Summer days in the 70's and 80's with cool nights in the 40's. Summer thunderstorms are common. Mild to cool temperatures through September and October. Raingear recommended during spring, summer and fall. The average weather ranges described below are at valley elevations.
Temperatures are cooler in the mountains, with more moisture.
Be aware that mountain weather changes quickly . Check the weather forecast before starting your trip. May. Snow level may remain just above valley elevation until mid-June. Warm days and cool nights prevail, with afternoon thunder showers common. Snow level gradually retreats, with mountain divides free of snow by August.