Stockton 2 Threshold Days by Year (USC00048557)

12 fixed thresholds counted per year at Stockton 2 (USC00048557): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Stockton 2 Thresholds

Stockton 2: days with a maximum temperature at or above 30 C (86 F) in 52 years, most in 1931 with 117.
Stockton 2: days with a maximum temperature at or above 90 F (32.2 C) in 52 years, most in 1936 with 85.
Stockton 2: nights with a minimum temperature at or below 0 C (32 F) in 52 years, most in 1898 with 49.
Stockton 2: days with a maximum temperature at or above 35 C (95 F) in 51 years, most in 1936 with 51.
12 fixed thresholds have at least one qualifying day at Stockton 2.

Days at or above 30 C (86 F)

52 years with a qualifying day

Days per year at Stockton 2 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 117 in 1931.

Days at or above 30 C (86 F) per year at Stockton 2
Year	Days	Decade average
1893	59	64.4
1894	66	64.4
1895	59	64.4
1896	59	64.4
1897	68	64.4
1898	74	64.4
1899	66	64.4
1900	51	59
1901	52	59
1902	59	59
1903	61	59
1904	65	59
1905	58	59
1906	72	59
1907	40	59
1908	64	59
1909	68	59
1910	70	69.6
1911	58	69.6
1912	58	69.6
1913	81	69.6
1914	64	69.6
1915	79	69.6
1916	66	69.6
1917	88	69.6
1918	73	69.6
1919	59	69.6
1920	72	83.6
1921	82	83.6
1922	88	83.6
1923	65	83.6
1924	81	83.6
1925	54	83.6
1926	111	83.6
1927	89	83.6
1928	110	83.6
1930	58	98.4
1931	117	98.4
1932	104	98.4
1933	99	98.4
1934	106	98.4
1935	102	98.4
1936	112	98.4
1937	96	98.4
1938	92	98.4
1940	85	85.6
1941	74	85.6
1943	66	85.6
1944	82	85.6
1945	98	85.6
1946	82	85.6
1947	112	85.6

For each year, a bar from the first to the last day at Stockton 2 meeting 30 C (86 F).

First to last qualifying date each year at Stockton 2
Year	First date	Last date
1893	1893-05-11	1893-08-28
1894	1894-05-05	1894-10-05
1895	1895-05-10	1895-10-11
1896	1896-05-25	1896-10-06
1897	1897-05-09	1897-09-24
1898	1898-04-12	1898-09-18
1899	1899-05-09	1899-10-09
1900	1900-05-19	1900-09-23
1901	1901-06-01	1901-10-13
1902	1902-06-07	1902-09-22
1903	1903-05-28	1903-10-19
1904	1904-05-08	1904-09-13
1905	1905-05-15	1905-10-04
1906	1906-04-20	1906-10-08
1907	1907-05-26	1907-08-20
1908	1908-04-11	1908-09-30
1909	1909-05-30	1909-09-22
1910	1910-04-23	1910-10-09
1911	1911-05-20	1911-10-18
1912	1912-05-06	1912-09-22
1913	1913-04-24	1913-10-20
1914	1914-05-28	1914-09-29
1915	1915-05-26	1915-10-06
1916	1916-05-01	1916-09-29
1917	1917-05-31	1917-10-07
1918	1918-04-21	1918-09-02
1919	1919-05-26	1919-09-25
1920	1920-05-15	1920-09-29
1921	1921-04-27	1921-10-20
1922	1922-05-05	1922-09-25
1923	1923-05-08	1923-09-30
1924	1924-04-06	1924-10-03
1925	1925-05-02	1925-08-28
1926	1926-04-15	1926-10-18
1927	1927-04-24	1927-10-24
1928	1928-05-04	1928-10-19
1930	1930-03-28	1930-10-06
1931	1931-04-07	1931-11-01
1932	1932-04-11	1932-10-05
1933	1933-04-02	1933-10-07
1934	1934-04-06	1934-10-10
1935	1935-05-05	1935-09-30
1936	1936-04-09	1936-10-17
1937	1937-05-01	1937-09-26
1938	1938-04-18	1938-09-17
1940	1940-04-13	1940-09-06
1941	1941-05-09	1941-10-15
1943	1943-05-09	1943-10-03
1944	1944-05-02	1944-09-27
1945	1945-04-16	1945-10-04
1946	1946-04-23	1946-09-30
1947	1947-04-13	1947-10-06

Every Fixed Threshold

Fixed thresholds at Stockton 2
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	52	117	1931	112
35 C (95 F): Days	51	51	1936	23
40 C (104 F): Days	18	6	1905	2
90 F (32.2 C): Days	52	85	1936	76
100 F (37.8 C): Days	49	21	1931	3
110 F (43.3 C): Days	1	1	1905	1
0 C (32 F): Frost days (min	52	49	1898	18
20 C (68 F): Tropical nights (min	45	13	1913	3
25 C (77 F): Days with min	3	1	1908	1
10 mm (0.39 in): Days with 10 mm or more rain	39	23	1906	8
25 mm (0.98 in): Days with 25 mm or more rain	34	6	1899	1
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1906	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

Data for Stockton 2 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 2 Threshold Days by Year (USC00048557)

Key Facts for Stockton 2 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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