September weather in Kaycee, WY
The average temperature in Kaycee in September is 58.9°F (42.1°F–75.6°F). Average precipitation: 1.03 inches. Average snowfall is 0.3 inches.
September is a fall month in Kaycee, and is warmer than the annual average of 45.2°F. Daily temperatures swing about 33.5°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
75.6°F
Avg Low
42.1°F
Precipitation
1.03 in
Snow
0.3 in
September records in Kaycee
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1940) | 30.9°F (1905) | 0.83 in (1966) |
| September 2 | 98.1°F (1940) | 30.0°F (1959) | 0.93 in (1973) |
| September 3 | 98.1°F (1978) | 30.0°F (1959) | 0.40 in (1949) |
| September 4 | 99.0°F (1978) | 28.0°F (1962) | 0.45 in (2016) |
| September 5 | 100.9°F (2022) | 28.9°F (1965) | 1.23 in (2023) |
| September 6 | 100.9°F (1978) | 27.0°F (1956) | 0.55 in (1951) |
| September 7 | 98.1°F (1978) | 30.9°F (1992) | 0.45 in (1907) |
| September 8 | 100.9°F (2022) | 30.0°F (1962) | 0.66 in (2020) |
| September 9 | 97.0°F (1979) | 26.1°F (1962) | 0.98 in (1940) |
| September 10 | 95.0°F (2021) | 26.1°F (2020) | 0.65 in (1986) |
| September 11 | 99.0°F (2025) | 28.9°F (1957) | 1.23 in (1903) |
| September 12 | 96.1°F (1990) | 21.9°F (1902) | 0.68 in (1961) |
| September 13 | 99.0°F (2025) | 21.9°F (1949) | 0.96 in (1982) |
| September 14 | 95.0°F (1948) | 21.9°F (1974) | 1.09 in (1982) |
| September 15 | 93.9°F (1948) | 26.1°F (1903) | 0.98 in (2011) |
| September 16 | 96.1°F (1904) | 25.0°F (1950) | 0.64 in (1967) |
| September 17 | 91.0°F (2000) | 21.9°F (1973) | 0.50 in (2002) |
| September 18 | 93.9°F (2024) | 12.9°F (1965) | 0.68 in (1967) |
| September 19 | 91.9°F (1981) | 21.9°F (1901) | 1.01 in (1961) |
| September 20 | 91.9°F (1956) | 15.1°F (1983) | 0.82 in (1989) |
| September 21 | 88.0°F (2016) | 16.0°F (1983) | 0.94 in (1963) |
| September 22 | 89.1°F (1905) | 19.9°F (1971) | 1.19 in (1962) |
| September 23 | 90.0°F (1966) | 23.0°F (1965) | 0.50 in (2016) |
| September 24 | 91.0°F (1948) | 21.9°F (1965) | 1.50 in (2016) |
| September 25 | 91.0°F (2001) | 25.0°F (1953) | 0.66 in (1955) |
| September 26 | 93.0°F (2014) | 18.0°F (1972) | 0.57 in (1902) |
| September 27 | 93.9°F (2024) | 23.0°F (1964) | 1.30 in (2004) |
| September 28 | 90.0°F (1994) | 18.0°F (1950) | 0.40 in (1907) |
| September 29 | 91.0°F (2010) | 19.9°F (1985) | 1.00 in (1995) |
| September 30 | 93.0°F (2024) | 16.0°F (1985) | 1.15 in (1905) |