August weather forecastPlano, IL
August
Weather in August
August, the last month of the summer in Plano, is also a moderately hot month, with an average temperature ranging between max 79.3°F (26.3°C) and min 61.7°F (16.5°C).Temperature
Plano, Illinois, registers an average high-temperature of a still moderately hot 79.3°F (26.3°C) with the arrival of August, showing minor deviation from the preceding month. Plano's temperature lowers to a mean of 61.7°F (16.5°C) during the nights in August.Humidity
July and August, with an average relative humidity of 84%, are the most humid months.Rainfall
In Plano, during August, the rain falls for 18.3 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Plano, during the entire year, the rain falls for 168.3 days and collects up to 35.47" (901mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Plano, the average length of the day in August is 13h and 48min.On the first day of the month, sunrise is at 5:49 am and sunset at 8:11 pm. On the last day of August, in Plano, sunrise is at 6:19 am and sunset at 7:28 pm CDT.
Sunshine
June and August, with an average of 9.6h of sunshine, are months with the most sunshine in Plano.UV index
In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 5 during August translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Plano, IL
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in August: 61.7°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 (16.2°F).
Average pressure in August
Plano, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Plano, IL
- Average wind speed in August: 6mph
The windiest months (with the highest average wind speed) are January and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Plano, IL
- Average humidity in August: 84%
The months with the highest relative humidity are July and August (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Plano, IL
- Average rainfall in August: 3.11"
The wettest month (with the highest rainfall) is May (4.88").
The driest month (with the least rainfall) is November (1.73").
Average rainfall days in August
Plano, IL
- Average rainfall days in August: 18.3 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is February (6 days).
Average snowfall in August
Plano, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Plano, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (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
Plano, IL
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 9h and 36min
The months with the most sunshine are June and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Plano, IL
- Average sunshine days in August: 9.1 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in August
Plano, IL
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Plano, IL
- Average cloud cover in August: 34
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in August
Plano, IL
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
