September weather in Sonora, CA
The average temperature in Sonora in September is 68.8°F (50.8°F–86.7°F). Average precipitation: 0.20 inches.
September is a fall month in Sonora, and is warmer than the annual average of 57.7°F. Daily temperatures swing about 35.9°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
86.7°F
Avg Low
50.8°F
Precipitation
0.20 in
Daylight
12h 14m
September records in Sonora
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 108.0°F (1955) | 41.0°F (1964) | 0.32 in (1964) |
| September 2 | 105.1°F (1969) | 39.9°F (1964) | 0.89 in (2023) |
| September 3 | 108.0°F (1955) | 45.0°F (1964) | 0.41 in (1912) |
| September 4 | 104.0°F (1988) | 44.1°F (2000) | 0.38 in (1945) |
| September 5 | 107.1°F (1950) | 42.1°F (1970) | 0.65 in (1978) |
| September 6 | 108.0°F (2022) | 43.0°F (2000) | 1.53 in (1978) |
| September 7 | 109.9°F (2022) | 42.1°F (1978) | 1.80 in (1985) |
| September 8 | 105.1°F (1944) | 39.0°F (1983) | 0.26 in (1969) |
| September 9 | 106.0°F (1944) | 37.9°F (1985) | 0.30 in (1998) |
| September 10 | 102.0°F (1948) | 37.9°F (1985) | 1.08 in (1978) |
| September 11 | 104.0°F (1944) | 37.0°F (1985) | 0.97 in (1976) |
| September 12 | 104.0°F (1979) | 35.1°F (1985) | 0.01 in (1976) |
| September 13 | 104.0°F (1945) | 39.0°F (1966) | 0.19 in (1963) |
| September 14 | 105.1°F (1971) | 37.9°F (1986) | 0.50 in (1910) |
| September 15 | 106.0°F (1971) | 36.0°F (1986) | 0.34 in (1910) |
| September 16 | 105.1°F (1971) | 39.9°F (1985) | 0.21 in (1910) |
| September 17 | 102.0°F (1971) | 37.9°F (1986) | 1.19 in (1989) |
| September 18 | 102.9°F (1984) | 39.0°F (1986) | 0.75 in (1985) |
| September 19 | 100.0°F (1939) | 37.0°F (1965) | 4.25 in (1959) |
| September 20 | 102.0°F (1939) | 37.9°F (1970) | 0.70 in (2022) |
| September 21 | 100.0°F (1939) | 37.9°F (2004) | 1.00 in (1923) |
| September 22 | 100.9°F (1949) | 37.0°F (2016) | 0.64 in (2013) |
| September 23 | 104.0°F (1949) | 37.0°F (2017) | 0.76 in (1934) |
| September 24 | 100.0°F (1949) | 36.0°F (1920) | 1.24 in (1986) |
| September 25 | 100.0°F (1962) | 35.1°F (1920) | 0.98 in (1982) |
| September 26 | 100.0°F (1963) | 37.0°F (2013) | 0.33 in (1939) |
| September 27 | 104.0°F (1963) | 36.0°F (1948) | 0.40 in (1938) |
| September 28 | 102.0°F (1963) | 37.0°F (1971) | 0.53 in (2014) |
| September 29 | 102.0°F (2010) | 36.0°F (1982) | 0.72 in (1989) |
| September 30 | 98.1°F (1991) | 36.0°F (1950) | 0.34 in (1983) |