August weather forecastAnnawan, IL
August
Weather in August
The last month of the summer, August, is another warm month in Annawan, Illinois, with an average temperature ranging between min 62.6°F (17°C) and max 80.1°F (26.7°C).Temperature
Annawan's average high-temperature in August is a still moderately hot 80.1°F (26.7°C), indicating a subtle variation from July. During August, an average low-temperature of 62.6°F (17°C) is observed.Humidity
In Annawan, the average relative humidity in August is 82%.Rainfall
In August, the rain falls for 13.8 days. Throughout August, 2.01" (51mm) of precipitation is accumulated. In Annawan, during the entire year, the rain falls for 147.2 days and collects up to 29.17" (741mm) of precipitation.Snowfall
In Annawan, snow does not fall in May through September.Daylight
The average length of the day in August in Annawan is 13h and 47min.On the first day of the month, sunrise is at 5:55 am and sunset at 8:16 pm. On the last day of August, in Annawan, sunrise is at 6:25 am and sunset at 7:33 pm CDT.
Sunshine
In August, the average sunshine in Annawan is 9.8h.UV index
In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 5 in August leads to these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Annawan, 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
Annawan, 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
Annawan, 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
Annawan, 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
Annawan, 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
Annawan, 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
Annawan, 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
Annawan, 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
Annawan, 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 12min).
- 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
Annawan, 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
Annawan, 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
Annawan, 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
Annawan, 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).
