Brookings effect
n.— «Brookings, just north of the California border along the Oregon coast, is known for its sometimes very un-coastal weather that has come to be called the “Brookings effect.”» —“Brookings Oregon bakes at 108 degrees” by Helen Jung, Jacques von Lunen Oregonian (Portland, Oregon) July 10, 2008. (source: Double-Tongued Dictionary)
I’ve seen this over the years, both hot and cold extremes. We visit family there semi-annually. We’ve seen snow at sea level twice over the years, and have had our share of hot days in the summer.