September weather in Alexander, IA
The average temperature in Alexander in September is 63.6°F (50.9°F–76.3°F). Average precipitation: 3.13 inches.
September is a fall month in Alexander, and is warmer than the annual average of 47°F. Daily temperatures swing about 25.4°F between overnight low and afternoon high. Expect about 7 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
50.9°F
Precipitation
3.13 in
Daylight
12h 16m
September records in Alexander
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1953) | 32.0°F (1949) | 1.60 in (1969) |
| September 2 | 95.0°F (1947) | 35.1°F (1946) | 1.46 in (1959) |
| September 3 | 95.0°F (1947) | 32.0°F (1974) | 1.06 in (2018) |
| September 4 | 96.1°F (1947) | 39.0°F (1974) | 2.15 in (1968) |
| September 5 | 96.1°F (2012) | 35.1°F (1962) | 1.81 in (1985) |
| September 6 | 95.0°F (1970) | 37.9°F (1988) | 1.97 in (1995) |
| September 7 | 96.1°F (1971) | 35.1°F (1986) | 1.02 in (1965) |
| September 8 | 97.0°F (1978) | 32.0°F (1986) | 1.81 in (1997) |
| September 9 | 96.1°F (1947) | 36.0°F (1986) | 1.87 in (2020) |
| September 10 | 99.0°F (2013) | 35.1°F (1948) | 1.48 in (2001) |
| September 11 | 98.1°F (2000) | 34.0°F (1955) | 1.73 in (2003) |
| September 12 | 91.9°F (2012) | 32.0°F (1975) | 0.85 in (1951) |
| September 13 | 93.9°F (1998) | 32.0°F (1974) | 2.25 in (1955) |
| September 14 | 91.0°F (1998) | 32.0°F (1949) | 1.00 in (1967) |
| September 15 | 93.0°F (1955) | 32.0°F (2007) | 1.22 in (1987) |
| September 16 | 91.0°F (1948) | 30.0°F (1984) | 1.76 in (2016) |
| September 17 | 91.9°F (2018) | 32.0°F (1980) | 0.85 in (1968) |
| September 18 | 93.9°F (1947) | 30.9°F (1973) | 0.61 in (1960) |
| September 19 | 97.0°F (1948) | 33.1°F (1991) | 1.27 in (1965) |
| September 20 | 91.9°F (1984) | 30.0°F (1962) | 5.74 in (1983) |
| September 21 | 91.9°F (2018) | 30.0°F (1982) | 2.60 in (1950) |
| September 22 | 93.9°F (2016) | 25.0°F (1974) | 1.32 in (1959) |
| September 23 | 86.0°F (1945) | 27.0°F (1974) | 3.82 in (2016) |
| September 24 | 88.0°F (2007) | 30.0°F (1983) | 1.17 in (1977) |
| September 25 | 93.0°F (2017) | 33.1°F (1946) | 1.98 in (2009) |
| September 26 | 87.1°F (1956) | 21.9°F (1984) | 2.02 in (2005) |
| September 27 | 89.1°F (1956) | 30.0°F (1989) | 1.54 in (1986) |
| September 28 | 89.1°F (1956) | 26.1°F (1961) | 1.17 in (1974) |
| September 29 | 86.0°F (1983) | 21.0°F (1984) | 1.21 in (1972) |
| September 30 | 90.0°F (1952) | 24.1°F (1984) | 1.59 in (1961) |