August weather forecastOld Mission, MI
August
Weather in August
The last month of the summer, August, is also an agreeable month in Old Mission, Michigan, with an average temperature varying between 60.4°F (15.8°C) and 72.1°F (22.3°C).Temperature
In Old Mission, the average temperatures in August are the highest, with a peak at 72.1°F (22.3°C) and a low of 60.4°F (15.8°C).Humidity
In August, the average relative humidity is 78%.Rainfall
In Old Mission, Michigan, in August, during 14.8 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 136.2 rainfall days, and 24.65" (626mm) of precipitation is accumulated.Snowfall
In Old Mission, Michigan, snow does not fall in June through September.Daylight
In August, the average length of the day in Old Mission, Michigan, is 14h and 1min.On the first day of August in Old Mission, sunrise is at 6:28 am and sunset at 9:08 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:20 pm EDT.
Sunshine
In August, the average sunshine is 10h.UV index
The months with the highest UV index in Old Mission are June through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 5 during August, leads to the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Old Mission, MI
- Average high temperature in August: 72.1°F
The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is August (60.4°F).
The coldest months (with the lowest average low temperature) are January and February (18.9°F).
Average pressure in August
Old Mission, MI
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Old Mission, MI
- Average wind speed in August: 8.5mph
The windiest months (with the highest average wind speed) are January, November and December (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in August
Old Mission, MI
- Average humidity in August: 78%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in August
Old Mission, MI
- Average rainfall in August: 1.77"
The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is February (1.54").
Average rainfall days in August
Old Mission, MI
- Average rainfall days in August: 14.8 days
The month with the highest number of rainy days is October (17.9 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in August
Old Mission, MI
- Average snowfall in August: 0"
The month with the highest snowfall is January (6.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Old Mission, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Old Mission, MI
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 1h and 42min).
Average sunshine days in August
Old Mission, MI
- Average sunshine days in August: 13.2 days
The month with the most sunshine days is May (14.7 days).
The month with the least sunshine days is January (4.7 days).
Average UV index in August
Old Mission, MI
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in August
Old Mission, MI
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in August
Old Mission, MI
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





