Tomatlan Threshold Days by Year (MXN00014152)

13 fixed thresholds counted per year at Tomatlan (MXN00014152): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tomatlan Thresholds

Tomatlan: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1963 with 61.
Tomatlan: days with 25 mm (0.98 in) or more of precipitation in 47 years, most in 1970 with 15.
Tomatlan: days with a maximum temperature at or above 30 C (86 F) in 45 years, most in 1956 with 365.
Tomatlan: days with a maximum temperature at or above 35 C (95 F) in 45 years, most in 1972 with 212.
13 fixed thresholds have at least one qualifying day at Tomatlan.

Days at or above 30 C (86 F)

45 years with a qualifying day

Days per year at Tomatlan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 365 in 1956.

Days at or above 30 C (86 F) per year at Tomatlan
Year	Days	Decade average
1940	325	213
1942	101	213
1951	356	360.6
1952	362	360.6
1953	359	360.6
1955	360	360.6
1956	365	360.6
1957	361	360.6
1958	357	360.6
1959	365	360.6
1960	328	344.5
1961	334	344.5
1962	363	344.5
1963	355	344.5
1964	328	344.5
1965	355	344.5
1966	342	344.5
1967	339	344.5
1968	346	344.5
1969	355	344.5
1970	339	355.3
1971	350	355.3
1972	359	355.3
1973	361	355.3
1974	363	355.3
1975	365	355.3
1976	365	355.3
1978	346	355.3
1979	350	355.3
1980	344	329.6
1984	354	329.6
1987	301	329.6
1988	317	329.6
1989	332	329.6
1990	332	337
1992	319	337
1993	351	337
1994	348	337
1995	335	337
1997	339	337
1998	328	337
1999	344	337
2001	316	333
2002	353	333
2003	330	333

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

First to last qualifying date each year at Tomatlan
Year	First date	Last date
1940	1940-01-09	1940-12-31
1942	1942-03-14	1942-11-23
1951	1951-01-04	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-01	1953-12-31
1955	1955-01-01	1955-12-31
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	1960-12-30
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	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-27
1970	1970-01-02	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-02	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-31
1980	1980-01-01	1980-12-26
1984	1984-01-01	1984-12-31
1987	1987-01-03	1987-12-30
1988	1988-01-01	1988-12-31
1989	1989-01-01	1989-12-31
1990	1990-01-03	1990-12-30
1992	1992-01-02	1992-12-31
1993	1993-01-01	1993-12-31
1994	1994-01-01	1994-12-31
1995	1995-01-01	1995-12-31
1997	1997-01-01	1997-12-31
1998	1998-01-01	1998-12-31
1999	1999-01-01	1999-12-30
2001	2001-01-01	2001-12-31
2002	2002-01-01	2002-12-31
2003	2003-01-01	2003-12-31

Every Fixed Threshold

Fixed thresholds at Tomatlan
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	45	365	1956	330
35 C (95 F): Days	45	212	1972	115
40 C (104 F): Days	12	58	1961	1
45 C (113 F): Days	1	30	1961	30
90 F (32.2 C): Days	45	338	1959	263
100 F (37.8 C): Days	39	63	1961	1
110 F (43.3 C): Days	1	52	1961	52
20 C (68 F): Tropical nights (min	44	244	1972	151
25 C (77 F): Days with min	37	97	1987	2
10 mm (0.39 in): Days with 10 mm or more rain	47	61	1963	22
25 mm (0.98 in): Days with 25 mm or more rain	47	15	1970	14
50 mm (1.97 in): Days with 50 mm or more rain	44	8	1970	4
100 mm (3.94 in): Days with 100 mm or more rain	14	2	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.

Download the Data

Data for Tomatlan 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).

Tomatlan Threshold Days by Year (MXN00014152)

Key Facts for Tomatlan Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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