September weather in Stevensville, MT
The average temperature in Stevensville in September is 57.0°F (40.4°F–73.6°F). Average precipitation: 0.84 inches.
September is a fall month in Stevensville, and is warmer than the annual average of 45.6°F. Daily temperatures swing about 33.2°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
73.6°F
Avg Low
40.4°F
Precipitation
0.84 in
Daylight
12h 19m
September records in Stevensville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1967) | 26.1°F (1930) | 0.56 in (1961) |
| September 2 | 96.1°F (1998) | 30.9°F (1974) | 1.40 in (1915) |
| September 3 | 95.0°F (1950) | 28.0°F (1932) | 0.57 in (1916) |
| September 4 | 93.9°F (1988) | 28.0°F (1929) | 0.56 in (1936) |
| September 5 | 93.0°F (1967) | 27.0°F (1987) | 0.69 in (1995) |
| September 6 | 91.9°F (2018) | 23.0°F (1929) | 0.80 in (1959) |
| September 7 | 93.9°F (1998) | 19.9°F (1929) | 0.72 in (1978) |
| September 8 | 89.1°F (2005) | 26.1°F (1927) | 1.05 in (1995) |
| September 9 | 88.0°F (1935) | 24.1°F (1962) | 1.09 in (1930) |
| September 10 | 91.0°F (1981) | 27.0°F (1983) | 0.66 in (1927) |
| September 11 | 90.0°F (1959) | 26.1°F (1989) | 0.74 in (1930) |
| September 12 | 90.0°F (1953) | 25.0°F (2014) | 0.81 in (1985) |
| September 13 | 90.0°F (2002) | 24.1°F (1961) | 0.67 in (1927) |
| September 14 | 90.0°F (1948) | 19.9°F (1970) | 0.82 in (1920) |
| September 15 | 88.0°F (1953) | 19.9°F (1970) | 0.66 in (1954) |
| September 16 | 91.9°F (2009) | 21.9°F (1936) | 0.83 in (1947) |
| September 17 | 88.0°F (1981) | 19.0°F (1965) | 0.75 in (2005) |
| September 18 | 91.9°F (1917) | 19.0°F (1971) | 0.54 in (1957) |
| September 19 | 89.1°F (1917) | 21.0°F (1964) | 0.59 in (1995) |
| September 20 | 93.0°F (1922) | 19.0°F (1983) | 0.70 in (1968) |
| September 21 | 90.0°F (1936) | 17.1°F (1971) | 0.44 in (2008) |
| September 22 | 88.0°F (2011) | 21.0°F (1971) | 0.65 in (1934) |
| September 23 | 91.0°F (2009) | 18.0°F (2000) | 1.03 in (2007) |
| September 24 | 91.0°F (2001) | 7.0°F (1926) | 0.44 in (1917) |
| September 25 | 89.1°F (2014) | 12.0°F (1926) | 0.43 in (1981) |
| September 26 | 89.1°F (2015) | 16.0°F (1926) | 0.25 in (1915) |
| September 27 | 88.0°F (2010) | 19.0°F (1999) | 0.82 in (1940) |
| September 28 | 90.0°F (2010) | 19.9°F (1946) | 0.74 in (1940) |
| September 29 | 84.9°F (1938) | 16.0°F (1985) | 0.26 in (2007) |
| September 30 | 84.0°F (1934) | 18.0°F (1985) | 0.58 in (1918) |