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Meteorological summer ends drier than normal

Meteorological summer ends drier than normal

by KGW Meteorologist Rod Hill

Bio | Email | Follow: @kgwrodhill

kgw.com

Posted on September 3, 2013 at 10:04 AM

Updated Tuesday, Sep 3 at 11:46 AM

PORTLAND -- Although the Autumnal Equinox will not turn the calender to Fall until September 22nd, the period of time considered the "meteorological summer" ended August 31st.

KGW Meteorologist Rod Hill's summer forecast for June, July and August turned out to be correct:  "Last spring, I told you to expect a nice summer with drier than normal weather and no long stretches of extreme heat.  In fact, my prediction of less than normal 90 degree days is also true so far," Hill said.

Here is the summer report card for June - August:

Average high temperature:  80 degrees - one degree above normal

Average low temperature:  58 degrees - one degree above normal

Rainfall:  2.13 inches - below normal by .89 inches

Thunderstorms in the metro area:  3 days (not counting Monday night)

Number of 90 degree days:  8 (normal through October is 13 days)

Hottest temperature:  97 degrees on June 30th

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High humidity as been the story of our summer weather.  The average relative humidity for August was 63 percent, compared to 58 percent back in August of 2012.  The humid air has been brought by several long stretches of a southwest flow pattern aloft with a weak low pressure trough over the area, centered offshore.

A return to warmer, sunny days are expected this coming weekend.  Portland may reach 90 degrees through the first week of October.

Meteorologist Rod Hill, follow me @

www.facebook.com/kgwrodhill

 

 

 

 

 

 

 

 

 

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