El Manchon Threshold Days by Year (MXN00012037)

10 fixed thresholds counted per year at El Manchon (MXN00012037): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for El Manchon Thresholds

El Manchon: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 2012 with 87.
El Manchon: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 2003 with 32.
El Manchon: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 1976 with 158.
El Manchon: nights with a minimum temperature at or above 20 C (68 F) in 32 years, most in 1987 with 256.
10 fixed thresholds have at least one qualifying day at El Manchon.

Days at or above 30 C (86 F)

35 years with a qualifying day

Days per year at El Manchon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 158 in 1976.

Days at or above 30 C (86 F) per year at El Manchon
Year	Days	Decade average
1966	53	68.8
1967	88	68.8
1968	74	68.8
1969	60	68.8
1970	48	89.4
1972	115	89.4
1973	109	89.4
1974	12	89.4
1975	71	89.4
1976	158	89.4
1977	106	89.4
1978	64	89.4
1979	122	89.4
1980	122	87.2
1981	85	87.2
1982	76	87.2
1983	82	87.2
1984	76	87.2
1986	54	87.2
1987	112	87.2
1988	99	87.2
1989	79	87.2
1990	95	91.5
1991	108	91.5
1992	83	91.5
1993	92	91.5
1994	70	91.5
1997	101	91.5
2000	113	94.5
2001	130	94.5
2003	112	94.5
2004	89	94.5
2005	115	94.5
2006	8	94.5
2011	6	6

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

First to last qualifying date each year at El Manchon
Year	First date	Last date
1966	1966-03-03	1966-06-14
1967	1967-03-04	1967-06-24
1968	1968-03-30	1968-06-16
1969	1969-04-22	1969-06-30
1970	1970-03-10	1970-07-07
1972	1972-02-29	1972-12-30
1973	1973-02-04	1973-06-14
1974	1974-03-23	1974-05-03
1975	1975-03-05	1975-12-31
1976	1976-03-11	1976-12-27
1977	1977-01-28	1977-11-30
1978	1978-01-30	1978-06-08
1979	1979-01-31	1979-12-21
1980	1980-02-05	1980-12-13
1981	1981-02-22	1981-06-13
1982	1982-02-09	1982-06-19
1983	1983-03-03	1983-06-30
1984	1984-03-07	1984-06-07
1986	1986-03-09	1986-06-01
1987	1987-03-11	1987-07-14
1988	1988-02-29	1988-07-01
1989	1989-03-11	1989-06-14
1990	1990-03-19	1990-06-30
1991	1991-03-08	1991-07-01
1992	1992-03-14	1992-06-22
1993	1993-03-11	1993-06-10
1994	1994-03-30	1994-06-07
1997	1997-02-03	1997-07-28
2000	2000-01-20	2000-08-31
2001	2001-01-20	2001-10-31
2003	2003-02-02	2003-07-29
2004	2004-03-03	2004-07-18
2005	2005-02-10	2005-07-02
2006	2006-03-28	2006-06-20
2011	2011-05-08	2011-06-28

Every Fixed Threshold

Fixed thresholds at El Manchon
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	35	158	1976	6
35 C (95 F): Days	16	69	1972	12
90 F (32.2 C): Days	31	94	1972	59
100 F (37.8 C): Days	1	13	1972	13
20 C (68 F): Tropical nights (min	32	256	1987	37
25 C (77 F): Days with min	1	1	1969	1
10 mm (0.39 in): Days with 10 mm or more rain	43	87	2012	87
25 mm (0.98 in): Days with 25 mm or more rain	43	32	2003	25
50 mm (1.97 in): Days with 50 mm or more rain	31	13	1967	2
100 mm (3.94 in): Days with 100 mm or more rain	3	2	1993	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.

Download the Data

Data for El Manchon 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 Manchon Threshold Days by Year (MXN00012037)

Key Facts for El Manchon Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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