September weather in Bay City, OR
The average temperature in Bay City in September is 57.6°F (46.8°F–68.4°F). Average precipitation: 3.58 inches.
September is a fall month in Bay City, and is warmer than the annual average of 51°F. Daily temperatures swing about 21.6°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
68.4°F
Avg Low
46.8°F
Precipitation
3.58 in
Daylight
12h 18m
September records in Bay City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (1952) | 34.0°F (1973) | 1.30 in (1971) |
| September 2 | 90.0°F (1972) | 34.0°F (1956) | 2.65 in (1971) |
| September 3 | 87.1°F (1953) | 33.1°F (1956) | 0.98 in (1970) |
| September 4 | 95.0°F (1973) | 36.0°F (1956) | 1.88 in (1977) |
| September 5 | 93.0°F (1973) | 37.0°F (2018) | 0.66 in (1984) |
| September 6 | 91.9°F (2014) | 34.0°F (1960) | 1.00 in (1970) |
| September 7 | 87.1°F (1948) | 33.1°F (1960) | 0.90 in (1984) |
| September 8 | 91.9°F (1948) | 36.0°F (1976) | 1.49 in (1979) |
| September 9 | 91.0°F (1948) | 34.0°F (1970) | 1.16 in (1956) |
| September 10 | 91.9°F (1973) | 32.0°F (1988) | 1.42 in (1962) |
| September 11 | 82.0°F (1989) | 32.0°F (1988) | 1.35 in (1982) |
| September 12 | 87.1°F (1961) | 32.0°F (1988) | 1.50 in (2018) |
| September 13 | 93.0°F (1957) | 28.9°F (1970) | 1.30 in (1955) |
| September 14 | 97.0°F (1979) | 30.9°F (1970) | 1.42 in (1976) |
| September 15 | 87.1°F (1967) | 33.1°F (1969) | 2.34 in (1997) |
| September 16 | 82.9°F (1991) | 30.9°F (1962) | 1.85 in (1997) |
| September 17 | 90.0°F (1962) | 32.0°F (1965) | 2.78 in (1997) |
| September 18 | 82.9°F (1991) | 34.0°F (1965) | 2.00 in (2004) |
| September 19 | 91.9°F (1974) | 30.9°F (1983) | 1.45 in (1988) |
| September 20 | 84.9°F (1951) | 34.0°F (1949) | 1.44 in (1982) |
| September 21 | 91.9°F (1950) | 32.0°F (2002) | 1.72 in (1972) |
| September 22 | 93.0°F (1957) | 32.0°F (1993) | 1.20 in (1970) |
| September 23 | 84.9°F (1965) | 32.0°F (1961) | 1.40 in (2013) |
| September 24 | 93.9°F (1974) | 32.0°F (2000) | 2.17 in (2014) |
| September 25 | 89.1°F (1991) | 30.9°F (2005) | 1.16 in (1986) |
| September 26 | 93.0°F (1949) | 30.0°F (1961) | 1.29 in (1997) |
| September 27 | 90.0°F (1967) | 27.0°F (1972) | 1.48 in (1995) |
| September 28 | 90.0°F (2017) | 28.9°F (1983) | 2.30 in (2013) |
| September 29 | 86.0°F (1960) | 28.0°F (1983) | 2.57 in (2013) |
| September 30 | 86.0°F (1975) | 30.9°F (1971) | 2.05 in (2013) |