August weather forecastGrand Lake Stream, ME
August
Weather in August
The last month of the summer, August, is another warm month in Grand Lake Stream, Maine, with an average temperature varying between 75.9°F (24.4°C) and 55.2°F (12.9°C).Temperature
The beginning of August reveals an average high-temperature of a still warm 75.9°F (24.4°C), showing minimal deviation from the previous month. In August, the average low-temperature is a cool 55.2°F (12.9°C).Humidity
In August, the average relative humidity in Grand Lake Stream, Maine, is 79%.Rainfall
In Grand Lake Stream, in August, it is raining for 11.4 days, with typically 1.06" (27mm) of accumulated precipitation. In Grand Lake Stream, during the entire year, the rain falls for 122.6 days and collects up to 14.53" (369mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 14h and 2min.On the first day of the month, sunrise is at 5:16 am and sunset at 7:57 pm. On the last day of August, sunrise is at 5:52 am and sunset at 7:09 pm EDT.
Sunshine
With an average of 9.8h of sunshine, August has the most sunshine of the year.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In August, the maximum UV index of 5 translates into these guidelines:
Take precautions - Protection against sun damage is advised. Around midday, solar radiation is most harmful; hence, exposure should be limited. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grand Lake Stream, ME
- Average high temperature in August: 75.9°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in August: 55.2°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in August
Grand Lake Stream, ME
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Grand Lake Stream, ME
- Average wind speed in August: 5.6mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in August
Grand Lake Stream, ME
- Average humidity in August: 79%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (77%).
Average rainfall in August
Grand Lake Stream, ME
- Average rainfall in August: 1.06"
The wettest month (with the highest rainfall) is November (1.61").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in August
Grand Lake Stream, ME
- Average rainfall days in August: 11.4 days
The month with the highest number of rainy days is April (14.2 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in August
Grand Lake Stream, ME
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.7").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Grand Lake Stream, ME
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is March (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Grand Lake Stream, ME
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 9h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in August
Grand Lake Stream, ME
- Average sunshine days in August: 17.3 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in August
Grand Lake Stream, ME
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in August
Grand Lake Stream, ME
- Average cloud cover in August: 42
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in August
Grand Lake Stream, ME
- Average visibility in August: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).





