Tri-City, OR has a mild climate throughout the year with hot and dry summers. The summers are usually sunny and warm, with temperatures ranging from mid-80s to mid-90s Fahrenheit. The winters are cool and wet, with temperatures typically falling into the 40s or 50s Fahrenheit. Snowfall is rare in Tri-City, but does occur in the colder months. There is also significantly less precipitation during the summer months than in other parts of Oregon. This provides an ideal climate for outdoor activities such as hiking, fishing, and swimming throughout much of the year.
Tri-City, Oregon gets 35 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Tri-City averages 2 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 175 sunny days per year in Tri-City. The US average is 205 sunny days.
Tri-City gets some kind of precipitation, on average, 144 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 85 degrees
Winter Low: the January low is 36
Rain: averages 35 inches of rain a year
Snow: averages 2 inches of snow a year