August weather forecastSouth Lyon, MI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in South Lyon, Michigan, with an average temperature varying between 78.3°F (25.7°C) and 61.2°F (16.2°C).Temperature
With the advent of August, South Lyon experiences an average high-temperature of a still moderately hot 78.3°F (25.7°C), mirroring a close resemblance to the previous month. South Lyon, during the month of August, experiences an average low-temperature of 61.2°F (16.2°C).Humidity
In South Lyon, the average relative humidity in August is 78%.Rainfall
In South Lyon, in August, during 13.5 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, there are 121.2 rainfall days, and 11.77" (299mm) of precipitation is accumulated.Snowfall
In South Lyon, snow does not fall in June through September.Daylight
In South Lyon, the average length of the day in August is 13h and 51min.On the first day of August, sunrise is at 6:27 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:09 pm EDT.
Sunshine
In South Lyon, the average sunshine in August is 9.9h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index in South Lyon. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
South Lyon, MI
- Average high temperature in August: 78.3°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in August: 61.2°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in August
South Lyon, MI
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
South Lyon, MI
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in August
South Lyon, MI
- Average humidity in August: 78%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
South Lyon, MI
- Average rainfall in August: 1.34"
The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in August
South Lyon, MI
- Average rainfall days in August: 13.5 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in August
South Lyon, MI
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
South Lyon, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
South Lyon, MI
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in August
South Lyon, MI
- Average sunshine days in August: 14.1 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in August
South Lyon, MI
- Average UV index in August: 6
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
South Lyon, MI
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in August
South Lyon, MI
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





