Montrose Threshold Days by Year (USC00365915)
17 fixed thresholds counted per year at Montrose (USC00365915): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Montrose Thresholds
- Montrose: days with 10 mm (0.39 in) or more of precipitation in 101 years, most in 1928 with 46.
- Montrose: days with 25 mm (0.98 in) or more of precipitation in 101 years, most in 2007 with 17.
- Montrose: nights with a minimum temperature at or below 0 C (32 F) in 100 years, most in 1997 with 186.
- Montrose: nights with a minimum temperature at or below -10 C (14 F) in 100 years, most in 1978 with 75.
- 17 fixed thresholds have at least one qualifying day at Montrose.
Days at or above 30 C (86 F)
99 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1904 | 6 | 15.5 |
| 1905 | 5 | 15.5 |
| 1906 | 13 | 15.5 |
| 1907 | 13 | 15.5 |
| 1908 | 37 | 15.5 |
| 1909 | 19 | 15.5 |
| 1910 | 17 | 12 |
| 1911 | 16 | 12 |
| 1912 | 11 | 12 |
| 1913 | 12 | 12 |
| 1914 | 8 | 12 |
| 1915 | 5 | 12 |
| 1916 | 16 | 12 |
| 1917 | 8 | 12 |
| 1918 | 15 | 12 |
| 1919 | 12 | 12 |
| 1920 | 2 | 8.9 |
| 1921 | 20 | 8.9 |
| 1922 | 8 | 8.9 |
| 1923 | 17 | 8.9 |
| 1924 | 5 | 8.9 |
| 1925 | 10 | 8.9 |
| 1926 | 6 | 8.9 |
| 1927 | 4 | 8.9 |
| 1928 | 4 | 8.9 |
| 1929 | 13 | 8.9 |
| 1930 | 11 | 12.6 |
| 1931 | 16 | 12.6 |
| 1932 | 4 | 12.6 |
| 1933 | 12 | 12.6 |
| 1937 | 14 | 12.6 |
| 1938 | 11 | 12.6 |
| 1939 | 20 | 12.6 |
| 1940 | 11 | 15.1 |
| 1942 | 8 | 15.1 |
| 1943 | 21 | 15.1 |
| 1944 | 25 | 15.1 |
| 1945 | 7 | 15.1 |
| 1946 | 5 | 15.1 |
| 1947 | 16 | 15.1 |
| 1948 | 13 | 15.1 |
| 1949 | 30 | 15.1 |
| 1950 | 2 | 8.3 |
| 1951 | 7 | 8.3 |
| 1953 | 19 | 8.3 |
| 1954 | 9 | 8.3 |
| 1956 | 4 | 8.3 |
| 1957 | 8 | 8.3 |
| 1958 | 1 | 8.3 |
| 1959 | 16 | 8.3 |
| 1960 | 1 | 10.2 |
| 1961 | 8 | 10.2 |
| 1962 | 10 | 10.2 |
| 1963 | 11 | 10.2 |
| 1964 | 22 | 10.2 |
| 1965 | 12 | 10.2 |
| 1966 | 15 | 10.2 |
| 1967 | 3 | 10.2 |
| 1968 | 14 | 10.2 |
| 1969 | 6 | 10.2 |
| 1970 | 5 | 6.3 |
| 1971 | 5 | 6.3 |
| 1972 | 4 | 6.3 |
| 1973 | 16 | 6.3 |
| 1974 | 5 | 6.3 |
| 1975 | 8 | 6.3 |
| 1976 | 2 | 6.3 |
| 1977 | 6 | 6.3 |
| 1978 | 4 | 6.3 |
| 1979 | 8 | 6.3 |
| 1980 | 12 | 9.9 |
| 1981 | 6 | 9.9 |
| 1982 | 3 | 9.9 |
| 1983 | 21 | 9.9 |
| 1984 | 4 | 9.9 |
| 1985 | 1 | 9.9 |
| 1986 | 3 | 9.9 |
| 1987 | 14 | 9.9 |
| 1988 | 32 | 9.9 |
| 1989 | 3 | 9.9 |
| 1990 | 4 | 10.8 |
| 1991 | 20 | 10.8 |
| 1992 | 1 | 10.8 |
| 1993 | 11 | 10.8 |
| 1994 | 12 | 10.8 |
| 1995 | 22 | 10.8 |
| 1996 | 4 | 10.8 |
| 1997 | 10 | 10.8 |
| 1998 | 4 | 10.8 |
| 1999 | 20 | 10.8 |
| 2000 | 2 | 12.6 |
| 2001 | 14 | 12.6 |
| 2002 | 23 | 12.6 |
| 2003 | 5 | 12.6 |
| 2004 | 1 | 12.6 |
| 2005 | 30 | 12.6 |
| 2006 | 15 | 12.6 |
| 2007 | 13 | 12.6 |
| 2008 | 10 | 12.6 |
| Year | First date | Last date |
|---|---|---|
| 1904 | 1904-05-25 | 1904-08-01 |
| 1905 | 1905-06-15 | 1905-07-19 |
| 1906 | 1906-07-22 | 1906-09-19 |
| 1907 | 1907-06-18 | 1907-08-20 |
| 1908 | 1908-05-28 | 1908-09-26 |
| 1909 | 1909-06-23 | 1909-09-14 |
| 1910 | 1910-06-20 | 1910-09-06 |
| 1911 | 1911-05-12 | 1911-08-10 |
| 1912 | 1912-06-02 | 1912-09-11 |
| 1913 | 1913-06-16 | 1913-08-18 |
| 1914 | 1914-05-26 | 1914-09-23 |
| 1915 | 1915-04-25 | 1915-09-17 |
| 1916 | 1916-07-12 | 1916-08-23 |
| 1917 | 1917-07-22 | 1917-08-09 |
| 1918 | 1918-06-01 | 1918-08-25 |
| 1919 | 1919-06-02 | 1919-09-08 |
| 1920 | 1920-06-11 | 1920-06-29 |
| 1921 | 1921-06-21 | 1921-09-03 |
| 1922 | 1922-07-12 | 1922-10-06 |
| 1923 | 1923-06-05 | 1923-08-11 |
| 1924 | 1924-07-24 | 1924-08-31 |
| 1925 | 1925-04-24 | 1925-08-31 |
| 1926 | 1926-07-03 | 1926-08-03 |
| 1927 | 1927-07-13 | 1927-10-02 |
| 1928 | 1928-05-04 | 1928-08-15 |
| 1929 | 1929-06-18 | 1929-09-29 |
| 1930 | 1930-05-07 | 1930-08-09 |
| 1931 | 1931-06-20 | 1931-09-23 |
| 1932 | 1932-07-13 | 1932-09-02 |
| 1933 | 1933-06-09 | 1933-08-01 |
| 1937 | 1937-06-01 | 1937-09-03 |
| 1938 | 1938-06-21 | 1938-08-17 |
| 1939 | 1939-05-31 | 1939-09-16 |
| 1940 | 1940-07-22 | 1940-08-17 |
| 1942 | 1942-07-14 | 1942-09-16 |
| 1943 | 1943-06-05 | 1943-09-02 |
| 1944 | 1944-06-01 | 1944-09-03 |
| 1945 | 1945-06-15 | 1945-09-08 |
| 1946 | 1946-06-26 | 1946-07-31 |
| 1947 | 1947-06-12 | 1947-09-09 |
| 1948 | 1948-05-12 | 1948-09-14 |
| 1949 | 1949-05-06 | 1949-08-29 |
| 1950 | 1950-06-27 | 1950-08-02 |
| 1951 | 1951-07-11 | 1951-09-01 |
| 1953 | 1953-06-10 | 1953-09-06 |
| 1954 | 1954-06-22 | 1954-08-25 |
| 1956 | 1956-06-14 | 1956-07-02 |
| 1957 | 1957-06-16 | 1957-08-04 |
| 1958 | 1958-07-02 | 1958-07-02 |
| 1959 | 1959-06-29 | 1959-09-10 |
| 1960 | 1960-08-30 | 1960-08-30 |
| 1961 | 1961-06-14 | 1961-09-25 |
| 1962 | 1962-05-16 | 1962-09-01 |
| 1963 | 1963-06-27 | 1963-07-29 |
| 1964 | 1964-05-24 | 1964-09-12 |
| 1965 | 1965-06-08 | 1965-08-18 |
| 1966 | 1966-06-26 | 1966-08-10 |
| 1967 | 1967-06-11 | 1967-06-17 |
| 1968 | 1968-06-09 | 1968-08-26 |
| 1969 | 1969-05-30 | 1969-07-18 |
| 1970 | 1970-07-28 | 1970-09-25 |
| 1971 | 1971-05-20 | 1971-07-09 |
| 1972 | 1972-07-20 | 1972-07-24 |
| 1973 | 1973-06-06 | 1973-09-06 |
| 1974 | 1974-06-11 | 1974-07-15 |
| 1975 | 1975-05-21 | 1975-08-27 |
| 1976 | 1976-04-19 | 1976-04-20 |
| 1977 | 1977-07-16 | 1977-08-29 |
| 1978 | 1978-06-03 | 1978-07-24 |
| 1979 | 1979-05-10 | 1979-08-02 |
| 1980 | 1980-06-27 | 1980-09-03 |
| 1981 | 1981-06-16 | 1981-07-12 |
| 1982 | 1982-07-17 | 1982-07-19 |
| 1983 | 1983-06-15 | 1983-09-21 |
| 1984 | 1984-06-08 | 1984-06-14 |
| 1985 | 1985-08-16 | 1985-08-16 |
| 1986 | 1986-05-31 | 1986-07-08 |
| 1987 | 1987-05-31 | 1987-08-18 |
| 1988 | 1988-05-31 | 1988-08-16 |
| 1989 | 1989-06-28 | 1989-08-06 |
| 1990 | 1990-04-28 | 1990-07-05 |
| 1991 | 1991-06-16 | 1991-09-17 |
| 1992 | 1992-05-23 | 1992-05-23 |
| 1993 | 1993-06-19 | 1993-08-28 |
| 1994 | 1994-06-16 | 1994-07-22 |
| 1995 | 1995-06-19 | 1995-09-01 |
| 1996 | 1996-05-20 | 1996-08-08 |
| 1997 | 1997-06-22 | 1997-08-17 |
| 1998 | 1998-05-17 | 1998-09-07 |
| 1999 | 1999-06-08 | 1999-09-07 |
| 2000 | 2000-05-10 | 2000-06-26 |
| 2001 | 2001-05-05 | 2001-08-10 |
| 2002 | 2002-04-17 | 2002-09-11 |
| 2003 | 2003-06-25 | 2003-07-05 |
| 2004 | 2004-08-04 | 2004-08-04 |
| 2005 | 2005-06-09 | 2005-08-15 |
| 2006 | 2006-05-30 | 2006-08-04 |
| 2007 | 2007-06-09 | 2007-09-08 |
| 2008 | 2008-06-08 | 2008-09-06 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 99 | 37 | 1908 | 10 |
| 35 C (95 F): Days | 15 | 6 | 1911 | 1 |
| 90 F (32.2 C): Days | 60 | 17 | 1908 | 4 |
| 0 C (32 F): Ice days (max | 99 | 85 | 1904 | 55 |
| 0 C (32 F): Frost days (min | 100 | 186 | 1997 | 181 |
| -10 C (14 F): Days with min | 100 | 75 | 1978 | 56 |
| -20 C (-4 F): Days with min | 93 | 23 | 1920 | 4 |
| -30 C (-22 F): Days with min | 5 | 1 | 1914 | 1 |
| 20 C (68 F): Tropical nights (min | 51 | 8 | 1920 | 3 |
| 25 C (77 F): Days with min | 1 | 1 | 1918 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 101 | 46 | 1928 | 40 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 101 | 17 | 2007 | 7 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 62 | 4 | 1950 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 3 | 1 | 1999 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 81 | 11 | 1960 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 42 | 4 | 1996 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 7 | 1 | 1926 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.
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).