September weather in Bainville, MT
The average temperature in Bainville in September is 59.6°F (43.5°F–75.7°F). Average precipitation: 1.33 inches.
September is a fall month in Bainville, and is warmer than the annual average of 43.3°F. Daily temperatures swing about 32.2°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 20m. For travel, September is a comfortable month to visit.
Avg High
75.7°F
Avg Low
43.5°F
Precipitation
1.33 in
Daylight
12h 20m
September records in Bainville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 104.0°F (1983) | 30.9°F (1924) | 1.73 in (2017) |
| September 2 | 99.0°F (1901) | 30.0°F (1974) | 1.57 in (1953) |
| September 3 | 102.9°F (1940) | 30.0°F (1974) | 1.53 in (1973) |
| September 4 | 102.9°F (1998) | 27.0°F (1956) | 1.35 in (1911) |
| September 5 | 100.0°F (1998) | 21.9°F (1965) | 1.27 in (1938) |
| September 6 | 102.0°F (1976) | 28.0°F (1968) | 1.78 in (1911) |
| September 7 | 105.1°F (1908) | 19.9°F (1929) | 2.64 in (2019) |
| September 8 | 100.0°F (1994) | 21.9°F (1929) | 1.37 in (1991) |
| September 9 | 102.0°F (1994) | 27.0°F (1943) | 1.10 in (1950) |
| September 10 | 97.0°F (1998) | 25.0°F (1955) | 0.66 in (1921) |
| September 11 | 95.0°F (1971) | 19.9°F (1964) | 0.88 in (1980) |
| September 12 | 95.0°F (1969) | 19.9°F (1989) | 1.60 in (1978) |
| September 13 | 91.0°F (1969) | 16.0°F (1949) | 1.44 in (1927) |
| September 14 | 93.9°F (1946) | 19.9°F (1993) | 1.09 in (1927) |
| September 15 | 102.0°F (1948) | 21.0°F (1982) | 1.55 in (1906) |
| September 16 | 96.1°F (1998) | 19.9°F (1973) | 0.71 in (1950) |
| September 17 | 93.9°F (1943) | 15.1°F (1902) | 1.17 in (2006) |
| September 18 | 96.1°F (2021) | 21.9°F (1971) | 1.38 in (1988) |
| September 19 | 93.9°F (1937) | 19.9°F (1965) | 1.36 in (1978) |
| September 20 | 91.0°F (2009) | 25.0°F (1904) | 1.23 in (2018) |
| September 21 | 91.9°F (1938) | 18.0°F (1995) | 1.08 in (1969) |
| September 22 | 95.0°F (1938) | 18.0°F (1983) | 0.81 in (2006) |
| September 23 | 96.1°F (1992) | 21.9°F (1976) | 1.07 in (2016) |
| September 24 | 91.9°F (1949) | 17.1°F (1926) | 1.05 in (1931) |
| September 25 | 97.0°F (2014) | 10.9°F (1926) | 1.90 in (1923) |
| September 26 | 95.0°F (2014) | 17.1°F (1928) | 0.78 in (1959) |
| September 27 | 93.0°F (2014) | 12.9°F (1928) | 1.19 in (1982) |
| September 28 | 93.9°F (2021) | 19.0°F (1928) | 0.69 in (1987) |
| September 29 | 91.9°F (2021) | 17.1°F (1939) | 1.06 in (1925) |
| September 30 | 96.1°F (2024) | 14.0°F (1961) | 1.35 in (1905) |