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
As July turns into August, the average high-temperatures rest at a still warm 80.1°F (26.7°C), showing a minor variation from the prior month. During August, the nighttime temperature averages to a comfortable 62.4°F (16.9°C).Humidity
The average relative humidity in August is 83%.Rainfall
In Graymont, during August, the rain falls for 12.8 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, there are 125.3 rainfall days, and 15.71" (399mm) of precipitation is accumulated.Snowfall
In Graymont, snow does not fall in May through September.Daylight
In Graymont, the average length of the day in August is 13h and 45min.On the first day of the month, sunrise is at 5:52 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
The months with the most sunshine in Graymont are June and August, with an average of 9.8h of sunshine.UV index
In Graymont, Illinois, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, the maximum UV index of 5 translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Stay sun-safe with clothing that is both closely woven and worn loosely.
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 in Graymont?
When it does not snow in Graymont?
How many hours of daylight does Graymont have in August?
When is the sunrise / sunset in August?
What are the months with the most sunshine?
How many hours of sunshine does Graymont have in August?
How high is the UV index in August?
Average temperature in August
Graymont, 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
Graymont, 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
Graymont, 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
Graymont, 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
Graymont, 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
Graymont, 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
Graymont, 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
Graymont, 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
Graymont, 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
Graymont, 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
Graymont, 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
Graymont, 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
Graymont, 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).
Graymont, Illinois, USA
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