Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Sumner, Michigan, experiences a recorded average high-temperature of a still warm 77.5°F (25.3°C) in August, closely aligned with July's 79.3°F (26.3°C). Sumner's average low-temperature for the month of August records at a mild 59.2°F (15.1°C).Humidity
In August, the average relative humidity is 80%.Rainfall
In Sumner, during August, the rain falls for 13.8 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Sumner, during the entire year, the rain falls for 141.3 days and collects up to 22.48" (571mm) of precipitation.Snowfall
In Sumner, snow does not fall in May through September.Daylight
The average length of the day in August is 13h and 55min.On the first day of August, sunrise is at 6:30 am and sunset at 9:00 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:15 pm EDT.
Sunshine
In Sumner, the average sunshine in August is 9.7h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 5 in August translates into these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Sumner in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
What is the average length of the day in August?
When is the sunrise / sunset in August?
How many hours of sunshine does Sumner have in August?
What is the month with the highest UV index in Sumner?
How high is the UV index in August?
Average temperature in August
Sumner, MI
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in August: 59.2°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in August
Sumner, MI
- Average pressure in August: 29.96"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
Sumner, MI
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in August
Sumner, MI
- Average humidity in August: 80%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in August
Sumner, MI
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in August
Sumner, MI
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in August
Sumner, MI
- Average snowfall in August: 0"
The month with the highest snowfall is January (5.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Sumner, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Sumner, MI
- Average daylight in August: 13h and 5min
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 0min).
- Average sunshine in August: 9h and 4min
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 42min).
Average sunshine days in August
Sumner, MI
- Average sunshine days in August: 13.7 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is January (10.3 days).
Average UV index in August
Sumner, MI
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in August
Sumner, MI
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in August
Sumner, MI
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).
Sumner, Michigan, USA
Weather forecast for your location
2. Allow the app to use your location