[Article by Ryan Porter of Snoqualmie Weather]
We’ve had a chilly start Sunday with our first frost, but today should still make for a great last dry weekend run to the pumpkin patch ahead of an otherwise quiet Autumn week ahead. Cool and crisp today with high pressure in place. Highs should reach mid-40°s.
Since 1981, Snoqualmie Valley averages 39 days a year with at or below freezing temperatures vs. an average of 27 per year at Sea-tac airport over the same period.
To recap the last couple of days, warmer air invaded much of the southern half of Washington on Friday, busting up chances for significant snowfall at Snoqualmie Pass or to see a few wet flakes here in the foothills. However, several places in the northern half of the state had a very early glimpse of winter.
I was fortunate enough to be in Spokane Friday evening (23rd) to witness their snowiest October day ever (6.2″), breaking a record dating back to 1957. Nothing in E. WA along I-90 until about 40 miles from city limits and temperatures rapidly dropped 10° to below freezing on the approach in. A little white-knuckle driving.
Back at home, we’ll likely drop below freezing again tonight but warm up quicker Monday morning, perhaps even before dawn as mother nature’s blanket (aka cloud cover) increases overhead. Northerly flow will continue into Monday.
For Tuesday, a warm front clips southern B.C. that may bring light rain to the northern part of WA but looks to remain dry locally.
For the remainder of the workweek, a series of weak disturbances brush by, but it’s looking like we remain mostly dry.
A better chance for rain and breezy conditions looks to return just in time for Halloween:(
Be safe and have a great week!