August weather forecastLemont, PA
August
Weather in August
August, the last month of the summer in Lemont, is another warm month, with an average temperature fluctuating between 57.4°F (14.1°C) and 79.9°F (26.6°C).Temperature
Lemont starts August with an average high-temperature of a still moderately hot 79.9°F (26.6°C), a minor shift from July's 82.2°F (27.9°C). Lemont's temperature in August declines substantially from daytime highs, settling at a consistent average of 57.4°F (14.1°C) during the nights.Humidity
In August, the average relative humidity is 78%.Rainfall
In Lemont, in August, it is raining for 15.5 days, with typically 2.32" (59mm) of accumulated precipitation. In Lemont, during the entire year, the rain falls for 175.7 days and collects up to 30.94" (786mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 13h and 45min.On the first day of the month, sunrise is at 6:08 am and sunset at 8:26 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:44 pm EDT.
Sunshine
In August, the average sunshine in Lemont is 9.9h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In August, a regular UV index of 5 translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lemont, PA
- Average high temperature in August: 79.9°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in August: 57.4°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in August
Lemont, PA
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in August
Lemont, PA
- Average wind speed in August: 4.8mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in August
Lemont, PA
- Average humidity in August: 78%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (76%).
Average rainfall in August
Lemont, PA
- Average rainfall in August: 2.32"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in August
Lemont, PA
- Average rainfall days in August: 15.5 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in August
Lemont, PA
- Average snowfall in August: 0"
The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Lemont, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Lemont, PA
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Lemont, PA
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in August
Lemont, PA
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Lemont, PA
- Average cloud cover in August: 37
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in August
Lemont, PA
- 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).
