September weather in Pierce, CO
The average temperature in Pierce in September is 60.3°F (44.3°F–76.3°F). Average precipitation: 1.11 inches.
September is a fall month in Pierce, and is warmer than the annual average of 47.3°F. Daily temperatures swing about 32°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
76.3°F
Avg Low
44.3°F
Precipitation
1.11 in
Daylight
12h 15m
September records in Pierce
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.3°F (2019) | 39.9°F (2005) | 0.11 in (2008) |
| September 2 | 98.1°F (2019) | 34.7°F (2006) | 0.02 in (2009) |
| September 3 | 97.2°F (2017) | 32.9°F (2010) | 0.34 in (2021) |
| September 4 | 93.6°F (2013) | 37.2°F (2011) | 0.28 in (2004) |
| September 5 | 99.7°F (2022) | 37.4°F (2011) | 0.04 in (2008) |
| September 6 | 98.6°F (2022) | 37.4°F (2010) | 0.09 in (2011) |
| September 7 | 95.9°F (2022) | 30.9°F (2010) | 0.63 in (2011) |
| September 8 | 99.0°F (2022) | 28.8°F (2020) | 0.33 in (2020) |
| September 9 | 95.7°F (2021) | 29.1°F (2020) | 0.42 in (2013) |
| September 10 | 97.5°F (2021) | 28.6°F (2016) | 0.31 in (2013) |
| September 11 | 95.0°F (2021) | 32.2°F (2014) | 0.90 in (2006) |
| September 12 | 92.5°F (2018) | 27.0°F (2014) | 0.79 in (2008) |
| September 13 | 93.9°F (2018) | 25.0°F (2014) | 0.44 in (2013) |
| September 14 | 91.4°F (2018) | 33.3°F (2003) | 1.02 in (2013) |
| September 15 | 91.9°F (2018) | 38.3°F (2003) | 0.54 in (2013) |
| September 16 | 92.8°F (2018) | 34.9°F (2004) | 0.09 in (2025) |
| September 17 | 91.0°F (2018) | 31.8°F (2006) | 0.15 in (2007) |
| September 18 | 89.6°F (2004) | 28.0°F (2003) | 0.01 in (2003) |
| September 19 | 90.3°F (2014) | 29.5°F (2003) | 0.23 in (2023) |
| September 20 | 91.0°F (2010) | 37.9°F (2003) | 0.08 in (2006) |
| September 21 | 88.2°F (2015) | 32.7°F (2021) | 0.58 in (2004) |
| September 22 | 86.9°F (2018) | 30.4°F (2003) | 0.34 in (2025) |
| September 23 | 87.8°F (2016) | 32.5°F (2006) | 0.86 in (2025) |
| September 24 | 86.7°F (2020) | 29.8°F (2006) | 0.79 in (2007) |
| September 25 | 86.7°F (2014) | 30.2°F (2018) | 0.16 in (2012) |
| September 26 | 92.3°F (2024) | 30.4°F (2018) | 0.82 in (2012) |
| September 27 | 89.2°F (2015) | 31.6°F (2020) | 0.47 in (2012) |
| September 28 | 89.4°F (2010) | 26.6°F (2009) | 0.24 in (2017) |
| September 29 | 88.9°F (2024) | 28.9°F (2005) | 0.59 in (2014) |
| September 30 | 84.7°F (2023) | 28.2°F (2003) | 0.66 in (2004) |