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
The transition into August shows a subtle variation to a still warm 80.1°F (26.7°C) from July's 81.9°F (27.7°C) in the average high-temperature. Nightly temperatures drop to an average low of 61.2°F (16.2°C) in August.Humidity
In August, the average relative humidity is 77%.Rainfall
In O'Leary, in August, it is raining for 13.3 days, with typically 2.2" (56mm) of accumulated precipitation. In O'Leary, during the entire year, the rain falls for 114 days and collects up to 21.46" (545mm) of precipitation.Snowfall
In O'Leary, snow does not fall in May through September.Daylight
In O'Leary, the average length of the day in August is 13h and 52min.On the first day of August in O'Leary, sunrise is at 6:16 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:59 pm CDT.
Sunshine
In August, the average sunshine in O'Leary is 9.7h.UV index
The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 5 during August, leads to the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. 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
What are August temperatures in O'Leary?
What is the average humidity in August in O'Leary?
How many days does it rain in August in O'Leary?
When it does not snow in O'Leary?
How many hours of daylight does O'Leary have in August?
When are sunrise and sunset in August in O'Leary?
How long on average sun shines in August in O'Leary?
What is the UV index reading in August in O'Leary?
Average temperature in August
O'Leary, IA
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in August: 61.2°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (11.5°F).
Average pressure in August
O'Leary, IA
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in August
O'Leary, IA
- Average wind speed in August: 8mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in August
O'Leary, IA
- Average humidity in August: 77%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (66%).
Average rainfall in August
O'Leary, IA
- Average rainfall in August: 2.2"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in August
O'Leary, IA
- Average rainfall days in August: 13.3 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in August
O'Leary, IA
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
O'Leary, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
O'Leary, IA
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 9h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in August
O'Leary, IA
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in August
O'Leary, 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, February, November and December (UV index 2).
Average cloud cover in August
O'Leary, IA
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in August
O'Leary, IA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
O'Leary, Iowa, USA
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