Colfax Threshold Days by Year (USC00451586)

17 fixed thresholds counted per year at Colfax (USC00451586): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Colfax Thresholds

Colfax: days with a maximum temperature at or above 30 C (86 F) in 89 years, most in 1949 with 72.
Colfax: days with a maximum temperature at or above 90 F (32.2 C) in 89 years, most in 1939 with 48.
Colfax: days with a maximum temperature at or below 0 C (32 F) in 88 years, most in 1985 with 63.
Colfax: nights with a minimum temperature at or below 0 C (32 F) in 88 years, most in 1921 with 229.
17 fixed thresholds have at least one qualifying day at Colfax.

Days at or above 30 C (86 F)

89 years with a qualifying day

Days per year at Colfax with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 72 in 1949.

Days at or above 30 C (86 F) per year at Colfax
Year	Days	Decade average
1893	13	22
1894	22	22
1895	16	22
1896	31	22
1897	25	22
1898	25	22
1900	37	34.3
1901	51	34.3
1902	26	34.3
1903	33	34.3
1908	42	34.3
1909	17	34.3
1912	38	40.8
1913	33	40.8
1914	53	40.8
1915	49	40.8
1916	23	40.8
1917	43	40.8
1918	48	40.8
1919	39	40.8
1920	42	37.4
1921	35	37.4
1923	52	37.4
1926	37	37.4
1927	32	37.4
1928	32	37.4
1929	32	37.4
1930	39	49.2
1931	45	49.2
1932	32	49.2
1933	40	49.2
1934	60	49.2
1935	41	49.2
1936	60	49.2
1937	50	49.2
1938	65	49.2
1939	60	49.2
1940	58	48.4
1941	43	48.4
1942	51	48.4
1943	54	48.4
1944	45	48.4
1945	54	48.4
1946	38	48.4
1947	30	48.4
1948	39	48.4
1949	72	48.4
1950	67	48.3
1951	49	48.3
1952	61	48.3
1953	44	48.3
1954	29	48.3
1955	52	48.3
1956	55	48.3
1957	30	48.3
1958	66	48.3
1959	30	48.3
1960	34	36.7
1961	57	36.7
1962	26	36.7
1963	37	36.7
1964	18	36.7
1965	25	36.7
1966	33	36.7
1967	51	36.7
1968	37	36.7
1969	49	36.7
1970	48	36.8
1971	42	36.8
1972	35	36.8
1973	43	36.8
1974	37	36.8
1975	27	36.8
1976	23	36.8
1977	40	36.8
1978	32	36.8
1979	41	36.8
1980	25	37.7
1981	41	37.7
1982	39	37.7
1983	33	37.7
1984	39	37.7
1985	42	37.7
1986	49	37.7
1987	45	37.7
1988	38	37.7
1989	26	37.7
1990	47	30
1993	13	30

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

First to last qualifying date each year at Colfax
Year	First date	Last date
1893	1893-07-17	1893-09-04
1894	1894-05-24	1894-08-27
1895	1895-06-23	1895-08-31
1896	1896-06-26	1896-08-29
1897	1897-05-13	1897-09-20
1898	1898-06-08	1898-09-18
1900	1900-04-29	1900-09-12
1901	1901-05-24	1901-10-02
1902	1902-06-08	1902-09-12
1903	1903-05-30	1903-09-27
1908	1908-05-06	1908-09-13
1909	1909-06-01	1909-09-24
1912	1912-05-19	1912-08-26
1913	1913-06-01	1913-09-17
1914	1914-05-14	1914-09-25
1915	1915-06-22	1915-09-18
1916	1916-06-16	1916-09-01
1917	1917-06-14	1917-10-04
1918	1918-06-06	1918-09-29
1919	1919-06-19	1919-09-16
1920	1920-06-21	1920-09-05
1921	1921-06-23	1921-08-31
1923	1923-05-08	1923-09-14
1926	1926-04-29	1926-08-28
1927	1927-06-06	1927-08-23
1928	1928-05-21	1928-09-23
1929	1929-07-01	1929-09-17
1930	1930-07-04	1930-09-12
1931	1931-05-12	1931-09-05
1932	1932-06-11	1932-09-15
1933	1933-05-25	1933-08-28
1934	1934-04-21	1934-10-11
1935	1935-07-12	1935-10-02
1936	1936-04-16	1936-09-21
1937	1937-05-02	1937-09-18
1938	1938-05-26	1938-09-27
1939	1939-04-28	1939-09-23
1940	1940-05-09	1940-09-12
1941	1941-05-11	1941-08-23
1942	1942-05-21	1942-09-21
1943	1943-06-28	1943-10-08
1944	1944-05-27	1944-09-12
1945	1945-06-18	1945-10-14
1946	1946-04-26	1946-09-02
1947	1947-05-06	1947-09-24
1948	1948-05-26	1948-09-15
1949	1949-05-09	1949-09-28
1950	1950-06-20	1950-09-25
1951	1951-05-23	1951-10-11
1952	1952-04-24	1952-10-07
1953	1953-05-06	1953-09-21
1954	1954-05-18	1954-09-14
1955	1955-06-08	1955-09-10
1956	1956-05-17	1956-09-19
1957	1957-05-31	1957-09-27
1958	1958-05-19	1958-09-11
1959	1959-06-20	1959-09-13
1960	1960-06-29	1960-09-13
1961	1961-05-26	1961-08-29
1962	1962-06-25	1962-09-27
1963	1963-06-15	1963-10-03
1964	1964-06-24	1964-08-24
1965	1965-06-11	1965-08-19
1966	1966-05-04	1966-09-23
1967	1967-06-17	1967-09-29
1968	1968-06-19	1968-09-11
1969	1969-05-24	1969-09-13
1970	1970-05-05	1970-09-29
1971	1971-06-22	1971-09-06
1972	1972-05-29	1972-09-05
1973	1973-05-14	1973-09-12
1974	1974-06-12	1974-09-25
1975	1975-05-15	1975-10-03
1976	1976-06-29	1976-09-22
1977	1977-04-24	1977-08-22
1978	1978-06-04	1978-09-27
1979	1979-05-23	1979-09-21
1980	1980-04-29	1980-10-08
1981	1981-05-01	1981-09-19
1982	1982-06-12	1982-09-19
1983	1983-05-25	1983-09-01
1984	1984-05-30	1984-09-19
1985	1985-05-23	1985-08-30
1986	1986-05-26	1986-09-05
1987	1987-04-28	1987-10-03
1988	1988-05-13	1988-09-15
1989	1989-06-13	1989-09-30
1990	1990-06-25	1990-09-25
1993	1993-05-12	1993-09-11

Every Fixed Threshold

Fixed thresholds at Colfax
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	89	72	1949	13
35 C (95 F): Days	85	26	1939	10
40 C (104 F): Days	17	4	1914	1
90 F (32.2 C): Days	89	48	1939	3
100 F (37.8 C): Days	58	11	1915	3
110 F (43.3 C): Days	1	1	1939	1
0 C (32 F): Ice days (max	88	63	1985	41
0 C (32 F): Frost days (min	88	229	1921	132
-10 C (14 F): Days with min	86	53	1916	30
-20 C (-4 F): Days with min	57	18	1929	6
-30 C (-22 F): Days with min	7	4	1929	2
20 C (68 F): Tropical nights (min	12	2	1928	1
10 mm (0.39 in): Days with 10 mm or more rain	81	29	1897	12
25 mm (0.98 in): Days with 25 mm or more rain	57	5	1933	1
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	34	6	1969	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1950	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 Colfax 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).

Colfax Threshold Days by Year (USC00451586)

Key Facts for Colfax Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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