Sequim rainfall is 16 inches per year, which is about the same as Los Angeles, California. Seattle gets three times as much or 45 inches per year, and Port Angeles gets about 25 inches of rainfall each year. [Read more about how the Sequim Blue Hole formed.]
This map shows that Sequim gets an average of 16 inches of rain annually, and in an uneven set of concentric circles extending out from Sequim, the rainfall increases dramatically into the Olympic Mountains to the south until the rainfall reaches 200 inches annually. Enlarge this graphic by clicking your mouse on the image. The Sequim rainfall slowly increases as you drive west to Port Angeles, but the rainfall really starts to increase when you are 10 minutes west of Port Angeles and drive further west on Highway 112 or Highway 101.
The average annual temperature in Sequim is 48.7 degrees F. The average low temperature in January and February is 32 degrees, and the average high temperature is 47 and 49 in January and February. The average high in July and August is 70 degrees. This is a climate without the extreme temperatures of other states.
We do not get snow very often, at least snow that sticks very long.
Sequim Rainfall and the Blue Hole
No wonder Sequim is such an incredibly pleasant climate, and no wonder so many retirees have been quietly moving to Sequim for many years. There really is a Sequim blue hole!