August weather forecastGranite Falls, MN
August
Weather in August
In August, the weather in Granite Falls, Minnesota, slowly begins to transition from hot summer days to the approaching coolness of fall. The temperature slightly reduces to an average high of 79.5°F (26.4°C), signaling the onset of the seasonal shift. The intensity of the sun also decreases, and sunglasses give way to umbrellas as the city experiences a total rainfall of 1.69" (43mm). It remains an ideal time for outdoor activities, picnics, and enjoying the remnants of summer. This month, bathed in sunlight for about 14 hours per day, perfectly blends warmth and upcoming coolness.Temperature
As August unfolds, the average high-temperature reaches a still warm 79.5°F (26.4°C), hinting at a slight fluctuation from the previous month. August brings with it a nighttime average temperature of 59.2°F (15.1°C) in Granite Falls.Humidity
In August, the average relative humidity in Granite Falls is 74%.Rainfall
In Granite Falls, in August, it is raining for 11.6 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, there are 101.9 rainfall days, and 15.12" (384mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Granite Falls, the average length of the day in August is 14h and 0min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:47 pm. On the last day of August, in Granite Falls, Minnesota, sunrise is at 6:44 am and sunset at 8:00 pm CDT.
Sunshine
In August, the average sunshine in Granite Falls is 10h.UV index
In August, the average daily maximum UV index in Granite Falls is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 5 in August transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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
Average temperature in August
Granite Falls, MN
- Average high temperature in August: 79.5°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.3°F).
- Average low temperature in August: 59.2°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (6.8°F).
Average pressure in August
Granite Falls, MN
- Average pressure in August: 29.94"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Granite Falls, MN
- Average wind speed in August: 7.4mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in August
Granite Falls, MN
- Average humidity in August: 74%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (66%).
Average rainfall in August
Granite Falls, MN
- Average rainfall in August: 1.69"
The wettest months (with the highest rainfall) are June and July (2.4").
The driest months (with the least rainfall) are January and February (0.47").
Average rainfall days in August
Granite Falls, MN
- Average rainfall days in August: 11.6 days
The month with the highest number of rainy days is June (15.6 days).
The month with the least rainy days is February (2 days).
Average snowfall in August
Granite Falls, MN
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Granite Falls, MN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Granite Falls, MN
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Granite Falls, MN
- Average sunshine days in August: 17.7 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is June (12 days).
Average UV index in August
Granite Falls, MN
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in August
Granite Falls, MN
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in August
Granite Falls, MN
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





