August weather forecastGrantsville, UT
August
Weather in August
August, the last month of the summer in Grantsville, is also a moderately hot month, with an average temperature ranging between max 81.7°F (27.6°C) and min 62.2°F (16.8°C).Temperature
Grantsville measures an average high-temperature of a still moderately hot 81.7°F (27.6°C) in August, nearly consistent with the preceding month. Grantsville records an average temperature drop to a comfortable 62.2°F (16.8°C) in August.Humidity
The average relative humidity in August is 37%.Rainfall
In Grantsville, in August, it is raining for 10.8 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, there are 137.7 rainfall days, and 20.98" (533mm) of precipitation is accumulated.Snowfall
In Grantsville, snow does not fall in June through September.Daylight
In August, the average length of the day in Grantsville is 13h and 44min.On the first day of August, sunrise is at 6:27 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 8:02 pm MDT.
Sunshine
With an average of 11.8h of sunshine, August has the most sunshine of the year.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum daily UV index of 6 during August morphs into the following directions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grantsville, UT
- Average high temperature in August: 81.7°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in August: 62.2°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in August
Grantsville, UT
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Grantsville, UT
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is January (6mph).
Average humidity in August
Grantsville, UT
- Average humidity in August: 37%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (36%).
Average rainfall in August
Grantsville, UT
- Average rainfall in August: 1.5"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is June (1.1").
Average rainfall days in August
Grantsville, UT
- Average rainfall days in August: 10.8 days
The month with the highest number of rainy days is April (16.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in August
Grantsville, UT
- Average snowfall in August: 0"
The month with the highest snowfall is December (9.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Grantsville, UT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Grantsville, UT
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 11h and 48min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in August
Grantsville, UT
- Average sunshine days in August: 17.3 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (10.2 days).
Average UV index in August
Grantsville, UT
- 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
Grantsville, UT
- Average cloud cover in August: 13
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in August
Grantsville, UT
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
