Colby Threshold Days by Year (USC00141696)
20 fixed thresholds counted per year at Colby (USC00141696): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Colby Thresholds
- Colby: nights with a minimum temperature at or below 0 C (32 F) in 64 years, most in 1898 with 179.
- Colby: nights with a minimum temperature at or below -10 C (14 F) in 64 years, most in 1894 with 68.
- Colby: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1923 with 27.
- Colby: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 1939 with 118.
- 20 fixed thresholds have at least one qualifying day at Colby.
Days at or above 30 C (86 F)
63 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1893 | 86 | 87.9 |
| 1894 | 99 | 87.9 |
| 1895 | 72 | 87.9 |
| 1896 | 91 | 87.9 |
| 1897 | 82 | 87.9 |
| 1898 | 84 | 87.9 |
| 1899 | 101 | 87.9 |
| 1900 | 88 | 78.6 |
| 1901 | 93 | 78.6 |
| 1902 | 81 | 78.6 |
| 1903 | 63 | 78.6 |
| 1904 | 72 | 78.6 |
| 1905 | 74 | 78.6 |
| 1906 | 65 | 78.6 |
| 1908 | 81 | 78.6 |
| 1909 | 90 | 78.6 |
| 1910 | 94 | 79.9 |
| 1911 | 109 | 79.9 |
| 1912 | 67 | 79.9 |
| 1913 | 88 | 79.9 |
| 1914 | 87 | 79.9 |
| 1915 | 20 | 79.9 |
| 1916 | 85 | 79.9 |
| 1917 | 78 | 79.9 |
| 1918 | 91 | 79.9 |
| 1919 | 80 | 79.9 |
| 1920 | 75 | 85.1 |
| 1921 | 105 | 85.1 |
| 1922 | 99 | 85.1 |
| 1923 | 59 | 85.1 |
| 1924 | 73 | 85.1 |
| 1925 | 94 | 85.1 |
| 1926 | 100 | 85.1 |
| 1927 | 92 | 85.1 |
| 1928 | 68 | 85.1 |
| 1929 | 86 | 85.1 |
| 1930 | 84 | 101 |
| 1931 | 104 | 101 |
| 1932 | 93 | 101 |
| 1933 | 98 | 101 |
| 1934 | 112 | 101 |
| 1935 | 83 | 101 |
| 1936 | 107 | 101 |
| 1937 | 103 | 101 |
| 1938 | 108 | 101 |
| 1939 | 118 | 101 |
| 1940 | 89 | 85.1 |
| 1941 | 84 | 85.1 |
| 1942 | 82 | 85.1 |
| 1943 | 97 | 85.1 |
| 1944 | 84 | 85.1 |
| 1945 | 83 | 85.1 |
| 1946 | 90 | 85.1 |
| 1947 | 86 | 85.1 |
| 1948 | 90 | 85.1 |
| 1949 | 66 | 85.1 |
| 1950 | 62 | 85 |
| 1951 | 46 | 85 |
| 1952 | 95 | 85 |
| 1953 | 96 | 85 |
| 1954 | 94 | 85 |
| 1955 | 92 | 85 |
| 1956 | 110 | 85 |
| Year | First date | Last date |
|---|---|---|
| 1893 | 1893-04-06 | 1893-10-09 |
| 1894 | 1894-04-28 | 1894-10-06 |
| 1895 | 1895-03-28 | 1895-09-20 |
| 1896 | 1896-04-10 | 1896-10-01 |
| 1897 | 1897-03-07 | 1897-10-14 |
| 1898 | 1898-05-22 | 1898-10-01 |
| 1899 | 1899-04-10 | 1899-10-22 |
| 1900 | 1900-05-11 | 1900-10-15 |
| 1901 | 1901-03-07 | 1901-10-18 |
| 1902 | 1902-04-19 | 1902-10-21 |
| 1903 | 1903-04-23 | 1903-10-19 |
| 1904 | 1904-03-09 | 1904-10-07 |
| 1905 | 1905-05-01 | 1905-10-08 |
| 1906 | 1906-04-23 | 1906-10-12 |
| 1908 | 1908-04-12 | 1908-10-16 |
| 1909 | 1909-04-17 | 1909-10-05 |
| 1910 | 1910-03-19 | 1910-10-16 |
| 1911 | 1911-05-06 | 1911-09-28 |
| 1912 | 1912-05-02 | 1912-10-04 |
| 1913 | 1913-04-06 | 1913-09-08 |
| 1914 | 1914-04-16 | 1914-10-17 |
| 1915 | 1915-04-28 | 1915-10-10 |
| 1916 | 1916-04-11 | 1916-10-07 |
| 1917 | 1917-03-30 | 1917-09-13 |
| 1918 | 1918-05-08 | 1918-10-14 |
| 1919 | 1919-06-07 | 1919-10-01 |
| 1920 | 1920-05-25 | 1920-10-13 |
| 1921 | 1921-03-18 | 1921-10-24 |
| 1922 | 1922-05-05 | 1922-10-26 |
| 1923 | 1923-05-10 | 1923-09-27 |
| 1924 | 1924-04-23 | 1924-10-01 |
| 1925 | 1925-04-21 | 1925-09-29 |
| 1926 | 1926-04-17 | 1926-10-17 |
| 1927 | 1927-04-26 | 1927-11-10 |
| 1928 | 1928-05-01 | 1928-10-10 |
| 1929 | 1929-04-03 | 1929-09-25 |
| 1930 | 1930-04-06 | 1930-09-22 |
| 1931 | 1931-04-07 | 1931-10-19 |
| 1932 | 1932-04-05 | 1932-10-12 |
| 1933 | 1933-05-16 | 1933-10-29 |
| 1934 | 1934-04-29 | 1934-10-07 |
| 1935 | 1935-04-22 | 1935-10-12 |
| 1936 | 1936-04-13 | 1936-10-12 |
| 1937 | 1937-04-22 | 1937-10-29 |
| 1938 | 1938-04-29 | 1938-10-25 |
| 1939 | 1939-04-22 | 1939-10-23 |
| 1940 | 1940-04-01 | 1940-10-25 |
| 1941 | 1941-05-13 | 1941-09-20 |
| 1942 | 1942-04-28 | 1942-10-10 |
| 1943 | 1943-03-29 | 1943-10-28 |
| 1944 | 1944-05-12 | 1944-10-05 |
| 1945 | 1945-04-09 | 1945-10-18 |
| 1946 | 1946-03-31 | 1946-09-26 |
| 1947 | 1947-05-03 | 1947-10-21 |
| 1948 | 1948-04-10 | 1948-09-24 |
| 1949 | 1949-04-24 | 1949-09-25 |
| 1950 | 1950-04-22 | 1950-10-31 |
| 1951 | 1951-04-28 | 1951-10-01 |
| 1952 | 1952-04-07 | 1952-10-03 |
| 1953 | 1953-04-22 | 1953-10-10 |
| 1954 | 1954-04-25 | 1954-10-03 |
| 1955 | 1955-04-26 | 1955-10-19 |
| 1956 | 1956-04-26 | 1956-10-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 63 | 118 | 1939 | 110 |
| 35 C (95 F): Days | 62 | 67 | 1936 | 44 |
| 40 C (104 F): Days | 42 | 27 | 1934 | 1 |
| 45 C (113 F): Days | 1 | 1 | 1940 | 1 |
| 90 F (32.2 C): Days | 63 | 92 | 1911 | 78 |
| 100 F (37.8 C): Days | 62 | 47 | 1936 | 14 |
| 110 F (43.3 C): Days | 5 | 1 | 1934 | 1 |
| 0 C (32 F): Ice days (max | 63 | 42 | 1932 | 24 |
| 0 C (32 F): Frost days (min | 64 | 179 | 1898 | 159 |
| -10 C (14 F): Days with min | 64 | 68 | 1894 | 27 |
| -20 C (-4 F): Days with min | 60 | 16 | 1899 | 1 |
| -30 C (-22 F): Days with min | 8 | 4 | 1899 | 1 |
| 20 C (68 F): Tropical nights (min | 62 | 37 | 1934 | 12 |
| 25 C (77 F): Days with min | 3 | 2 | 1936 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 64 | 27 | 1923 | 5 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 60 | 10 | 1915 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 23 | 3 | 1941 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1941 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 43 | 6 | 1953 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 6 | 2 | 1901 | 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
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 . Last revised (2025-12-31).