Oroville Brg Threshold Days by Year (USC00046525)

4 fixed thresholds counted per year at Oroville Brg (USC00046525): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Oroville Brg Thresholds

Oroville Brg: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 1940 with 39.
Oroville Brg: days with 25 mm (0.98 in) or more of precipitation in 65 years, most in 1950 with 16.
Oroville Brg: days with 50 mm (1.97 in) or more of precipitation in 42 years, most in 1937 with 6.
Oroville Brg: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 1913 with 1.
4 fixed thresholds have at least one qualifying day at Oroville Brg.

Days with 10 mm (0.39 in) or more of precipitation

65 years with a qualifying day

Days per year at Oroville Brg with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 1940.

Days with 10 mm (0.39 in) or more of precipitation per year at Oroville Brg
Year	Days	Decade average
1908	16	24.5
1909	33	24.5
1910	12	21.9
1911	22	21.9
1912	17	21.9
1913	23	21.9
1914	32	21.9
1915	30	21.9
1916	26	21.9
1917	15	21.9
1919	20	21.9
1920	30	21.9
1921	22	21.9
1922	23	21.9
1923	15	21.9
1924	21	21.9
1925	17	21.9
1926	26	21.9
1927	27	21.9
1928	21	21.9
1929	17	21.9
1930	14	22
1931	22	22
1932	14	22
1933	19	22
1934	18	22
1935	24	22
1936	31	22
1937	31	22
1938	35	22
1939	12	22
1940	39	25.3
1941	38	25.3
1942	29	25.3
1943	21	25.3
1944	30	25.3
1945	28	25.3
1946	13	25.3
1947	19	25.3
1949	11	25.3
1950	33	24.8
1951	25	24.8
1952	31	24.8
1953	21	24.8
1954	28	24.8
1955	22	24.8
1956	19	24.8
1957	24	24.8
1958	30	24.8
1959	15	24.8
1960	25	23.5
1961	19	23.5
1962	23	23.5
1963	26	23.5
1964	17	23.5
1965	23	23.5
1966	15	23.5
1967	28	23.5
1968	28	23.5
1969	31	23.5
1970	30	24.6
1971	11	24.6
1972	18	24.6
1973	39	24.6
1974	25	24.6

For each year, a bar from the first to the last day at Oroville Brg meeting 10 mm (0.39 in).

First to last qualifying date each year at Oroville Brg
Year	First date	Last date
1908	1908-01-01	1908-12-24
1909	1909-01-01	1909-12-31
1910	1910-01-01	1910-12-11
1911	1911-01-12	1911-12-28
1912	1912-01-01	1912-12-15
1913	1913-01-09	1913-12-31
1914	1914-01-01	1914-12-17
1915	1915-01-04	1915-12-14
1916	1916-01-02	1916-12-28
1917	1917-01-02	1917-12-26
1919	1919-01-16	1919-12-22
1920	1920-02-28	1920-12-30
1921	1921-01-17	1921-12-28
1922	1922-01-02	1922-12-13
1923	1923-01-17	1923-12-13
1924	1924-01-08	1924-12-29
1925	1925-01-25	1925-12-18
1926	1926-01-28	1926-11-28
1927	1927-01-03	1927-12-25
1928	1928-01-01	1928-12-25
1929	1929-01-16	1929-12-16
1930	1930-01-05	1930-11-16
1931	1931-01-01	1931-12-31
1932	1932-01-14	1932-12-23
1933	1933-01-18	1933-12-30
1934	1934-01-01	1934-12-30
1935	1935-01-04	1935-12-29
1936	1936-01-02	1936-12-31
1937	1937-01-11	1937-12-11
1938	1938-01-15	1938-12-20
1939	1939-01-05	1939-12-31
1940	1940-01-01	1940-12-27
1941	1941-01-05	1941-12-29
1942	1942-01-07	1942-12-28
1943	1943-01-20	1943-12-30
1944	1944-01-02	1944-12-23
1945	1945-01-18	1945-12-28
1946	1946-01-03	1946-12-06
1947	1947-01-28	1947-12-17
1949	1949-02-07	1949-12-17
1950	1950-01-08	1950-12-14
1951	1951-01-10	1951-12-28
1952	1952-01-06	1952-12-30
1953	1953-01-06	1953-12-04
1954	1954-01-07	1954-12-31
1955	1955-01-01	1955-12-27
1956	1956-01-05	1956-10-31
1957	1957-01-12	1957-12-18
1958	1958-01-02	1958-12-27
1959	1959-01-05	1959-12-25
1960	1960-01-08	1960-12-17
1961	1961-01-30	1961-12-02
1962	1962-01-20	1962-12-18
1963	1963-01-30	1963-12-20
1964	1964-01-21	1964-12-27
1965	1965-01-03	1965-12-29
1966	1966-01-05	1966-12-06
1967	1967-01-20	1967-12-04
1968	1968-01-10	1968-12-28
1969	1969-01-11	1969-12-25
1970	1970-01-09	1970-12-29
1971	1971-01-02	1971-12-25
1972	1972-01-27	1972-12-28
1973	1973-01-09	1973-12-28
1974	1974-01-12	1974-12-28

Every Fixed Threshold

Fixed thresholds at Oroville Brg
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	65	39	1940	25
25 mm (0.98 in): Days with 25 mm or more rain	65	16	1950	6
50 mm (1.97 in): Days with 50 mm or more rain	42	6	1937	1
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1913	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1908.

Download the Data

Data for Oroville Brg 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).

Oroville Brg Threshold Days by Year (USC00046525)

Key Facts for Oroville Brg Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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