Whatcom County, WA has a mild climate throughout the year. The summers are usually warm and dry, while winters are cool and wet. The area receives an average of 37 inches of rainfall each year, primarily in the winter months. Although there may be occasional snowfall at higher elevations in the county, snow typically doesn’t last long due to the region's mild temperatures. Most of the area experiences relatively little temperature variation throughout the year, with daytime highs rarely exceeding 75 degrees Fahrenheit (24 Celsius), even during summer months. Humidity is also low compared to other parts of Washington State. This climate makes Whatcom County an ideal place for outdoor activities and recreation all-year round.
Whatcom County, Washington gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Whatcom County averages 10 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 158 sunny days per year in Whatcom County. The US average is 205 sunny days.
Whatcom County gets some kind of precipitation, on average, 162 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 73 degrees
Winter Low: the January low is 34
Rain: averages 42 inches of rain a year
Snow: averages 10 inches of snow a year