- Over 35 locations in the Pacific Northwest and western Canada have already tied or set new all-time heat records.
- This includes both Seattle and Portland, Oregon.
- Canada appears to have shattered the nation's record high as well.
A historic heat wave has already smashed all-time records in the northwestern United States and western Canada, and it may continue to threaten more in the days ahead.
Through Monday, at least 23 locations in the northwestern U.S. and another 15 in Canada have tied or set all-time record high temperatures in this torrid heat wave.
Some of these locations have hit 110 degrees for the first time in their recorded history. Some, such as Seattle and Portland, have tied or set all-time records at least two days in a row. Some of these all-time records had stood for over 100 years.
This tally will rise over the next several days as the heat wave persists over the interior Northwest, northern Rockies and western Canada.
Here is a list of the notable all-time records that have been tied or set so far, according to the National Weather Service, Environment Canada, and various other sources.
After that, we'll list some other oddities we've seen during this heat wave.
(FORECAST: When Will Relief Arrive?)
All-Time Records List
One location in British Columbia, Canada, soared to an incredible 115.9 degrees (46.6 degrees Celsius) Sunday, then to at least 117.5 degrees (47.5 degrees Celsius) Monday, not only smashing its all-time record, but also the all-time record for Canada, which had stood since July 5, 1937.
The Dallesport Airport just across the Columbia River from The Dalles, Oregon, apparently tied an all-time record high for Washington state, soaring to 118 degrees Monday. Another location in the Olympic Peninsula also reached 118 degrees Monday.
As with all potential state or national records, a committee from NOAA will have to examine the data and the weather instruments to verify it's a legitimate record tie.
Below are some more all-time records tied or set in each location during the heat wave. The previous all-time records in each location are listed in parentheses.
This is heat more on par with Phoenix or Las Vegas rather than the typically wetter, cooler Pacific Northwest, where average highs this time of year are in the 70s.
Washington
-Bellingham: 99 on June 28 (96 on July 29, 2009)
-Dallesport Airport, across the river from The Dalles, Oregon: 115 on June 27 then 118 on June 28 (111 on July 27, 1998)
-Hoquiam: 103 on June 27 (95 on Aug. 19, 2016 and Aug. 10, 1981)
-Olympia: 105 on June 27, then 110 on June 28 (104 on July 29, 2009)
-Quillayute: 110 on June 28 (99 on Aug. 9, 1981)
-Seattle: 104 on June 27, then 108 on June 28 (103 on July 29, 2009); They also had three straight days with highs in the 100s for the first time on record. Their low of 73 on June 27 was also their hottest daily low on record at Seattle-Tacoma International Airport.
-Vancouver: Tied their all-time record on June 26 (108 on July 29, 2009), then shattered that record on June 28 with a high of 115 degrees.
Oregon
-Astoria: 101 on June 27 (101 on July 1, 1942)
-Corvallis: 110 on June 27 (109 on July 8, 1905)
-Eugene: 111 on June 27 (108 on Aug. 9, 1981)
-Hermiston: 114 on June 27 and June 28 (113 on Aug. 5, 1961)
-Hillsboro: 109 on June 27, then 114 on June 28 (108 on July 21, 2006)
-Hood River: 108 on June 27, then 109 on June 28 (108 on Aug. 18, 1977)
-McMinnville: 111 on June 27, then 114 on June 28 (110 on June 24, 1925)
-Medford: 115 on June 28 (115 on July 20, 1946)
-Portland (Airport): 108 on June 26, then 112 on June 27, then 116 on June 28 (107 on Aug. 8 and 10, 1981, and July 30, 1965)
-Portland (Downtown): 110 on June 27, then 114 on June 28 (107 on July 2, 1942)
-Redmond: 108 on June 27, then 110 on June 28 (107 on Aug. 7, 1972)
-Roseburg: 114 on June 27 (109 on Aug. 15, 2020, and July 20, 1946)
-Salem: 113 on June 27, then 117 on June 28 (108 on Aug. 9, 1981)
-Troutdale: 109 on June 26, then 112 on June 27 and 116 on June 28 (108 on Aug. 17, 1977)
(MORE: The Relationship Between This Extreme Heat Wave and Climate Change)
California
-Mt. Shasta/Yreka: 109 on June 27 (109 on July 11, 2002)
-Sandberg: 107 on June 27 (106 on June 30, 2013)
Canada
In addition to the all-time national record, fourteen other locations in Alberta, British Columbia and the Northwest Territories tied or set new all-time records so far, according to Patrick Duplessis, a Ph.D. candidate at Dalhousie University, Tyler Hamilton, a digital meteorologist at Canada's The Weather Network and Environment Canada.
Among these were a 100.9-degree Fahrenheit (38.3-degree Celsius) high Sunday near the waterfront on Vancouver Island in Victoria.
Also, a 100.6-degree Fahrenheit (38.1-degree Celsius) high Sunday in Yohin Lake crushed the hottest June temperature on record in Canada's Northwest Territories and may have been the highest in any month, there.
Other Oddities
This intense heat has lead to a number of bizarre impacts and oddities other than simply high temperatures.
Here's a brief rundown of those.
(MORE: Heat More Deadly Than Tornadoes, Flooding, Lightning)
-Outdoor pools were closed in Seattle.
-Blueberries were cooked in the intense sun.
-Roads buckled in western Washington.
-Snowmelt was so rapid bridges were washed out in Mt. Rainier National Park.
-The Portland Streetcar had to shut down service when its power cables were singed.
-A British Columbia fire department challenged residents to a water fight.
-The heat was inescapable, even in the mountains. Stampede Pass, Washington, in the Cascades east of Seattle at about 3,672 feet elevation, soared to 93 degrees on June 27.
-It wasn't just extremely hot, it was as muggy as parts of the South along the Oregon coast.
-The NWS in Las Vegas was giving odds of Portland, Oregon, not just breaking its own record, but also tying the all-time Las Vegas record high of 117 degrees. Then Salem, Oregon, did just that on June 28.
-The "heat dome" of high pressure above the ground responsible for this heat wave appeared like a breaking wave in the atmosphere, as illustrated by The Weather Channel senior meteorologist Stu Ostro.
-Forecast highs on June 28 were up to 40 degrees above average in Portland, a feat that is hard to accomplish anywhere in the summer.
-Finally, Seattle's SeaTac Airport only reached 100 degrees twice before this heat wave. On June 28, they hit triple digits at 11 a.m.
Kermic Luster rests in a cooling center at the Oregon Convention Center on June 27, 2021, in Portland, Ore. Record breaking temperatures lingered over the Northwest during a historic heatwave this weekend. (Nathan Howard/Getty Images)
The Weather Company’s primary journalistic mission is to report on breaking weather news, the environment and the importance of science to our lives. This story does not necessarily represent the position of our parent company, IBM.
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