September weather in Glenwood Springs, CO
The average temperature in Glenwood Springs in September is 61.0°F (43.8°F–78.2°F). Average precipitation: 1.63 inches.
September is a fall month in Glenwood Springs, and is warmer than the annual average of 47.6°F. Daily temperatures swing about 34.4°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
78.2°F
Avg Low
43.8°F
Precipitation
1.63 in
Daylight
12h 15m
September records in Glenwood Springs
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1947) | 35.1°F (1965) | 0.53 in (1992) |
| September 2 | 95.0°F (1947) | 34.0°F (1905) | 0.68 in (1906) |
| September 3 | 96.1°F (1950) | 32.0°F (1905) | 0.75 in (1910) |
| September 4 | 100.0°F (1924) | 35.1°F (1907) | 1.93 in (1982) |
| September 5 | 95.0°F (2013) | 33.1°F (1910) | 0.57 in (1971) |
| September 6 | 97.0°F (2020) | 32.0°F (1915) | 0.96 in (1996) |
| September 7 | 95.0°F (2020) | 28.9°F (1911) | 1.15 in (2003) |
| September 8 | 93.0°F (1944) | 30.0°F (1911) | 0.60 in (1929) |
| September 9 | 93.0°F (2021) | 28.9°F (1962) | 0.70 in (2020) |
| September 10 | 93.9°F (2021) | 30.9°F (1962) | 1.11 in (2003) |
| September 11 | 93.9°F (2021) | 34.0°F (1922) | 0.65 in (1977) |
| September 12 | 91.9°F (1990) | 30.0°F (1978) | 1.05 in (2005) |
| September 13 | 93.9°F (1990) | 26.1°F (1967) | 0.92 in (1988) |
| September 14 | 96.1°F (1990) | 28.0°F (1967) | 1.00 in (1987) |
| September 15 | 93.9°F (1990) | 30.0°F (2003) | 0.55 in (1906) |
| September 16 | 96.1°F (1990) | 24.1°F (1916) | 0.70 in (1910) |
| September 17 | 90.0°F (1935) | 28.0°F (1915) | 1.85 in (2007) |
| September 18 | 89.1°F (1937) | 28.0°F (1969) | 0.76 in (2002) |
| September 19 | 97.0°F (2018) | 21.0°F (1975) | 1.04 in (1972) |
| September 20 | 90.0°F (2010) | 21.0°F (1975) | 0.87 in (1997) |
| September 21 | 91.9°F (1944) | 26.1°F (1983) | 0.89 in (1997) |
| September 22 | 90.0°F (1943) | 26.1°F (1946) | 1.03 in (1961) |
| September 23 | 91.0°F (1943) | 26.1°F (1946) | 0.68 in (1961) |
| September 24 | 91.0°F (1943) | 28.9°F (1926) | 1.01 in (1958) |
| September 25 | 90.0°F (2001) | 21.9°F (1912) | 1.02 in (1927) |
| September 26 | 88.0°F (1947) | 23.0°F (1912) | 0.62 in (1986) |
| September 27 | 90.0°F (2001) | 24.1°F (1912) | 0.94 in (1943) |
| September 28 | 99.0°F (1999) | 19.9°F (1907) | 0.66 in (1943) |
| September 29 | 89.1°F (1938) | 26.1°F (1999) | 0.90 in (1995) |
| September 30 | 88.0°F (2001) | 25.0°F (1975) | 1.45 in (2005) |