Deer Island, OR has a mild temperate climate with warm summers and cool winters. The average high temperature during the summer months is around 77°F and the average low temperature during the winter months is around 40°F. Rainfall in Deer Island is fairly well distributed throughout the year, averaging around 38 inches annually. The area also experiences some snowfall each winter, but it rarely accumulates for long periods of time. In general, Deer Island enjoys mostly sunny days with mild temperatures and moderate rainfall.
Deer Island, Oregon gets 60 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Deer Island averages 2 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 140 sunny days per year in Deer Island. The US average is 205 sunny days.
Deer Island gets some kind of precipitation, on average, 179 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 79 degrees
Winter Low: the January low is 34
Rain: averages 60 inches of rain a year
Snow: averages 2 inches of snow a year