August weather forecastLafayette, IL
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Lafayette, Illinois, with an average temperature fluctuating between 80.1°F (26.7°C) and 62.6°F (17°C).Temperature
The shift from July to August is characterized by an average high-temperature of a still warm 80.1°F (26.7°C), not significantly different from the 81°F (27.2°C) of July. Lafayette, in August, experiences an average temperature of 62.6°F (17°C) at night.Humidity
In August, the average relative humidity is 82%.Rainfall
In Lafayette, in August, during 13.8 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, in Lafayette, there are 147.2 rainfall days, and 29.17" (741mm) of precipitation is accumulated.Snowfall
In Lafayette, snow does not fall in May through September.Daylight
The average length of the day in August is 13h and 46min.On the first day of August, sunrise is at 5:56 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:33 pm CDT.
Sunshine
In August, the average sunshine is 9.8h.UV index
In Lafayette, Illinois, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 5 during August leads to these instructions:
Take necessary precautions - Defending against sun damage is advocated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lafayette, 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 (28.8°F).
- Average low temperature in August: 62.6°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 (16.7°F).
Average pressure in August
Lafayette, 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
Lafayette, 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
Lafayette, IL
- Average humidity in August: 82%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Lafayette, IL
- Average rainfall in August: 2.01"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days in August
Lafayette, IL
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in August
Lafayette, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Lafayette, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.4 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
Lafayette, IL
- Average daylight in August: 13h and 48min
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 48min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Lafayette, IL
- Average sunshine days in August: 14.4 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in August
Lafayette, 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 January (UV index 1).
Average cloud cover in August
Lafayette, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in August
Lafayette, 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).
