September weather in Hyannis, NE
The average temperature in Hyannis in September is 62.2°F (49.1°F–75.3°F). Average precipitation: 1.61 inches.
September is a fall month in Hyannis, and is warmer than the annual average of 48.1°F. Daily temperatures swing about 26.2°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
75.3°F
Avg Low
49.1°F
Precipitation
1.61 in
Daylight
12h 16m
September records in Hyannis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.3°F (2023) | 41.7°F (2006) | 0.94 in (2021) |
| September 2 | 98.6°F (2015) | 39.6°F (2006) | 0.30 in (2021) |
| September 3 | 97.2°F (2023) | 40.1°F (2008) | 0.22 in (2015) |
| September 4 | 95.4°F (2013) | 43.3°F (2008) | 1.05 in (2016) |
| September 5 | 98.4°F (2020) | 43.7°F (2017) | 0.69 in (2016) |
| September 6 | 104.0°F (2013) | 41.4°F (2010) | 0.13 in (2008) |
| September 7 | 96.1°F (2022) | 38.5°F (2010) | 0.74 in (2008) |
| September 8 | 100.6°F (2022) | 32.4°F (2020) | 0.15 in (2008) |
| September 9 | 95.5°F (2024) | 30.7°F (2020) | 0.83 in (2019) |
| September 10 | 94.8°F (2012) | 33.8°F (2020) | 0.48 in (2023) |
| September 11 | 95.0°F (2018) | 31.8°F (2014) | 0.32 in (2019) |
| September 12 | 93.6°F (2017) | 32.4°F (2014) | 0.44 in (2008) |
| September 13 | 92.5°F (2015) | 33.6°F (2014) | 0.52 in (2025) |
| September 14 | 95.5°F (2015) | 34.9°F (2007) | 0.69 in (2004) |
| September 15 | 91.9°F (2018) | 35.8°F (2011) | 0.71 in (2011) |
| September 16 | 92.1°F (2018) | 38.3°F (2011) | 0.22 in (2022) |
| September 17 | 92.7°F (2018) | 37.8°F (2006) | 0.17 in (2011) |
| September 18 | 90.7°F (2013) | 33.1°F (2006) | 0.54 in (2015) |
| September 19 | 91.2°F (2022) | 32.9°F (2006) | 0.74 in (2018) |
| September 20 | 90.5°F (2010) | 36.5°F (2006) | 0.53 in (2004) |
| September 21 | 92.5°F (2005) | 39.0°F (2011) | 0.45 in (2006) |
| September 22 | 87.4°F (2020) | 40.1°F (2011) | 0.72 in (2004) |
| September 23 | 90.1°F (2018) | 40.5°F (2012) | 1.11 in (2013) |
| September 24 | 87.1°F (2020) | 38.8°F (2006) | 0.35 in (2017) |
| September 25 | 86.9°F (2024) | 37.2°F (2009) | 0.32 in (2017) |
| September 26 | 91.4°F (2024) | 37.2°F (2018) | 0.01 in (2004) |
| September 27 | 90.7°F (2021) | 35.1°F (2006) | 0.46 in (2013) |
| September 28 | 93.0°F (2024) | 34.5°F (2018) | 0.05 in (2018) |
| September 29 | 89.6°F (2024) | 35.4°F (2005) | 0.60 in (2014) |
| September 30 | 86.4°F (2005) | 38.7°F (2011) | 0.41 in (2007) |