Chalchihuites (Smn) Threshold Days by Year (MXN00032065)

9 fixed thresholds counted per year at Chalchihuites (Smn) (MXN00032065): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chalchihuites (Smn) Thresholds

Chalchihuites (Smn): days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1986 with 30.
Chalchihuites (Smn): days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 1982 with 107.
Chalchihuites (Smn): days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1968 with 10.
Chalchihuites (Smn): days with a maximum temperature at or above 90 F (32.2 C) in 31 years, most in 1982 with 47.
9 fixed thresholds have at least one qualifying day at Chalchihuites (Smn).

Days at or above 30 C (86 F)

33 years with a qualifying day

Days per year at Chalchihuites (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 107 in 1982.

Days at or above 30 C (86 F) per year at Chalchihuites (Smn)
Year	Days	Decade average
1967	23	28.7
1968	25	28.7
1969	38	28.7
1970	34	32.2
1972	30	32.2
1973	16	32.2
1976	39	32.2
1977	42	32.2
1980	81	61
1981	47	61
1982	107	61
1983	71	61
1984	48	61
1985	48	61
1986	52	61
1987	37	61
1988	57	61
1989	62	61
1991	67	55.6
1992	21	55.6
1993	44	55.6
1994	49	55.6
1995	38	55.6
1996	62	55.6
1997	69	55.6
1998	82	55.6
1999	68	55.6
2000	51	38.6
2005	38	38.6
2006	42	38.6
2007	21	38.6
2009	41	38.6
2012	1	1

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

First to last qualifying date each year at Chalchihuites (Smn)
Year	First date	Last date
1967	1967-04-16	1967-06-13
1968	1968-04-15	1968-06-28
1969	1969-04-03	1969-06-22
1970	1970-04-01	1970-06-17
1972	1972-04-04	1972-06-23
1973	1973-05-12	1973-06-18
1976	1976-03-12	1976-08-14
1977	1977-03-15	1977-10-11
1980	1980-03-08	1980-10-18
1981	1981-03-23	1981-08-03
1982	1982-03-08	1982-10-03
1983	1983-04-01	1983-07-27
1984	1984-03-14	1984-06-10
1985	1985-03-02	1985-06-18
1986	1986-02-20	1986-06-13
1987	1987-04-15	1987-10-03
1988	1988-02-27	1988-06-26
1989	1989-04-04	1989-09-11
1991	1991-03-09	1991-08-15
1992	1992-04-22	1992-08-06
1993	1993-04-13	1993-08-05
1994	1994-03-16	1994-06-27
1995	1995-03-26	1995-10-01
1996	1996-04-20	1996-08-22
1997	1997-05-02	1997-10-07
1998	1998-03-24	1998-08-07
1999	1999-03-26	1999-09-27
2000	2000-02-26	2000-09-17
2005	2005-04-08	2005-06-26
2006	2006-03-14	2006-06-30
2007	2007-02-22	2007-06-08
2009	2009-03-04	2009-08-07
2012	2012-06-30	2012-06-30

Every Fixed Threshold

Fixed thresholds at Chalchihuites (Smn)
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	33	107	1982	1
35 C (95 F): Days	18	24	1983	2
90 F (32.2 C): Days	31	47	1982	11
100 F (37.8 C): Days	6	5	1983	1
0 C (32 F): Frost days (min	29	26	1973	4
20 C (68 F): Tropical nights (min	1	1	2009	1
10 mm (0.39 in): Days with 10 mm or more rain	35	30	1986	16
25 mm (0.98 in): Days with 25 mm or more rain	32	10	1968	1
50 mm (1.97 in): Days with 50 mm or more rain	16	4	1968	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

Data for Chalchihuites (Smn) 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).

Chalchihuites (Smn) Threshold Days by Year (MXN00032065)

Key Facts for Chalchihuites (Smn) Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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