San Pedro Threshold Days by Year (MXN00018032)

12 fixed thresholds counted per year at San Pedro (MXN00018032): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Pedro Thresholds

San Pedro: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 1994 with 344.
San Pedro: days with a maximum temperature at or above 35 C (95 F) in 63 years, most in 2007 with 116.
San Pedro: days with a maximum temperature at or above 90 F (32.2 C) in 63 years, most in 2007 with 250.
San Pedro: nights with a minimum temperature at or above 20 C (68 F) in 63 years, most in 1958 with 211.
12 fixed thresholds have at least one qualifying day at San Pedro.

Days at or above 30 C (86 F)

63 years with a qualifying day

Days per year at San Pedro with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 344 in 1994.

Days at or above 30 C (86 F) per year at San Pedro
Year	Days	Decade average
1947	297	298.7
1948	301	298.7
1949	298	298.7
1950	332	315.3
1951	309	315.3
1952	317	315.3
1953	315	315.3
1954	341	315.3
1955	301	315.3
1956	324	315.3
1957	332	315.3
1958	271	315.3
1959	311	315.3
1960	290	291
1961	281	291
1962	292	291
1963	297	291
1964	286	291
1965	298	291
1966	306	291
1967	297	291
1968	278	291
1969	285	291
1970	292	294.7
1971	305	294.7
1972	294	294.7
1973	275	294.7
1974	280	294.7
1975	303	294.7
1976	294	294.7
1977	305	294.7
1978	304	294.7
1980	267	298.4
1981	287	298.4
1982	303	298.4
1983	277	298.4
1984	272	298.4
1986	320	298.4
1987	292	298.4
1988	329	298.4
1989	339	298.4
1990	340	320.7
1991	318	320.7
1992	294	320.7
1993	335	320.7
1994	344	320.7
1995	338	320.7
1996	332	320.7
1997	298	320.7
1998	293	320.7
1999	315	320.7
2000	325	318.4
2001	299	318.4
2003	319	318.4
2004	316	318.4
2005	333	318.4
2006	316	318.4
2007	327	318.4
2008	325	318.4
2009	306	318.4
2010	283	294
2011	307	294
2013	292	294

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

First to last qualifying date each year at San Pedro
Year	First date	Last date
1947	1947-01-05	1947-12-30
1948	1948-01-04	1948-12-31
1949	1949-01-07	1949-12-31
1950	1950-01-01	1950-12-23
1951	1951-01-05	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-03	1953-12-31
1954	1954-01-01	1954-12-26
1955	1955-01-01	1955-12-31
1956	1956-01-01	1956-12-30
1957	1957-01-01	1957-12-30
1958	1958-01-02	1958-12-18
1959	1959-01-06	1959-12-21
1960	1960-01-09	1960-12-25
1961	1961-01-08	1961-12-30
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-28
1964	1964-01-10	1964-12-22
1965	1965-01-03	1965-12-31
1966	1966-01-07	1966-12-31
1967	1967-01-04	1967-12-24
1968	1968-01-01	1968-12-24
1969	1969-01-02	1969-12-27
1970	1970-01-25	1970-12-29
1971	1971-01-10	1971-12-30
1972	1972-01-07	1972-12-31
1973	1973-01-12	1973-12-30
1974	1974-01-06	1974-12-23
1975	1975-01-13	1975-12-23
1976	1976-01-01	1976-12-05
1977	1977-01-07	1977-12-29
1978	1978-01-01	1978-12-20
1980	1980-01-04	1980-12-31
1981	1981-01-01	1981-12-27
1982	1982-01-09	1982-12-24
1983	1983-01-05	1983-12-31
1984	1984-01-01	1984-12-29
1986	1986-01-01	1986-12-22
1987	1987-01-02	1987-12-25
1988	1988-01-01	1988-12-25
1989	1989-01-02	1989-12-31
1990	1990-01-02	1990-12-31
1991	1991-01-01	1991-12-29
1992	1992-02-19	1992-12-31
1993	1993-01-01	1993-12-31
1994	1994-01-01	1994-12-23
1995	1995-01-06	1995-12-28
1996	1996-01-07	1996-12-30
1997	1997-01-01	1997-12-30
1998	1998-01-01	1998-12-30
1999	1999-01-06	1999-12-28
2000	2000-01-11	2000-12-25
2001	2001-01-03	2001-12-31
2003	2003-01-25	2003-12-31
2004	2004-01-01	2004-12-31
2005	2005-01-01	2005-12-29
2006	2006-01-01	2006-12-29
2007	2007-01-01	2007-12-25
2008	2008-02-01	2008-12-31
2009	2009-02-01	2009-12-30
2010	2010-01-01	2010-12-20
2011	2011-02-07	2011-12-28
2013	2013-02-01	2013-12-25

Every Fixed Threshold

Fixed thresholds at San Pedro
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	63	344	1994	292
35 C (95 F): Days	63	116	2007	77
40 C (104 F): Days	10	7	2006	2
90 F (32.2 C): Days	63	250	2007	221
100 F (37.8 C): Days	56	22	2004	2
20 C (68 F): Tropical nights (min	63	211	1958	186
25 C (77 F): Days with min	62	51	1948	15
10 mm (0.39 in): Days with 10 mm or more rain	63	56	1958	38
25 mm (0.98 in): Days with 25 mm or more rain	63	33	1972	21
50 mm (1.97 in): Days with 50 mm or more rain	63	14	1969	9
100 mm (3.94 in): Days with 100 mm or more rain	51	4	1963	2
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1967	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1947.

Download the Data

Data for San Pedro 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 Pedro Threshold Days by Year (MXN00018032)

Key Facts for San Pedro Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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