Ontario
Oregon, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Ontario, OR

August, the last month of the summer, in Ontario, is another hot month, with temperature in the range of an average high of 91°F (32.8°C) and an average low of 54°F (12.2°C).

Temperature

In Ontario, the average high-temperature is essentially the same as in July - a still tropical 91°F (32.8°C). In Ontario, Oregon, the average low-temperature is 54°F (12.2°C).

Rainfall

August is the month with the least rainfall, with 0.3" (7.1mm) of accumulated precipitation.

Snowfall

In Ontario snow does not fall in April through October.

Daylight

In Ontario, the average length of the day in August is 13.9h.

What is the temperature in August in Ontario?

The average high-temperature, in August, is 91°F (32.8°C), while the average low-temperature is 54°F (12.2°C).

How much does it rain in Ontario in August?

During August, Ontario regularly aggregates up to 0.3" (7.1mm) of precipitation.

What is the driest month in Ontario?

August is the month with the least rainfall, with 0.3" (7.1mm) of accumulated precipitation.

When it does not snow in Ontario?

In Ontario, Oregon, snow does not fall in April through October.

What is the average length of the day in August in Ontario?

In Ontario, the average length of the day in August is 13.9h.
Average temperature in August - Ontario, OR
  • Average high temperature in August: 91°F

The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in August: 54°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average rainfall in August - Ontario, OR
  • Average rainfall in August: 0.3"

The wettest month (with the highest rainfall) is December (1.4").
Driest months (with the lowest rainfall) are July and August (0.3").

Average snowfall in August - Ontario, OR
  • Average snowfall in August: 0"

The month with the highest snowfall is December (5").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average daylight in August - Ontario, OR
  • Average daylight in August: 13.9h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 8.9h).