Colusa Brg Threshold Days by Year

14 fixed thresholds counted per year at Colusa Brg (USC00041945): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Colusa Brg Thresholds

Colusa Brg: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1929 with 47.
Colusa Brg: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1940 with 29.
Colusa Brg: days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 1924 with 133.
Colusa Brg: days with a maximum temperature at or above 35 C (95 F) in 32 years, most in 1939 with 76.
14 fixed thresholds have at least one qualifying day at Colusa Brg.

Days at or above 30 C (86 F)

32 years with a qualifying day

Days per year at Colusa Brg with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 133 in 1924.

Days at or above 30 C (86 F) per year at Colusa Brg
Year	Days	Decade average
1905	92	92
1912	76	79.3
1914	75	79.3
1915	87	79.3
1920	100	110.8
1921	111	110.8
1922	123	110.8
1923	112	110.8
1924	133	110.8
1925	87	110.8
1926	110	110.8
1927	94	110.8
1928	125	110.8
1929	113	110.8
1930	102	116.5
1931	120	116.5
1932	132	116.5
1933	120	116.5
1934	129	116.5
1935	121	116.5
1936	116	116.5
1937	114	116.5
1938	80	116.5
1939	131	116.5
1940	112	113.9
1941	89	113.9
1942	107	113.9
1943	113	113.9
1944	116	113.9
1945	126	113.9
1946	121	113.9
1947	127	113.9

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

First to last qualifying date each year at Colusa Brg
Year	First date	Last date
1905	1905-05-15	1905-10-04
1912	1912-05-12	1912-09-21
1914	1914-05-29	1914-09-26
1915	1915-05-27	1915-10-04
1920	1920-04-26	1920-09-29
1921	1921-04-21	1921-10-09
1922	1922-04-23	1922-09-30
1923	1923-03-27	1923-10-02
1924	1924-04-07	1924-10-04
1925	1925-04-29	1925-09-23
1926	1926-03-22	1926-09-10
1927	1927-04-23	1927-09-20
1928	1928-04-29	1928-10-09
1929	1929-04-26	1929-10-22
1930	1930-05-18	1930-10-06
1931	1931-04-16	1931-10-01
1932	1932-05-08	1932-10-05
1933	1933-04-02	1933-10-16
1934	1934-04-06	1934-10-11
1935	1935-04-25	1935-10-07
1936	1936-04-11	1936-11-18
1937	1937-05-02	1937-09-27
1938	1938-05-11	1938-09-22
1939	1939-04-05	1939-10-29
1940	1940-04-13	1940-10-18
1941	1941-04-24	1941-10-17
1942	1942-05-19	1942-10-22
1943	1943-04-14	1943-10-16
1944	1944-05-03	1944-10-28
1945	1945-04-16	1945-10-15
1946	1946-04-23	1946-10-14
1947	1947-04-14	1947-10-06

Every Fixed Threshold

Fixed thresholds at Colusa Brg
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	32	133	1924	127
35 C (95 F): Days	32	76	1939	75
40 C (104 F): Days	31	27	1933	4
45 C (113 F): Days	1	1	1933	1
90 F (32.2 C): Days	32	115	1947	115
100 F (37.8 C): Days	32	46	1932	30
110 F (43.3 C): Days	8	7	1933	1
0 C (32 F): Frost days (min	33	47	1929	41
-10 C (14 F): Days with min	1	1	1932	1
20 C (68 F): Tropical nights (min	30	9	1945	5
25 C (77 F): Days with min	3	2	1931	1
10 mm (0.39 in): Days with 10 mm or more rain	33	29	1940	13
25 mm (0.98 in): Days with 25 mm or more rain	32	8	1937	5
50 mm (1.97 in): Days with 50 mm or more rain	10	2	1935	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1905.

Download the Data

Data for Colusa 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Colusa Brg Threshold Days by Year

Key Facts for Colusa Brg Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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