Mother's day brings more cool showery weather to the Northwest, but this time, it gets blown out by a long warm spell that transforms into a hot weather. If it seems early for 90° weather, I think it's because it's been so cool for so long. April 2008 was the coolest April in the Willamette Valley since the mid-70s. People aren't mentally prepared for the weather to get so warm so suddenly. Here's a look at the first 90° day of the last few years:

 

 So it's certainly not unusual to get a 90° day or two in May. In fact most of Portland's high temperature records are in the 90s in May. If the warm to hot weather is a shock, the dry weather should be too. Portland's had a dry spell drought since late January!

 

If you're a cool weather fan, enjoy the weekend, because the heat is on after that!

 

Matt Zaffino

Chief Meteorologist

KGW Newschannel 8

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