September weather in McKinley, MN
The average temperature in McKinley in September is 55.7°F (45.3°F–66.0°F). Average precipitation: 3.44 inches.
September is a fall month in McKinley, and is warmer than the annual average of 38.9°F. Daily temperatures swing about 20.7°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
66.0°F
Avg Low
45.3°F
Precipitation
3.44 in
Daylight
12h 19m
September records in McKinley
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 84.0°F (2013) | 37.9°F (1994) | 0.36 in (2020) |
| September 2 | 84.9°F (2008) | 39.0°F (1994) | 1.09 in (2017) |
| September 3 | 91.9°F (2023) | 39.9°F (1994) | 1.55 in (2010) |
| September 4 | 93.9°F (2023) | 36.0°F (2020) | 1.15 in (1999) |
| September 5 | 93.9°F (2023) | 37.0°F (1988) | 1.32 in (2015) |
| September 6 | 87.1°F (1998) | 33.1°F (2020) | 2.62 in (2007) |
| September 7 | 90.0°F (2002) | 33.1°F (2020) | 1.44 in (1995) |
| September 8 | 88.0°F (2002) | 30.9°F (2020) | 2.75 in (1991) |
| September 9 | 84.0°F (2011) | 36.0°F (1995) | 1.66 in (2025) |
| September 10 | 86.0°F (2005) | 30.9°F (2020) | 0.85 in (2019) |
| September 11 | 86.0°F (2005) | 30.9°F (2007) | 3.15 in (2003) |
| September 12 | 84.0°F (2011) | 33.1°F (2007) | 1.57 in (2023) |
| September 13 | 82.9°F (2024) | 33.1°F (2014) | 1.90 in (1994) |
| September 14 | 82.9°F (2017) | 30.0°F (2007) | 1.90 in (1998) |
| September 15 | 82.9°F (2017) | 30.9°F (2007) | 1.45 in (2004) |
| September 16 | 82.0°F (2024) | 32.0°F (1993) | 0.69 in (2017) |
| September 17 | 86.0°F (2024) | 32.0°F (2020) | 1.72 in (1992) |
| September 18 | 84.0°F (2024) | 28.9°F (2020) | 1.58 in (2003) |
| September 19 | 84.0°F (2000) | 28.0°F (2020) | 0.67 in (1998) |
| September 20 | 84.0°F (2021) | 32.0°F (1991) | 0.96 in (2007) |
| September 21 | 81.0°F (2022) | 32.0°F (1991) | 0.82 in (2011) |
| September 22 | 81.0°F (2023) | 27.0°F (1995) | 1.77 in (1994) |
| September 23 | 81.0°F (2007) | 27.0°F (1995) | 0.70 in (2001) |
| September 24 | 80.1°F (2007) | 28.0°F (2012) | 2.10 in (2023) |
| September 25 | 80.1°F (2020) | 28.0°F (2012) | 0.56 in (2023) |
| September 26 | 78.1°F (2024) | 30.9°F (1989) | 2.35 in (1999) |
| September 27 | 82.0°F (2024) | 28.0°F (1991) | 1.10 in (2008) |
| September 28 | 82.9°F (1987) | 28.0°F (2000) | 0.33 in (1988) |
| September 29 | 84.0°F (2024) | 28.0°F (2000) | 0.38 in (1997) |
| September 30 | 82.0°F (2025) | 27.0°F (2003) | 1.09 in (1995) |