September weather in Avon, CO
The average temperature in Avon in September is °F (°F–°F). Average precipitation: 2.06 inches.
September is a fall month in Avon, and is cooler than the annual average of 0°F. Expect about 8 days with precipitation. Daylight averages about 12h 15m.
Avg High
°F
Avg Low
°F
Precipitation
2.06 in
Daylight
12h 15m
September records in Avon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 80.8°F (2019) | 31.8°F (2005) | 0.20 in (2008) |
| September 2 | 81.7°F (2019) | 34.5°F (2006) | 0.30 in (2016) |
| September 3 | 81.9°F (2007) | 29.1°F (2006) | 0.20 in (2007) |
| September 4 | 98.1°F (2007) | 27.3°F (2004) | 0.40 in (2015) |
| September 5 | 82.6°F (2020) | 25.0°F (2004) | 0.40 in (2007) |
| September 6 | 82.2°F (2022) | 27.1°F (2004) | 0.70 in (2011) |
| September 7 | 81.0°F (2022) | 30.2°F (2004) | 0.40 in (2015) |
| September 8 | 80.2°F (2022) | 26.8°F (2020) | 0.70 in (2006) |
| September 9 | 79.0°F (2021) | 25.9°F (2020) | 1.50 in (2014) |
| September 10 | 80.2°F (2021) | 23.2°F (2003) | 0.40 in (2020) |
| September 11 | 77.0°F (2021) | 25.0°F (2003) | 0.50 in (2008) |
| September 12 | 77.0°F (2018) | 25.5°F (2003) | 0.20 in (2008) |
| September 13 | 77.5°F (2018) | 28.8°F (2005) | 0.50 in (2013) |
| September 14 | 79.5°F (2007) | 19.4°F (2003) | 0.30 in (2017) |
| September 15 | 78.3°F (2018) | 20.5°F (2004) | 0.40 in (2022) |
| September 16 | 75.7°F (2018) | 26.6°F (2006) | 0.80 in (2007) |
| September 17 | 76.1°F (2010) | 14.5°F (2006) | 1.10 in (2007) |
| September 18 | 79.2°F (2018) | 15.8°F (2003) | 0.50 in (2013) |
| September 19 | 77.5°F (2010) | 23.5°F (2003) | 0.10 in (2004) |
| September 20 | 78.8°F (2007) | 28.0°F (2003) | 0.30 in (2006) |
| September 21 | 88.2°F (2007) | 22.3°F (2004) | 0.90 in (2006) |
| September 22 | 72.7°F (2016) | 20.1°F (2006) | 0.80 in (2025) |
| September 23 | 73.6°F (2015) | 21.6°F (2004) | 0.40 in (2010) |
| September 24 | 73.4°F (2015) | 17.6°F (2006) | 0.40 in (2007) |
| September 25 | 73.6°F (2015) | 20.5°F (2006) | 0.60 in (2012) |
| September 26 | 74.7°F (2010) | 24.4°F (2006) | 0.10 in (2015) |
| September 27 | 74.8°F (2010) | 27.0°F (2013) | 1.50 in (2005) |
| September 28 | 80.2°F (2007) | 24.4°F (2013) | 0.60 in (2021) |
| September 29 | 76.1°F (2010) | 29.1°F (2013) | 0.50 in (2014) |
| September 30 | 74.1°F (2010) | 25.7°F (2007) | 0.40 in (2004) |