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
In August, the average high-temperature registers at a still moderately hot 80.2°F (26.8°C), nearly identical to July's 81.1°F (27.3°C). During August, the average low-temperature is a refreshing 62.6°F (17°C).Humidity
In Geneseo, the average relative humidity in August is 81%.Rainfall
In Geneseo, in August, during 11.1 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Geneseo, during the entire year, the rain falls for 118.8 days and collects up to 15.04" (382mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in August is 13h and 47min.On the first day of August, sunrise is at 5:56 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:34 pm CDT.
Sunshine
In Geneseo, the average sunshine in August is 9.9h.UV index
In Geneseo, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 5 in August transforms into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What is the average humidity in August?
How much does it rain in Geneseo in August?
When it does not snow?
How many hours of daylight does Geneseo have in August?
When is the sunrise / sunset in August?
How many hours of sunshine does Geneseo have in August?
What is the UV index reading in August in Geneseo?
Average temperature in August
Geneseo, IL
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in August: 62.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in August
Geneseo, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Geneseo, IL
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in August
Geneseo, IL
- Average humidity in August: 81%
The months with the highest relative humidity are January and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Geneseo, IL
- Average rainfall in August: 1.1"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are January and December (0.63").
Average rainfall days in August
Geneseo, IL
- Average rainfall days in August: 11.1 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in August
Geneseo, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Geneseo, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9 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
Geneseo, 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: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Geneseo, IL
- Average sunshine days in August: 17.9 days
The month with the most sunshine days is December (20.9 days).
The month with the least sunshine days is June (12 days).
Average UV index in August
Geneseo, IL
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Geneseo, IL
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in August
Geneseo, 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).
Geneseo, Illinois, USA
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