Chehalis, Washington gets 52 inches of rain, on average, per year. The US average is 38 inches of rain per year. Chehalis averages 2 inches of snow per year.

What is the driest city in Washington state?

In western Washington, the driest location is the rainshadow of the Olympics, where some locations, such as Sequim, enjoy 15-17 inches of precipitation per year.

Does it usually snow in Washington State?

The weather is relatively mild in Western Washington. Summer days rarely rise above 79° (26° C) and winter days are seldom below 45° (8° C) during the day. Snow is rare, but winter temperatures can easily dip into the 20s and 30s (-6° to -1° C) at night.