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 advent of August sees the average high-temperature at a still moderately hot 79.3°F (26.3°C), subtly shifted from July's 80.1°F (26.7°C). August sees the temperature falling to a mean low of 66°F (18.9°C).Humidity
The average relative humidity in August is 77%.Rainfall
In Calumet City, in August, it is raining for 11 days, with typically 0.98" (25mm) of accumulated precipitation. In Calumet City, during the entire year, the rain falls for 110.3 days and collects up to 10.31" (262mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in August is 13h and 48min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:07 pm. On the last day of August, sunrise is at 6:15 am and sunset at 7:24 pm CDT.
Sunshine
August has the most sunshine of the year, with an average of 10.4h of sunshine.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Calumet City. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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?
How many hours of daylight does Calumet City have in August?
What time are sunrise and sunset in August?
What month has the most sunshine?
How long on average sun shines in August?
What is the month with the highest UV index?
What is the UV index reading in August?
Average temperature in August
Calumet City, IL
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in August: 66°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in August
Calumet City, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Calumet City, IL
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in August
Calumet City, IL
- Average humidity in August: 77%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Calumet City, IL
- Average rainfall in August: 0.98"
The wettest months (with the highest rainfall) are May and June (1.38").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days in August
Calumet City, IL
- Average rainfall days in August: 11 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in August
Calumet City, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Calumet City, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.3 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
Calumet City, 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 12min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Calumet City, IL
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is December (19.8 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in August
Calumet City, IL
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Calumet City, IL
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Calumet City, IL
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Calumet City, Illinois, USA
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