Portaceli Threshold Days by Year

11 fixed thresholds counted per year at Portaceli (MXN00007132): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Portaceli Thresholds

Portaceli: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1995 with 60.
Portaceli: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1995 with 33.
Portaceli: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1975 with 311.
Portaceli: days with a maximum temperature at or above 90 F (32.2 C) in 41 years, most in 2001 with 220.
11 fixed thresholds have at least one qualifying day at Portaceli.

Days at or above 30 C (86 F)

41 years with a qualifying day

Days per year at Portaceli with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 311 in 1975.

Days at or above 30 C (86 F) per year at Portaceli
Year	Days	Decade average
1962	169	189.1
1963	175	189.1
1964	186	189.1
1965	190	189.1
1966	184	189.1
1967	202	189.1
1968	197	189.1
1969	210	189.1
1970	192	227.4
1971	172	227.4
1972	188	227.4
1973	156	227.4
1974	271	227.4
1975	311	227.4
1976	237	227.4
1977	257	227.4
1978	263	227.4
1982	242	165.4
1983	13	165.4
1984	114	165.4
1985	169	165.4
1986	201	165.4
1987	222	165.4
1988	192	165.4
1989	170	165.4
1990	214	212.6
1991	205	212.6
1992	219	212.6
1993	202	212.6
1994	230	212.6
1995	189	212.6
1996	197	212.6
1999	245	212.6
2000	269	238
2001	301	238
2002	284	238
2003	175	238
2004	247	238
2006	199	238
2007	191	238
2008	238	238

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

First to last qualifying date each year at Portaceli
Year	First date	Last date
1962	1962-01-14	1962-12-28
1963	1963-01-11	1963-11-28
1964	1964-01-07	1964-12-28
1965	1965-01-09	1965-12-24
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-03	1969-12-30
1970	1970-01-02	1970-12-30
1971	1971-01-02	1971-12-30
1972	1972-01-01	1972-12-31
1973	1973-01-02	1973-12-29
1974	1974-01-07	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-02	1976-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-31
1982	1982-01-01	1982-12-18
1983	1983-04-01	1983-12-21
1984	1984-01-18	1984-12-29
1985	1985-01-05	1985-12-31
1986	1986-01-07	1986-12-31
1987	1987-01-13	1987-12-26
1988	1988-01-01	1988-12-31
1989	1989-01-01	1989-12-31
1990	1990-01-04	1990-12-31
1991	1991-01-08	1991-12-23
1992	1992-01-05	1992-12-29
1993	1993-01-03	1993-12-20
1994	1994-01-08	1994-12-31
1995	1995-01-06	1995-12-27
1996	1996-01-06	1996-12-31
1999	1999-01-01	1999-12-22
2000	2000-01-02	2000-12-28
2001	2001-01-07	2001-12-26
2002	2002-01-01	2002-11-30
2003	2003-01-01	2003-12-29
2004	2004-01-04	2004-12-26
2006	2006-01-01	2006-12-31
2007	2007-01-05	2007-12-30
2008	2008-01-02	2008-12-27

Every Fixed Threshold

Fixed thresholds at Portaceli
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	41	311	1975	238
35 C (95 F): Days	40	107	2002	52
40 C (104 F): Days	6	14	1999	9
90 F (32.2 C): Days	41	220	2001	92
100 F (37.8 C): Days	21	60	2002	11
20 C (68 F): Tropical nights (min	40	130	1991	42
25 C (77 F): Days with min	2	1	1977	1
10 mm (0.39 in): Days with 10 mm or more rain	43	60	1995	25
25 mm (0.98 in): Days with 25 mm or more rain	43	33	1995	10
50 mm (1.97 in): Days with 50 mm or more rain	41	7	1965	2
100 mm (3.94 in): Days with 100 mm or more rain	4	2	1988	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 Portaceli 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).

Portaceli Threshold Days by Year

Key Facts for Portaceli Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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