September weather in Winnebago, MN
The average temperature in Winnebago in September is 62.6°F (51.4°F–73.7°F). Average precipitation: 3.47 inches.
September is a fall month in Winnebago, and is warmer than the annual average of 45.6°F. Daily temperatures swing about 22.3°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
73.7°F
Avg Low
51.4°F
Precipitation
3.47 in
Daylight
12h 17m
September records in Winnebago
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1913) | 39.9°F (1909) | 1.85 in (1930) |
| September 2 | 99.0°F (1925) | 39.9°F (1974) | 1.47 in (1966) |
| September 3 | 97.0°F (1925) | 35.1°F (1974) | 3.30 in (1926) |
| September 4 | 99.0°F (1925) | 35.1°F (1974) | 1.08 in (1929) |
| September 5 | 98.1°F (1913) | 39.0°F (1935) | 1.84 in (2018) |
| September 6 | 98.1°F (1922) | 37.9°F (1956) | 1.27 in (2020) |
| September 7 | 100.0°F (1931) | 37.0°F (1956) | 1.60 in (1917) |
| September 8 | 97.0°F (1931) | 39.0°F (1956) | 4.10 in (1964) |
| September 9 | 97.0°F (1931) | 35.1°F (1924) | 2.95 in (1946) |
| September 10 | 100.0°F (1931) | 35.1°F (1917) | 2.43 in (1951) |
| September 11 | 95.0°F (1931) | 37.0°F (1917) | 1.54 in (2019) |
| September 12 | 93.9°F (2012) | 36.0°F (2007) | 1.67 in (2003) |
| September 13 | 97.0°F (1939) | 34.0°F (2014) | 2.06 in (1993) |
| September 14 | 98.1°F (1939) | 35.1°F (1963) | 2.50 in (1991) |
| September 15 | 99.0°F (1939) | 30.0°F (2007) | 4.86 in (2004) |
| September 16 | 93.9°F (1955) | 33.1°F (1937) | 2.12 in (1921) |
| September 17 | 95.0°F (1955) | 30.0°F (1916) | 1.92 in (2006) |
| September 18 | 95.0°F (1955) | 28.0°F (1929) | 2.44 in (1926) |
| September 19 | 93.9°F (1925) | 32.0°F (1991) | 2.12 in (1905) |
| September 20 | 93.0°F (1984) | 30.9°F (1991) | 2.11 in (1923) |
| September 21 | 95.0°F (1937) | 30.9°F (1934) | 2.12 in (1924) |
| September 22 | 93.0°F (1936) | 26.1°F (1913) | 3.09 in (2016) |
| September 23 | 93.0°F (2017) | 26.1°F (1974) | 6.30 in (2010) |
| September 24 | 89.1°F (2017) | 26.1°F (1942) | 1.88 in (1937) |
| September 25 | 90.0°F (2017) | 28.0°F (1942) | 8.64 in (2005) |
| September 26 | 88.0°F (1956) | 25.0°F (1984) | 2.42 in (1930) |
| September 27 | 88.0°F (1905) | 25.0°F (1984) | 1.27 in (1924) |
| September 28 | 91.0°F (1956) | 21.9°F (1942) | 0.65 in (1975) |
| September 29 | 87.1°F (1956) | 21.9°F (1899) | 1.50 in (1973) |
| September 30 | 89.1°F (2023) | 23.0°F (1899) | 4.15 in (1925) |