September weather in Garrison, MN
The average temperature in Garrison in September is 58.5°F (48.5°F–68.6°F). Average precipitation: 2.95 inches.
September is a fall month in Garrison, and is warmer than the annual average of 41°F. Daily temperatures swing about 20.1°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
68.6°F
Avg Low
48.5°F
Precipitation
2.95 in
Daylight
12h 19m
September records in Garrison
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 88.0°F (1979) | 28.9°F (1974) | 0.50 in (1961) |
| September 2 | 91.9°F (1983) | 37.0°F (1972) | 2.91 in (1985) |
| September 3 | 86.0°F (1971) | 27.0°F (1974) | 1.36 in (1991) |
| September 4 | 87.1°F (1970) | 34.0°F (1974) | 2.14 in (2014) |
| September 5 | 87.1°F (1970) | 32.0°F (1988) | 0.90 in (1979) |
| September 6 | 89.1°F (2007) | 35.1°F (1988) | 1.55 in (2004) |
| September 7 | 90.0°F (2013) | 37.9°F (1968) | 1.77 in (1964) |
| September 8 | 96.1°F (1976) | 28.9°F (1985) | 1.24 in (1991) |
| September 9 | 88.0°F (2003) | 30.9°F (1969) | 0.74 in (1962) |
| September 10 | 84.9°F (2011) | 30.9°F (2006) | 1.30 in (1983) |
| September 11 | 86.0°F (2005) | 32.0°F (1999) | 0.56 in (2003) |
| September 12 | 84.9°F (2005) | 28.0°F (2007) | 2.35 in (2003) |
| September 13 | 87.1°F (1976) | 28.0°F (1963) | 1.64 in (2005) |
| September 14 | 82.9°F (1969) | 28.9°F (1970) | 1.37 in (1990) |
| September 15 | 84.9°F (2017) | 26.1°F (2007) | 3.70 in (1994) |
| September 16 | 87.1°F (2018) | 28.9°F (1976) | 1.37 in (1986) |
| September 17 | 86.0°F (2018) | 30.0°F (1980) | 1.37 in (1968) |
| September 18 | 84.0°F (1985) | 30.0°F (1971) | 2.06 in (1975) |
| September 19 | 82.9°F (1984) | 27.0°F (1971) | 1.86 in (2007) |
| September 20 | 86.0°F (2021) | 25.0°F (1973) | 1.35 in (1989) |
| September 21 | 81.0°F (2005) | 25.0°F (1976) | 0.82 in (2018) |
| September 22 | 78.1°F (2015) | 18.0°F (1974) | 1.17 in (1969) |
| September 23 | 80.1°F (2020) | 23.0°F (1984) | 3.66 in (1984) |
| September 24 | 82.0°F (2007) | 23.0°F (1976) | 1.15 in (1977) |
| September 25 | 82.0°F (2007) | 21.9°F (1974) | 0.55 in (1980) |
| September 26 | 80.1°F (1987) | 19.0°F (1965) | 1.58 in (1999) |
| September 27 | 82.9°F (1987) | 25.0°F (1967) | 0.50 in (1996) |
| September 28 | 80.1°F (2014) | 21.9°F (1976) | 0.50 in (1988) |
| September 29 | 80.1°F (2014) | 23.0°F (1974) | 0.76 in (1995) |
| September 30 | 82.0°F (2021) | 25.0°F (1984) | 4.82 in (2019) |