September weather in Ainsworth, IA
The average temperature in Ainsworth in September is 64.3°F (51.4°F–77.3°F). Average precipitation: 3.60 inches.
September is a fall month in Ainsworth, and is warmer than the annual average of 49.3°F. Daily temperatures swing about 25.9°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
77.3°F
Avg Low
51.4°F
Precipitation
3.60 in
Daylight
12h 16m
September records in Ainsworth
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1953) | 37.9°F (1949) | 2.94 in (2010) |
| September 2 | 99.0°F (1953) | 41.0°F (1946) | 1.73 in (2018) |
| September 3 | 99.0°F (1925) | 39.9°F (1952) | 2.46 in (1917) |
| September 4 | 100.0°F (1925) | 41.0°F (1902) | 2.50 in (1980) |
| September 5 | 100.9°F (1899) | 41.0°F (2013) | 3.05 in (1916) |
| September 6 | 100.0°F (1899) | 39.9°F (2025) | 3.65 in (1923) |
| September 7 | 99.0°F (1939) | 37.9°F (2025) | 1.63 in (1915) |
| September 8 | 97.0°F (1947) | 39.0°F (2024) | 1.87 in (1894) |
| September 9 | 102.0°F (1933) | 39.0°F (2024) | 2.21 in (1989) |
| September 10 | 100.0°F (2013) | 39.9°F (1967) | 4.05 in (1992) |
| September 11 | 98.1°F (1936) | 37.9°F (1917) | 3.75 in (1925) |
| September 12 | 96.1°F (1927) | 34.0°F (1902) | 1.65 in (1928) |
| September 13 | 98.1°F (1897) | 30.0°F (1902) | 2.03 in (2008) |
| September 14 | 99.0°F (1939) | 37.0°F (1923) | 2.62 in (2003) |
| September 15 | 99.0°F (1927) | 32.0°F (2007) | 3.35 in (1926) |
| September 16 | 96.1°F (1931) | 32.0°F (2007) | 1.52 in (1921) |
| September 17 | 98.1°F (1927) | 34.0°F (1900) | 2.16 in (1987) |
| September 18 | 95.0°F (1955) | 32.0°F (1929) | 3.28 in (1978) |
| September 19 | 97.0°F (1948) | 35.1°F (1938) | 2.53 in (2015) |
| September 20 | 95.0°F (1940) | 30.9°F (1896) | 2.30 in (1965) |
| September 21 | 93.9°F (2022) | 33.1°F (2006) | 3.29 in (1965) |
| September 22 | 96.1°F (1930) | 30.0°F (1913) | 1.86 in (1946) |
| September 23 | 91.0°F (1938) | 28.0°F (1983) | 2.00 in (2000) |
| September 24 | 93.0°F (2017) | 30.9°F (1942) | 1.28 in (1911) |
| September 25 | 90.0°F (1920) | 30.9°F (1928) | 1.40 in (1981) |
| September 26 | 91.0°F (1897) | 28.9°F (1926) | 2.65 in (1933) |
| September 27 | 90.0°F (1954) | 28.9°F (1928) | 1.80 in (1923) |
| September 28 | 100.0°F (1953) | 23.0°F (1942) | 2.35 in (1911) |
| September 29 | 95.0°F (1953) | 27.0°F (1899) | 1.80 in (1955) |
| September 30 | 93.0°F (1952) | 24.1°F (1899) | 2.62 in (1923) |