September weather in Buffalo, WY
The average temperature in Buffalo in September is 56.7°F (41.7°F–71.8°F). Average precipitation: 1.28 inches. Average snowfall is 0.7 inches.
September is a fall month in Buffalo, and is warmer than the annual average of 43.4°F. Daily temperatures swing about 30.1°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
71.8°F
Avg Low
41.7°F
Precipitation
1.28 in
Snow
0.7 in
September records in Buffalo
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1983) | 30.9°F (1919) | 0.78 in (1966) |
| September 2 | 96.1°F (1976) | 30.0°F (1959) | 1.15 in (1973) |
| September 3 | 96.1°F (1978) | 28.9°F (1922) | 2.60 in (1926) |
| September 4 | 97.0°F (1998) | 27.0°F (1962) | 0.81 in (1999) |
| September 5 | 97.0°F (1978) | 28.9°F (1922) | 0.49 in (2016) |
| September 6 | 96.1°F (1978) | 28.0°F (1928) | 0.87 in (1951) |
| September 7 | 96.1°F (1978) | 28.0°F (1926) | 0.32 in (1976) |
| September 8 | 97.0°F (1979) | 28.0°F (1962) | 1.12 in (2013) |
| September 9 | 91.9°F (1979) | 26.1°F (2020) | 1.27 in (2022) |
| September 10 | 96.1°F (2005) | 25.0°F (2020) | 1.36 in (1986) |
| September 11 | 93.9°F (1959) | 19.9°F (1921) | 1.15 in (1903) |
| September 12 | 93.9°F (1958) | 19.9°F (2014) | 0.91 in (1909) |
| September 13 | 95.0°F (1959) | 19.9°F (2014) | 1.32 in (1982) |
| September 14 | 91.0°F (1959) | 21.0°F (1904) | 2.10 in (1982) |
| September 15 | 88.0°F (2020) | 24.1°F (1903) | 0.95 in (1967) |
| September 16 | 91.0°F (2000) | 21.9°F (1936) | 1.08 in (2006) |
| September 17 | 91.9°F (1907) | 19.9°F (1971) | 0.68 in (2002) |
| September 18 | 91.0°F (1984) | 15.1°F (1965) | 1.00 in (1967) |
| September 19 | 89.1°F (1956) | 21.9°F (1965) | 1.05 in (1961) |
| September 20 | 93.0°F (1956) | 23.0°F (1924) | 0.87 in (1986) |
| September 21 | 91.0°F (2010) | 23.0°F (1983) | 0.34 in (2002) |
| September 22 | 89.1°F (1905) | 21.0°F (1971) | 1.69 in (2023) |
| September 23 | 91.0°F (1966) | 21.0°F (1971) | 0.59 in (2023) |
| September 24 | 89.1°F (2011) | 9.0°F (1926) | 1.36 in (2016) |
| September 25 | 89.1°F (2020) | 10.9°F (1926) | 1.20 in (1966) |
| September 26 | 91.9°F (2014) | 19.9°F (1934) | 0.36 in (1929) |
| September 27 | 91.9°F (2015) | 19.0°F (1936) | 1.46 in (1923) |
| September 28 | 91.9°F (2015) | 21.9°F (1985) | 4.03 in (1923) |
| September 29 | 90.0°F (2001) | 19.9°F (1985) | 0.61 in (1923) |
| September 30 | 91.9°F (1963) | 15.1°F (1922) | 0.70 in (1995) |