September weather in Naplate, IL
The average temperature in Naplate in September is 65.3°F (54.2°F–76.4°F). Average precipitation: 3.23 inches.
September is a fall month in Naplate, and is warmer than the annual average of 50.2°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
76.4°F
Avg Low
54.2°F
Precipitation
3.23 in
Daylight
12h 16m
September records in Naplate
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1953) | 42.1°F (1967) | 4.30 in (1977) |
| September 2 | 100.9°F (1953) | 39.9°F (1909) | 2.28 in (1930) |
| September 3 | 98.1°F (1912) | 42.1°F (1908) | 2.44 in (1961) |
| September 4 | 102.0°F (1925) | 41.0°F (1928) | 2.73 in (1926) |
| September 5 | 102.9°F (1899) | 42.1°F (1974) | 2.48 in (1941) |
| September 6 | 100.9°F (1922) | 39.9°F (1924) | 2.83 in (1989) |
| September 7 | 100.9°F (1939) | 41.0°F (1956) | 3.06 in (1894) |
| September 8 | 99.0°F (1922) | 42.1°F (1932) | 1.79 in (1948) |
| September 9 | 98.1°F (1933) | 39.9°F (1995) | 1.33 in (1976) |
| September 10 | 97.0°F (1897) | 37.9°F (1924) | 2.82 in (1992) |
| September 11 | 98.1°F (1978) | 39.0°F (1929) | 1.84 in (1892) |
| September 12 | 97.0°F (1927) | 37.0°F (1898) | 1.90 in (2000) |
| September 13 | 99.0°F (1897) | 37.9°F (1953) | 1.94 in (1970) |
| September 14 | 100.9°F (1939) | 28.9°F (1923) | 2.07 in (1961) |
| September 15 | 100.0°F (1939) | 35.1°F (1923) | 1.63 in (1925) |
| September 16 | 96.1°F (1927) | 35.1°F (1916) | 1.95 in (1936) |
| September 17 | 97.0°F (1927) | 3.9°F (1951) | 3.73 in (1987) |
| September 18 | 99.0°F (1965) | 34.0°F (1929) | 1.91 in (1978) |
| September 19 | 95.0°F (1908) | 34.0°F (1929) | 1.52 in (2001) |
| September 20 | 95.0°F (1908) | 32.0°F (1937) | 1.76 in (1924) |
| September 21 | 95.0°F (1908) | 35.1°F (1913) | 2.30 in (1947) |
| September 22 | 93.0°F (1895) | 34.0°F (1918) | 1.40 in (2019) |
| September 23 | 95.0°F (2017) | 30.0°F (1995) | 1.89 in (1961) |
| September 24 | 95.0°F (2017) | 28.9°F (1928) | 4.02 in (1926) |
| September 25 | 91.9°F (1908) | 28.9°F (1942) | 2.55 in (1941) |
| September 26 | 95.0°F (2017) | 25.0°F (1928) | 1.75 in (1964) |
| September 27 | 93.0°F (1998) | 28.9°F (1937) | 3.30 in (1936) |
| September 28 | 93.0°F (1953) | 25.0°F (1942) | 4.40 in (2019) |
| September 29 | 98.1°F (1953) | 30.0°F (2018) | 3.25 in (1906) |
| September 30 | 93.9°F (1971) | 26.1°F (1899) | 3.21 in (1896) |