
1976	350	347.9
1977	359	347.9
1978	355	347.9
1979	360	347.9
1980	354	353.9
1981	352	353.9
1982	360	353.9
1983	349	353.9
1984	345	353.9
1985	359	353.9
1986	358	353.9
1997	333	327.5
1998	322	327.5
2004	352	360.7
2005	362	360.7
2006	358	360.7
2007	362	360.7
2008	366	360.7
2009	364	360.7
2010	362	363
2011	364	363

For each year, a bar from the first to the last day at El Zapote meeting 30 C (86 F).

First to last qualifying date each year at El Zapote
Year	First date	Last date
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-11-30
1956	1956-01-01	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-01	1959-12-31
1960	1960-01-01	1960-12-31
1961	1961-01-01	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-11-30
1966	1966-01-28	1966-12-31
1967	1967-01-01	1967-12-30
1968	1968-01-02	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-02-01	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-31
1980	1980-01-01	1980-12-31
1981	1981-01-01	1981-12-31
1982	1982-01-01	1982-12-31
1983	1983-01-02	1983-12-31
1984	1984-01-01	1984-12-31
1985	1985-01-01	1985-12-31
1986	1986-01-01	1986-12-31
1997	1997-01-01	1997-12-31
1998	1998-01-01	1998-12-31
2004	2004-01-04	2004-12-31
2005	2005-01-01	2005-12-31
2006	2006-01-01	2006-12-31
2007	2007-01-01	2007-12-31
2008	2008-01-01	2008-12-31
2009	2009-01-01	2009-12-31
2010	2010-01-01	2010-12-31
2011	2011-01-01	2011-12-31

Every Fixed Threshold

Fixed thresholds at El Zapote
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	42	366	2008	364
35 C (95 F): Days	42	356	2009	349
40 C (104 F): Days	40	187	1965	95
45 C (113 F): Days	3	38	1965	38
90 F (32.2 C): Days	42	366	2008	363
100 F (37.8 C): Days	42	250	1965	212
110 F (43.3 C): Days	9	71	1965	1
20 C (68 F): Tropical nights (min	43	327	1968	176
25 C (77 F): Days with min	40	125	2004	14
10 mm (0.39 in): Days with 10 mm or more rain	43	32	1955	28
25 mm (0.98 in): Days with 25 mm or more rain	41	14	1967	9
50 mm (1.97 in): Days with 50 mm or more rain	26	5	1984	2
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1968	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

Data for El Zapote 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

El Zapote Threshold Days by Year (MXN00016047)

Key Facts for El Zapote Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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