September weather in Koshkonong, MO
The average temperature in Koshkonong in September is 69.5°F (56.7°F–82.4°F). Average precipitation: 3.64 inches.
September is a fall month in Koshkonong, and is warmer than the annual average of 57.4°F. Daily temperatures swing about 25.7°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
82.4°F
Avg Low
56.7°F
Precipitation
3.64 in
Daylight
12h 13m
September records in Koshkonong
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1947) | 44.1°F (1949) | 4.00 in (1910) |
| September 2 | 102.9°F (1954) | 45.0°F (1949) | 2.10 in (1982) |
| September 3 | 109.0°F (1954) | 43.0°F (1952) | 2.60 in (1988) |
| September 4 | 107.1°F (1954) | 42.1°F (1974) | 2.20 in (2008) |
| September 5 | 107.1°F (1954) | 43.0°F (1953) | 2.84 in (2009) |
| September 6 | 105.1°F (1925) | 44.1°F (1953) | 1.86 in (1910) |
| September 7 | 105.1°F (1947) | 42.1°F (1988) | 0.95 in (1958) |
| September 8 | 105.1°F (1947) | 39.9°F (1956) | 1.91 in (2018) |
| September 9 | 104.0°F (1925) | 41.0°F (1956) | 1.75 in (2001) |
| September 10 | 106.0°F (1925) | 36.0°F (1976) | 2.05 in (2010) |
| September 11 | 100.9°F (1912) | 37.0°F (1976) | 3.40 in (1914) |
| September 12 | 100.0°F (1939) | 37.0°F (1922) | 1.48 in (1983) |
| September 13 | 100.9°F (1939) | 39.0°F (1922) | 2.00 in (1945) |
| September 14 | 102.0°F (1939) | 42.1°F (1922) | 1.28 in (1933) |
| September 15 | 100.9°F (1954) | 41.0°F (1979) | 1.65 in (2005) |
| September 16 | 102.0°F (1954) | 37.0°F (1916) | 2.36 in (1996) |
| September 17 | 111.0°F (2001) | 39.9°F (1984) | 2.43 in (1968) |
| September 18 | 99.0°F (1972) | 32.0°F (1981) | 1.41 in (1968) |
| September 19 | 99.0°F (1954) | 39.0°F (1938) | 2.70 in (1970) |
| September 20 | 100.0°F (1954) | 37.0°F (1938) | 1.65 in (1992) |
| September 21 | 99.0°F (1955) | 37.0°F (1927) | 1.67 in (1919) |
| September 22 | 97.0°F (1955) | 33.1°F (1982) | 1.70 in (1908) |
| September 23 | 96.1°F (1931) | 33.1°F (1995) | 4.40 in (2006) |
| September 24 | 96.1°F (1939) | 33.1°F (1989) | 2.20 in (1931) |
| September 25 | 97.0°F (1939) | 34.0°F (1995) | 4.40 in (1993) |
| September 26 | 95.0°F (1956) | 36.0°F (1975) | 2.40 in (1993) |
| September 27 | 99.0°F (1953) | 34.0°F (1940) | 2.70 in (1996) |
| September 28 | 99.0°F (1953) | 34.0°F (1909) | 2.47 in (1906) |
| September 29 | 100.9°F (1953) | 30.0°F (1967) | 3.20 in (1927) |
| September 30 | 93.9°F (1904) | 30.9°F (1984) | 2.84 in (1988) |