August weather forecastOnslow, IA
August
Weather in August
August, the last month of the summer in Onslow, is also a moderately hot month, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 60.6°F (15.9°C).Temperature
With the arrival of August, Onslow's average high-temperature registers at a still moderately hot 78.6°F (25.9°C), indicating a subtle variation from the previous month. In the month of August, Onslow records a consistent average low-temperature of 60.6°F (15.9°C).Humidity
In Onslow, the average relative humidity in August is 81%.Rainfall
In Onslow, in August, it is raining for 12.5 days, with typically 1.77" (45mm) of accumulated precipitation. In Onslow, Iowa, during the entire year, the rain falls for 142.5 days and collects up to 28.27" (718mm) of precipitation.Snowfall
May through September are months without snowfall in Onslow, Iowa.Daylight
The average length of the day in August in Onslow is 13h and 50min.On the first day of August, sunrise is at 5:58 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:38 pm CDT.
Sunshine
The months with the most sunshine in Onslow are July and August, with an average of 9.9h of sunshine.UV index
In August, the average daily maximum UV index in Onslow is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 5 in August interprets into the following advice:
Take necessary precautions - Defending against sun damage is advocated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Onslow, IA
- Average high temperature in August: 78.6°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in August: 60.6°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in August
Onslow, IA
- 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 (29.9"Hg).
Average wind speed in August
Onslow, IA
- Average wind speed in August: 6.9mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in August
Onslow, IA
- Average humidity in August: 81%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Onslow, IA
- Average rainfall in August: 1.77"
The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in August
Onslow, IA
- Average rainfall days in August: 12.5 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in August
Onslow, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Onslow, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.1 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
Onslow, IA
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 9h and 54min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Onslow, IA
- Average sunshine days in August: 16.7 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in August
Onslow, IA
- 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
Onslow, IA
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Onslow, IA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
