South Lyon, MI
Climate overview — based on NOAA 1991-2020 normals from WHITMORE LAKE 1NW, MI US.
Year-round temperatures (°F)
Climate summary
South Lyon has an annual average temperature of 47.1°F with about 34.5 inches of precipitation per year. The warmest month is July (average high 81.7°F), and the coldest is February (average low 13.9°F). June is typically the wettest month (3.72 in) and February the driest (2.07 in).
Best time to visit South Lyon
Full guide →Climate change signal
All-time records →234 of 366 (63.9%) of South Lyon's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 2000s | 27 | |
| 2010s | 223 | |
| 2020s | 116 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 30.2°F | 14.6°F | 22.4°F | 2.38 in | — | — |
| February | 33.7°F | 13.9°F | 23.8°F | 2.07 in | — | — |
| March | 43.8°F | 23.8°F | 33.8°F | 2.43 in | — | — |
| April | 56.9°F | 33.7°F | 45.3°F | 2.99 in | — | — |
| May | 68.8°F | 44.8°F | 56.8°F | 3.65 in | — | — |
| June | 77.1°F | 54.4°F | 65.8°F | 3.72 in | — | — |
| July | 81.7°F | 58.6°F | 70.2°F | 3.38 in | — | — |
| August | 79.2°F | 57.9°F | 68.5°F | 3.34 in | — | — |
| September | 73.5°F | 50.2°F | 61.8°F | 3.11 in | — | — |
| October | 60.3°F | 39.8°F | 50.1°F | 2.80 in | — | — |
| November | 46.7°F | 29.9°F | 38.3°F | 2.48 in | — | — |
| December | 35.3°F | 21.6°F | 28.4°F | 2.11 in | — | — |
Climate twins of South Lyon
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).