San Borja Threshold Days by Year (MXN00002044)

13 fixed thresholds counted per year at San Borja (MXN00002044): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Borja Thresholds

San Borja: days with a maximum temperature at or above 30 C (86 F) in 43 years, most in 1963 with 226.
San Borja: days with a maximum temperature at or above 35 C (95 F) in 43 years, most in 1963 with 112.
San Borja: days with a maximum temperature at or above 90 F (32.2 C) in 43 years, most in 1963 with 153.
San Borja: days with a maximum temperature at or above 100 F (37.8 C) in 43 years, most in 1963 with 66.
13 fixed thresholds have at least one qualifying day at San Borja.

Days at or above 30 C (86 F)

43 years with a qualifying day

Days per year at San Borja with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 226 in 1963.

Days at or above 30 C (86 F) per year at San Borja
Year	Days	Decade average
1956	158	146
1957	121	146
1958	156	146
1959	149	146
1960	145	153.4
1961	176	153.4
1962	146	153.4
1963	226	153.4
1965	141	153.4
1966	139	153.4
1967	141	153.4
1968	135	153.4
1969	132	153.4
1970	139	145.3
1972	160	145.3
1973	132	145.3
1975	129	145.3
1976	157	145.3
1977	155	145.3
1980	162	153.7
1981	139	153.7
1982	162	153.7
1983	141	153.7
1984	167	153.7
1985	138	153.7
1989	167	153.7
1992	175	152
1994	184	152
1997	184	152
1998	97	152
1999	120	152
2000	118	116.1
2001	177	116.1
2002	169	116.1
2003	148	116.1
2004	135	116.1
2005	85	116.1
2006	71	116.1
2007	38	116.1
2008	94	116.1
2009	126	116.1
2010	151	154.5
2011	158	154.5

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

First to last qualifying date each year at San Borja
Year	First date	Last date
1956	1956-01-04	1956-11-27
1957	1957-02-08	1957-12-10
1958	1958-02-03	1958-12-18
1959	1959-01-18	1959-12-03
1960	1960-03-03	1960-11-29
1961	1961-02-02	1961-11-08
1962	1962-03-26	1962-12-15
1963	1963-01-31	1963-12-31
1965	1965-01-17	1965-12-06
1966	1966-03-18	1966-12-14
1967	1967-03-02	1967-11-20
1968	1968-02-17	1968-11-21
1969	1969-01-06	1969-12-20
1970	1970-01-27	1970-12-28
1972	1972-03-06	1972-10-17
1973	1973-05-03	1973-12-10
1975	1975-02-27	1975-12-09
1976	1976-01-17	1976-12-24
1977	1977-02-14	1977-12-07
1980	1980-01-13	1980-12-30
1981	1981-01-01	1981-11-19
1982	1982-02-01	1982-12-20
1983	1983-03-06	1983-11-20
1984	1984-02-08	1984-11-11
1985	1985-02-15	1985-12-30
1989	1989-02-10	1989-12-25
1992	1992-04-14	1992-12-13
1994	1994-02-06	1994-11-28
1997	1997-03-10	1997-11-25
1998	1998-01-28	1998-12-03
1999	1999-03-14	1999-11-29
2000	2000-01-15	2000-10-09
2001	2001-02-03	2001-11-21
2002	2002-01-09	2002-11-22
2003	2003-01-06	2003-11-09
2004	2004-02-17	2004-12-14
2005	2005-05-11	2005-11-15
2006	2006-05-19	2006-09-20
2007	2007-05-09	2007-10-25
2008	2008-03-24	2008-11-02
2009	2009-03-01	2009-11-12
2010	2010-03-17	2010-12-14
2011	2011-01-18	2011-11-30

Every Fixed Threshold

Fixed thresholds at San Borja
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	43	226	1963	158
35 C (95 F): Days	43	112	1963	67
40 C (104 F): Days	39	32	1963	7
45 C (113 F): Days	10	3	2006	1
90 F (32.2 C): Days	43	153	1963	112
100 F (37.8 C): Days	43	66	1963	25
110 F (43.3 C): Days	16	7	1963	2
0 C (32 F): Frost days (min	11	18	1956	2
20 C (68 F): Tropical nights (min	42	111	1963	54
25 C (77 F): Days with min	31	27	1963	6
10 mm (0.39 in): Days with 10 mm or more rain	41	11	1983	2
25 mm (0.98 in): Days with 25 mm or more rain	28	4	1983	2
50 mm (1.97 in): Days with 50 mm or more rain	7	1	1965	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

Download the Data

Data for San Borja 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).

San Borja Threshold Days by Year (MXN00002044)

Key Facts for San Borja Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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