Flat Rock, Michigan Climate
United States
Pop. 9,914 Elev. 182 m / 597 ft
TZ: America/Detroit (UTC-4) ·
Flat Rock has a dry climate with warm summers reaching 82°F (28°C) in July and cold winters averaging 22°F (-6°C) in January. Humidity pushes the summer feels-like temperature to 87°F (31°C), while wind chill can drive winter lows to 11°F (-12°C). Rain falls on about 47 days per year (31.7 in / 806 mm total), with snow on 5 days and 41 in (1044 mm) of annual accumulation. The city averages 113 sunny days per year and around 21 thunderstorm days. Ocean water temperatures reach 78°F (25°C) in summer.
| Temperature | 82°F (28°C) high | 22°F (-5°C) low |
| Feels like | 87°F (31°C) high | 11°F (-11°C) low |
| Rain | 47 days | 31.7 in (806 mm) /yr |
| Snow | 5 days | 41.1 in (1044 mm) /yr |
| Sky | 113 sunny | 21 stormy |
| Wind | 4.1 mph (1.8 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
72
Jan 78
Feb 61
Mar 65
Apr 64
May 52
Jun 54
Jul 41
Aug 33
Sep 40
Oct 58
Nov 77
Dec Humidity (%)
67
Jan 73
Feb 67
Mar 70
Apr 76
May 76
Jun 75
Jul 71
Aug 74
Sep 71
Oct 72
Nov 74
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 9 mi Detroit Metropolitan Wayne County Airport (DTW)
Ski resort 40 mi Alpine Valley Ski Area
National park 16 mi Ojibway Prairie Provincial Nature Reserve
Hospital 3 mi Henry Ford Health Center - Brownstown
Hiking trail 24 mi Black-Red Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 30°F -1°C | 22°F -5°C | 0.9 in 24 mm | 8.5 in217 mm | 5 |
| February | 33°F 1°C | 24°F -4°C | 0.7 in 17 mm | 16.6 in422 mm | 2 |
| March | 48°F 9°C | 36°F 2°C | 2.7 in 69 mm | 0.7 in17 mm | 7 |
| April | 54°F 12°C | 43°F 6°C | 4.1 in 104 mm | 0.7 in18 mm | 6 |
| May | 64°F 18°C | 52°F 11°C | 5.2 in 133 mm | — | 6 |
| June | 77°F 25°C | 66°F 19°C | 4.2 in 106 mm | — | 11 |
| July | 82°F 28°C | 72°F 22°C | 4.0 in 101 mm | — | 11 |
| August | 77°F 25°C | 67°F 19°C | 1.0 in 26 mm | — | 16 |
| September | 72°F 22°C | 62°F 16°C | 1.8 in 45 mm | — | 20 |
| October | 62°F 17°C | 52°F 11°C | 2.5 in 64 mm | — | 18 |
| November | 46°F 8°C | 38°F 3°C | 1.7 in 43 mm | 6.0 in151 mm | 9 |
| December | 35°F 2°C | 25°F -4°C | 3.0 in 75 mm | 8.6 in219 mm | 2 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 5 | 0 |
| February | 2 | 0 |
| March | 7 | 1 |
| April | 6 | 2 |
| May | 6 | 5 |
| June | 11 | 5 |
| July | 11 | 3 |
| August | 16 | 1 |
| September | 20 | 1 |
| October | 18 | 1 |
| November | 9 | 0 |
| December | 2 | 2 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 36°F 2°C | 33°F 0°C |
| February | 31°F -1°C | 33°F 0°C |
| March | 40°F 4°C | 39°F 4°C |
| April | 52°F 11°C | 49°F 9°C |
| May | 59°F 15°C | 62°F 17°C |
| June | 74°F 24°C | 74°F 23°C |
| July | 77°F 25°C | 81°F 27°C |
| August | 78°F 25°C | 77°F 25°C |
| September | 69°F 20°C | 71°F 22°C |
| October | 68°F 20°C | 60°F 16°C |
| November | 49°F 9°C | 43°F 6°C |
| December | 38°F 3°C | 33°F 1°C |