What to expect from Seattle-area weather after two record-breaking months of cool and humid weather

After the coolest April and May in decades, western Washington is expecting another month of cooler and wetter weather, according to the Climate Prediction Center’s 30-day forecast for June.

So the adage that summer in Seattle doesn’t start until July 5 seems to come true.

That doesn’t mean every day will be cold and rainy, but overall the month should be cooler and wetter than usual, said deputy state climatologist Karin Bumbaco.

You know, kind of like the spring we’ve had so far.

The Emerald City experienced its third coldest April on record in 45 years and the 13th coldest on record, according to Seattle’s National Weather Service.

May ended up being the second wettest and seventh coldest on record, with 3.82 inches of rain and an average temperature of 52.6 degrees, according to meteorologist Carly Kovacik.

By the end of May, Seattle had only seen six hours with temperatures above 70 degrees, compared to last year when we had 80 hours at this time or 2019 when we saw 103, the weather service said on Twitter.

But that could be a different story as we head into summer, according to Bumbaco. The seasonal outlook for June, July and August shows equal chances of having a summer with warmer, cooler or the same as usual temperatures. The region is likely to receive less summer precipitation than usual. In eastern Washington, the Climate Prediction Center predicts slightly higher chances of above-normal temperatures.

So what about the rest of this week and weekend?

After a dry Thursday morning, showers and thunderstorms are expected in the afternoon and evening, particularly in the Cascades and foothills but also in the surrounding region, Kovacik said.

Some of them could be strong with frequent lightning, brief heavy rains and hail, she said.

Friday is expected to be rainy with a few thunderstorms, then “everything else for the weekend looks pretty wet with the wettest night Saturday through Sunday,” Kovacik said.

But wait, she didn’t want to leave us hopeless.

“It looks like there could be a brief dry spell on Tuesday and Wednesday,” she said.