September weather in West Liberty, IA
The average temperature in West Liberty in September is 64.0°F (51.6°F–76.3°F). Average precipitation: 3.45 inches.
September is a fall month in West Liberty, and is warmer than the annual average of 48.9°F. Daily temperatures swing about 24.7°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
76.3°F
Avg Low
51.6°F
Precipitation
3.45 in
Daylight
12h 16m
September records in West Liberty
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1984) | 39.9°F (1949) | 2.22 in (1926) |
| September 2 | 100.0°F (1913) | 39.0°F (1946) | 1.15 in (1935) |
| September 3 | 98.1°F (1913) | 42.1°F (1893) | 0.72 in (1970) |
| September 4 | 99.0°F (1913) | 42.1°F (1928) | 2.01 in (1943) |
| September 5 | 100.9°F (1899) | 39.9°F (1962) | 1.61 in (1958) |
| September 6 | 100.0°F (1922) | 37.9°F (1962) | 3.28 in (2018) |
| September 7 | 100.9°F (1901) | 35.1°F (2025) | 1.98 in (1946) |
| September 8 | 99.0°F (1922) | 37.0°F (2025) | 2.19 in (1941) |
| September 9 | 99.0°F (1955) | 39.0°F (1924) | 2.58 in (1992) |
| September 10 | 100.9°F (2013) | 36.0°F (1910) | 3.47 in (2014) |
| September 11 | 99.0°F (2013) | 33.1°F (1917) | 1.36 in (2022) |
| September 12 | 96.1°F (1897) | 33.1°F (1955) | 2.17 in (1961) |
| September 13 | 100.0°F (1897) | 33.1°F (1902) | 3.30 in (1961) |
| September 14 | 96.1°F (1939) | 32.0°F (1923) | 3.08 in (1998) |
| September 15 | 97.0°F (1927) | 33.1°F (2007) | 2.41 in (1970) |
| September 16 | 95.0°F (1931) | 35.1°F (1937) | 2.02 in (1921) |
| September 17 | 97.0°F (1906) | 35.1°F (1994) | 4.39 in (1970) |
| September 18 | 93.0°F (1955) | 28.0°F (1916) | 2.16 in (1978) |
| September 19 | 96.1°F (1906) | 33.1°F (1916) | 2.30 in (1919) |
| September 20 | 93.9°F (1908) | 30.9°F (1896) | 2.29 in (1965) |
| September 21 | 96.1°F (2022) | 30.9°F (1918) | 2.60 in (1965) |
| September 22 | 93.9°F (1930) | 30.9°F (1953) | 2.17 in (1926) |
| September 23 | 91.9°F (2017) | 30.9°F (2012) | 3.27 in (1902) |
| September 24 | 93.9°F (2017) | 28.9°F (2012) | 2.30 in (1960) |
| September 25 | 91.0°F (1920) | 28.9°F (1928) | 2.40 in (1993) |
| September 26 | 90.0°F (2017) | 28.0°F (1893) | 4.80 in (1930) |
| September 27 | 89.1°F (1954) | 30.0°F (1912) | 1.81 in (1916) |
| September 28 | 96.1°F (1953) | 24.1°F (1942) | 0.90 in (1907) |
| September 29 | 95.0°F (1953) | 28.9°F (1908) | 1.40 in (1986) |
| September 30 | 91.0°F (1952) | 19.9°F (1899) | 2.10 in (1893) |