Forest Grove
Oregon, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Forest Grove, OR

The last month of the summer, August, is another warm month in Forest Grove, Oregon, with temperature in the range of an average low of 51.6°F (10.9°C) and an average high of 82.6°F (28.1°C).

Temperature

The warmest month is August, with an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 51.6°F (10.9°C).

Rainfall

In Forest Grove, during August, the rain falls for 4 days and regularly aggregates up to 0.6" (16.5mm) of precipitation. Throughout the year, in Forest Grove, Oregon, there are 155 rainfall days, and 45.5" (1154.6mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Forest Grove, Oregon, the average length of the day in August is 14h.

What is the warmest month in Forest Grove?

With an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 51.6°F (10.9°C), August is the warmest month in Forest Grove, Oregon.

What is the temperature in August in Forest Grove?

In Forest Grove, in August, the average high-temperature is 82.6°F (28.1°C), and the average low-temperature is 51.6°F (10.9°C).

How many days does it rain in August in Forest Grove?

In Forest Grove, Oregon, in August, during 4 rainfall days, 0.6" (16.5mm) of precipitation is typically accumulated.

When it does not snow in Forest Grove?

April through October are months without snowfall in Forest Grove, Oregon.

What is the average length of the day in August in Forest Grove?

In Forest Grove, the average length of the day in August is 14h.
Average temperature in August - Forest Grove, OR
  • Average high temperature in August: 82.6°F

The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is January (44.7°F).

  • Average low temperature in August: 51.6°F

The month with the highest average low temperature is July (51.8°F).
The coldest month (with the lowest average low temperature) is January (31.9°F).

Average rainfall in August - Forest Grove, OR
  • Average rainfall in August: 0.7"

The wettest month (with the highest rainfall) is December (8.2").
The driest month (with the lowest rainfall) is July (0.4").

Average rainfall days in August - Forest Grove, OR
  • Average rainfall days in August: 4 days

Months with the highest number of rainy days are January and December (20 days).
The month with the lowest number of rainy days is July (3 days).

Average snowfall in August - Forest Grove, OR
  • Average snowfall in August: 0"

The month with the highest snowfall is January (5.2").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average daylight in August - Forest Grove, OR
  • Average daylight in August: 14h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).