September weather in Ten Sleep, WY
The average temperature in Ten Sleep in September is 61.2°F (46.3°F–76.2°F). Average precipitation: 1.47 inches. Average snowfall is 0.3 inches.
September is a fall month in Ten Sleep, and is warmer than the annual average of 47.8°F. Daily temperatures swing about 29.9°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
76.2°F
Avg Low
46.3°F
Precipitation
1.47 in
Snow
0.3 in
September records in Ten Sleep
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1983) | 36.0°F (1980) | 0.74 in (1986) |
| September 2 | 95.0°F (1983) | 32.0°F (1974) | 0.55 in (1966) |
| September 3 | 95.0°F (2022) | 37.0°F (1964) | 0.43 in (1972) |
| September 4 | 97.0°F (2022) | 37.9°F (1980) | 0.80 in (1999) |
| September 5 | 97.0°F (2022) | 37.9°F (1965) | 0.63 in (2023) |
| September 6 | 93.9°F (1978) | 33.1°F (1984) | 0.42 in (1992) |
| September 7 | 98.1°F (2022) | 34.0°F (1984) | 0.68 in (1976) |
| September 8 | 96.1°F (2022) | 30.9°F (1984) | 1.16 in (1991) |
| September 9 | 91.9°F (2021) | 28.9°F (2020) | 1.06 in (1989) |
| September 10 | 91.9°F (2021) | 32.0°F (2007) | 1.00 in (2003) |
| September 11 | 90.0°F (1971) | 30.0°F (1989) | 0.94 in (2014) |
| September 12 | 93.0°F (1990) | 28.9°F (2014) | 0.38 in (1978) |
| September 13 | 90.0°F (1990) | 28.0°F (1974) | 1.06 in (1998) |
| September 14 | 87.1°F (2002) | 30.0°F (1974) | 0.46 in (1967) |
| September 15 | 91.0°F (2000) | 33.1°F (1973) | 0.96 in (2017) |
| September 16 | 91.9°F (2000) | 28.0°F (1965) | 0.84 in (2006) |
| September 17 | 90.0°F (2000) | 27.0°F (1965) | 0.45 in (2022) |
| September 18 | 89.1°F (1984) | 24.1°F (1965) | 0.87 in (1967) |
| September 19 | 91.0°F (2010) | 26.1°F (1983) | 1.76 in (1990) |
| September 20 | 90.0°F (2010) | 16.0°F (1983) | 0.53 in (1990) |
| September 21 | 84.0°F (1966) | 21.9°F (1983) | 0.52 in (2006) |
| September 22 | 84.9°F (1966) | 28.9°F (1971) | 0.49 in (2023) |
| September 23 | 91.9°F (1997) | 25.0°F (1984) | 0.92 in (2016) |
| September 24 | 86.0°F (1966) | 18.0°F (1984) | 1.76 in (2016) |
| September 25 | 90.0°F (2024) | 15.1°F (1984) | 0.77 in (1986) |
| September 26 | 90.0°F (2015) | 24.1°F (1972) | 0.37 in (1982) |
| September 27 | 88.0°F (2010) | 24.1°F (1984) | 1.36 in (2013) |
| September 28 | 89.1°F (2001) | 21.9°F (1984) | 0.76 in (1985) |
| September 29 | 91.0°F (2024) | 19.9°F (1985) | 0.29 in (2021) |
| September 30 | 88.0°F (2024) | 19.0°F (1985) | 0.52 in (1995) |