CLIMATE OVERVIEW. Canyonville, Oregon, gets 34 inches of rain per year. The US average is 39. Snowfall is 2 inches. The average US city gets 26 inches of snow per year. The number of days with any measurable precipitation is 93. On average, there are 180 sunny days per year in Canyonville, Oregon. The July high is around 87 degrees. The January low is 35. Sperling's comfort index for Canyonville is a 78 out of 100, where a higher score indicates a more comfortable year-around climate. The US average for the comfort index is 54.