September weather in Oroville, CA
The average temperature in Oroville in September is 73.3°F (57.1°F–89.6°F). Average precipitation: 0.37 inches.
September is a fall month in Oroville, and is warmer than the annual average of 63.5°F. Daily temperatures swing about 32.5°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 15m. For travel, September is hot.
Avg High
89.6°F
Avg Low
57.1°F
Precipitation
0.37 in
Daylight
12h 15m
September records in Oroville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 108.0°F (2017) | 46.9°F (2016) | 0.36 in (1964) |
| September 2 | 108.0°F (1955) | 48.9°F (1995) | 0.01 in (1997) |
| September 3 | 107.1°F (1955) | 48.0°F (1994) | 0.05 in (1997) |
| September 4 | 108.0°F (1955) | 46.0°F (2016) | 0.00 in (1953) |
| September 5 | 111.9°F (2022) | 37.9°F (2002) | 2.00 in (2017) |
| September 6 | 113.0°F (2022) | 44.1°F (2016) | 0.00 in (1953) |
| September 7 | 111.0°F (2022) | 45.0°F (1987) | 1.09 in (1985) |
| September 8 | 108.0°F (2022) | 45.0°F (1995) | 0.40 in (1985) |
| September 9 | 108.0°F (2022) | 44.1°F (1995) | 0.50 in (1985) |
| September 10 | 106.0°F (2011) | 46.9°F (1985) | 0.15 in (1985) |
| September 11 | 108.0°F (1953) | 45.0°F (1995) | 0.00 in (1953) |
| September 12 | 102.0°F (1960) | 45.0°F (1986) | 0.12 in (1963) |
| September 13 | 102.9°F (1971) | 39.9°F (1988) | 0.24 in (1963) |
| September 14 | 107.1°F (1971) | 39.9°F (1988) | 0.81 in (2009) |
| September 15 | 106.0°F (1971) | 42.1°F (1988) | 0.39 in (1997) |
| September 16 | 106.0°F (1971) | 39.9°F (1987) | 1.14 in (2019) |
| September 17 | 102.0°F (1971) | 39.0°F (1990) | 0.95 in (1989) |
| September 18 | 102.0°F (1962) | 41.0°F (1955) | 1.55 in (1959) |
| September 19 | 102.0°F (2000) | 44.1°F (1989) | 1.88 in (2022) |
| September 20 | 102.0°F (1984) | 41.0°F (1988) | 1.90 in (2007) |
| September 21 | 102.9°F (1994) | 42.1°F (1995) | 0.89 in (2013) |
| September 22 | 102.0°F (1987) | 39.9°F (2016) | 0.07 in (2013) |
| September 23 | 102.0°F (1964) | 27.0°F (2008) | 0.33 in (1983) |
| September 24 | 106.0°F (1964) | 42.1°F (1958) | 1.94 in (1986) |
| September 25 | 102.9°F (1964) | 45.0°F (1984) | 0.46 in (2014) |
| September 26 | 100.0°F (1960) | 43.0°F (2011) | 0.32 in (1972) |
| September 27 | 102.9°F (1958) | 44.1°F (1986) | 0.20 in (1986) |
| September 28 | 102.0°F (1963) | 39.9°F (1988) | 0.55 in (1957) |
| September 29 | 102.0°F (1966) | 43.0°F (1986) | 0.45 in (1989) |
| September 30 | 107.1°F (1966) | 43.0°F (2007) | 1.00 in (2023) |