August weather in St. Charles, MI
The average temperature in St. Charles in August is °F (°F–°F). Average precipitation: 3.93 inches.
August is a summer month in St. Charles, and is cooler than the annual average of 0°F. Expect about 9 days with precipitation. Daylight averages about 13h 47m.
Avg High
°F
Avg Low
°F
Precipitation
3.93 in
Daylight
13h 47m
August records in St. Charles
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | — | — | 0.63 in (2013) |
| August 2 | — | — | 2.18 in (1934) |
| August 3 | — | — | 1.05 in (2015) |
| August 4 | — | — | 1.10 in (2022) |
| August 5 | — | — | 0.29 in (2014) |
| August 6 | — | — | 0.10 in (2024) |
| August 7 | — | — | 1.80 in (2023) |
| August 8 | — | — | 0.79 in (2021) |
| August 9 | — | — | 3.29 in (2009) |
| August 10 | — | — | 2.09 in (2012) |
| August 11 | — | — | 5.35 in (2012) |
| August 12 | — | — | 1.64 in (2014) |
| August 13 | — | — | 1.21 in (2025) |
| August 14 | — | — | 0.28 in (2011) |
| August 15 | — | — | 1.89 in (2023) |
| August 16 | — | — | 1.80 in (2016) |
| August 17 | — | — | 0.40 in (2024) |
| August 18 | — | — | 1.39 in (2017) |
| August 19 | — | — | 0.32 in (2007) |
| August 20 | — | — | 0.72 in (2007) |
| August 21 | — | — | 3.77 in (2022) |
| August 22 | — | — | 0.68 in (2018) |
| August 23 | — | — | 0.36 in (2007) |
| August 24 | — | — | 0.91 in (2008) |
| August 25 | — | — | 1.23 in (2023) |
| August 26 | — | — | 0.42 in (2003) |
| August 27 | — | — | 0.96 in (2018) |
| August 28 | — | — | 1.55 in (2013) |
| August 29 | — | — | 2.42 in (2021) |
| August 30 | — | — | 0.98 in (2007) |
| August 31 | — | — | 0.92 in (2014) |