September weather in Pierson, IA
The average temperature in Pierson in September is 62.6°F (52.0°F–73.3°F). Average precipitation: 3.08 inches.
September is a fall month in Pierson, and is warmer than the annual average of 46.8°F. Daily temperatures swing about 21.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
73.3°F
Avg Low
52.0°F
Precipitation
3.08 in
Daylight
12h 16m
September records in Pierson
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 89.1°F (2011) | 46.9°F (2009) | 0.77 in (1961) |
| September 2 | 90.0°F (2012) | 48.0°F (2013) | 2.05 in (1992) |
| September 3 | 90.0°F (2012) | 44.1°F (2006) | 0.75 in (1995) |
| September 4 | 93.0°F (2012) | 46.0°F (2006) | 2.97 in (1989) |
| September 5 | 88.0°F (2015) | 45.0°F (2011) | 1.54 in (2012) |
| September 6 | 87.1°F (2013) | 41.0°F (2017) | 1.90 in (1965) |
| September 7 | 81.0°F (2013) | 46.0°F (2017) | 2.00 in (1965) |
| September 8 | 82.0°F (2005) | 45.0°F (2012) | 1.78 in (1989) |
| September 9 | 91.9°F (2005) | 39.9°F (2008) | 2.33 in (1965) |
| September 10 | 90.0°F (2005) | 48.9°F (2012) | 1.09 in (2016) |
| September 11 | 90.0°F (2012) | 44.1°F (2015) | 2.45 in (2019) |
| September 12 | 87.1°F (2005) | 41.0°F (2014) | 2.85 in (1982) |
| September 13 | 89.1°F (2004) | 36.0°F (2014) | 2.00 in (1978) |
| September 14 | 88.0°F (2017) | 37.9°F (2007) | 1.40 in (1986) |
| September 15 | 89.1°F (2018) | 35.1°F (2011) | 3.00 in (2004) |
| September 16 | 88.0°F (2018) | 41.0°F (2014) | 1.49 in (2016) |
| September 17 | 91.0°F (2018) | 44.1°F (2017) | 0.93 in (2006) |
| September 18 | 86.0°F (2005) | 35.1°F (2012) | 1.65 in (1968) |
| September 19 | 87.1°F (2004) | 39.9°F (2006) | 2.38 in (2018) |
| September 20 | 90.0°F (2005) | 35.1°F (2006) | 1.32 in (1964) |
| September 21 | 93.9°F (2005) | 46.0°F (2011) | 0.71 in (1959) |
| September 22 | 90.0°F (2017) | 30.9°F (2012) | 1.92 in (2004) |
| September 23 | 87.1°F (2017) | 34.0°F (2012) | 1.65 in (1994) |
| September 24 | 86.0°F (2017) | 42.1°F (2011) | 1.51 in (2010) |
| September 25 | 82.9°F (2019) | 39.9°F (2011) | 1.52 in (2005) |
| September 26 | 84.0°F (2008) | 37.9°F (2010) | 0.73 in (2005) |
| September 27 | 84.0°F (2013) | 37.9°F (2012) | 1.08 in (1965) |
| September 28 | 84.9°F (2011) | 36.0°F (2006) | 1.58 in (1988) |
| September 29 | 81.0°F (2012) | 33.1°F (2005) | 1.57 in (1988) |
| September 30 | 80.1°F (2005) | 39.0°F (2011) | 1.10 in (1982) |