Aldama Threshold Days by Year (MXN00011004)

10 fixed thresholds counted per year at Aldama (MXN00011004): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Aldama Thresholds

Aldama: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1959 with 41.
Aldama: days with 25 mm (0.98 in) or more of precipitation in 47 years, most in 1959 with 15.
Aldama: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1969 with 320.
Aldama: days with a maximum temperature at or above 90 F (32.2 C) in 40 years, most in 1969 with 229.
10 fixed thresholds have at least one qualifying day at Aldama.

Days at or above 30 C (86 F)

41 years with a qualifying day

Days per year at Aldama with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 320 in 1969.

Days at or above 30 C (86 F) per year at Aldama
Year	Days	Decade average
1962	217	193.5
1963	149	193.5
1964	166	193.5
1965	175	193.5
1966	156	193.5
1967	185	193.5
1968	180	193.5
1969	320	193.5
1970	201	139.6
1971	139	139.6
1972	194	139.6
1973	155	139.6
1974	139	139.6
1976	102	139.6
1977	94	139.6
1978	101	139.6
1979	131	139.6
1980	141	87.1
1981	99	87.1
1982	163	87.1
1983	73	87.1
1984	26	87.1
1985	36	87.1
1986	52	87.1
1987	61	87.1
1988	76	87.1
1989	144	87.1
1990	72	132.5
1991	75	132.5
1992	13	132.5
1993	49	132.5
1995	152	132.5
1996	191	132.5
1998	261	132.5
1999	247	132.5
2000	256	148
2001	82	148
2003	65	148
2008	189	148
2011	95	96
2012	97	96

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

First to last qualifying date each year at Aldama
Year	First date	Last date
1962	1962-01-14	1962-12-17
1963	1963-02-01	1963-11-26
1964	1964-01-21	1964-12-17
1965	1965-01-09	1965-12-27
1966	1966-01-02	1966-11-26
1967	1967-01-30	1967-12-09
1968	1968-01-02	1968-12-05
1969	1969-01-13	1969-12-31
1970	1970-01-04	1970-12-30
1971	1971-01-18	1971-11-24
1972	1972-01-06	1972-12-10
1973	1973-01-04	1973-11-23
1974	1974-01-09	1974-11-19
1976	1976-02-06	1976-09-13
1977	1977-03-10	1977-10-28
1978	1978-03-12	1978-09-14
1979	1979-03-13	1979-10-30
1980	1980-03-09	1980-11-28
1981	1981-02-28	1981-12-03
1982	1982-02-11	1982-10-07
1983	1983-03-25	1983-06-30
1984	1984-03-18	1984-10-18
1985	1985-04-19	1985-08-14
1986	1986-03-31	1986-06-02
1987	1987-05-02	1987-07-29
1988	1988-03-18	1988-12-01
1989	1989-03-02	1989-10-06
1990	1990-04-02	1990-07-02
1991	1991-03-09	1991-06-17
1992	1992-05-04	1992-10-31
1993	1993-02-24	1993-08-13
1995	1995-05-01	1995-11-24
1996	1996-02-15	1996-12-28
1998	1998-02-09	1998-12-30
1999	1999-02-01	1999-12-10
2000	2000-01-01	2000-12-23
2001	2001-01-15	2001-12-15
2003	2003-06-28	2003-12-31
2008	2008-03-21	2008-10-25
2011	2011-03-04	2011-09-30
2012	2012-03-01	2012-10-27

Every Fixed Threshold

Fixed thresholds at Aldama
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	41	320	1969	97
35 C (95 F): Days	33	152	1969	5
40 C (104 F): Days	3	4	1989	2
90 F (32.2 C): Days	40	229	1969	26
100 F (37.8 C): Days	18	20	1969	1
0 C (32 F): Frost days (min	24	19	1995	1
20 C (68 F): Tropical nights (min	4	1	1979	1
10 mm (0.39 in): Days with 10 mm or more rain	51	41	1959	17
25 mm (0.98 in): Days with 25 mm or more rain	47	15	1959	7
50 mm (1.97 in): Days with 50 mm or more rain	22	3	1959	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.

Download the Data

Data for Aldama 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).

Aldama Threshold Days by Year (MXN00011004)

Key Facts for Aldama Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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