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Longest heat wave of year likely

Longest heat wave of year likely

by KGW Meteorologist Rod Hill

Bio | Email | Follow: @kgwrodhill

kgw.com

Posted on September 10, 2013 at 9:10 PM

Updated Wednesday, Sep 11 at 1:49 PM

Tuesday's high of 91 degrees at PDX becomes the ninth day of 90 degree heat this summer.  Other Tuesday highs include: Salem at 92, Vancouver  at 91, Troutdale at 95, Hillsboro at 91 and McMinnville at 94.

Forecasting the return of cooler Pacific air is always tricky, but forecast models suggest 90 degree temperatures will be possible through Saturday.  Several record highs will be in jeopardy.  The PDX record high for Sept. 11th is 94 degrees and the record for this Thursday is 92 degrees. 

Perhaps most impressive about our mini heatwave is that 3 or more 90 degree days in a row would become the longest hot streak of our summer season! 

The average number of September 90 degree days is two, but the most on record is 8 days, back in the summer of 1974.  The average number of 90 degree days for the year is 13. 

You may recall the summer of 2009, when PDX set the all-time record with 24 days that reached 90 degrees.

Stay cool, drink plenty of water and take comfort in the fact that  the sunset starting Wednesday the 11th will be before 7:30, meaning longer nights will bring hours of time to cool off.

Meteorologist Rod Hill, follow me @

www.facebook.com/kgwrodhill

 

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