San Joaquin Threshold Days by Year (MXN00025172)

15 fixed thresholds counted per year at San Joaquin (MXN00025172): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Joaquin Thresholds

San Joaquin: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1984 with 32.
San Joaquin: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1990 with 19.
San Joaquin: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1990 with 10.
San Joaquin: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 1995 with 340.
15 fixed thresholds have at least one qualifying day at San Joaquin.

Days at or above 30 C (86 F)

26 years with a qualifying day

Days per year at San Joaquin with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 340 in 1995.

Days at or above 30 C (86 F) per year at San Joaquin
Year	Days	Decade average
1979	289	289
1980	321	303
1981	262	303
1982	307	303
1983	298	303
1984	307	303
1985	304	303
1986	322	303
1990	302	311.6
1991	273	311.6
1992	286	311.6
1993	316	311.6
1995	340	311.6
1997	319	311.6
1998	324	311.6
1999	333	311.6
2000	324	314.9
2001	299	314.9
2002	333	314.9
2003	331	314.9
2004	270	314.9
2005	329	314.9
2006	334	314.9
2007	299	314.9
2010	304	307.5
2011	311	307.5

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

First to last qualifying date each year at San Joaquin
Year	First date	Last date
1979	1979-01-04	1979-12-31
1980	1980-01-01	1980-12-31
1981	1981-01-01	1981-12-31
1982	1982-01-01	1982-12-21
1983	1983-01-05	1983-12-31
1984	1984-01-01	1984-12-25
1985	1985-01-05	1985-12-31
1986	1986-01-01	1986-12-18
1990	1990-01-09	1990-12-31
1991	1991-01-04	1991-12-10
1992	1992-02-18	1992-12-31
1993	1993-01-02	1993-12-31
1995	1995-01-07	1995-12-31
1997	1997-01-01	1997-12-31
1998	1998-01-02	1998-12-31
1999	1999-01-04	1999-12-15
2000	2000-01-10	2000-12-30
2001	2001-01-04	2001-12-31
2002	2002-01-01	2002-12-31
2003	2003-01-02	2003-12-26
2004	2004-01-01	2004-12-31
2005	2005-01-01	2005-12-31
2006	2006-01-01	2006-12-26
2007	2007-01-01	2007-11-29
2010	2010-01-01	2010-12-27
2011	2011-01-04	2011-12-31

Every Fixed Threshold

Fixed thresholds at San Joaquin
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	26	340	1995	311
35 C (95 F): Days	26	253	2006	233
40 C (104 F): Days	26	110	1997	9
45 C (113 F): Days	8	12	1982	12
90 F (32.2 C): Days	26	307	1995	267
100 F (37.8 C): Days	26	173	1997	95
110 F (43.3 C): Days	18	32	2007	32
0 C (32 F): Frost days (min	3	1	1998	1
20 C (68 F): Tropical nights (min	26	144	1983	141
25 C (77 F): Days with min	25	59	2011	59
10 mm (0.39 in): Days with 10 mm or more rain	27	32	1984	15
25 mm (0.98 in): Days with 25 mm or more rain	27	19	1990	5
50 mm (1.97 in): Days with 50 mm or more rain	27	10	1990	1
100 mm (3.94 in): Days with 100 mm or more rain	9	2	1990	2
200 mm (7.87 in): Days with 200 mm or more rain	2	1	1982	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1979.

Download the Data

Data for San Joaquin 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 Joaquin Threshold Days by Year (MXN00025172)

Key Facts for San Joaquin Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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