Colton (Boola Boola) Threshold Days by Year (ASN00018016)
3 fixed thresholds counted per year at Colton (Boola Boola) (ASN00018016): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Colton (Boola Boola) Thresholds
- Colton (Boola Boola): days with 10 mm (0.39 in) or more of precipitation in 58 years, most in 1920 with 18.
- Colton (Boola Boola): days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1901 with 5.
- Colton (Boola Boola): days with 50 mm (1.97 in) or more of precipitation in 4 years, most in 1900 with 1.
- 3 fixed thresholds have at least one qualifying day at Colton (Boola Boola).
Days with 10 mm (0.39 in) or more of precipitation
58 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1893 | 11 | 10.4 |
| 1894 | 12 | 10.4 |
| 1895 | 10 | 10.4 |
| 1896 | 14 | 10.4 |
| 1897 | 10 | 10.4 |
| 1898 | 7 | 10.4 |
| 1899 | 9 | 10.4 |
| 1900 | 9 | 8.8 |
| 1901 | 14 | 8.8 |
| 1902 | 6 | 8.8 |
| 1904 | 7 | 8.8 |
| 1905 | 10 | 8.8 |
| 1906 | 10 | 8.8 |
| 1907 | 7 | 8.8 |
| 1908 | 8 | 8.8 |
| 1909 | 8 | 8.8 |
| 1910 | 12 | 9.3 |
| 1911 | 8 | 9.3 |
| 1912 | 15 | 9.3 |
| 1913 | 4 | 9.3 |
| 1914 | 8 | 9.3 |
| 1915 | 8 | 9.3 |
| 1916 | 14 | 9.3 |
| 1917 | 13 | 9.3 |
| 1918 | 8 | 9.3 |
| 1919 | 3 | 9.3 |
| 1920 | 18 | 10.3 |
| 1921 | 8 | 10.3 |
| 1922 | 10 | 10.3 |
| 1923 | 11 | 10.3 |
| 1924 | 10 | 10.3 |
| 1925 | 8 | 10.3 |
| 1926 | 17 | 10.3 |
| 1927 | 6 | 10.3 |
| 1928 | 7 | 10.3 |
| 1929 | 8 | 10.3 |
| 1930 | 2 | 9 |
| 1931 | 13 | 9 |
| 1932 | 14 | 9 |
| 1933 | 10 | 9 |
| 1934 | 4 | 9 |
| 1935 | 10 | 9 |
| 1936 | 6 | 9 |
| 1937 | 9 | 9 |
| 1938 | 10 | 9 |
| 1939 | 12 | 9 |
| 1940 | 12 | 9.8 |
| 1941 | 7 | 9.8 |
| 1942 | 13 | 9.8 |
| 1943 | 12 | 9.8 |
| 1944 | 5 | 9.8 |
| 1950 | 7 | 9.5 |
| 1952 | 9 | 9.5 |
| 1953 | 8 | 9.5 |
| 1954 | 9 | 9.5 |
| 1955 | 8 | 9.5 |
| 1956 | 16 | 9.5 |
| 1964 | 11 | 11 |
| Year | First date | Last date |
|---|---|---|
| 1893 | 1893-04-21 | 1893-09-24 |
| 1894 | 1894-04-19 | 1894-10-05 |
| 1895 | 1895-01-03 | 1895-08-25 |
| 1896 | 1896-01-18 | 1896-12-27 |
| 1897 | 1897-02-28 | 1897-08-30 |
| 1898 | 1898-04-04 | 1898-10-07 |
| 1899 | 1899-05-17 | 1899-09-10 |
| 1900 | 1900-03-27 | 1900-09-11 |
| 1901 | 1901-02-26 | 1901-11-12 |
| 1902 | 1902-03-26 | 1902-12-17 |
| 1904 | 1904-06-11 | 1904-08-30 |
| 1905 | 1905-04-08 | 1905-10-22 |
| 1906 | 1906-06-22 | 1906-11-19 |
| 1907 | 1907-04-06 | 1907-11-22 |
| 1908 | 1908-03-03 | 1908-09-01 |
| 1909 | 1909-02-24 | 1909-09-01 |
| 1910 | 1910-05-18 | 1910-11-04 |
| 1911 | 1911-05-09 | 1911-09-28 |
| 1912 | 1912-03-09 | 1912-11-14 |
| 1913 | 1913-03-25 | 1913-12-23 |
| 1914 | 1914-03-12 | 1914-12-02 |
| 1915 | 1915-06-23 | 1915-08-23 |
| 1916 | 1916-01-05 | 1916-11-11 |
| 1917 | 1917-01-30 | 1917-08-03 |
| 1918 | 1918-03-05 | 1918-10-07 |
| 1919 | 1919-02-16 | 1919-06-26 |
| 1920 | 1920-04-30 | 1920-10-11 |
| 1921 | 1921-06-01 | 1921-11-25 |
| 1922 | 1922-01-06 | 1922-12-09 |
| 1923 | 1923-05-05 | 1923-12-14 |
| 1924 | 1924-02-19 | 1924-12-14 |
| 1925 | 1925-05-24 | 1925-08-29 |
| 1926 | 1926-03-21 | 1926-12-05 |
| 1927 | 1927-02-24 | 1927-08-01 |
| 1928 | 1928-02-12 | 1928-10-14 |
| 1929 | 1929-06-04 | 1929-12-27 |
| 1930 | 1930-07-02 | 1930-10-18 |
| 1931 | 1931-04-28 | 1931-11-16 |
| 1932 | 1932-02-05 | 1932-10-12 |
| 1933 | 1933-03-29 | 1933-08-31 |
| 1934 | 1934-04-03 | 1934-11-07 |
| 1935 | 1935-03-30 | 1935-12-24 |
| 1936 | 1936-05-31 | 1936-11-14 |
| 1937 | 1937-02-20 | 1937-09-01 |
| 1938 | 1938-02-19 | 1938-06-28 |
| 1939 | 1939-01-23 | 1939-11-01 |
| 1940 | 1940-01-05 | 1940-11-21 |
| 1941 | 1941-01-24 | 1941-11-18 |
| 1942 | 1942-05-21 | 1942-11-21 |
| 1943 | 1943-02-17 | 1943-10-23 |
| 1944 | 1944-04-07 | 1944-09-30 |
| 1950 | 1950-06-01 | 1950-12-19 |
| 1952 | 1952-04-22 | 1952-11-26 |
| 1953 | 1953-06-10 | 1953-08-14 |
| 1954 | 1954-04-14 | 1954-12-11 |
| 1955 | 1955-03-22 | 1955-11-05 |
| 1956 | 1956-04-15 | 1956-12-13 |
| 1964 | 1964-04-29 | 1964-11-18 |
Every Fixed Threshold
| 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 | 58 | 18 | 1920 | 11 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 43 | 5 | 1901 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 4 | 1 | 1900 | 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).