September weather in Westside, IA
The average temperature in Westside in September is 63.2°F (51.7°F–74.8°F). Average precipitation: 3.27 inches.
September is a fall month in Westside, and is warmer than the annual average of 47.4°F. Daily temperatures swing about 23.1°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
74.8°F
Avg Low
51.7°F
Precipitation
3.27 in
Daylight
12h 16m
September records in Westside
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1911) | 39.0°F (1949) | 3.36 in (1926) |
| September 2 | 96.1°F (1937) | 41.0°F (1924) | 1.80 in (1933) |
| September 3 | 102.0°F (2000) | 34.0°F (1974) | 3.03 in (1949) |
| September 4 | 96.1°F (1913) | 36.0°F (1902) | 1.55 in (1929) |
| September 5 | 98.1°F (1913) | 36.0°F (1962) | 2.17 in (1938) |
| September 6 | 102.9°F (1939) | 36.0°F (1909) | 2.48 in (1938) |
| September 7 | 102.0°F (1939) | 37.9°F (1934) | 3.98 in (1965) |
| September 8 | 97.0°F (1947) | 39.9°F (1995) | 3.59 in (1989) |
| September 9 | 99.0°F (1955) | 37.9°F (1943) | 2.99 in (2020) |
| September 10 | 97.0°F (1931) | 37.9°F (1910) | 1.92 in (1972) |
| September 11 | 96.1°F (1895) | 37.0°F (1959) | 5.81 in (1972) |
| September 12 | 97.0°F (1939) | 28.9°F (1902) | 1.80 in (1972) |
| September 13 | 98.1°F (1931) | 28.9°F (1902) | 4.69 in (1978) |
| September 14 | 99.0°F (1939) | 34.0°F (1923) | 1.52 in (1941) |
| September 15 | 99.0°F (1939) | 32.0°F (1916) | 1.08 in (2004) |
| September 16 | 98.1°F (1931) | 32.0°F (1937) | 2.30 in (2016) |
| September 17 | 96.1°F (1895) | 30.0°F (1900) | 1.51 in (1968) |
| September 18 | 97.0°F (1947) | 30.0°F (1901) | 1.26 in (1968) |
| September 19 | 96.1°F (1895) | 28.9°F (1991) | 1.74 in (1931) |
| September 20 | 91.9°F (1940) | 28.9°F (1901) | 2.35 in (1983) |
| September 21 | 96.1°F (2022) | 21.0°F (1918) | 1.50 in (2018) |
| September 22 | 96.1°F (1937) | 24.1°F (1913) | 1.30 in (2006) |
| September 23 | 91.0°F (1938) | 30.0°F (1916) | 1.05 in (1997) |
| September 24 | 90.0°F (1930) | 28.0°F (1942) | 1.56 in (2015) |
| September 25 | 90.0°F (2017) | 28.0°F (1926) | 2.22 in (1931) |
| September 26 | 89.1°F (1956) | 27.0°F (1899) | 4.88 in (1973) |
| September 27 | 91.0°F (1998) | 27.0°F (1942) | 1.26 in (1986) |
| September 28 | 93.0°F (1953) | 21.9°F (1942) | 1.20 in (1901) |
| September 29 | 91.0°F (2021) | 18.0°F (1899) | 1.27 in (2015) |
| September 30 | 93.0°F (2023) | 24.1°F (1956) | 2.05 in (1919) |