Ajochitlan Threshold Days by Year (MXN00012138)

14 fixed thresholds counted per year at Ajochitlan (MXN00012138): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ajochitlan Thresholds

Ajochitlan: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1996 with 52.
Ajochitlan: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1998 with 27.
Ajochitlan: days with 50 mm (1.97 in) or more of precipitation in 34 years, most in 1973 with 6.
Ajochitlan: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 1973 with 365.
14 fixed thresholds have at least one qualifying day at Ajochitlan.

Days at or above 30 C (86 F)

33 years with a qualifying day

Days per year at Ajochitlan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 365 in 1973.

Days at or above 30 C (86 F) per year at Ajochitlan
Year	Days	Decade average
1973	365	363.7
1974	361	363.7
1975	362	363.7
1976	364	363.7
1977	364	363.7
1978	365	363.7
1979	365	363.7
1980	329	352.1
1981	347	352.1
1982	363	352.1
1983	359	352.1
1984	340	352.1
1985	350	352.1
1986	357	352.1
1987	364	352.1
1988	358	352.1
1989	354	352.1
1990	363	342.8
1991	346	342.8
1992	335	342.8
1993	364	342.8
1994	364	342.8
1995	361	342.8
1996	360	342.8
1997	344	342.8
1998	278	342.8
1999	313	342.8
2000	355	337.8
2001	363	337.8
2008	268	337.8
2009	365	337.8
2010	358	331.5
2012	305	331.5

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

First to last qualifying date each year at Ajochitlan
Year	First date	Last date
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	1980-12-31
1981	1981-01-01	1981-12-31
1982	1982-01-01	1982-12-31
1983	1983-01-01	1983-12-31
1984	1984-01-01	1984-12-31
1985	1985-01-01	1985-12-31
1986	1986-01-01	1986-12-31
1987	1987-01-01	1987-12-31
1988	1988-01-01	1988-12-31
1989	1989-01-01	1989-12-31
1990	1990-01-01	1990-12-31
1991	1991-01-01	1991-12-31
1992	1992-01-01	1992-12-31
1993	1993-01-01	1993-12-31
1994	1994-01-01	1994-12-31
1995	1995-01-01	1995-12-29
1996	1996-01-01	1996-12-31
1997	1997-01-01	1997-12-31
1998	1998-01-01	1998-12-28
1999	1999-01-06	1999-12-31
2000	2000-01-01	2000-12-31
2001	2001-01-01	2001-12-31
2008	2008-01-01	2008-12-31
2009	2009-01-01	2009-12-31
2010	2010-01-01	2010-12-31
2012	2012-01-06	2012-12-31

Every Fixed Threshold

Fixed thresholds at Ajochitlan
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	33	365	1973	305
35 C (95 F): Days	33	337	1996	34
40 C (104 F): Days	31	172	1997	14
45 C (113 F): Days	7	43	1997	14
90 F (32.2 C): Days	33	365	1979	73
100 F (37.8 C): Days	33	244	1996	22
110 F (43.3 C): Days	14	78	1997	25
120 F (48.9 C): Days	3	11	1994	2
20 C (68 F): Tropical nights (min	31	358	2001	332
25 C (77 F): Days with min	29	145	2001	86
10 mm (0.39 in): Days with 10 mm or more rain	34	52	1996	27
25 mm (0.98 in): Days with 25 mm or more rain	34	27	1998	5
50 mm (1.97 in): Days with 50 mm or more rain	34	6	1973	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1973	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1973.

Download the Data

Data for Ajochitlan 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).

Ajochitlan Threshold Days by Year (MXN00012138)

Key Facts for Ajochitlan Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related