April weather in South Lyon, MI
The average temperature in South Lyon in April is 45.3°F (33.7°F–56.9°F). Average precipitation: 2.99 inches.
April is a spring month in South Lyon, and is cooler than the annual average of 47.1°F. Daily temperatures swing about 23.2°F between overnight low and afternoon high. Daylight averages about 13h 10m. For travel, April is cool.
Avg High
56.9°F
Avg Low
33.7°F
Precipitation
2.99 in
Daylight
13h 10m
April records in South Lyon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 73.9°F (2026) | 18.0°F (2011) | 1.30 in (2023) |
| April 2 | 78.1°F (2010) | 17.1°F (2018) | 0.30 in (2024) |
| April 3 | 78.1°F (2010) | 17.1°F (2016) | 0.71 in (2026) |
| April 4 | 73.9°F (2010) | 21.0°F (2013) | 1.10 in (2023) |
| April 5 | 70.0°F (2010) | 15.1°F (2016) | 0.86 in (2026) |
| April 6 | 73.9°F (2023) | 15.1°F (2016) | 0.98 in (2017) |
| April 7 | 79.0°F (2021) | 18.0°F (2018) | 0.69 in (2011) |
| April 8 | 82.0°F (2021) | 15.1°F (2018) | 0.38 in (2010) |
| April 9 | 73.9°F (2021) | 21.0°F (2025) | 0.34 in (2011) |
| April 10 | 75.9°F (2024) | 21.9°F (2025) | 0.62 in (2015) |
| April 11 | 82.9°F (2011) | 25.0°F (2016) | 1.33 in (2013) |
| April 12 | 75.9°F (2023) | 24.1°F (2009) | 0.91 in (2024) |
| April 13 | 81.0°F (2023) | 28.0°F (2012) | 0.30 in (2008) |
| April 14 | 82.9°F (2023) | 26.1°F (2020) | 0.55 in (2018) |
| April 15 | 82.9°F (2023) | 23.0°F (2014) | 1.23 in (2012) |
| April 16 | 84.9°F (2023) | 17.1°F (2014) | 0.31 in (2018) |
| April 17 | 73.0°F (2016) | 17.1°F (2014) | 1.11 in (2026) |
| April 18 | 78.1°F (2016) | 23.0°F (2020) | 0.93 in (2013) |
| April 19 | 82.0°F (2016) | 25.0°F (2018) | 1.48 in (2013) |
| April 20 | 75.0°F (2008) | 25.0°F (2020) | 0.87 in (2017) |
| April 21 | 73.0°F (2014) | 23.0°F (2013) | 0.68 in (2009) |
| April 22 | 79.0°F (2014) | 21.0°F (2021) | 0.34 in (2023) |
| April 23 | 73.9°F (2008) | 21.9°F (2021) | 1.10 in (2022) |
| April 24 | 80.1°F (2022) | 23.0°F (2015) | 0.73 in (2013) |
| April 25 | 86.0°F (2025) | 23.0°F (2015) | 0.55 in (2010) |
| April 26 | 81.0°F (2009) | 27.0°F (2023) | 1.44 in (2019) |
| April 27 | 82.0°F (2017) | 28.0°F (2012) | 0.94 in (2017) |
| April 28 | 81.0°F (2009) | 26.1°F (2022) | 2.08 in (2011) |
| April 29 | 77.0°F (2024) | 25.0°F (2012) | 0.63 in (2023) |
| April 30 | 84.0°F (2025) | 25.0°F (2012) | 1.00 in (2024) |