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 from July to August sees an average high-temperature of a still moderately hot 79.2°F (26.2°C), indicating a minor variance from the prior month. Ottawa, during the month of August, experiences an average low-temperature of 61.2°F (16.2°C).Humidity
In Ottawa, the average relative humidity in August is 82%.Rainfall
In Ottawa, in August, during 15 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Ottawa, during the entire year, the rain falls for 161 days and collects up to 27.24" (692mm) of precipitation.Snowfall
In Ottawa, Ohio, snow does not fall in June through September.Daylight
In August, the average length of the day is 13h and 46min.On the first day of August, sunrise is at 6:32 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 8:09 pm EDT.
Sunshine
In Ottawa, Ohio, the average sunshine in August is 9.6h.UV index
The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In August, an average UV index of 5 transforms into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. 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 the temperatures in August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
What is the average length of the day in August?
When are sunrise and sunset in August?
How long on average sun shines in August?
How high is the UV index in August?
Average temperature in August
Ottawa, OH
- Average high temperature in August: 79.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.1°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 (19.8°F).
Average pressure in August
Ottawa, OH
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Ottawa, OH
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Ottawa, OH
- Average humidity in August: 82%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Ottawa, OH
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in August
Ottawa, OH
- Average rainfall days in August: 15 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in August
Ottawa, OH
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Ottawa, OH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Ottawa, OH
- 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 18min).
- Average sunshine in August: 9h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in August
Ottawa, OH
- Average sunshine days in August: 11.6 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in August
Ottawa, OH
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Ottawa, OH
- Average cloud cover in August: 34
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in August
Ottawa, OH
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Ottawa, Ohio, USA
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