San Bartolome Ayautla Threshold Days by Year (MXN00020006)

12 fixed thresholds counted per year at San Bartolome Ayautla (MXN00020006): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Bartolome Ayautla Thresholds

San Bartolome Ayautla: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 1968 with 187.
San Bartolome Ayautla: days with a maximum temperature at or above 90 F (32.2 C) in 28 years, most in 1959 with 123.
San Bartolome Ayautla: nights with a minimum temperature at or above 20 C (68 F) in 28 years, most in 1966 with 172.
San Bartolome Ayautla: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1981 with 120.
12 fixed thresholds have at least one qualifying day at San Bartolome Ayautla.

Days at or above 30 C (86 F)

28 years with a qualifying day

Days per year at San Bartolome Ayautla with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 187 in 1968.

Days at or above 30 C (86 F) per year at San Bartolome Ayautla
Year	Days	Decade average
1956	21	77.5
1957	47	77.5
1958	81	77.5
1959	161	77.5
1960	56	70.7
1961	43	70.7
1962	31	70.7
1963	46	70.7
1964	43	70.7
1965	44	70.7
1966	20	70.7
1967	72	70.7
1968	187	70.7
1969	165	70.7
1970	44	63
1971	67	63
1972	45	63
1973	85	63
1974	73	63
1975	74	63
1976	76	63
1977	60	63
1978	43	63
1980	118	129.2
1981	53	129.2
1982	175	129.2
1983	142	129.2
1984	158	129.2

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

First to last qualifying date each year at San Bartolome Ayautla
Year	First date	Last date
1956	1956-01-22	1956-09-24
1957	1957-03-22	1957-11-18
1958	1958-01-23	1958-12-14
1959	1959-01-02	1959-12-27
1960	1960-01-01	1960-08-04
1961	1961-03-27	1961-12-12
1962	1962-02-09	1962-10-15
1963	1963-01-11	1963-12-12
1964	1964-01-19	1964-12-26
1965	1965-02-01	1965-11-22
1966	1966-02-09	1966-12-28
1967	1967-01-07	1967-12-31
1968	1968-01-01	1968-11-30
1969	1969-01-11	1969-12-29
1970	1970-01-18	1970-11-13
1971	1971-01-02	1971-12-15
1972	1972-01-04	1972-06-27
1973	1973-01-21	1973-12-31
1974	1974-01-14	1974-10-21
1975	1975-01-11	1975-12-14
1976	1976-01-08	1976-12-31
1977	1977-01-09	1977-12-17
1978	1978-01-16	1978-12-23
1980	1980-01-06	1980-11-14
1981	1981-02-10	1981-12-19
1982	1982-03-04	1982-11-03
1983	1983-03-03	1983-11-28
1984	1984-03-04	1984-12-30

Every Fixed Threshold

Fixed thresholds at San Bartolome Ayautla
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	28	187	1968	158
35 C (95 F): Days	26	76	1959	17
40 C (104 F): Days	3	1	1969	1
90 F (32.2 C): Days	28	123	1959	55
100 F (37.8 C): Days	19	31	1959	1
20 C (68 F): Tropical nights (min	28	172	1966	59
25 C (77 F): Days with min	7	12	1980	1
10 mm (0.39 in): Days with 10 mm or more rain	28	120	1981	93
25 mm (0.98 in): Days with 25 mm or more rain	28	64	1976	36
50 mm (1.97 in): Days with 50 mm or more rain	28	25	1981	19
100 mm (3.94 in): Days with 100 mm or more rain	25	5	1980	4
200 mm (7.87 in): Days with 200 mm or more rain	5	1	1958	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

Download the Data

Data for San Bartolome Ayautla 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).

San Bartolome Ayautla Threshold Days by Year (MXN00020006)

Key Facts for San Bartolome Ayautla Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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