Napoleon, Michigan Climate
United States
Pop. 1,258 Elev. 295 m / 968 ft
TZ: America/Detroit (UTC-4) ·
Napoleon has a dry climate with warm summers reaching 84°F (29°C) in July and cold winters averaging 17°F (-8°C) in January. Humidity pushes the summer feels-like temperature to 90°F (32°C), while wind chill can drive winter lows to 8°F (-13°C). Rain falls on about 44 days per year (30.9 in / 784 mm total), with snow on 8 days and 47 in (1196 mm) of annual accumulation. The city averages 107 sunny days per year and around 30 thunderstorm days. Nearby lake water reaches 76°F (25°C) in summer.
| Temperature | 84°F (29°C) high | 17°F (-8°C) low |
| Feels like | 90°F (32°C) high | 8°F (-13°C) low |
| Rain | 44 days | 30.9 in (784 mm) /yr |
| Snow | 8 days | 47.1 in (1196 mm) /yr |
| Sky | 107 sunny | 30 stormy |
| Wind | 3.0 mph (1.3 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 (%)
75
Jan 76
Feb 61
Mar 65
Apr 67
May 56
Jun 56
Jul 47
Aug 35
Sep 42
Oct 59
Nov 79
Dec Humidity (%)
69
Jan 72
Feb 59
Mar 57
Apr 66
May 67
Jun 71
Jul 70
Aug 69
Sep 69
Oct 70
Nov 78
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 46 mi Capital Region International Airport (LAN)
Ski resort 34 mi Mt Brighton
National park 61 mi Ojibway Prairie Provincial Nature Reserve
Hospital 10 mi Henry Ford Jackson Hospital
Hiking trail 15 mi Waterloo-Pinckney Hiking Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 28°F -2°C | 17°F -8°C | 0.9 in 23 mm | 8.9 in226 mm | 4 |
| February | 33°F 0°C | 20°F -7°C | 0.4 in 10 mm | 12.8 in326 mm | 3 |
| March | 54°F 12°C | 34°F 1°C | 3.4 in 87 mm | 2.4 in61 mm | 6 |
| April | 60°F 15°C | 41°F 5°C | 3.1 in 80 mm | 2.3 in57 mm | 6 |
| May | 67°F 20°C | 49°F 9°C | 4.7 in 118 mm | — | 4 |
| June | 81°F 27°C | 63°F 17°C | 4.3 in 110 mm | — | 11 |
| July | 84°F 29°C | 67°F 19°C | 5.1 in 130 mm | — | 11 |
| August | 79°F 26°C | 60°F 16°C | 1.7 in 42 mm | — | 15 |
| September | 76°F 24°C | 54°F 12°C | 1.9 in 47 mm | — | 19 |
| October | 64°F 18°C | 45°F 7°C | 2.5 in 64 mm | — | 17 |
| November | 47°F 8°C | 33°F 0°C | 0.9 in 22 mm | 10.2 in259 mm | 9 |
| December | 34°F 1°C | 19°F -7°C | 2.0 in 51 mm | 10.5 in267 mm | 2 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 4 | 1 |
| February | 3 | 0 |
| March | 6 | 3 |
| April | 6 | 4 |
| May | 4 | 4 |
| June | 11 | 5 |
| July | 11 | 7 |
| August | 15 | 2 |
| September | 19 | 1 |
| October | 17 | 2 |
| November | 9 | 0 |
| December | 2 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 38°F 3°C |
| April | 48°F 9°C |
| May | 57°F 14°C |
| June | 69°F 20°C |
| July | 76°F 25°C |
| August | 71°F 22°C |
| September | 65°F 18°C |
| October | 57°F 14°C |
| November | 40°F 4°C |
| December | 32°F 0°C |