August weather forecastIroquois, IL
August
Weather in August
August, the last month of the summer in Iroquois, is another warm month, with an average temperature ranging between max 79.5°F (26.4°C) and min 62.2°F (16.8°C).Temperature
Iroquois registers an average high-temperature of a still moderately hot 79.5°F (26.4°C) with the arrival of August, showing minor deviation from the preceding month. In the month of August, Iroquois witnesses a consistent average low-temperature of 62.2°F (16.8°C).Humidity
In Iroquois, Illinois, the average relative humidity in August is 84%.Rainfall
In Iroquois, Illinois, in August, it is raining for 14.7 days, with typically 1.73" (44mm) of accumulated precipitation. In Iroquois, during the entire year, the rain falls for 140.3 days and collects up to 17.56" (446mm) of precipitation.Snowfall
May through October are months without snowfall in Iroquois.Daylight
In Iroquois, the average length of the day in August is 13h and 45min.On the first day of the month, sunrise is at 5:47 am and sunset at 8:05 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:23 pm CDT.
Sunshine
In Iroquois, the average sunshine in August is 9.6h.UV index
The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 5 during August leads to these instructions:
Put precautions into practice - Guidance to elude sunburn is provided. It's recommended to limit sun exposure when its radiation is at its peak during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Iroquois, IL
- Average high temperature in August: 79.5°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in August: 62.2°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in August
Iroquois, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Iroquois, IL
- Average wind speed in August: 6.2mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in August
Iroquois, IL
- Average humidity in August: 84%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Iroquois, IL
- Average rainfall in August: 1.73"
The wettest month (with the highest rainfall) is May (2.64").
The driest months (with the least rainfall) are January and February (0.79").
Average rainfall days in August
Iroquois, IL
- Average rainfall days in August: 14.7 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in August
Iroquois, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Iroquois, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.3 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
Iroquois, 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 36min
The months with the most sunshine are June and July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
Iroquois, IL
- Average sunshine days in August: 12.6 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in August
Iroquois, IL
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Iroquois, IL
- Average cloud cover in August: 34
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in August
Iroquois, 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).
