September weather in Harrietta, MI
The average temperature in Harrietta in September is °F (°F–°F). Average precipitation: 3.31 inches.
September is a fall month in Harrietta, and is cooler than the annual average of 0°F. Expect about 10 days with precipitation. Daylight averages about 12h 17m.
Avg High
°F
Avg Low
°F
Precipitation
3.31 in
Daylight
12h 17m
September records in Harrietta
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 88.0°F (1921) | 35.1°F (1919) | 2.46 in (1922) |
| September 2 | 84.9°F (1921) | 34.0°F (1920) | 1.25 in (1934) |
| September 3 | 84.9°F (1922) | 37.9°F (1920) | 1.02 in (1970) |
| September 4 | 88.0°F (1921) | 30.9°F (1917) | 2.46 in (1975) |
| September 5 | 87.1°F (1922) | 37.0°F (1919) | 2.38 in (2014) |
| September 6 | 82.0°F (1922) | 37.0°F (1918) | 1.26 in (2014) |
| September 7 | 82.0°F (1921) | 39.0°F (1917) | 2.75 in (1922) |
| September 8 | 90.0°F (1919) | 37.0°F (1917) | 1.57 in (1992) |
| September 9 | 88.0°F (1919) | 30.0°F (1923) | 1.79 in (1965) |
| September 10 | 78.1°F (1920) | 28.0°F (1923) | 2.15 in (1986) |
| September 11 | 78.1°F (1920) | 25.0°F (1917) | 3.70 in (1986) |
| September 12 | 77.0°F (1921) | 39.9°F (1921) | 1.92 in (2019) |
| September 13 | 75.9°F (1920) | 30.9°F (1919) | 2.68 in (1961) |
| September 14 | 86.0°F (1920) | 37.9°F (1923) | 3.18 in (1978) |
| September 15 | 82.9°F (1917) | 28.0°F (1923) | 1.65 in (1920) |
| September 16 | 82.9°F (1917) | 37.9°F (1922) | 2.62 in (1992) |
| September 17 | 82.9°F (1917) | 28.9°F (1922) | 2.62 in (1992) |
| September 18 | 82.9°F (1917) | 37.0°F (1918) | 1.76 in (1950) |
| September 19 | 82.0°F (1917) | 33.1°F (1921) | 1.40 in (1983) |
| September 20 | 79.0°F (1917) | 36.0°F (1918) | 1.43 in (2001) |
| September 21 | 82.9°F (1920) | 30.0°F (1917) | 3.65 in (1947) |
| September 22 | 87.1°F (1920) | 30.9°F (1917) | 1.17 in (1986) |
| September 23 | 84.0°F (1920) | 30.9°F (1917) | 1.60 in (2009) |
| September 24 | 81.0°F (1917) | 27.0°F (1922) | 3.01 in (1984) |
| September 25 | 88.0°F (1920) | 28.9°F (1922) | 1.68 in (1940) |
| September 26 | 79.0°F (1923) | 30.9°F (1918) | 2.33 in (1930) |
| September 27 | 84.9°F (1920) | 37.9°F (1922) | 1.95 in (1944) |
| September 28 | 82.0°F (1923) | 36.0°F (1922) | 2.29 in (1972) |
| September 29 | 80.1°F (1921) | 44.1°F (1920) | 1.35 in (2005) |
| September 30 | 73.0°F (1922) | 28.9°F (1918) | 1.88 in (1961) |