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
Leland's weather in August, with an average high-temperature of a still warm 79.3°F (26.3°C), subtly shifts from July's 80.8°F (27.1°C). The nighttime temperature in Leland dips to a refreshing 61.9°F (16.6°C) on average during August.Humidity
In August, the average relative humidity is 84%.Rainfall
In August, the rain falls for 10.5 days. Throughout August, 0.83" (21mm) of precipitation is accumulated. Throughout the year, in Leland, there are 109.6 rainfall days, and 10.31" (262mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Leland, the average length of the day in August is 13h and 48min.On the first day of the month, sunrise is at 5:50 am and sunset at 8:12 pm. On the last day of August, in Leland, sunrise is at 6:21 am and sunset at 7:29 pm CDT.
Sunshine
In Leland, Illinois, the average sunshine in August is 9.6h.UV index
In August, the average daily maximum UV index in Leland is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What are August temperatures in Leland?
What is the average humidity in August in Leland?
How many days does it rain in August in Leland?
When it does not snow in Leland?
What is the average length of the day in August in Leland?
When is the sunrise / sunset in August in Leland?
How long on average sun shines in August in Leland?
What is the UV index intensity in August in Leland?
Average temperature in August
Leland, IL
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in August: 61.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in August
Leland, 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 (29.92"Hg).
Average wind speed in August
Leland, IL
- Average wind speed in August: 6.1mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in August
Leland, 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 (73%).
Average rainfall in August
Leland, IL
- Average rainfall in August: 0.83"
The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in August
Leland, IL
- Average rainfall days in August: 10.5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in August
Leland, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Leland, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Leland, 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 4min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Leland, IL
- Average sunshine days in August: 16.9 days
The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is May (14.2 days).
Average UV index in August
Leland, 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
Leland, IL
- Average cloud cover in August: 34
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in August
Leland, 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).
Leland, Illinois, USA
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