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
At the onset of August, Manhattan records an average high-temperature of a still warm 80.2°F (26.8°C), showing little deviation from the preceding month. An average nighttime temperature of 63.3°F (17.4°C) is witnessed throughout August.Humidity
In August, the average relative humidity in Manhattan is 81%.Rainfall
In Manhattan, in August, during 15.2 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Manhattan, Illinois, during the entire year, the rain falls for 149.8 days and collects up to 31.26" (794mm) of precipitation.Snowfall
May through September are months without snowfall in Manhattan.Daylight
In August, the average length of the day is 13h and 47min.On the first day of the month, sunrise is at 5:47 am and sunset at 8:08 pm. On the last day of August, in Manhattan, sunrise is at 6:17 am and sunset at 7:26 pm CDT.
Sunshine
With an average of 9.6h of sunshine, August has the most sunshine of the year in Manhattan.UV index
The average daily maximum UV index in August in Manhattan is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What are August temperatures in Manhattan?
What is the average humidity in August in Manhattan?
How much does it rain in Manhattan in August?
When it does not snow in Manhattan?
How many hours of daylight does Manhattan have in August?
When is the sunrise / sunset in August in Manhattan?
What month has the most sunshine in Manhattan?
How long on average sun shines in August in Manhattan?
What is the UV index intensity in August in Manhattan?
Average temperature in August
Manhattan, IL
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in August: 63.3°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in August
Manhattan, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Manhattan, IL
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Manhattan, IL
- Average humidity in August: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in August
Manhattan, IL
- Average rainfall in August: 2.6"
The wettest month (with the highest rainfall) is May (4.21").
The driest months (with the least rainfall) are February and December (1.61").
Average rainfall days in August
Manhattan, IL
- Average rainfall days in August: 15.2 days
The months with the highest number of rainy days are June and July (17.3 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in August
Manhattan, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Manhattan, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.3 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
Manhattan, 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 August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Manhattan, IL
- Average sunshine days in August: 12.9 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in August
Manhattan, 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
Manhattan, IL
- Average cloud cover in August: 34
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in August
Manhattan, IL
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Manhattan, Illinois, USA
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