September weather in Red Lake Falls, MN
The average temperature in Red Lake Falls in September is 57.9°F (46.9°F–68.9°F). Average precipitation: 2.81 inches.
September is a fall month in Red Lake Falls, and is warmer than the annual average of 39.8°F. Daily temperatures swing about 22°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 20m. For travel, September is a comfortable month to visit.
Avg High
68.9°F
Avg Low
46.9°F
Precipitation
2.81 in
Daylight
12h 20m
September records in Red Lake Falls
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (1921) | 33.1°F (1946) | 0.96 in (1973) |
| September 2 | 96.1°F (1983) | 28.9°F (1917) | 1.96 in (1957) |
| September 3 | 95.0°F (2023) | 32.0°F (1974) | 1.65 in (1971) |
| September 4 | 93.9°F (1922) | 30.0°F (1914) | 1.01 in (1965) |
| September 5 | 96.1°F (1978) | 32.0°F (1924) | 1.52 in (1969) |
| September 6 | 95.0°F (1976) | 32.0°F (1956) | 2.00 in (1981) |
| September 7 | 93.0°F (1976) | 33.1°F (1986) | 1.78 in (2001) |
| September 8 | 95.0°F (1978) | 30.0°F (1956) | 1.30 in (1962) |
| September 9 | 91.9°F (1978) | 30.9°F (1917) | 1.87 in (1961) |
| September 10 | 95.0°F (1952) | 28.0°F (1917) | 2.77 in (1961) |
| September 11 | 93.0°F (1952) | 25.0°F (1955) | 1.69 in (2010) |
| September 12 | 88.0°F (1952) | 28.9°F (1937) | 0.84 in (1980) |
| September 13 | 93.0°F (1927) | 21.9°F (1923) | 1.55 in (1972) |
| September 14 | 89.1°F (1927) | 27.0°F (1956) | 1.45 in (1928) |
| September 15 | 87.1°F (1923) | 28.0°F (1984) | 1.65 in (1983) |
| September 16 | 93.0°F (2025) | 25.0°F (1973) | 1.43 in (1988) |
| September 17 | 91.0°F (1920) | 23.0°F (1959) | 3.71 in (1983) |
| September 18 | 88.0°F (1989) | 15.1°F (1929) | 1.20 in (1977) |
| September 19 | 89.1°F (1970) | 25.0°F (1929) | 1.58 in (1925) |
| September 20 | 88.0°F (1970) | 24.1°F (1918) | 2.48 in (2017) |
| September 21 | 89.1°F (1922) | 25.0°F (1934) | 1.59 in (2018) |
| September 22 | 95.0°F (1922) | 15.1°F (1913) | 0.81 in (2023) |
| September 23 | 89.1°F (2007) | 23.0°F (1913) | 1.04 in (1964) |
| September 24 | 84.9°F (1990) | 25.0°F (1942) | 2.48 in (1973) |
| September 25 | 89.1°F (1938) | 21.9°F (1985) | 0.54 in (2023) |
| September 26 | 87.1°F (1974) | 19.0°F (1984) | 1.73 in (1964) |
| September 27 | 89.1°F (1952) | 21.0°F (1935) | 1.12 in (1946) |
| September 28 | 84.9°F (1970) | 21.0°F (1942) | 1.15 in (2013) |
| September 29 | 90.0°F (2025) | 19.0°F (1984) | 0.92 in (1965) |
| September 30 | 89.1°F (2025) | 21.9°F (1934) | 0.90 in (1981) |