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 onset of August marks an average high-temperature of a still warm 80.1°F (26.7°C), hardly differing from July's 81.3°F (27.4°C). The nighttime temperature in Glenwood, during August, averages of 64.6°F (18.1°C).Humidity
The average relative humidity in August is 78%.Rainfall
In August, in Glenwood, the rain falls for 14.8 days. Throughout August, 2.56" (65mm) of precipitation is accumulated. Throughout the year, in Glenwood, there are 155.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.Snowfall
In Glenwood, snow does not fall in May through September.Daylight
In Glenwood, the average length of the day in August is 13h and 47min.On the first day of August, sunrise is at 5:45 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:24 pm CDT.
Sunshine
With an average of 10.1h of sunshine, August has the most sunshine of the year.UV index
In August, the average daily maximum UV index in Glenwood, Illinois, is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in August converts into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Glenwood in August?
What is the average humidity in August in Glenwood?
How many days does it rain in August in Glenwood?
When it does not snow in Glenwood?
How many hours of daylight does Glenwood have in August?
When is the sunrise / sunset in August in Glenwood?
What month has the most sunshine in Glenwood?
How many hours of sunshine does Glenwood have in August?
How high is the UV index in August in Glenwood?
Average temperature in August
Glenwood, IL
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in August: 64.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in August
Glenwood, 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
Glenwood, IL
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in August
Glenwood, IL
- Average humidity in August: 78%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in August
Glenwood, IL
- Average rainfall in August: 2.56"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days in August
Glenwood, IL
- Average rainfall days in August: 14.8 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in August
Glenwood, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Glenwood, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Glenwood, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Glenwood, IL
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in August
Glenwood, 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
Glenwood, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Glenwood, IL
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Glenwood, Illinois, USA
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