Jonacatepec Threshold Days by Year (MXN00017028)

14 fixed thresholds counted per year at Jonacatepec (MXN00017028): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Jonacatepec Thresholds

Jonacatepec: days with a maximum temperature at or above 30 C (86 F) in 67 years, most in 1951 with 364.
Jonacatepec: days with a maximum temperature at or above 90 F (32.2 C) in 67 years, most in 1951 with 364.
Jonacatepec: days with a maximum temperature at or above 35 C (95 F) in 66 years, most in 1951 with 359.
Jonacatepec: days with 10 mm (0.39 in) or more of precipitation in 66 years, most in 1992 with 47.
14 fixed thresholds have at least one qualifying day at Jonacatepec.

Days at or above 30 C (86 F)

67 years with a qualifying day

Days per year at Jonacatepec with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 364 in 1951.

Days at or above 30 C (86 F) per year at Jonacatepec
Year	Days	Decade average
1927	121	138.7
1928	148	138.7
1929	147	138.7
1930	167	166.9
1931	156	166.9
1932	173	166.9
1933	163	166.9
1934	140	166.9
1935	113	166.9
1936	146	166.9
1937	152	166.9
1938	219	166.9
1939	240	166.9
1940	291	259.9
1941	240	259.9
1942	205	259.9
1943	194	259.9
1944	198	259.9
1945	238	259.9
1946	257	259.9
1947	256	259.9
1948	360	259.9
1949	360	259.9
1950	361	288.1
1951	364	288.1
1953	248	288.1
1954	304	288.1
1955	252	288.1
1956	258	288.1
1957	313	288.1
1958	243	288.1
1959	250	288.1
1960	297	289.4
1961	297	289.4
1962	240	289.4
1963	261	289.4
1964	308	289.4
1965	290	289.4
1966	272	289.4
1967	316	289.4
1968	324	289.4
1986	176	173
1987	208	173
1988	155	173
1989	153	173
1990	114	172.4
1991	272	172.4
1992	224	172.4
1993	201	172.4
1994	285	172.4
1995	173	172.4
1996	84	172.4
1997	103	172.4
1998	146	172.4
1999	122	172.4
2000	184	162.1
2001	209	162.1
2002	242	162.1
2003	175	162.1
2004	99	162.1
2005	167	162.1
2006	133	162.1
2007	122	162.1
2008	117	162.1
2009	173	162.1
2010	180	242
2011	304	242

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

First to last qualifying date each year at Jonacatepec
Year	First date	Last date
1927	1927-02-10	1927-12-31
1928	1928-01-16	1928-11-30
1929	1929-01-20	1929-12-09
1930	1930-01-27	1930-12-26
1931	1931-01-08	1931-12-24
1932	1932-01-24	1932-12-26
1933	1933-01-16	1933-12-06
1934	1934-01-23	1934-12-31
1935	1935-02-26	1935-12-10
1936	1936-01-04	1936-12-31
1937	1937-01-01	1937-11-16
1938	1938-01-14	1938-12-24
1939	1939-01-05	1939-12-21
1940	1940-01-10	1940-12-29
1941	1941-01-01	1941-12-16
1942	1942-01-05	1942-12-26
1943	1943-01-04	1943-12-16
1944	1944-01-28	1944-12-01
1945	1945-01-04	1945-12-23
1946	1946-01-26	1946-12-31
1947	1947-01-08	1947-12-21
1948	1948-01-01	1948-12-31
1949	1949-01-01	1949-12-31
1950	1950-01-01	1950-12-31
1951	1951-01-01	1951-12-31
1953	1953-02-12	1953-12-30
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-26
1956	1956-01-19	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-26
1959	1959-01-05	1959-12-27
1960	1960-01-01	1960-12-31
1961	1961-01-01	1961-12-31
1962	1962-01-03	1962-12-30
1963	1963-01-23	1963-12-22
1964	1964-01-19	1964-12-31
1965	1965-01-01	1965-12-27
1966	1966-01-01	1966-12-30
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1986	1986-02-01	1986-12-31
1987	1987-01-01	1987-12-24
1988	1988-01-03	1988-12-15
1989	1989-01-06	1989-12-31
1990	1990-01-01	1990-12-31
1991	1991-01-01	1991-12-01
1992	1992-01-01	1992-12-24
1993	1993-01-18	1993-10-28
1994	1994-02-19	1994-12-31
1995	1995-01-01	1995-12-31
1996	1996-01-02	1996-12-31
1997	1997-03-03	1997-12-09
1998	1998-02-16	1998-10-15
1999	1999-01-31	1999-09-27
2000	2000-02-15	2000-12-20
2001	2001-01-08	2001-12-15
2002	2002-01-11	2002-12-31
2003	2003-01-02	2003-12-11
2004	2004-01-06	2004-12-01
2005	2005-01-03	2005-12-15
2006	2006-01-03	2006-11-06
2007	2007-01-04	2007-11-15
2008	2008-01-23	2008-09-23
2009	2009-02-19	2009-12-31
2010	2010-01-19	2010-12-21
2011	2011-01-11	2011-12-31

Every Fixed Threshold

Fixed thresholds at Jonacatepec
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	67	364	1951	304
35 C (95 F): Days	66	359	1951	89
40 C (104 F): Days	13	136	1951	2
45 C (113 F): Days	1	9	1951	9
90 F (32.2 C): Days	67	364	1951	143
100 F (37.8 C): Days	34	274	1951	23
110 F (43.3 C): Days	1	36	1951	36
0 C (32 F): Frost days (min	4	4	1943	3
20 C (68 F): Tropical nights (min	37	176	1953	1
25 C (77 F): Days with min	1	15	1953	15
10 mm (0.39 in): Days with 10 mm or more rain	66	47	1992	26
25 mm (0.98 in): Days with 25 mm or more rain	66	16	1945	10
50 mm (1.97 in): Days with 50 mm or more rain	47	5	1998	2
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1927.

Download the Data

Data for Jonacatepec 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).

Jonacatepec Threshold Days by Year (MXN00017028)

Key Facts for Jonacatepec Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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