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Weather Eye: Last half of this month looking like ‘usual’ May

By Patrick Timm
Published: May 15, 2016, 6:00am

Talk about a mood swing. The month of May continues to surprise us. Take Friday afternoon with temperatures in the mid 80s, some 20 degrees above average, to Saturday afternoon temperatures that were 30 degrees cooler than on Friday.

It felt rather cool, I think, with temperatures running in the mid 50s. From air conditioning one day to maybe running a little heat in the house? Yep, spring weather in the great Northwest at its best.

Thunderstorms popped up Friday night, and lightning could be seen to the east and southeast. Not much in the rain bucket as of 4 p.m. Saturday — just some drizzle here and there. Heavier amounts fell in the central Willamette Valley and all along the Oregon Coast up to the Long Beach Peninsula. Amounts varied from a quarter-inch to more than one-half inch.

Here is what we are looking at this week: a chance of a shower today and continued cool. Monday and Tuesday, we have improving weather with highs reaching into the 70s on Tuesday. More showers and cool weather end the week, lasting probably into the weekend. So we enjoyed summer for the first portion of May, and now we enjoy “normal” weather as May should be.

As I look at the extended forecast models, I see we could find snow showers falling as low as 5,000 feet later this week, which much cooler air aloft than we have had. Remember, though, our average high for this part of May is 68 degrees, and our average low is 48 degrees.

Before Saturday, we had seven days at 80 degrees or higher and only two days below average for highs. Our average mean temperature is 7 degrees above average so far this month. With lots of upcoming days with 60-degree-plus highs, we may cut that in half. Rainfall on Saturday was nearly 1.25 inches below average with only 0.11 inch in the bucket for the month.

Patrick Timm is a local weather specialist. His column appears Tuesdays, Thursdays and Sundays. Reach him at http://patricktimm.com

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