Chiconautla Threshold Days by Year (MXN00015022)

10 fixed thresholds counted per year at Chiconautla (MXN00015022): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chiconautla Thresholds

Chiconautla: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 2011 with 41.
Chiconautla: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 2011 with 14.
Chiconautla: nights with a minimum temperature at or below 0 C (32 F) in 35 years, most in 1970 with 89.
Chiconautla: days with a maximum temperature at or above 30 C (86 F) in 30 years, most in 2012 with 313.
10 fixed thresholds have at least one qualifying day at Chiconautla.

Days at or above 30 C (86 F)

30 years with a qualifying day

Days per year at Chiconautla with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 313 in 2012.

Days at or above 30 C (86 F) per year at Chiconautla
Year	Days	Decade average
1964	12	11.2
1965	3	11.2
1966	7	11.2
1967	12	11.2
1969	22	11.2
1970	33	13.9
1971	7	13.9
1972	2	13.9
1973	15	13.9
1974	7	13.9
1975	14	13.9
1977	8	13.9
1978	15	13.9
1979	24	13.9
1980	22	19.1
1981	12	19.1
1982	35	19.1
1983	41	19.1
1984	27	19.1
1985	2	19.1
1986	12	19.1
1987	2	19.1
1998	17	9
1999	1	9
2001	1	2.8
2004	8	2.8
2005	1	2.8
2008	1	2.8
2011	170	241.5
2012	313	241.5

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

First to last qualifying date each year at Chiconautla
Year	First date	Last date
1964	1964-04-06	1964-05-07
1965	1965-05-25	1965-05-28
1966	1966-05-12	1966-05-18
1967	1967-04-22	1967-05-13
1969	1969-03-10	1969-06-19
1970	1970-03-21	1970-05-30
1971	1971-04-24	1971-05-19
1972	1972-04-07	1972-05-23
1973	1973-03-12	1973-06-03
1974	1974-04-22	1974-05-17
1975	1975-03-15	1975-05-09
1977	1977-03-18	1977-04-04
1978	1978-04-17	1978-05-13
1979	1979-03-24	1979-05-30
1980	1980-03-10	1980-06-16
1981	1981-04-01	1981-05-18
1982	1982-03-14	1982-06-19
1983	1983-04-06	1983-06-13
1984	1984-03-28	1984-05-07
1985	1985-05-13	1985-05-14
1986	1986-04-03	1986-05-16
1987	1987-05-27	1987-05-28
1998	1998-04-22	1998-06-23
1999	1999-05-03	1999-05-03
2001	2001-05-31	2001-05-31
2004	2004-11-01	2004-11-23
2005	2005-05-02	2005-05-02
2008	2008-04-21	2008-04-21
2011	2011-03-26	2011-12-31
2012	2012-01-04	2012-12-31

Every Fixed Threshold

Fixed thresholds at Chiconautla
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	30	313	2012	313
35 C (95 F): Days	3	102	2012	102
40 C (104 F): Days	1	2	2012	2
90 F (32.2 C): Days	9	226	2012	226
100 F (37.8 C): Days	1	18	2012	18
0 C (32 F): Frost days (min	35	89	1970	5
-10 C (14 F): Days with min	2	2	1976	2
10 mm (0.39 in): Days with 10 mm or more rain	39	41	2011	37
25 mm (0.98 in): Days with 25 mm or more rain	37	14	2011	12
50 mm (1.97 in): Days with 50 mm or more rain	9	4	2011	3

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.

Download the Data

Data for Chiconautla 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).

Chiconautla Threshold Days by Year (MXN00015022)

Key Facts for Chiconautla Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related