August weather in South Lyon, MI
The average temperature in South Lyon in August is 68.5°F (57.9°F–79.2°F). Average precipitation: 3.34 inches.
August is a summer month in South Lyon, and is warmer than the annual average of 47.1°F. Daily temperatures swing about 21.3°F between overnight low and afternoon high. Daylight averages about 13h 44m. For travel, August is one of the best months of the year to visit.
Avg High
79.2°F
Avg Low
57.9°F
Precipitation
3.34 in
Daylight
13h 44m
August records in South Lyon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 89.1°F (2011) | 51.1°F (2014) | 1.23 in (2018) |
| August 2 | 88.0°F (2011) | 52.0°F (2013) | 0.64 in (2020) |
| August 3 | 89.1°F (2012) | 52.0°F (2009) | 1.15 in (2015) |
| August 4 | 93.0°F (2012) | 53.1°F (2013) | 2.26 in (2022) |
| August 5 | 90.0°F (2016) | 51.1°F (2013) | 0.27 in (2014) |
| August 6 | 89.1°F (2018) | 50.0°F (2012) | 0.57 in (2024) |
| August 7 | 86.0°F (2022) | 50.0°F (2020) | 1.75 in (2018) |
| August 8 | 89.1°F (2012) | 50.0°F (2017) | 0.28 in (2008) |
| August 9 | 88.0°F (2025) | 50.0°F (2017) | 1.81 in (2009) |
| August 10 | 91.0°F (2009) | 48.9°F (2008) | 2.48 in (2012) |
| August 11 | 91.9°F (2016) | 48.0°F (2008) | 0.71 in (2023) |
| August 12 | 91.9°F (2016) | 51.1°F (2022) | 3.56 in (2021) |
| August 13 | 91.9°F (2016) | 51.1°F (2022) | 1.20 in (2013) |
| August 14 | 84.9°F (2010) | 46.0°F (2013) | 0.98 in (2011) |
| August 15 | 86.0°F (2010) | 44.1°F (2014) | 0.33 in (2023) |
| August 16 | 88.0°F (2010) | 44.1°F (2014) | 1.84 in (2016) |
| August 17 | 89.1°F (2009) | 48.9°F (2013) | 0.30 in (2025) |
| August 18 | 84.9°F (2015) | 46.0°F (2012) | 0.47 in (2023) |
| August 19 | 87.1°F (2008) | 48.0°F (2023) | 0.44 in (2024) |
| August 20 | 87.1°F (2021) | 48.0°F (2008) | 0.73 in (2015) |
| August 21 | 88.0°F (2021) | 46.0°F (2024) | 0.80 in (2011) |
| August 22 | 87.1°F (2017) | 46.9°F (2024) | 0.20 in (2019) |
| August 23 | 90.0°F (2021) | 46.9°F (2024) | 0.15 in (2021) |
| August 24 | 90.0°F (2008) | 44.1°F (2019) | 2.22 in (2023) |
| August 25 | 88.0°F (2011) | 45.0°F (2017) | 0.53 in (2016) |
| August 26 | 88.0°F (2024) | 45.0°F (2017) | 0.15 in (2020) |
| August 27 | 91.0°F (2024) | 45.0°F (2025) | 0.48 in (2014) |
| August 28 | 93.0°F (2024) | 45.0°F (2025) | 3.39 in (2024) |
| August 29 | 90.0°F (2021) | 46.0°F (2025) | 1.60 in (2020) |
| August 30 | 91.0°F (2010) | 43.0°F (2025) | 0.73 in (2021) |
| August 31 | 91.0°F (2010) | 43.0°F (2009) | 0.08 in (2014) |