September weather in Long Prairie, MN
The average temperature in Long Prairie in September is 57.3°F (46.3°F–68.3°F). Average precipitation: 3.29 inches.
September is a fall month in Long Prairie, and is warmer than the annual average of 40.1°F. Daily temperatures swing about 22°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
68.3°F
Avg Low
46.3°F
Precipitation
3.29 in
Daylight
12h 18m
September records in Long Prairie
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1894) | 30.9°F (1909) | 1.92 in (1989) |
| September 2 | 93.9°F (1983) | 33.1°F (1893) | 1.62 in (1996) |
| September 3 | 93.9°F (1960) | 28.9°F (1974) | 2.17 in (1957) |
| September 4 | 100.0°F (2023) | 32.0°F (1918) | 2.64 in (1989) |
| September 5 | 95.0°F (1945) | 32.0°F (1909) | 2.18 in (1895) |
| September 6 | 93.0°F (1960) | 35.1°F (1917) | 1.29 in (2004) |
| September 7 | 95.0°F (1976) | 32.0°F (1956) | 2.51 in (1964) |
| September 8 | 95.0°F (1908) | 32.0°F (1956) | 2.50 in (1938) |
| September 9 | 93.9°F (1961) | 30.0°F (1898) | 2.74 in (2013) |
| September 10 | 93.0°F (1906) | 28.0°F (1898) | 1.48 in (1913) |
| September 11 | 91.9°F (1905) | 30.0°F (1894) | 1.40 in (1950) |
| September 12 | 89.1°F (1897) | 28.0°F (1955) | 2.97 in (1903) |
| September 13 | 91.0°F (1939) | 30.0°F (1902) | 1.10 in (2019) |
| September 14 | 91.9°F (1939) | 30.0°F (1956) | 1.97 in (1941) |
| September 15 | 91.0°F (1939) | 26.1°F (1964) | 1.48 in (2005) |
| September 16 | 93.0°F (1948) | 23.0°F (1918) | 2.62 in (1896) |
| September 17 | 91.0°F (1908) | 23.0°F (1959) | 1.12 in (1968) |
| September 18 | 90.0°F (1908) | 26.1°F (1971) | 1.18 in (1905) |
| September 19 | 93.9°F (1908) | 25.0°F (1896) | 1.10 in (1957) |
| September 20 | 91.0°F (1984) | 24.1°F (1973) | 2.45 in (1906) |
| September 21 | 90.0°F (1908) | 24.1°F (1904) | 1.18 in (1961) |
| September 22 | 89.1°F (1908) | 16.0°F (1913) | 1.35 in (1895) |
| September 23 | 87.1°F (1937) | 27.0°F (1976) | 1.55 in (1968) |
| September 24 | 91.0°F (1937) | 27.0°F (1947) | 2.14 in (1984) |
| September 25 | 84.0°F (1897) | 19.9°F (1947) | 3.01 in (1906) |
| September 26 | 84.9°F (1974) | 21.0°F (1939) | 2.27 in (1998) |
| September 27 | 93.9°F (1956) | 16.0°F (1893) | 0.99 in (1973) |
| September 28 | 88.0°F (1894) | 21.0°F (1893) | 0.62 in (1904) |
| September 29 | 89.1°F (1897) | 12.9°F (1917) | 1.05 in (1988) |
| September 30 | 87.1°F (2025) | 17.1°F (1939) | 2.40 in (1995) |