August weather forecastGrandville, MI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Grandville, Michigan, with an average temperature varying between 78.4°F (25.8°C) and 60.4°F (15.8°C).Temperature
August's arrival shows an average high-temperature of a still moderately hot 78.4°F (25.8°C), hardly different from the previous month. An average low-temperature of 60.4°F (15.8°C) is expected during August.Humidity
In August, the average relative humidity is 78%.Rainfall
In Grandville, during August, the rain falls for 13.5 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 143.3 rainfall days, and 24.06" (611mm) of precipitation is accumulated.Snowfall
In Grandville, snow does not fall in June through September.Daylight
In Grandville, the average length of the day in August is 13h and 53min.On the first day of the month, sunrise is at 6:35 am and sunset at 9:03 pm. On the last day of August, sunrise is at 7:07 am and sunset at 8:18 pm EDT.
Sunshine
The average sunshine in August is 9.9h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 6 in August translates into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grandville, MI
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in August
Grandville, MI
- Average pressure in August: 29.97"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
Grandville, MI
- Average wind speed in August: 6.6mph
The windiest months (with the highest average wind speed) are February and April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in August
Grandville, MI
- Average humidity in August: 78%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in August
Grandville, MI
- Average rainfall in August: 1.97"
The wettest month (with the highest rainfall) is October (2.8").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days in August
Grandville, MI
- Average rainfall days in August: 13.5 days
The month with the highest number of rainy days is October (16.5 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in August
Grandville, MI
- Average snowfall in August: 0"
The month with the highest snowfall is January (6.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Grandville, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Grandville, MI
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
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 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in August
Grandville, MI
- Average sunshine days in August: 14.1 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in August
Grandville, MI
- Average UV index in August: 6
The months with the highest UV index are June, 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
Grandville, MI
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in August
Grandville, 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).
