September weather in Peterson, MN
The average temperature in Peterson in September is 60.8°F (48.2°F–73.4°F). Average precipitation: 3.96 inches.
September is a fall month in Peterson, and is warmer than the annual average of 44.8°F. Daily temperatures swing about 25.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
73.4°F
Avg Low
48.2°F
Precipitation
3.96 in
Daylight
12h 17m
September records in Peterson
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 90.0°F (2000) | 41.0°F (2009) | 1.59 in (2010) |
| September 2 | 93.0°F (2011) | 41.0°F (2001) | 0.47 in (1997) |
| September 3 | 96.1°F (2023) | 44.1°F (1997) | 1.21 in (1992) |
| September 4 | 97.0°F (2023) | 37.9°F (2025) | 1.05 in (2018) |
| September 5 | 95.0°F (2023) | 37.0°F (2025) | 2.65 in (2018) |
| September 6 | 90.0°F (2023) | 39.9°F (2017) | 1.50 in (2004) |
| September 7 | 87.1°F (1998) | 36.0°F (2025) | 2.40 in (2016) |
| September 8 | 93.9°F (2003) | 36.0°F (2025) | 2.23 in (2015) |
| September 9 | 90.0°F (2002) | 37.9°F (2008) | 1.73 in (2014) |
| September 10 | 93.0°F (2013) | 37.9°F (2008) | 2.20 in (2016) |
| September 11 | 89.1°F (2005) | 37.0°F (1993) | 1.36 in (2006) |
| September 12 | 91.9°F (1994) | 34.0°F (2014) | 1.15 in (1999) |
| September 13 | 91.0°F (1998) | 34.0°F (2014) | 2.25 in (2019) |
| September 14 | 91.0°F (1998) | 33.1°F (1996) | 1.25 in (2005) |
| September 15 | 89.1°F (2017) | 30.9°F (2011) | 4.36 in (2004) |
| September 16 | 87.1°F (1994) | 32.0°F (2011) | 3.84 in (2010) |
| September 17 | 87.1°F (2025) | 41.0°F (1995) | 0.75 in (1997) |
| September 18 | 87.1°F (2024) | 36.0°F (2012) | 2.00 in (2018) |
| September 19 | 86.0°F (1998) | 36.0°F (2020) | 1.65 in (2019) |
| September 20 | 89.1°F (1998) | 32.0°F (2006) | 1.45 in (2024) |
| September 21 | 88.0°F (2017) | 32.0°F (2006) | 0.80 in (2018) |
| September 22 | 89.1°F (2005) | 34.0°F (2002) | 4.00 in (2016) |
| September 23 | 91.9°F (2017) | 28.0°F (2012) | 2.08 in (2010) |
| September 24 | 91.0°F (2017) | 27.0°F (2012) | 1.96 in (2010) |
| September 25 | 84.9°F (2017) | 28.0°F (2012) | 1.10 in (2017) |
| September 26 | 89.1°F (2005) | 30.0°F (2001) | 0.80 in (2009) |
| September 27 | 89.1°F (2005) | 30.9°F (2012) | 0.89 in (2011) |
| September 28 | 82.0°F (2014) | 30.0°F (2022) | 0.22 in (2015) |
| September 29 | 82.9°F (2024) | 28.9°F (2003) | 0.61 in (2005) |
| September 30 | 87.1°F (2025) | 27.0°F (2003) | 0.10 in (2019) |