Stockton Fire STN 4 Threshold Days by Year (USC00048560)

13 fixed thresholds counted per year at Stockton Fire STN 4 (USC00048560): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Stockton Fire STN 4 Thresholds

Stockton Fire STN 4: days with 10 mm (0.39 in) or more of precipitation in 80 years, most in 1982 with 28.
Stockton Fire STN 4: days with a maximum temperature at or above 30 C (86 F) in 77 years, most in 1992 with 132.
Stockton Fire STN 4: days with a maximum temperature at or above 35 C (95 F) in 77 years, most in 1984 with 62.
Stockton Fire STN 4: days with a maximum temperature at or above 90 F (32.2 C) in 77 years, most in 1992 with 99.
13 fixed thresholds have at least one qualifying day at Stockton Fire STN 4.

Days at or above 30 C (86 F)

77 years with a qualifying day

Days per year at Stockton Fire STN 4 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 132 in 1992.

Days at or above 30 C (86 F) per year at Stockton Fire STN 4
Year	Days	Decade average
1926	121	100.5
1927	94	100.5
1928	106	100.5
1929	81	100.5
1930	53	98.6
1931	113	98.6
1932	100	98.6
1933	95	98.6
1934	104	98.6
1935	92	98.6
1936	110	98.6
1937	101	98.6
1938	101	98.6
1939	117	98.6
1940	109	100.3
1941	77	100.3
1942	103	100.3
1943	100	100.3
1944	113	100.3
1945	110	100.3
1946	106	100.3
1947	118	100.3
1948	67	100.3
1949	100	100.3
1950	97	89.5
1951	83	89.5
1952	93	89.5
1953	79	89.5
1954	80	89.5
1955	90	89.5
1956	88	89.5
1957	91	89.5
1958	93	89.5
1959	101	89.5
1960	110	94.8
1961	96	94.8
1962	97	94.8
1963	82	94.8
1964	94	94.8
1965	85	94.8
1966	101	94.8
1967	103	94.8
1968	78	94.8
1969	102	94.8
1970	111	103
1971	104	103
1972	103	103
1973	94	103
1974	118	103
1975	95	103
1976	93	103
1977	101	103
1978	103	103
1979	108	103
1980	85	99.1
1981	125	99.1
1982	85	99.1
1983	100	99.1
1984	121	99.1
1985	85	99.1
1986	89	99.1
1988	111	99.1
1989	91	99.1
1990	119	112.1
1991	120	112.1
1992	132	112.1
1993	112	112.1
1995	103	112.1
1997	128	112.1
1998	80	112.1
1999	103	112.1
2000	104	119.3
2003	129	119.3
2004	129	119.3
2005	110	119.3
2006	131	119.3
2009	113	119.3

For each year, a bar from the first to the last day at Stockton Fire STN 4 meeting 30 C (86 F).

First to last qualifying date each year at Stockton Fire STN 4
Year	First date	Last date
1926	1926-04-16	1926-10-19
1927	1927-04-25	1927-10-23
1928	1928-04-29	1928-10-19
1929	1929-05-11	1929-10-23
1930	1930-05-19	1930-10-18
1931	1931-04-06	1931-10-02
1932	1932-05-09	1932-10-28
1933	1933-04-14	1933-10-24
1934	1934-04-06	1934-10-10
1935	1935-05-05	1935-10-01
1936	1936-04-11	1936-10-15
1937	1937-05-12	1937-10-22
1938	1938-04-18	1938-10-25
1939	1939-04-07	1939-10-30
1940	1940-04-13	1940-10-20
1941	1941-05-09	1941-10-17
1942	1942-05-20	1942-10-23
1943	1943-05-10	1943-10-16
1944	1944-05-03	1944-10-28
1945	1945-04-19	1945-10-06
1946	1946-03-10	1946-10-13
1947	1947-04-12	1947-10-04
1948	1948-05-05	1948-09-16
1949	1949-04-22	1949-10-05
1950	1950-04-20	1950-11-05
1951	1951-04-11	1951-10-10
1952	1952-05-17	1952-10-06
1953	1953-05-05	1953-10-09
1954	1954-04-17	1954-10-16
1955	1955-05-12	1955-10-14
1956	1956-05-16	1956-10-02
1957	1957-04-06	1957-09-27
1958	1958-05-16	1958-10-17
1959	1959-04-30	1959-10-26
1960	1960-05-11	1960-10-06
1961	1961-04-17	1961-10-19
1962	1962-04-11	1962-10-02
1963	1963-05-17	1963-10-02
1964	1964-04-15	1964-10-21
1965	1965-04-26	1965-10-26
1966	1966-04-01	1966-10-11
1967	1967-05-16	1967-10-12
1968	1968-04-27	1968-10-26
1969	1969-05-06	1969-10-02
1970	1970-05-02	1970-10-12
1971	1971-05-23	1971-10-14
1972	1972-03-17	1972-10-08
1973	1973-04-25	1973-10-17
1974	1974-05-08	1974-10-19
1975	1975-05-13	1975-10-06
1976	1976-05-08	1976-10-15
1977	1977-04-13	1977-10-17
1978	1978-05-03	1978-10-15
1979	1979-05-12	1979-10-11
1980	1980-04-17	1980-10-24
1981	1981-04-24	1981-10-03
1982	1982-05-04	1982-10-15
1983	1983-05-18	1983-10-27
1984	1984-04-15	1984-10-08
1985	1985-04-06	1985-10-06
1986	1986-04-21	1986-10-09
1988	1988-03-27	1988-10-21
1989	1989-04-06	1989-10-22
1990	1990-04-13	1990-10-28
1991	1991-04-14	1991-10-22
1992	1992-04-05	1992-10-13
1993	1993-05-01	1993-11-07
1995	1995-04-25	1995-10-21
1997	1997-04-16	1997-10-19
1998	1998-06-15	1998-10-07
1999	1999-04-16	1999-10-22
2000	2000-04-02	2000-10-08
2003	2003-05-13	2003-10-29
2004	2004-03-19	2004-10-14
2005	2005-05-14	2005-10-18
2006	2006-04-28	2006-10-25
2009	2009-04-18	2009-10-02

Every Fixed Threshold

Fixed thresholds at Stockton Fire STN 4
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	77	132	1992	113
35 C (95 F): Days	77	62	1984	58
40 C (104 F): Days	65	13	2006	13
90 F (32.2 C): Days	77	99	1992	89
100 F (37.8 C): Days	76	31	2009	31
110 F (43.3 C): Days	8	5	2006	1
0 C (32 F): Ice days (max	2	1	1928	1
0 C (32 F): Frost days (min	71	65	1929	24
20 C (68 F): Tropical nights (min	41	8	1960	8
25 C (77 F): Days with min	2	2	1999	2
10 mm (0.39 in): Days with 10 mm or more rain	80	28	1982	10
25 mm (0.98 in): Days with 25 mm or more rain	72	8	1982	4
50 mm (1.97 in): Days with 50 mm or more rain	11	1	1955	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

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Data for Stockton Fire STN 4 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).

Stockton Fire STN 4 Threshold Days by Year (USC00048560)

Key Facts for Stockton Fire STN 4 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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