July weather in South Lyon, MI
The average temperature in South Lyon in July is 70.2°F (58.6°F–81.7°F). Average precipitation: 3.38 inches.
July is a summer month in South Lyon, and is warmer than the annual average of 47.1°F. Daily temperatures swing about 23.1°F between overnight low and afternoon high. Daylight averages about 14h 49m. For travel, July is a comfortable month to visit.
Avg High
81.7°F
Avg Low
58.6°F
Precipitation
3.38 in
Daylight
14h 49m
July records in South Lyon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 90.0°F (2012) | 46.0°F (2008) | 1.00 in (2014) |
| July 2 | 91.0°F (2018) | 46.0°F (2008) | 0.75 in (2023) |
| July 3 | 93.9°F (2011) | 46.0°F (2010) | 2.38 in (2008) |
| July 4 | 89.1°F (2018) | 46.9°F (2008) | 0.43 in (2012) |
| July 5 | 96.1°F (2012) | 48.0°F (2008) | 0.84 in (2025) |
| July 6 | 90.0°F (2012) | 51.1°F (2008) | 4.00 in (2024) |
| July 7 | 98.1°F (2012) | 48.0°F (2018) | 1.15 in (2013) |
| July 8 | 93.9°F (2012) | 48.9°F (2009) | 2.30 in (2016) |
| July 9 | 90.0°F (2010) | 48.9°F (2009) | 1.50 in (2014) |
| July 10 | 90.0°F (2020) | 50.0°F (2022) | 1.76 in (2024) |
| July 11 | 91.0°F (2011) | 53.1°F (2008) | 1.27 in (2024) |
| July 12 | 89.1°F (2019) | 53.1°F (2009) | 0.30 in (2011) |
| July 13 | 88.0°F (2016) | 46.0°F (2009) | 1.62 in (2017) |
| July 14 | 91.0°F (2018) | 46.0°F (2009) | 0.50 in (2022) |
| July 15 | 91.0°F (2018) | 46.9°F (2009) | 0.41 in (2023) |
| July 16 | 91.0°F (2012) | 48.9°F (2015) | 0.83 in (2024) |
| July 17 | 95.0°F (2012) | 51.1°F (2014) | 1.72 in (2021) |
| July 18 | 99.0°F (2012) | 51.1°F (2009) | 0.35 in (2015) |
| July 19 | 91.9°F (2011) | 50.0°F (2009) | 0.27 in (2011) |
| July 20 | 91.0°F (2011) | 55.0°F (2009) | 1.63 in (2010) |
| July 21 | 93.0°F (2011) | 54.0°F (2009) | 0.27 in (2021) |
| July 22 | 97.0°F (2011) | 53.1°F (2012) | 0.70 in (2019) |
| July 23 | 91.0°F (2012) | 53.1°F (2019) | 0.24 in (2024) |
| July 24 | 95.0°F (2012) | 51.1°F (2013) | 0.65 in (2013) |
| July 25 | 93.9°F (2025) | 48.0°F (2013) | 1.00 in (2025) |
| July 26 | 89.1°F (2012) | 50.0°F (2017) | 2.50 in (2025) |
| July 27 | 88.0°F (2020) | 54.0°F (2024) | 0.84 in (2023) |
| July 28 | 90.0°F (2025) | 48.9°F (2013) | 2.10 in (2011) |
| July 29 | 88.0°F (2015) | 46.9°F (2014) | 0.91 in (2011) |
| July 30 | 88.0°F (2015) | 46.9°F (2014) | 2.00 in (2015) |
| July 31 | 89.1°F (2012) | 48.9°F (2013) | 1.58 in (2016) |