September weather in Gaastra, MI
The average temperature in Gaastra in September is 54.0°F (40.8°F–67.3°F). Average precipitation: 3.48 inches.
September is a fall month in Gaastra, and is warmer than the annual average of 38.5°F. Daily temperatures swing about 26.5°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
67.3°F
Avg Low
40.8°F
Precipitation
3.48 in
Daylight
12h 18m
September records in Gaastra
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 90.0°F (1937) | 30.0°F (1970) | 1.07 in (1989) |
| September 2 | 93.0°F (1929) | 26.1°F (1976) | 1.76 in (1984) |
| September 3 | 96.1°F (1929) | 26.1°F (1974) | 2.47 in (2015) |
| September 4 | 91.0°F (1929) | 28.9°F (1974) | 1.63 in (1988) |
| September 5 | 91.0°F (2023) | 30.9°F (1976) | 3.52 in (2018) |
| September 6 | 89.1°F (1947) | 26.1°F (1924) | 3.00 in (1922) |
| September 7 | 95.0°F (1976) | 26.1°F (1986) | 1.36 in (2001) |
| September 8 | 95.0°F (1931) | 28.0°F (1944) | 1.35 in (1922) |
| September 9 | 91.0°F (1931) | 27.0°F (2006) | 1.34 in (1980) |
| September 10 | 93.9°F (1931) | 21.9°F (1967) | 2.74 in (2025) |
| September 11 | 93.9°F (1931) | 26.1°F (1965) | 1.87 in (2014) |
| September 12 | 93.9°F (1998) | 25.0°F (2014) | 1.60 in (1922) |
| September 13 | 90.0°F (1939) | 21.9°F (1963) | 1.32 in (2020) |
| September 14 | 91.9°F (1927) | 25.0°F (1963) | 2.00 in (1941) |
| September 15 | 91.0°F (1939) | 21.9°F (1964) | 1.83 in (1967) |
| September 16 | 87.1°F (1939) | 19.9°F (2011) | 2.99 in (2010) |
| September 17 | 86.0°F (1948) | 21.0°F (2011) | 1.14 in (1955) |
| September 18 | 86.0°F (1955) | 24.1°F (2011) | 2.24 in (1942) |
| September 19 | 84.0°F (1940) | 25.0°F (2012) | 1.35 in (1997) |
| September 20 | 84.0°F (1940) | 19.9°F (1973) | 2.94 in (1983) |
| September 21 | 84.9°F (1941) | 23.0°F (1956) | 2.28 in (1980) |
| September 22 | 91.0°F (1937) | 24.1°F (1974) | 0.90 in (1931) |
| September 23 | 91.0°F (1937) | 18.0°F (1974) | 0.86 in (2001) |
| September 24 | 86.0°F (2017) | 18.0°F (1976) | 2.20 in (2010) |
| September 25 | 86.0°F (2017) | 19.9°F (1947) | 1.26 in (1984) |
| September 26 | 84.0°F (1923) | 21.9°F (1926) | 1.82 in (1972) |
| September 27 | 81.0°F (1923) | 18.0°F (1965) | 2.24 in (2020) |
| September 28 | 82.0°F (1987) | 18.0°F (1976) | 0.65 in (1929) |
| September 29 | 86.0°F (1922) | 19.9°F (1962) | 0.76 in (1986) |
| September 30 | 80.1°F (2025) | 19.9°F (1964) | 1.47 in (1985) |