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 onset of August brings an average high-temperature of a still warm 75.9°F (24.4°C), nearly matching the July temperature. Ontario's temperature drops to an average low of 64.4°F (18°C) during the nights of August.Humidity
The months with the lowest humidity in Ontario are August and September, with an average relative humidity of 75%.Rainfall
In August, the rain falls for 18.2 days. Throughout August, 3.03" (77mm) of precipitation is accumulated. In Ontario, during the entire year, the rain falls for 167.9 days and collects up to 31.18" (792mm) of precipitation.Snowfall
June through September are months without snowfall in Ontario, New York.Daylight
In August, the average length of the day in Ontario is 13h and 54min.On the first day of August, sunrise is at 6:00 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:45 pm EDT.
Sunshine
In Ontario, the average sunshine in August is 10.5h.UV index
The months with the highest UV index in Ontario are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. 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 is the temperature in August in Ontario?
What are the least humid months in Ontario?
What is the average humidity in August in Ontario?
How much does it rain in Ontario in August?
When it does not snow in Ontario?
How many hours of daylight does Ontario have in August?
When are sunrise and sunset in August in Ontario?
How many hours of sunshine does Ontario have in August?
What are the months with the highest UV index in Ontario?
What is the UV index reading in August in Ontario?
Average temperature in August
Ontario, NY
- Average high temperature in August: 75.9°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in August: 64.4°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 (20.8°F).
Average pressure in August
Ontario, NY
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Ontario, NY
- Average wind speed in August: 8.3mph
The windiest month (with the highest average wind speed) is January (13.2mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in August
Ontario, NY
- Average humidity in August: 75%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are August and September (75%).
Average rainfall in August
Ontario, NY
- Average rainfall in August: 3.03"
The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in August
Ontario, NY
- Average rainfall days in August: 18.2 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in August
Ontario, NY
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Ontario, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (15.4 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, NY
- 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 0min).
- Average sunshine in August: 10h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in August
Ontario, NY
- Average sunshine days in August: 10.7 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in August
Ontario, NY
- Average UV index in August: 6
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Ontario, NY
- Average cloud cover in August: 27
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in August
Ontario, NY
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Ontario, New York, USA
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