September weather in Pinckneyville, IL
The average temperature in Pinckneyville in September is °F (°F–°F). Average precipitation: 3.26 inches.
September is a fall month in Pinckneyville, and is cooler than the annual average of 0°F. Expect about 6 days with precipitation. Daylight averages about 12h 14m.
Avg High
°F
Avg Low
°F
Precipitation
3.26 in
Daylight
12h 14m
September records in Pinckneyville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | — | — | 2.65 in (1982) |
| September 2 | — | — | 1.42 in (1980) |
| September 3 | — | — | 1.86 in (1993) |
| September 4 | — | — | 2.30 in (1991) |
| September 5 | — | — | 1.42 in (2008) |
| September 6 | — | — | 0.39 in (2014) |
| September 7 | — | — | 2.08 in (1992) |
| September 8 | — | — | 2.60 in (2018) |
| September 9 | — | — | 3.11 in (2018) |
| September 10 | — | — | 1.64 in (2016) |
| September 11 | — | — | 1.98 in (1984) |
| September 12 | — | — | 1.50 in (1988) |
| September 13 | — | — | 0.40 in (2024) |
| September 14 | — | — | 0.89 in (2024) |
| September 15 | — | — | 1.40 in (1993) |
| September 16 | — | — | 2.91 in (1996) |
| September 17 | — | — | 3.20 in (2016) |
| September 18 | — | — | 2.20 in (1986) |
| September 19 | — | — | 2.66 in (1988) |
| September 20 | — | — | 1.42 in (2005) |
| September 21 | — | — | 1.52 in (1992) |
| September 22 | — | — | 1.02 in (2025) |
| September 23 | — | — | 3.18 in (1984) |
| September 24 | — | — | 2.70 in (1993) |
| September 25 | — | — | 1.47 in (2018) |
| September 26 | — | — | 1.70 in (1993) |
| September 27 | — | — | 2.17 in (1996) |
| September 28 | — | — | 1.33 in (2024) |
| September 29 | — | — | 1.84 in (1974) |
| September 30 | — | — | 0.98 in (2015) |