August weather forecastWillis, MI
August
Weather in August
August, the last month of the summer in Willis, is another warm month, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 78.4°F (25.8°C).Temperature
In August, Willis's weather conditions record an average high-temperature of a still moderately hot 78.4°F (25.8°C), demonstrating little divergence from the preceding month. August nights in Willis are marked by an average temperature drop to an enjoyable 61.3°F (16.3°C).Humidity
In August, the average relative humidity in Willis is 79%.Rainfall
In Willis, Michigan, in August, during 8.1 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Willis, during the entire year, the rain falls for 85.1 days and collects up to 5.98" (152mm) of precipitation.Snowfall
May through October are months without snowfall in Willis.Daylight
In August, the average length of the day in Willis is 13h and 50min.On the first day of August, sunrise is at 6:28 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:09 pm EDT.
Sunshine
In August, the average sunshine in Willis, Michigan, is 10.1h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Willis. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 6 in August leads to these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Willis, MI
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in August: 61.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in August
Willis, MI
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Willis, MI
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in August
Willis, MI
- Average humidity in August: 79%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are March, April and October (76%).
Average rainfall in August
Willis, MI
- Average rainfall in August: 0.67"
The wettest month (with the highest rainfall) is May (0.75").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in August
Willis, MI
- Average rainfall days in August: 8.1 days
The months with the highest number of rainy days are April and May (10.2 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in August
Willis, MI
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Willis, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Willis, MI
- Average daylight in August: 13h and 48min
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 12min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in August
Willis, MI
- Average sunshine days in August: 19.7 days
The month with the most sunshine days is December (23.6 days).
The month with the least sunshine days is April (17.4 days).
Average UV index in August
Willis, MI
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Willis, MI
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in August
Willis, MI
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





