September weather in Maynard, IA
The average temperature in Maynard in September is 64.1°F (52.1°F–76.1°F). Average precipitation: 3.38 inches.
September is a fall month in Maynard, and is warmer than the annual average of 47.6°F. Daily temperatures swing about 24°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
76.1°F
Avg Low
52.1°F
Precipitation
3.38 in
Daylight
12h 16m
September records in Maynard
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 90.0°F (2012) | 44.1°F (2009) | 1.86 in (2010) |
| September 2 | 90.0°F (2011) | 48.0°F (2009) | 0.56 in (2014) |
| September 3 | 88.0°F (2012) | 50.0°F (2009) | 1.67 in (2011) |
| September 4 | 86.0°F (2007) | 43.0°F (2010) | 1.20 in (2018) |
| September 5 | 93.9°F (2012) | 43.0°F (2010) | 1.32 in (2018) |
| September 6 | 89.1°F (2007) | 42.1°F (2017) | 1.92 in (2020) |
| September 7 | 91.0°F (2016) | 43.0°F (2017) | 0.98 in (2007) |
| September 8 | 87.1°F (2013) | 42.1°F (2024) | 0.38 in (2016) |
| September 9 | 84.9°F (2022) | 41.0°F (2008) | 1.20 in (2020) |
| September 10 | 93.9°F (2013) | 39.9°F (2008) | 1.77 in (2019) |
| September 11 | 93.0°F (2013) | 44.1°F (2014) | 2.38 in (2006) |
| September 12 | 89.1°F (2021) | 37.9°F (2007) | 1.14 in (2020) |
| September 13 | 86.0°F (2025) | 33.1°F (2014) | 0.49 in (2021) |
| September 14 | 91.9°F (2025) | 34.0°F (2014) | 0.02 in (2021) |
| September 15 | 91.0°F (2025) | 32.0°F (2011) | 0.13 in (2019) |
| September 16 | 91.0°F (2018) | 32.0°F (2011) | 2.12 in (2016) |
| September 17 | 89.1°F (2018) | 39.9°F (2014) | 0.61 in (2006) |
| September 18 | 91.9°F (2018) | 36.0°F (2012) | 0.06 in (2013) |
| September 19 | 84.9°F (2022) | 36.0°F (2012) | 1.58 in (2007) |
| September 20 | 90.0°F (2021) | 33.1°F (2006) | 2.20 in (2018) |
| September 21 | 98.1°F (2022) | 32.0°F (2006) | 0.53 in (2021) |
| September 22 | 93.0°F (2017) | 35.1°F (2012) | 0.90 in (2016) |
| September 23 | 93.9°F (2017) | 32.0°F (2012) | 2.32 in (2016) |
| September 24 | 93.0°F (2017) | 32.0°F (2012) | 1.20 in (2010) |
| September 25 | 91.9°F (2017) | 33.1°F (2012) | 0.52 in (2009) |
| September 26 | 90.0°F (2017) | 39.9°F (2010) | 1.27 in (2009) |
| September 27 | 86.0°F (2021) | 39.0°F (2012) | 0.57 in (2011) |
| September 28 | 86.0°F (2021) | 37.9°F (2006) | 0.37 in (2019) |
| September 29 | 84.0°F (2025) | 36.0°F (2018) | 0.43 in (2013) |
| September 30 | 88.0°F (2021) | 36.0°F (2018) | 0.10 in (2018) |