Union de Tula Threshold Days by Year (MXN00014158)

11 fixed thresholds counted per year at Union de Tula (MXN00014158): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Union de Tula Thresholds

Union de Tula: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 1967 with 43.
Union de Tula: days with 25 mm (0.98 in) or more of precipitation in 65 years, most in 1967 with 14.
Union de Tula: days with a maximum temperature at or above 30 C (86 F) in 57 years, most in 1928 with 335.
Union de Tula: days with a maximum temperature at or above 90 F (32.2 C) in 57 years, most in 1928 with 198.
11 fixed thresholds have at least one qualifying day at Union de Tula.

Days at or above 30 C (86 F)

57 years with a qualifying day

Days per year at Union de Tula with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 335 in 1928.

Days at or above 30 C (86 F) per year at Union de Tula
Year	Days	Decade average
1928	335	312
1929	289	312
1930	200	177
1931	154	177
1949	128	128
1950	133	144.6
1951	141	144.6
1952	151	144.6
1953	176	144.6
1954	144	144.6
1955	148	144.6
1956	140	144.6
1957	185	144.6
1958	104	144.6
1959	124	144.6
1960	176	98.8
1961	85	98.8
1962	110	98.8
1964	83	98.8
1965	114	98.8
1966	82	98.8
1967	75	98.8
1968	66	98.8
1969	98	98.8
1970	128	151
1971	121	151
1972	144	151
1973	147	151
1974	159	151
1975	150	151
1976	143	151
1977	159	151
1978	168	151
1979	191	151
1980	199	183.6
1981	157	183.6
1982	224	183.6
1983	187	183.6
1985	169	183.6
1986	136	183.6
1987	201	183.6
1988	195	183.6
1989	184	183.6
1990	171	199
1991	203	199
1993	188	199
1994	219	199
1996	192	199
1997	181	199
1998	207	199
1999	231	199
2000	206	199.8
2001	229	199.8
2002	209	199.8
2003	209	199.8
2004	157	199.8
2005	189	199.8

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

First to last qualifying date each year at Union de Tula
Year	First date	Last date
1928	1928-01-02	1928-12-30
1929	1929-01-15	1929-12-30
1930	1930-01-03	1930-12-31
1931	1931-01-03	1931-12-29
1949	1949-02-10	1949-12-15
1950	1950-01-01	1950-12-20
1951	1951-01-21	1951-12-29
1952	1952-01-03	1952-12-13
1953	1953-01-08	1953-11-28
1954	1954-01-03	1954-12-08
1955	1955-02-11	1955-11-24
1956	1956-01-29	1956-12-08
1957	1957-01-01	1957-12-27
1958	1958-01-31	1958-12-02
1959	1959-01-16	1959-12-11
1960	1960-01-03	1960-11-30
1961	1961-03-07	1961-11-27
1962	1962-02-09	1962-11-26
1964	1964-02-13	1964-10-28
1965	1965-03-13	1965-12-03
1966	1966-03-04	1966-11-12
1967	1967-03-10	1967-11-27
1968	1968-02-29	1968-08-14
1969	1969-02-25	1969-11-18
1970	1970-01-30	1970-12-28
1971	1971-01-19	1971-11-21
1972	1972-01-09	1972-12-26
1973	1973-01-28	1973-11-09
1974	1974-01-06	1974-12-07
1975	1975-01-26	1975-12-17
1976	1976-01-14	1976-11-01
1977	1977-02-19	1977-12-31
1978	1978-01-01	1978-12-21
1979	1979-01-05	1979-12-28
1980	1980-01-08	1980-12-29
1981	1981-01-02	1981-12-20
1982	1982-01-09	1982-11-22
1983	1983-03-08	1983-12-26
1985	1985-01-25	1985-12-31
1986	1986-01-01	1986-12-15
1987	1987-01-26	1987-12-22
1988	1988-01-04	1988-12-25
1989	1989-01-05	1989-11-23
1990	1990-01-21	1990-12-31
1991	1991-01-01	1991-12-18
1993	1993-01-20	1993-12-11
1994	1994-01-04	1994-12-21
1996	1996-01-07	1996-12-19
1997	1997-01-05	1997-12-31
1998	1998-01-10	1998-12-30
1999	1999-01-09	1999-12-31
2000	2000-01-02	2000-11-30
2001	2001-01-04	2001-12-23
2002	2002-01-06	2002-12-02
2003	2003-01-21	2003-12-01
2004	2004-02-12	2004-12-10
2005	2005-01-05	2005-12-14

Every Fixed Threshold

Fixed thresholds at Union de Tula
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	57	335	1928	189
35 C (95 F): Days	55	49	1928	17
40 C (104 F): Days	1	2	1998	2
90 F (32.2 C): Days	57	198	1928	85
100 F (37.8 C): Days	20	9	1991	2
0 C (32 F): Frost days (min	12	12	1998	3
20 C (68 F): Tropical nights (min	26	14	1960	2
10 mm (0.39 in): Days with 10 mm or more rain	65	43	1967	17
25 mm (0.98 in): Days with 25 mm or more rain	65	14	1967	5
50 mm (1.97 in): Days with 50 mm or more rain	46	6	1968	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1969	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1928.

Download the Data

Data for Union de Tula 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).

Union de Tula Threshold Days by Year (MXN00014158)

Key Facts for Union de Tula Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related