Petatlan Threshold Days by Year (MXN00012064)

11 fixed thresholds counted per year at Petatlan (MXN00012064): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Petatlan Thresholds

Petatlan: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1947 with 58.
Petatlan: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1955 with 37.
Petatlan: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1955 with 27.
Petatlan: days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 1947 with 365.
11 fixed thresholds have at least one qualifying day at Petatlan.

Days at or above 30 C (86 F)

27 years with a qualifying day

Days per year at Petatlan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 365 in 1947.

Days at or above 30 C (86 F) per year at Petatlan
Year	Days	Decade average
1942	362	355.6
1945	364	355.6
1946	353	355.6
1947	365	355.6
1948	334	355.6
1950	365	365
1954	365	365
1955	365	365
1964	355	351.8
1965	354	351.8
1966	350	351.8
1967	352	351.8
1968	351	351.8
1969	349	351.8
1970	353	349.6
1971	350	349.6
1972	359	349.6
1973	333	349.6
1974	351	349.6
1975	340	349.6
1976	354	349.6
1977	364	349.6
1978	357	349.6
1979	335	349.6
1980	351	350.7
1981	343	350.7
1982	358	350.7

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

First to last qualifying date each year at Petatlan
Year	First date	Last date
1942	1942-01-01	1942-12-31
1945	1945-01-01	1945-12-31
1946	1946-01-01	1946-12-31
1947	1947-01-01	1947-12-31
1948	1948-01-01	1948-12-31
1950	1950-01-01	1950-12-31
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-31
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	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	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	1980-12-30
1981	1981-01-01	1981-12-31
1982	1982-01-01	1982-12-31

Every Fixed Threshold

Fixed thresholds at Petatlan
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	27	365	1947	358
35 C (95 F): Days	24	146	1977	85
90 F (32.2 C): Days	27	342	1945	267
100 F (37.8 C): Days	11	10	1965	1
20 C (68 F): Tropical nights (min	24	349	1945	297
25 C (77 F): Days with min	14	24	1980	5
10 mm (0.39 in): Days with 10 mm or more rain	28	58	1947	15
25 mm (0.98 in): Days with 25 mm or more rain	28	37	1955	7
50 mm (1.97 in): Days with 50 mm or more rain	28	27	1955	1
100 mm (3.94 in): Days with 100 mm or more rain	16	9	1955	2
200 mm (7.87 in): Days with 200 mm or more rain	5	2	1967	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

Data for Petatlan 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).

Petatlan Threshold Days by Year (MXN00012064)

Key Facts for Petatlan Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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