Omealca Threshold Days by Year (MXN00030119)

12 fixed thresholds counted per year at Omealca (MXN00030119): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Omealca Thresholds

Omealca: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 1960 with 259.
Omealca: days with a maximum temperature at or above 35 C (95 F) in 23 years, most in 1952 with 75.
Omealca: days with a maximum temperature at or above 90 F (32.2 C) in 23 years, most in 1960 with 102.
Omealca: nights with a minimum temperature at or above 20 C (68 F) in 23 years, most in 1953 with 192.
12 fixed thresholds have at least one qualifying day at Omealca.

Days at or above 30 C (86 F)

23 years with a qualifying day

Days per year at Omealca with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 259 in 1960.

Days at or above 30 C (86 F) per year at Omealca
Year	Days	Decade average
1952	172	191.4
1953	201	191.4
1954	166	191.4
1955	185	191.4
1956	179	191.4
1957	221	191.4
1958	191	191.4
1959	216	191.4
1960	259	184.9
1963	148	184.9
1964	177	184.9
1965	191	184.9
1966	185	184.9
1967	170	184.9
1968	165	184.9
1969	184	184.9
1970	164	140.6
1973	119	140.6
1974	103	140.6
1976	99	140.6
1977	143	140.6
1978	158	140.6
1979	198	140.6

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

First to last qualifying date each year at Omealca
Year	First date	Last date
1952	1952-01-22	1952-12-22
1953	1953-01-08	1953-12-23
1954	1954-02-15	1954-11-14
1955	1955-01-03	1955-11-17
1956	1956-01-19	1956-12-23
1957	1957-01-09	1957-12-21
1958	1958-02-23	1958-11-19
1959	1959-01-27	1959-10-20
1960	1960-01-01	1960-12-31
1963	1963-01-10	1963-12-14
1964	1964-02-13	1964-12-26
1965	1965-01-30	1965-12-14
1966	1966-02-09	1966-12-15
1967	1967-01-23	1967-11-26
1968	1968-03-04	1968-12-22
1969	1969-01-09	1969-12-29
1970	1970-01-29	1970-10-29
1973	1973-02-01	1973-12-31
1974	1974-01-08	1974-10-30
1976	1976-01-14	1976-11-27
1977	1977-02-23	1977-12-17
1978	1978-02-12	1978-12-31
1979	1979-01-01	1979-12-31

Every Fixed Threshold

Fixed thresholds at Omealca
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	23	259	1960	198
35 C (95 F): Days	23	75	1952	2
40 C (104 F): Days	5	23	1952	1
90 F (32.2 C): Days	23	102	1960	30
100 F (37.8 C): Days	17	55	1952	1
20 C (68 F): Tropical nights (min	23	192	1953	2
25 C (77 F): Days with min	4	4	1952	1
10 mm (0.39 in): Days with 10 mm or more rain	23	74	1964	61
25 mm (0.98 in): Days with 25 mm or more rain	23	47	1952	26
50 mm (1.97 in): Days with 50 mm or more rain	23	18	1969	11
100 mm (3.94 in): Days with 100 mm or more rain	19	5	1955	1
200 mm (7.87 in): Days with 200 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 1952.

Download the Data

Data for Omealca 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).

Omealca Threshold Days by Year (MXN00030119)

Key Facts for Omealca Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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