PORTLAND -- The first full day of summer should see partly cloudy skies and a high temperature around 75 degrees.
The summer solstice occurs Saturday at 3:51 a.m. PDT. At that time, the earth will be tilted so that the north pole is at its closest point to the sun.
As a result, there will be more minutes of sunlight in the northern hemisphere than there are at any other time of the year.
This year, metro valley could experience its first hot summer since the record-hot 2009.
Portland and much of the Northwest will melt under above normal temperatures this June, July and August, if the National Weather Service summer outlook is correct.
The word solstice is derived from the Latin sol-stitium, for sun standing. The summer solstice is the time of the year when the sun stops its northern climb and stands briefly before turning back toward the equator.
As seen from Portland, the sun will reach its highest northern point in the sky, at 67.54 degrees from the horizon, on June 20 and 21 at 1:12 p.m. From March 21 until September 24, there are more hours of daylight than darkness. After June 21, the days will gradually grow shorter until December 21, the winter solstice.
The opposite is true across the southern hemisphere, where winter is arriving and June 21 will be the shortest day of the year.
The public is invited to an OMSI Star Party to celebrate the new season. Viewing will be Saturday evening at 9:00 p.m. at Rooster Rock and L.L. "Stub" Stewart Parks. For more information call, 503-797-4000.
Happy Summer Solstice!
Meteorologist Rod Hill, follow me @
The above report is courtesy of Jim Todd, OMSI Director of Space Science Education.