Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The initiation of August sees an average high-temperature of a still moderately hot 80.1°F (26.7°C), showing minor variations from the previous month. Pontiac observes an average low-temperature of 62.4°F (16.9°C) during August.Humidity
The average relative humidity in August is 83%.Rainfall
In Pontiac, in August, during 12.8 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Pontiac, during the entire year, the rain falls for 125.3 days and collects up to 15.71" (399mm) of precipitation.Snowfall
In Pontiac, snow does not fall in May through September.Daylight
In Pontiac, the average length of the day in August is 13h and 45min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:21 am and sunset at 7:28 pm CDT.
Sunshine
June and August, with an average of 9.8h of sunshine, are months with the most sunshine.UV index
In Pontiac, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in August converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. When the Sun is at its strongest around midday, find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow in Pontiac?
What is the average length of the day in August?
When are sunrise and sunset in August?
What are the months with the most sunshine?
How long on average sun shines in August?
How high is the UV index in August?
Average temperature in August
Pontiac, IL
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in August: 62.4°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in August
Pontiac, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Pontiac, IL
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in August
Pontiac, IL
- Average humidity in August: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Pontiac, IL
- Average rainfall in August: 1.3"
The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in August
Pontiac, IL
- Average rainfall days in August: 12.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in August
Pontiac, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Pontiac, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Pontiac, IL
- Average daylight in August: 13h and 5min
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 5min
The months with the most sunshine are June and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Pontiac, IL
- Average sunshine days in August: 14.4 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in August
Pontiac, IL
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Pontiac, IL
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in August
Pontiac, IL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Pontiac, Illinois, USA
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