August weather forecastMendota, IL
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Mendota, Illinois, with an average temperature varying between 62.1°F (16.7°C) and 79.2°F (26.2°C).Temperature
The commencement of August brings an average high-temperature of a still moderately hot 79.2°F (26.2°C), marking an inconsequential divergence from July. In Mendota, an average temperature of 62.1°F (16.7°C) is noted during August nights.Humidity
In August, the average relative humidity in Mendota is 84%.Rainfall
In Mendota, during August, the rain falls for 12.2 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Mendota, during the entire year, the rain falls for 107.9 days and collects up to 9.96" (253mm) of precipitation.Snowfall
In Mendota, snow does not fall in May through September.Daylight
In Mendota, the average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:30 pm CDT.
Sunshine
The months with the most sunshine are June through August, with an average of 9.5h of sunshine.UV index
In Mendota, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 5 in August translates into these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mendota, IL
- Average high temperature in August: 79.2°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in August: 62.1°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 (16.7°F).
Average pressure in August
Mendota, 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 (29.91"Hg).
Average wind speed in August
Mendota, IL
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in August
Mendota, 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
Mendota, IL
- Average rainfall in August: 0.87"
The wettest month (with the highest rainfall) is May (1.42").
The driest months (with the least rainfall) are January, February, November and December (0.51").
Average rainfall days in August
Mendota, IL
- Average rainfall days in August: 12.2 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in August
Mendota, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Mendota, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.6 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
Mendota, 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 30min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
Mendota, IL
- Average sunshine days in August: 15.3 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in August
Mendota, 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
Mendota, IL
- Average cloud cover in August: 35
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in August
Mendota, 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).
