Leavenworth Climate
Leavenworth has a true four-season climate. It is on the eastern edge of the Cascade Mountains, creating a much drier, more continental climate that in the Puget Sound area. Leavenworth averages twenty-four inches of precipitation per year, which supports a variety of tree species including Ponderosa Pines. In the winter, temperatures are typically in the 30’s and 40’s with lows near 20. Leavenworth receives the vast majority of its annual precipitation between October and March, much of which falls as snow. It average ninety-five inches of snowfall per year and is one of Washington State’s snowiest cities. Some years during particularly harsh winters, snow can remain on the ground for months at a time, but this is not normal.
In spring, temperatures typically rise into the 60's and 70's with low temperatures in the 30's and 40's. Leavenworth's low temperatures do not average above freezing until April. Summers are warm and sunny in Leavenworth. Temperatures are typically in the 80’s to near 90 degrees, but it does occasionally reach up near the one hundred degree mark. Temperatures cool off at night to near 50 degrees. In the fall, temperatures plunge rapidly falling from an average of high of 78 degrees in September to 34 degrees in December. Check the Weather section for current conditions.