The wildfires can burrow into rich organic material, such as the vast peatlands that ring the Arctic, and smolder under the snowpack throughout the frigid winter.
At 97 degrees, Tuesday was the hottest day of the year in Santa Rosa, breaking the 1974 record high for May 26.
Abnormally hot May weather resembles midsummer with air temperatures as high as +35C.
After 100 highs, Utqiagvik marks record low temperature
The relatively warm weather, arriving a month earlier than normal, is projected to stick around for the next 10 days, potentially accelerating sea ice loss.
Fairbanks' May 10 temperature was two degrees below the daily record, while snow melt from an above-normal year is flooding Interior rivers.
Ketchikan became the first city in Alaska to hit 80 degrees this year on Saturday, as three other cities in Southeast Alaska also set temperature records.
Mother's Day will bring Arctic blasts, wintry conditions and records low temperatures for two-thirds of the US.
The heat spiked up to 108 degrees in Palm Springs, the National Weather Service said.
Heat Wave May Be One For The Record Books - Sherman Oaks, CA - With temperatures soaring into the 90s in Los Angeles, residents are advised to avoid outdoor activity.
Mercury expected to touch 42 degrees Celsius in coming days, warns met department
The United States’ northernmost city plummeted to a bone-chilling minus 20 degrees Wednesday morning, beating out the previous daily record set in 1973.
A taste of summer is in the forecast for North Texas. After a mild week, temperatures are expected to rise into the 90s this weekend through next week,...
Sizzling heat was felt in the areas of Palmdale, Palm Springs and Idyllwild. Temperatures should begin to fall gradually beginning Wednesday, but, scorching heat may still be in the forecast, meteo…
A spring heat wave drove an uptick of people to California beaches, golf courses and trails on Saturday, leading to the closure of one coastal park as authorities warned people not to swarm recreational areas for fear of igniting a deadly coronavirus surge.
YAMAL-NENETS AUTONOMOUS DISTRICT, Russia (Thomson Reuters Foundation) - The flare stack at the Yarudeiskoye gas well burns brightly through the long Arctic night, lighting up the treeless tundra in northern Russia as compressors fill the air with an incessant whine.
We went from relatively cold days and nights in late March, to warm days and warm nights in April. This means no overnight freezing of snow, and no crust conditions for skiers...yet.
"Temperatures in Britain will soar to nearly 21C later this week despite parts of the country having seen lows of -7C since the Easter bank holiday heat wave."
"Heatwave is on the rise in Telangana with temperatures soaring between 41 and 42-degree celsius in North and North-East regions of the state, said the weather officials."
Halland county in southwestern Sweden is battling heavy flooding along the banks of the Nissan and Lagan rivers, with more rain in the forecast.