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
With the onset of August, the average high-temperature stands at a still warm 80.1°F (26.7°C), closely aligned with July's 81.3°F (27.4°C). Throughout August, an average nighttime temperature of 62.4°F (16.9°C) is experienced.Humidity
In August, the average relative humidity is 82%.Rainfall
In River Forest, Indiana, in August, during 14.6 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, there are 142.1 rainfall days, and 20.91" (531mm) of precipitation is accumulated.Snowfall
In River Forest, snow does not fall in May through September.Daylight
The average length of the day in August is 13h and 43min.On the first day of the month, sunrise is at 6:41 am and sunset at 8:56 pm. On the last day of August, sunrise is at 7:10 am and sunset at 8:15 pm EDT.
Sunshine
The average sunshine in August is 9.5h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 6 in August interprets into the following advice:
Shun overexposure. Protection from sun ravages is indispensable. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What is the usual temperature for River Forest in August?
What is the average humidity in August in River Forest?
How many days does it rain in August in River Forest?
When it does not snow in River Forest?
How many hours of daylight does River Forest have in August?
When is the sunrise / sunset in August in River Forest?
How long on average sun shines in August in River Forest?
When is the highest UV index in River Forest?
What is the UV index reading in August in River Forest?
Average temperature in August
River Forest, IN
- 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 (32.2°F).
- Average low temperature in August: 62.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in August
River Forest, IN
- 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 (29.93"Hg).
Average wind speed in August
River Forest, IN
- Average wind speed in August: 5.9mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in August
River Forest, IN
- Average humidity in August: 82%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
River Forest, IN
- Average rainfall in August: 1.97"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are February and November (1.14").
Average rainfall days in August
River Forest, IN
- Average rainfall days in August: 14.6 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in August
River Forest, IN
- Average snowfall in August: 0"
The months with the highest snowfall are February and December (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
River Forest, IN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
River Forest, IN
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
River Forest, IN
- Average sunshine days in August: 13.2 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in August
River Forest, IN
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in August
River Forest, IN
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are June, July and August (Cloud cover 32).
Average visibility in August
River Forest, IN
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
River Forest, Indiana, USA
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