September weather in Beaver Bay, MN
The average temperature in Beaver Bay in September is 55.5°F (45.6°F–65.4°F). Average precipitation: 3.30 inches.
September is a fall month in Beaver Bay, and is warmer than the annual average of 38.9°F. Daily temperatures swing about 19.8°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
65.4°F
Avg Low
45.6°F
Precipitation
3.30 in
Daylight
12h 19m
September records in Beaver Bay
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 87.1°F (2012) | 37.0°F (1994) | 0.72 in (2014) |
| September 2 | 84.9°F (2008) | 42.1°F (1997) | 1.41 in (2017) |
| September 3 | 87.1°F (2023) | 37.0°F (1997) | 0.44 in (2010) |
| September 4 | 91.9°F (2023) | 36.0°F (2025) | 0.83 in (2007) |
| September 5 | 87.1°F (1998) | 34.0°F (1993) | 1.08 in (1999) |
| September 6 | 91.9°F (1998) | 34.0°F (1993) | 1.25 in (2023) |
| September 7 | 86.0°F (2007) | 36.0°F (2024) | 1.35 in (2010) |
| September 8 | 90.0°F (2002) | 30.9°F (2020) | 0.79 in (2016) |
| September 9 | 90.0°F (2002) | 32.0°F (2020) | 1.45 in (2025) |
| September 10 | 88.0°F (2002) | 35.1°F (2020) | 1.49 in (2019) |
| September 11 | 82.0°F (1998) | 34.0°F (1993) | 0.63 in (2010) |
| September 12 | 91.9°F (1998) | 32.0°F (2007) | 0.97 in (2023) |
| September 13 | 93.9°F (2005) | 33.1°F (2007) | 1.42 in (2019) |
| September 14 | 77.0°F (2018) | 32.0°F (2011) | 2.06 in (1998) |
| September 15 | 84.0°F (2018) | 28.9°F (2007) | 1.95 in (2017) |
| September 16 | 77.0°F (2009) | 28.9°F (2007) | 0.96 in (2004) |
| September 17 | 84.0°F (2002) | 28.9°F (2020) | 1.51 in (2021) |
| September 18 | 82.9°F (2009) | 28.9°F (2020) | 1.18 in (2015) |
| September 19 | 86.0°F (2000) | 30.0°F (2020) | 1.39 in (1997) |
| September 20 | 82.0°F (1994) | 32.0°F (1995) | 1.38 in (1998) |
| September 21 | 86.0°F (2022) | 30.9°F (1999) | 1.69 in (2018) |
| September 22 | 79.0°F (2005) | 27.0°F (1995) | 0.56 in (2007) |
| September 23 | 82.0°F (2020) | 27.0°F (1995) | 2.77 in (2006) |
| September 24 | 87.1°F (2017) | 28.0°F (2000) | 1.42 in (2010) |
| September 25 | 82.0°F (2007) | 28.0°F (2001) | 2.03 in (2023) |
| September 26 | 81.0°F (2025) | 30.0°F (2001) | 1.97 in (1999) |
| September 27 | 75.9°F (2004) | 27.0°F (2000) | 3.50 in (1996) |
| September 28 | 75.9°F (2005) | 27.0°F (2000) | 0.37 in (1997) |
| September 29 | 82.0°F (2014) | 27.0°F (2018) | 0.48 in (2013) |
| September 30 | 78.1°F (2000) | 28.0°F (2009) | 0.95 in (2019) |