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
The average high-temperature for August is a still moderately hot 77.2°F (25.1°C), closely aligning with the temperature of the preceding month. Contrasting the daytime warmth, Grand Rapids's August nights cool down to an average of 55°F (12.8°C).Humidity
In Grand Rapids, the average relative humidity in August is 74%.Rainfall
In Grand Rapids, Minnesota, in August, during 12.6 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Grand Rapids, Minnesota, during the entire year, the rain falls for 113.8 days and collects up to 18.94" (481mm) of precipitation.Snowfall
In Grand Rapids, snow does not fall in June through September.Daylight
In August, the average length of the day is 14h and 11min.On the first day of August, sunrise is at 5:53 am and sunset at 8:47 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:55 pm CDT.
Sunshine
The average sunshine in August is 9.4h.UV index
In Grand Rapids, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 in August translates into this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Grand Rapids in August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Grand Rapids have in August?
When are sunrise and sunset in August?
How many hours of sunshine does Grand Rapids have in August?
What is the UV index reading in August?
Average temperature in August
Grand Rapids, MN
- Average high temperature in August: 77.2°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 (15.8°F).
- Average low temperature in August: 55°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (1.4°F).
Average pressure in August
Grand Rapids, MN
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in August
Grand Rapids, MN
- Average wind speed in August: 6.2mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in August
Grand Rapids, MN
- Average humidity in August: 74%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).
Average rainfall in August
Grand Rapids, MN
- Average rainfall in August: 1.89"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in August
Grand Rapids, MN
- Average rainfall days in August: 12.6 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in August
Grand Rapids, MN
- Average snowfall in August: 0"
The month with the highest snowfall is December (7.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Grand Rapids, MN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Grand Rapids, MN
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 9h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in August
Grand Rapids, MN
- Average sunshine days in August: 16.5 days
The months with the most sunshine days are August and September (16.5 days).
The month with the least sunshine days is February (10.1 days).
Average UV index in August
Grand Rapids, MN
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in August
Grand Rapids, MN
- Average cloud cover in August: 37
The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in August
Grand Rapids, MN
- Average visibility in August: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Grand Rapids, Minnesota, USA
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