September weather in Downs, IL
The average temperature in Downs in September is °F (°F–°F). Average precipitation: 3.11 inches.
September is a fall month in Downs, and is cooler than the annual average of 0°F. Expect about 7 days with precipitation. Daylight averages about 12h 15m.
Avg High
°F
Avg Low
°F
Precipitation
3.11 in
Daylight
12h 15m
September records in Downs
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 86.0°F (1979) | 57.0°F (1978) | 2.68 in (2003) |
| September 2 | 88.0°F (1979) | 61.0°F (1978) | 2.51 in (1972) |
| September 3 | 89.1°F (1978) | 62.1°F (1978) | 2.11 in (1993) |
| September 4 | 89.1°F (1978) | 53.1°F (1978) | 1.51 in (1961) |
| September 5 | 87.1°F (1978) | 55.0°F (1978) | 2.20 in (2008) |
| September 6 | 87.1°F (1978) | 59.0°F (1978) | 1.63 in (1971) |
| September 7 | 91.9°F (1978) | 52.0°F (1979) | 0.44 in (2008) |
| September 8 | 95.0°F (1978) | 46.9°F (1979) | 1.17 in (2016) |
| September 9 | 95.0°F (1978) | 50.0°F (1979) | 2.95 in (1997) |
| September 10 | 95.0°F (1978) | 59.0°F (1979) | 1.80 in (1962) |
| September 11 | 93.0°F (1978) | 55.9°F (1979) | 0.92 in (1986) |
| September 12 | 90.0°F (1978) | 63.0°F (1979) | 1.88 in (1961) |
| September 13 | 91.9°F (1978) | 62.1°F (1979) | 3.45 in (1977) |
| September 14 | 86.0°F (1978) | 48.0°F (1979) | 3.60 in (1972) |
| September 15 | 84.0°F (1978) | 39.0°F (1979) | 2.78 in (1965) |
| September 16 | 88.0°F (1978) | 48.9°F (1979) | 1.46 in (1965) |
| September 17 | 88.0°F (1978) | 51.1°F (1979) | 3.73 in (1960) |
| September 18 | 90.0°F (1978) | 55.9°F (1979) | 0.94 in (1968) |
| September 19 | 96.1°F (1978) | 57.9°F (1979) | 2.34 in (2015) |
| September 20 | 93.9°F (1978) | 50.0°F (1979) | 7.12 in (1986) |
| September 21 | 66.9°F (1979) | 46.9°F (1979) | 1.14 in (2023) |
| September 22 | 71.1°F (1979) | 44.1°F (1979) | 3.24 in (1970) |
| September 23 | 73.0°F (1978) | 42.1°F (1978) | 1.78 in (1985) |
| September 24 | 79.0°F (1978) | 44.1°F (1978) | 1.78 in (1961) |
| September 25 | 84.0°F (1979) | 48.9°F (1979) | 1.26 in (1961) |
| September 26 | 84.9°F (1979) | 44.1°F (1978) | 1.52 in (1971) |
| September 27 | 84.9°F (1979) | 52.0°F (1978) | 1.48 in (1959) |
| September 28 | 84.0°F (1979) | 42.1°F (1978) | 0.47 in (2020) |
| September 29 | 84.0°F (1979) | 46.9°F (1978) | 1.16 in (1972) |
| September 30 | 78.1°F (1978) | 52.0°F (1978) | 1.37 in (1986) |