September weather in Bloomington, WI
The average temperature in Bloomington in September is 61.9°F (51.6°F–72.2°F). Average precipitation: 4.03 inches.
September is a fall month in Bloomington, and is warmer than the annual average of 46.3°F. Daily temperatures swing about 20.6°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
72.2°F
Avg Low
51.6°F
Precipitation
4.03 in
Daylight
12h 16m
September records in Bloomington
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1913) | 37.9°F (1909) | 2.25 in (2018) |
| September 2 | 98.1°F (1913) | 39.9°F (1946) | 2.50 in (1961) |
| September 3 | 99.0°F (1937) | 39.0°F (1974) | 2.75 in (1934) |
| September 4 | 98.1°F (1893) | 39.0°F (1902) | 1.70 in (1958) |
| September 5 | 93.9°F (1922) | 39.0°F (1962) | 2.41 in (2012) |
| September 6 | 99.0°F (1922) | 39.9°F (1962) | 1.75 in (1970) |
| September 7 | 100.0°F (1939) | 37.9°F (1986) | 1.65 in (1965) |
| September 8 | 96.1°F (1922) | 39.9°F (1986) | 3.40 in (1941) |
| September 9 | 98.1°F (1955) | 37.9°F (1924) | 1.50 in (1927) |
| September 10 | 95.0°F (1931) | 34.0°F (1917) | 2.85 in (1971) |
| September 11 | 96.1°F (1931) | 35.1°F (1917) | 2.15 in (1972) |
| September 12 | 93.9°F (1931) | 30.0°F (1902) | 4.50 in (2019) |
| September 13 | 96.1°F (1939) | 30.0°F (1902) | 5.75 in (1961) |
| September 14 | 98.1°F (1939) | 30.9°F (1902) | 1.93 in (1967) |
| September 15 | 99.0°F (1939) | 33.1°F (2007) | 2.56 in (1931) |
| September 16 | 91.9°F (1931) | 26.1°F (2011) | 2.35 in (1913) |
| September 17 | 91.0°F (1925) | 34.0°F (1903) | 3.79 in (1907) |
| September 18 | 93.9°F (1955) | 30.0°F (1903) | 1.45 in (1942) |
| September 19 | 91.9°F (1948) | 34.0°F (1991) | 3.94 in (2019) |
| September 20 | 97.0°F (1903) | 30.0°F (1896) | 3.10 in (2018) |
| September 21 | 91.0°F (1908) | 33.1°F (1991) | 1.32 in (2001) |
| September 22 | 95.0°F (1941) | 28.0°F (1974) | 1.49 in (1988) |
| September 23 | 91.0°F (1930) | 30.0°F (1995) | 1.30 in (1946) |
| September 24 | 91.0°F (2017) | 28.9°F (1989) | 2.11 in (1910) |
| September 25 | 88.0°F (1984) | 26.1°F (1942) | 1.97 in (1981) |
| September 26 | 88.0°F (2017) | 27.0°F (1926) | 1.94 in (2017) |
| September 27 | 88.0°F (1954) | 30.0°F (1942) | 2.01 in (1915) |
| September 28 | 90.0°F (1952) | 25.0°F (1942) | 0.80 in (1945) |
| September 29 | 91.9°F (1953) | 27.0°F (1949) | 2.12 in (2002) |
| September 30 | 87.1°F (1897) | 19.9°F (1899) | 1.46 in (1925) |