August weather forecastOntario, OH
August
Weather in August
August, the last month of the summer in Ontario, is also a moderately hot month, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 60.3°F (15.7°C).Temperature
The arrival of August brings an average high-temperature of a still moderately hot 78.3°F (25.7°C), closely following the temperature pattern of July. An average temperature of 60.3°F (15.7°C) is recorded during the nights in August.Humidity
In Ontario, the average relative humidity in August is 82%.Rainfall
In August, the rain falls for 14 days. Throughout August, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 136.4 rainfall days, and 13.15" (334mm) of precipitation is accumulated.Snowfall
In Ontario, snow does not fall in May through October.Daylight
In August, the average length of the day in Ontario is 13h and 45min.On the first day of the month, sunrise is at 6:27 am and sunset at 8:45 pm. On the last day of August, in Ontario, sunrise is at 6:57 am and sunset at 8:03 pm EDT.
Sunshine
The months with the most sunshine in Ontario are July and August, with an average of 10.1h of sunshine.UV index
June and August, with an average maximum UV index of 6, are months with the highest UV index in Ontario. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 6 in August translates into the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Ontario, OH
- Average high temperature in August: 78.3°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in August: 60.3°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in August
Ontario, OH
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Ontario, OH
- Average wind speed in August: 5.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in August
Ontario, OH
- Average humidity in August: 82%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April, October and November (78%).
Average rainfall in August
Ontario, OH
- Average rainfall in August: 1.26"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in August
Ontario, OH
- Average rainfall days in August: 14 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in August
Ontario, OH
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Ontario, OH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Ontario, OH
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 10h and 6min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in August
Ontario, OH
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in August
Ontario, OH
- Average UV index in August: 6
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Ontario, OH
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Ontario, OH
- Average visibility in August: 5mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
