Atoyac Threshold Days by Year (MXN00014018)

10 fixed thresholds counted per year at Atoyac (MXN00014018): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Atoyac Thresholds

Atoyac: days with 10 mm (0.39 in) or more of precipitation in 61 years, most in 1967 with 33.
Atoyac: days with 25 mm (0.98 in) or more of precipitation in 60 years, most in 1966 with 12.
Atoyac: days with a maximum temperature at or above 30 C (86 F) in 56 years, most in 2011 with 289.
Atoyac: days with a maximum temperature at or above 90 F (32.2 C) in 56 years, most in 1994 with 140.
10 fixed thresholds have at least one qualifying day at Atoyac.

Days at or above 30 C (86 F)

56 years with a qualifying day

Days per year at Atoyac with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 289 in 2011.

Days at or above 30 C (86 F) per year at Atoyac
Year	Days	Decade average
1948	133	131
1949	129	131
1950	147	174.6
1951	202	174.6
1952	165	174.6
1953	182	174.6
1954	181	174.6
1955	150	174.6
1956	175	174.6
1957	228	174.6
1958	161	174.6
1959	155	174.6
1960	201	184.3
1961	188	184.3
1962	174	184.3
1963	168	184.3
1964	153	184.3
1965	166	184.3
1966	185	184.3
1967	188	184.3
1968	176	184.3
1969	244	184.3
1970	136	116.9
1971	109	116.9
1972	113	116.9
1973	117	116.9
1974	108	116.9
1975	109	116.9
1976	122	116.9
1977	90	116.9
1978	110	116.9
1979	155	116.9
1980	127	157.2
1981	121	157.2
1982	184	157.2
1983	103	157.2
1984	143	157.2
1985	146	157.2
1986	185	157.2
1987	182	157.2
1988	224	157.2
1991	219	228.6
1992	153	228.6
1994	280	228.6
1995	254	228.6
1996	232	228.6
1997	250	228.6
1999	212	228.6
2000	247	235
2005	217	235
2006	216	235
2007	233	235
2008	230	235
2009	267	235
2010	223	256
2011	289	256

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

First to last qualifying date each year at Atoyac
Year	First date	Last date
1948	1948-02-02	1948-12-22
1949	1949-02-16	1949-12-20
1950	1950-01-03	1950-12-15
1951	1951-01-20	1951-12-28
1952	1952-01-02	1952-12-23
1953	1953-01-09	1953-12-26
1954	1954-01-04	1954-12-10
1955	1955-01-26	1955-11-23
1956	1956-02-08	1956-12-09
1957	1957-01-05	1957-12-23
1958	1958-01-28	1958-11-14
1959	1959-01-19	1959-12-13
1960	1960-01-04	1960-12-20
1961	1961-01-30	1961-11-29
1962	1962-01-16	1962-12-13
1963	1963-01-08	1963-11-07
1964	1964-01-21	1964-11-28
1965	1965-02-26	1965-12-13
1966	1966-02-28	1966-11-18
1967	1967-02-03	1967-11-29
1968	1968-01-27	1968-11-11
1969	1969-01-31	1969-12-31
1970	1970-01-01	1970-10-27
1971	1971-01-29	1971-06-17
1972	1972-01-26	1972-11-11
1973	1973-02-05	1973-11-08
1974	1974-02-13	1974-11-08
1975	1975-02-03	1975-12-05
1976	1976-02-11	1976-10-04
1977	1977-03-09	1977-10-11
1978	1978-01-29	1978-12-16
1979	1979-01-31	1979-11-22
1980	1980-02-20	1980-10-24
1981	1981-02-12	1981-11-30
1982	1982-01-22	1982-11-23
1983	1983-03-07	1983-10-14
1984	1984-02-28	1984-11-08
1985	1985-02-18	1985-12-31
1986	1986-01-01	1986-11-25
1987	1987-02-18	1987-12-08
1988	1988-01-04	1988-12-31
1991	1991-01-01	1991-12-06
1992	1992-02-16	1992-12-31
1994	1994-01-03	1994-12-24
1995	1995-01-05	1995-12-10
1996	1996-01-02	1996-12-31
1997	1997-01-04	1997-12-31
1999	1999-01-10	1999-11-21
2000	2000-01-01	2000-12-08
2005	2005-01-04	2005-12-31
2006	2006-01-01	2006-12-18
2007	2007-01-07	2007-12-31
2008	2008-01-01	2008-12-31
2009	2009-01-01	2009-12-31
2010	2010-01-19	2010-12-22
2011	2011-01-02	2011-12-31

Every Fixed Threshold

Fixed thresholds at Atoyac
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	56	289	2011	289
35 C (95 F): Days	55	85	2011	85
40 C (104 F): Days	2	4	2011	4
90 F (32.2 C): Days	56	140	1994	138
100 F (37.8 C): Days	19	27	1995	17
0 C (32 F): Frost days (min	2	1	1955	1
20 C (68 F): Tropical nights (min	4	4	1992	1
10 mm (0.39 in): Days with 10 mm or more rain	61	33	1967	22
25 mm (0.98 in): Days with 25 mm or more rain	60	12	1966	2
50 mm (1.97 in): Days with 50 mm or more rain	25	3	1992	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

Data for Atoyac 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).

Atoyac Threshold Days by Year (MXN00014018)

Key Facts for Atoyac Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related