"Currently, the earliest 90-degree day on record for Seattle is May 17, 2008," added Gilbert. The prospects for a 90-degree day in the Emerald City are lower compared to Portland, but the chance is not zero on Sunday, forecasters say.
Seattle also set a daily record high on Saturday, reporting a high of 86 that topped the old record of 85 from 2018. Seattle's temperatures had been similarly cool to start May but will also camp out in the 80s into Monday, which is about 20 degrees above historical averages in the mid-60s. Portland reached a second consecutive daily record high on Saturday, breaking the 1973 record of 92 by a single degree. The earliest day on record above 90 degrees for the area occurred May 6, 1987," said Gilbert. "Typically, Portland encounters its first reading of 90 or higher in the middle of June. Record-challenging highs in the lower 90s are expected to persist right into Monday. However, a period of exceptional warmth began Friday, as the mercury touched the 90-degree mark for the first time this year and broke the 1973 daily record of 87. "It will feel like Mother Nature flipped a switch as the jet stream bulges northward across the Western states," said AccuWeather Meteorologist Mary Gilbert.įrom May 1-10 in Portland, all but three days featured temperatures at or below historical averages, which are in the upper 60s at this point. Have the app? Unlock AccuWeather Alerts™ with Premium+.The rising temperatures are a sudden pattern change across the region, where temperatures had been largely below historical averages at the start of May.
by the National Weather Service, while its Canadian equivalent, Environment Canada, issued special heat statements in portions of Alberta, British Columbia and Saskatchewan. Ahead of the warmup, heat advisories were issued in parts of the western U.S.
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