August weather forecastMcLean, NY
August
Weather in August
The last month of the summer, August, is also a moderately hot month in McLean, New York, with an average temperature varying between 55.6°F (13.1°C) and 75.7°F (24.3°C).Temperature
The introduction of August sees an average high-temperature of a still moderately hot 75.7°F (24.3°C), hardly deviating from July. In August, the temperature in McLean drops to an average of 55.6°F (13.1°C) at night.Humidity
The average relative humidity in August in McLean is 81%.Rainfall
In McLean, in August, it is raining for 17.6 days, with typically 3.27" (83mm) of accumulated precipitation. Throughout the year, there are 165.9 rainfall days, and 34.41" (874mm) of precipitation is accumulated.Snowfall
In McLean, snow does not fall in June through September.Daylight
In McLean, the average length of the day in August is 13h and 52min.On the first day of August, sunrise is at 5:58 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:40 pm EDT.
Sunshine
In August, the average sunshine in McLean is 9.6h.UV index
The months with the highest UV index in McLean are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 5 during August morphs into the following directions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
McLean, NY
- Average high temperature in August: 75.7°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in August: 55.6°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in August
McLean, NY
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
McLean, NY
- Average wind speed in August: 5.9mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in August
McLean, NY
- Average humidity in August: 81%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, May and July (80%).
Average rainfall in August
McLean, NY
- Average rainfall in August: 3.27"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (2.24").
Average rainfall days in August
McLean, NY
- Average rainfall days in August: 17.6 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in August
McLean, NY
- Average snowfall in August: 0"
The month with the highest snowfall is February (9.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
McLean, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
McLean, NY
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 9h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in August
McLean, NY
- Average sunshine days in August: 10.6 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (5.1 days).
Average UV index in August
McLean, NY
- 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 and December (UV index 1).
Average cloud cover in August
McLean, NY
- Average cloud cover in August: 38
The month with the most cloud cover is February (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in August
McLean, NY
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
