September weather in Garner, IA
The average temperature in Garner in September is 61.9°F (50.3°F–73.4°F). Average precipitation: 3.21 inches.
September is a fall month in Garner, and is warmer than the annual average of 45.5°F. Daily temperatures swing about 23.1°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
73.4°F
Avg Low
50.3°F
Precipitation
3.21 in
Daylight
12h 17m
September records in Garner
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1960) | 32.0°F (1949) | 1.89 in (1906) |
| September 2 | 97.0°F (1925) | 41.0°F (1914) | 1.99 in (1933) |
| September 3 | 95.0°F (1925) | 34.0°F (1974) | 1.05 in (1933) |
| September 4 | 98.1°F (1925) | 39.0°F (1902) | 1.40 in (1968) |
| September 5 | 98.1°F (1913) | 36.0°F (1909) | 3.89 in (1985) |
| September 6 | 100.9°F (1922) | 39.9°F (1956) | 2.22 in (1927) |
| September 7 | 100.0°F (1939) | 37.0°F (1986) | 2.94 in (1938) |
| September 8 | 100.0°F (1947) | 34.0°F (1986) | 5.30 in (1964) |
| September 9 | 99.0°F (1947) | 35.1°F (1910) | 1.98 in (1901) |
| September 10 | 98.1°F (1931) | 35.1°F (1917) | 1.28 in (1918) |
| September 11 | 97.0°F (1948) | 33.1°F (1955) | 2.33 in (1900) |
| September 12 | 97.0°F (1939) | 30.0°F (1902) | 2.28 in (1938) |
| September 13 | 98.1°F (1939) | 27.0°F (1902) | 2.37 in (1938) |
| September 14 | 99.0°F (1939) | 32.0°F (1949) | 2.50 in (1928) |
| September 15 | 98.1°F (1939) | 30.9°F (1916) | 2.36 in (1936) |
| September 16 | 95.0°F (1955) | 33.1°F (1934) | 2.10 in (2016) |
| September 17 | 93.9°F (1955) | 28.0°F (1916) | 1.65 in (1927) |
| September 18 | 95.0°F (1948) | 27.0°F (1929) | 2.20 in (1942) |
| September 19 | 97.0°F (1948) | 30.9°F (1991) | 2.12 in (1965) |
| September 20 | 93.9°F (1984) | 26.1°F (1897) | 2.75 in (1923) |
| September 21 | 89.1°F (1898) | 30.0°F (1918) | 4.76 in (1983) |
| September 22 | 93.9°F (1937) | 24.1°F (1913) | 1.94 in (1980) |
| September 23 | 93.0°F (1938) | 28.0°F (1995) | 1.00 in (1997) |
| September 24 | 93.0°F (1983) | 28.0°F (1942) | 1.30 in (2008) |
| September 25 | 91.0°F (1956) | 27.0°F (1926) | 3.30 in (2005) |
| September 26 | 86.0°F (1923) | 25.0°F (1984) | 4.31 in (1973) |
| September 27 | 90.0°F (1956) | 28.0°F (1942) | 1.66 in (1965) |
| September 28 | 90.0°F (1898) | 21.9°F (1942) | 2.05 in (1901) |
| September 29 | 89.1°F (1897) | 19.9°F (1899) | 1.28 in (1973) |
| September 30 | 91.0°F (1952) | 21.0°F (1899) | 3.85 in (1925) |