September weather in Greenfield, MA
The average temperature in Greenfield in September is 62.2°F (50.3°F–74.1°F). Average precipitation: 4.24 inches.
September is a fall month in Greenfield, and is warmer than the annual average of 48°F. Daily temperatures swing about 23.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
74.1°F
Avg Low
50.3°F
Precipitation
4.24 in
Daylight
12h 16m
September records in Greenfield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.9°F (2010) | 43.0°F (2017) | 0.70 in (2005) |
| September 2 | 91.9°F (2010) | 39.9°F (2017) | 2.48 in (2021) |
| September 3 | 93.0°F (2010) | 39.9°F (2017) | 0.90 in (2020) |
| September 4 | 91.9°F (2018) | 41.0°F (2007) | 1.10 in (2017) |
| September 5 | 89.1°F (2018) | 44.1°F (2007) | 0.80 in (2012) |
| September 6 | 90.0°F (2023) | 42.1°F (2013) | 1.97 in (2022) |
| September 7 | 91.9°F (2018) | 43.0°F (2010) | 3.51 in (2008) |
| September 8 | 93.0°F (2023) | 43.0°F (2010) | 0.22 in (2024) |
| September 9 | 91.9°F (2015) | 39.9°F (2008) | 1.76 in (2023) |
| September 10 | 91.0°F (2015) | 37.0°F (2008) | 0.95 in (2007) |
| September 11 | 84.0°F (2016) | 36.0°F (2008) | 1.48 in (2018) |
| September 12 | 91.9°F (2013) | 37.9°F (2006) | 1.40 in (2007) |
| September 13 | 82.0°F (2017) | 37.9°F (2006) | 1.32 in (2013) |
| September 14 | 84.9°F (2016) | 44.1°F (2014) | 1.11 in (2015) |
| September 15 | 84.9°F (2016) | 39.9°F (2014) | 0.50 in (2012) |
| September 16 | 84.0°F (2021) | 39.0°F (2020) | 1.20 in (2005) |
| September 17 | 86.0°F (2018) | 35.1°F (2013) | 0.37 in (2010) |
| September 18 | 84.9°F (2015) | 32.0°F (2008) | 1.60 in (2018) |
| September 19 | 84.0°F (2015) | 30.9°F (2008) | 3.55 in (2012) |
| September 20 | 84.0°F (2024) | 33.1°F (2008) | 1.20 in (2022) |
| September 21 | 82.0°F (2016) | 30.0°F (2008) | 0.21 in (2005) |
| September 22 | 82.9°F (2019) | 30.9°F (2020) | 0.94 in (2013) |
| September 23 | 84.9°F (2016) | 32.0°F (2020) | 0.49 in (2022) |
| September 24 | 89.1°F (2019) | 39.0°F (2022) | 0.72 in (2021) |
| September 25 | 90.0°F (2017) | 37.0°F (2008) | 0.74 in (2025) |
| September 26 | 91.0°F (2017) | 36.0°F (2009) | 1.25 in (2018) |
| September 27 | 88.0°F (2007) | 37.0°F (2009) | 1.87 in (2008) |
| September 28 | 87.1°F (2017) | 39.0°F (2015) | 1.48 in (2010) |
| September 29 | 84.9°F (2025) | 39.0°F (2015) | 0.93 in (2012) |
| September 30 | 82.9°F (2015) | 36.0°F (2006) | 3.25 in (2015) |