August weather forecastGrantsville, MD
August
Weather in August
August, the last month of the summer in Grantsville, is also a moderately hot month, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 79.7°F (26.5°C).Temperature
August's beginning signals an average high-temperature of a still warm 79.7°F (26.5°C), barely different from July's 81.5°F (27.5°C). Despite the hot August days, Grantsville's nights see an average temperature plunge to a mild 57.7°F (14.3°C).Humidity
In Grantsville, Maryland, the average relative humidity in August is 78%.Rainfall
In Grantsville, during August, the rain falls for 16.8 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, there are 186.2 rainfall days, and 31.93" (811mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 41min.On the first day of August, sunrise is at 6:16 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:48 pm EDT.
Sunshine
In Grantsville, the average sunshine in August is 10.1h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grantsville, MD
- Average high temperature in August: 79.7°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in August: 57.7°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in August
Grantsville, MD
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in August
Grantsville, MD
- Average wind speed in August: 4.6mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in August
Grantsville, MD
- Average humidity in August: 78%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is July (76%).
Average rainfall in August
Grantsville, MD
- Average rainfall in August: 2.36"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in August
Grantsville, MD
- Average rainfall days in August: 16.8 days
The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is November (11.1 days).
Average snowfall in August
Grantsville, MD
- Average snowfall in August: 0"
The month with the highest snowfall is February (6.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Grantsville, MD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (14.4 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, MD
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in August
Grantsville, MD
- Average sunshine days in August: 11.4 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in August
Grantsville, MD
- 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, February, March, November and December (UV index 2).
Average cloud cover in August
Grantsville, MD
- Average cloud cover in August: 35
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in August
Grantsville, MD
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
