September weather in Biggsville, IL
The average temperature in Biggsville in September is 66.9°F (56.3°F–77.5°F). Average precipitation: 3.62 inches.
September is a fall month in Biggsville, and is warmer than the annual average of 51.9°F. Daily temperatures swing about 21.2°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
77.5°F
Avg Low
56.3°F
Precipitation
3.62 in
Daylight
12h 15m
September records in Biggsville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2012) | 51.1°F (2009) | 3.18 in (1980) |
| September 2 | 98.1°F (2011) | 42.1°F (1946) | 2.74 in (2012) |
| September 3 | 98.1°F (2000) | 48.9°F (1946) | 1.11 in (1970) |
| September 4 | 93.9°F (1947) | 48.0°F (2024) | 2.39 in (2011) |
| September 5 | 93.0°F (2012) | 48.9°F (1997) | 2.20 in (1971) |
| September 6 | 95.0°F (1939) | 46.9°F (2025) | 1.51 in (1989) |
| September 7 | 97.0°F (1939) | 45.0°F (2025) | 1.85 in (2018) |
| September 8 | 93.0°F (2013) | 42.1°F (2024) | 2.60 in (2016) |
| September 9 | 91.9°F (1947) | 44.1°F (2024) | 1.30 in (1962) |
| September 10 | 99.0°F (2013) | 44.1°F (1943) | 2.62 in (2014) |
| September 11 | 97.0°F (2013) | 43.0°F (1940) | 1.50 in (2022) |
| September 12 | 95.0°F (1939) | 39.0°F (1940) | 1.82 in (2020) |
| September 13 | 96.1°F (1939) | 41.0°F (2014) | 2.02 in (2008) |
| September 14 | 98.1°F (1939) | 41.0°F (2014) | 4.15 in (1961) |
| September 15 | 98.1°F (1939) | 39.9°F (2014) | 1.51 in (1967) |
| September 16 | 91.0°F (2025) | 42.1°F (2014) | 1.53 in (1983) |
| September 17 | 91.9°F (1997) | 41.0°F (1943) | 1.17 in (1997) |
| September 18 | 93.9°F (2025) | 42.1°F (1943) | 1.35 in (1985) |
| September 19 | 90.0°F (1940) | 39.9°F (1991) | 3.07 in (1983) |
| September 20 | 91.9°F (2013) | 33.1°F (2011) | 3.24 in (1950) |
| September 21 | 93.9°F (2022) | 30.0°F (1991) | 3.95 in (1947) |
| September 22 | 91.0°F (2016) | 32.0°F (1991) | 2.21 in (1968) |
| September 23 | 93.9°F (2017) | 33.1°F (1995) | 1.33 in (1959) |
| September 24 | 93.9°F (2017) | 33.1°F (1995) | 2.04 in (1961) |
| September 25 | 93.9°F (2017) | 33.1°F (1942) | 1.80 in (1984) |
| September 26 | 90.0°F (2017) | 30.9°F (1942) | 2.29 in (1976) |
| September 27 | 88.0°F (1998) | 35.1°F (1940) | 2.05 in (1964) |
| September 28 | 90.0°F (1939) | 28.9°F (1942) | 2.95 in (2019) |
| September 29 | 86.0°F (2025) | 34.0°F (1942) | 1.02 in (1945) |
| September 30 | 91.0°F (2023) | 34.0°F (1947) | 1.20 in (1955) |