September weather in Estes Park, CO
The average temperature in Estes Park in September is 54.4°F (39.2°F–69.6°F). Average precipitation: 1.65 inches. Average snowfall is 0.5 inches.
September is a fall month in Estes Park, and is warmer than the annual average of 42.9°F. Daily temperatures swing about 30.4°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
69.6°F
Avg Low
39.2°F
Precipitation
1.65 in
Snow
0.5 in
September records in Estes Park
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 84.0°F (2011) | 35.1°F (2005) | 0.35 in (2017) |
| September 2 | 86.0°F (2019) | 36.0°F (2014) | 0.12 in (2013) |
| September 3 | 88.0°F (2019) | 32.0°F (2006) | 0.22 in (2003) |
| September 4 | 84.0°F (2013) | 33.1°F (2006) | 0.22 in (2015) |
| September 5 | 84.0°F (2019) | 33.1°F (2011) | 1.02 in (2013) |
| September 6 | 89.1°F (2020) | 35.1°F (2006) | 0.26 in (2007) |
| September 7 | 86.0°F (2020) | 30.9°F (2010) | 0.80 in (2019) |
| September 8 | 80.1°F (2002) | 26.1°F (2020) | 0.61 in (2001) |
| September 9 | 78.1°F (2005) | 19.9°F (2020) | 0.95 in (2020) |
| September 10 | 81.0°F (2018) | 21.0°F (2020) | 0.43 in (2013) |
| September 11 | 82.0°F (2018) | 28.9°F (2016) | 0.66 in (2013) |
| September 12 | 82.0°F (2018) | 26.1°F (2014) | 3.90 in (2013) |
| September 13 | 82.9°F (2018) | 26.1°F (2014) | 3.74 in (2013) |
| September 14 | 82.9°F (2018) | 27.0°F (2003) | 0.13 in (2005) |
| September 15 | 82.0°F (2018) | 27.0°F (2003) | 0.36 in (2011) |
| September 16 | 82.9°F (2018) | 33.1°F (2005) | 0.52 in (2013) |
| September 17 | 84.0°F (2018) | 33.1°F (2006) | 0.23 in (2007) |
| September 18 | 82.0°F (2018) | 28.0°F (2003) | 0.26 in (2001) |
| September 19 | 84.0°F (2018) | 27.0°F (2003) | 0.30 in (2013) |
| September 20 | 81.0°F (2010) | 28.0°F (2003) | 0.53 in (2000) |
| September 21 | 79.0°F (2005) | 30.9°F (2003) | 0.29 in (2004) |
| September 22 | 78.1°F (2015) | 26.1°F (2011) | 0.42 in (2004) |
| September 23 | 75.9°F (2018) | 27.0°F (2011) | 0.34 in (2013) |
| September 24 | 78.1°F (2018) | 26.1°F (2006) | 0.70 in (2000) |
| September 25 | 78.1°F (2001) | 28.9°F (2006) | 0.38 in (2017) |
| September 26 | 78.1°F (2020) | 26.1°F (2018) | 0.49 in (2012) |
| September 27 | 79.0°F (2010) | 26.1°F (2018) | 0.19 in (2012) |
| September 28 | 78.1°F (2001) | 28.0°F (2009) | 0.18 in (2004) |
| September 29 | 82.0°F (2010) | 27.0°F (2020) | 0.32 in (2014) |
| September 30 | 79.0°F (2018) | 30.0°F (2003) | 0.39 in (2004) |