September weather in Denton, MT
The average temperature in Denton in September is 55.3°F (38.8°F–71.8°F). Average precipitation: 1.31 inches.
September is a fall month in Denton, and is warmer than the annual average of 42.8°F. Daily temperatures swing about 33°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
71.8°F
Avg Low
38.8°F
Precipitation
1.31 in
Daylight
12h 19m
September records in Denton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1983) | 30.9°F (2008) | 1.04 in (1973) |
| September 2 | 95.0°F (1969) | 27.0°F (1974) | 0.58 in (1953) |
| September 3 | 99.0°F (1925) | 28.0°F (2004) | 0.64 in (1909) |
| September 4 | 93.9°F (1998) | 26.1°F (1962) | 0.33 in (1910) |
| September 5 | 97.0°F (1967) | 28.9°F (1991) | 0.60 in (1949) |
| September 6 | 95.0°F (1980) | 28.0°F (1994) | 0.95 in (2001) |
| September 7 | 95.0°F (1998) | 26.1°F (1992) | 1.67 in (1941) |
| September 8 | 98.1°F (1979) | 28.0°F (1999) | 0.74 in (1977) |
| September 9 | 93.0°F (1981) | 19.9°F (1962) | 0.75 in (1983) |
| September 10 | 91.0°F (1968) | 26.1°F (1921) | 0.56 in (1979) |
| September 11 | 93.0°F (1969) | 17.1°F (1989) | 0.76 in (1978) |
| September 12 | 91.0°F (1990) | 19.9°F (1989) | 2.00 in (1978) |
| September 13 | 89.1°F (1913) | 23.0°F (2007) | 0.76 in (1996) |
| September 14 | 89.1°F (2009) | 17.1°F (1970) | 1.47 in (1917) |
| September 15 | 88.0°F (1979) | 19.9°F (1970) | 0.28 in (1973) |
| September 16 | 93.0°F (1998) | 21.9°F (1980) | 0.72 in (1946) |
| September 17 | 93.0°F (1998) | 21.9°F (1982) | 1.10 in (1996) |
| September 18 | 91.9°F (1981) | 18.0°F (1965) | 1.95 in (1988) |
| September 19 | 93.9°F (1981) | 23.0°F (1965) | 1.10 in (1925) |
| September 20 | 90.0°F (1922) | 21.0°F (1978) | 1.38 in (1941) |
| September 21 | 89.1°F (1917) | 14.0°F (1995) | 1.07 in (1909) |
| September 22 | 86.0°F (1924) | 19.0°F (1993) | 0.99 in (1945) |
| September 23 | 90.0°F (1992) | 21.0°F (1993) | 0.65 in (1913) |
| September 24 | 91.9°F (2009) | 19.0°F (2000) | 1.67 in (1917) |
| September 25 | 90.0°F (1963) | 16.0°F (1984) | 0.68 in (1924) |
| September 26 | 93.0°F (2011) | 17.1°F (1972) | 0.50 in (2013) |
| September 27 | 90.0°F (1963) | 24.1°F (1977) | 0.55 in (2014) |
| September 28 | 89.1°F (2010) | 12.9°F (1984) | 0.90 in (2014) |
| September 29 | 91.0°F (1967) | 12.0°F (1972) | 0.55 in (2009) |
| September 30 | 91.9°F (1992) | 15.1°F (1985) | 0.45 in (2009) |