September weather in Superior, WY
The average temperature in Superior in September is 57.3°F (43.9°F–70.7°F). Average precipitation: 0.79 inches. Average snowfall is 1.2 inches.
September is a fall month in Superior, and is warmer than the annual average of 43.7°F. Daily temperatures swing about 26.8°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
70.7°F
Avg Low
43.9°F
Precipitation
0.79 in
Snow
1.2 in
September records in Superior
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 90.0°F (2022) | 32.0°F (1973) | 1.29 in (1973) |
| September 2 | 90.0°F (2019) | 32.0°F (1973) | 0.23 in (1999) |
| September 3 | 91.0°F (2022) | 30.0°F (1961) | 1.20 in (1983) |
| September 4 | 93.0°F (2022) | 33.1°F (1968) | 0.44 in (1987) |
| September 5 | 91.9°F (2022) | 36.0°F (1956) | 0.52 in (1972) |
| September 6 | 91.0°F (2020) | 35.1°F (2010) | 0.53 in (1963) |
| September 7 | 93.0°F (2022) | 29.1°F (2020) | 0.73 in (1971) |
| September 8 | 88.0°F (2022) | 24.3°F (2020) | 0.36 in (2020) |
| September 9 | 88.0°F (2021) | 21.9°F (1962) | 0.58 in (1961) |
| September 10 | 87.1°F (2021) | 30.2°F (2020) | 0.67 in (1950) |
| September 11 | 84.9°F (1971) | 27.0°F (1989) | 2.00 in (1973) |
| September 12 | 88.0°F (1990) | 21.2°F (2014) | 0.43 in (1994) |
| September 13 | 86.0°F (1990) | 26.1°F (1970) | 0.36 in (2021) |
| September 14 | 87.1°F (1948) | 26.1°F (1970) | 0.27 in (2016) |
| September 15 | 86.0°F (1990) | 24.1°F (1970) | 0.33 in (2015) |
| September 16 | 84.0°F (2000) | 18.0°F (1965) | 0.68 in (1965) |
| September 17 | 82.9°F (2010) | 10.0°F (1965) | 1.29 in (1965) |
| September 18 | 84.0°F (2014) | 5.0°F (1965) | 0.43 in (1967) |
| September 19 | 86.0°F (2010) | 21.0°F (1965) | 0.87 in (1950) |
| September 20 | 81.0°F (1956) | 19.0°F (1965) | 0.19 in (1979) |
| September 21 | 82.0°F (1967) | 21.9°F (1995) | 0.32 in (1963) |
| September 22 | 84.0°F (1966) | 21.0°F (2000) | 1.09 in (2016) |
| September 23 | 82.9°F (1966) | 19.0°F (2000) | 0.54 in (2000) |
| September 24 | 82.0°F (2001) | 21.0°F (2000) | 0.41 in (1986) |
| September 25 | 82.9°F (2001) | 18.0°F (2000) | 0.35 in (1955) |
| September 26 | 82.9°F (2015) | 24.1°F (1996) | 0.58 in (1959) |
| September 27 | 82.0°F (1969) | 18.0°F (1996) | 0.81 in (2014) |
| September 28 | 84.9°F (2024) | 19.9°F (1985) | 0.32 in (2014) |
| September 29 | 84.9°F (2024) | 18.0°F (1985) | 0.72 in (1965) |
| September 30 | 80.1°F (1980) | 15.1°F (1985) | 0.34 in (1971) |