Francisco Castellanos Threshold Days by Year (MXN00028033)

14 fixed thresholds counted per year at Francisco Castellanos (MXN00028033): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Francisco Castellanos Thresholds

Francisco Castellanos: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1973 with 40.
Francisco Castellanos: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1973 with 18.
Francisco Castellanos: nights with a minimum temperature at or above 20 C (68 F) in 42 years, most in 1982 with 184.
Francisco Castellanos: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1964 with 300.
14 fixed thresholds have at least one qualifying day at Francisco Castellanos.

Days at or above 30 C (86 F)

41 years with a qualifying day

Days per year at Francisco Castellanos with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 300 in 1964.

Days at or above 30 C (86 F) per year at Francisco Castellanos
Year	Days	Decade average
1964	300	198.5
1967	164	198.5
1968	158	198.5
1969	172	198.5
1970	148	172.2
1971	162	172.2
1972	180	172.2
1973	174	172.2
1974	187	172.2
1975	176	172.2
1976	133	172.2
1977	194	172.2
1978	203	172.2
1979	165	172.2
1980	174	196.3
1981	213	196.3
1982	232	196.3
1983	191	196.3
1984	146	196.3
1986	200	196.3
1989	218	196.3
1990	170	205.2
1992	169	205.2
1993	188	205.2
1994	195	205.2
1995	210	205.2
1996	258	205.2
1997	215	205.2
1998	228	205.2
1999	214	205.2
2000	236	236.7
2001	191	236.7
2002	209	236.7
2004	249	236.7
2005	253	236.7
2006	290	236.7
2007	227	236.7
2008	212	236.7
2009	263	236.7
2010	246	257.5
2011	269	257.5

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

First to last qualifying date each year at Francisco Castellanos
Year	First date	Last date
1964	1964-01-03	1964-12-31
1967	1967-01-30	1967-11-26
1968	1968-02-21	1968-12-21
1969	1969-01-23	1969-12-28
1970	1970-03-03	1970-11-13
1971	1971-01-03	1971-11-30
1972	1972-01-13	1972-12-24
1973	1973-03-02	1973-12-31
1974	1974-02-01	1974-12-30
1975	1975-01-02	1975-11-11
1976	1976-02-05	1976-09-26
1977	1977-01-28	1977-12-31
1978	1978-01-05	1978-12-07
1979	1979-01-06	1979-11-09
1980	1980-02-21	1980-11-08
1981	1981-01-28	1981-12-28
1982	1982-01-01	1982-12-24
1983	1983-01-29	1983-12-28
1984	1984-02-16	1984-12-14
1986	1986-02-04	1986-11-19
1989	1989-01-06	1989-12-30
1990	1990-02-02	1990-12-21
1992	1992-02-16	1992-12-18
1993	1993-01-09	1993-12-01
1994	1994-01-27	1994-12-07
1995	1995-01-06	1995-12-05
1996	1996-01-01	1996-12-12
1997	1997-01-05	1997-12-16
1998	1998-01-06	1998-11-25
1999	1999-01-17	1999-12-29
2000	2000-01-03	2000-11-16
2001	2001-02-16	2001-11-08
2002	2002-01-24	2002-11-11
2004	2004-01-05	2004-12-30
2005	2005-01-11	2005-12-31
2006	2006-01-02	2006-12-30
2007	2007-02-06	2007-12-21
2008	2008-01-04	2008-12-26
2009	2009-01-01	2009-12-15
2010	2010-01-18	2010-12-31
2011	2011-01-01	2011-11-24

Every Fixed Threshold

Fixed thresholds at Francisco Castellanos
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	41	300	1964	269
35 C (95 F): Days	41	203	2006	162
40 C (104 F): Days	33	76	2006	42
45 C (113 F): Days	14	14	2006	2
90 F (32.2 C): Days	41	241	1964	205
100 F (37.8 C): Days	41	129	2006	87
110 F (43.3 C): Days	18	18	2006	5
0 C (32 F): Frost days (min	13	5	1989	3
20 C (68 F): Tropical nights (min	42	184	1982	105
25 C (77 F): Days with min	40	24	1995	3
10 mm (0.39 in): Days with 10 mm or more rain	44	40	1973	10
25 mm (0.98 in): Days with 25 mm or more rain	44	18	1973	4
50 mm (1.97 in): Days with 50 mm or more rain	32	6	1973	1
100 mm (3.94 in): Days with 100 mm or more rain	7	2	1970	1

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

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Data for Francisco Castellanos 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).

Francisco Castellanos Threshold Days by Year (MXN00028033)

Key Facts for Francisco Castellanos Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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