September weather in Colusa, CA
The average temperature in Colusa in September is 71.8°F (54.4°F–89.1°F). Average precipitation: 0.11 inches.
September is a fall month in Colusa, and is warmer than the annual average of 61.5°F. Daily temperatures swing about 34.7°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 14m. For travel, September is hot.
Avg High
89.1°F
Avg Low
54.4°F
Precipitation
0.11 in
Daylight
12h 14m
September records in Colusa
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 109.0°F (1955) | 46.0°F (1964) | 0.38 in (1964) |
| September 2 | 111.9°F (1950) | 48.0°F (1989) | 0.00 in (1949) |
| September 3 | 109.9°F (1955) | 46.0°F (2024) | 0.00 in (1949) |
| September 4 | 109.9°F (1950) | 34.0°F (2021) | 0.04 in (1998) |
| September 5 | 108.0°F (1988) | 34.0°F (2021) | 0.00 in (1949) |
| September 6 | 111.9°F (2022) | 34.0°F (2021) | 0.09 in (1978) |
| September 7 | 114.1°F (2022) | 34.0°F (2021) | 0.00 in (1949) |
| September 8 | 108.0°F (2022) | 41.0°F (1983) | 1.03 in (1985) |
| September 9 | 109.9°F (2022) | 35.1°F (1983) | 0.44 in (1978) |
| September 10 | 107.1°F (1953) | 36.0°F (1983) | 0.08 in (1985) |
| September 11 | 107.1°F (1953) | 42.1°F (1983) | 0.19 in (1976) |
| September 12 | 102.0°F (1979) | 45.0°F (1965) | 0.02 in (1963) |
| September 13 | 108.0°F (1953) | 45.0°F (1970) | 0.03 in (2022) |
| September 14 | 106.0°F (1953) | 44.1°F (1966) | 0.23 in (1997) |
| September 15 | 102.9°F (1971) | 43.0°F (1959) | 0.01 in (1955) |
| September 16 | 102.9°F (1951) | 45.0°F (1960) | 0.34 in (1961) |
| September 17 | 102.0°F (1979) | 44.1°F (1960) | 2.17 in (1989) |
| September 18 | 102.9°F (2000) | 42.1°F (1988) | 1.72 in (1959) |
| September 19 | 104.0°F (2000) | 35.1°F (2023) | 0.57 in (2022) |
| September 20 | 102.9°F (1994) | 41.0°F (1965) | 0.90 in (2022) |
| September 21 | 102.0°F (1994) | 36.0°F (2023) | 0.16 in (2013) |
| September 22 | 102.9°F (1949) | 39.9°F (2023) | 0.87 in (2013) |
| September 23 | 105.1°F (1949) | 43.0°F (1972) | 0.14 in (2007) |
| September 24 | 102.0°F (1949) | 44.1°F (1972) | 0.42 in (2001) |
| September 25 | 100.9°F (2009) | 43.0°F (1972) | 0.21 in (1979) |
| September 26 | 100.9°F (1967) | 43.0°F (1955) | 0.30 in (1972) |
| September 27 | 102.0°F (2009) | 42.1°F (1971) | 0.90 in (1957) |
| September 28 | 100.0°F (2009) | 42.1°F (1986) | 0.19 in (1976) |
| September 29 | 104.0°F (1966) | 36.0°F (1983) | 0.49 in (1989) |
| September 30 | 102.0°F (2010) | 39.0°F (1971) | 0.73 in (1983) |