Trigger warning for sweaty Californians: In recent days, the foggy timber town of Eureka on the Humboldt Bay has tied records for the daily high temperature twice. It got (barely) into the 70s!
On July 22, the mercury hit 73 degrees, tying the record set on July 22, 2007.
Three days later, the high temperature in Eureka was 70 degrees, matching the record daily high recorded on July 25, 1984.
“That’s warm for us,” Johnathon White, a meteorologist for the National Weather Service in Eureka, deadpanned Wednesday, noting with a chuckle that many folks there spend their summers in hoodies.
I often wistfully check the forecast there, one of the most reliably cool places in California during the dog days of summer.
There, the average summertime highs are in the low 60s, White said, cheerfully adding that it was a little drizzly Wednesday morning. This weekend, daytime highs in Eureka will be in the mid-to-upper 60s — cooler even than San Francisco, so famed for its chilly summers.
For huge swaths of California, the National Weather Service has issued extreme heat warnings through this weekend, and much of the state is perspiring through an unusually humid summer thanks to warmer ocean temperatures, tropical storms offshore and surges of monsoonal moisture.
Wildfires are raging across much of the American West — including Oregon and Washington — and in Canada.
And while scientists say a so-called “super” El Niño brewing in the Pacific could, in the coming months, bring much-needed precipitation, the Western U.S. still is “suffering the consequences of a hot winter and meager snowpack, in part thanks to El Niño’s polar-opposite sister, La Niña, which brought cool ocean water to South America’s Pacific coast and drier conditions to the Southern U.S.,” my colleague Noah Haggerty reported last week.
In Eureka, a city of some 25,000 people in Humboldt County, there’s an oft-repeated saying about residents: “They don’t tan. They rust.”
That’s because the air is usually so misty and salty.
The cooler summer weather is, in large part, because of the local geography. When it is hot inland, warm, thinner air there rises in the atmosphere, and cold marine air is sucked in, like a vacuum, to fill the void. The warmer air aloft acts like a lid, trapping the heavier, cooler air, which can’t easily flow over mountains.
The highest temperature recorded in Eureka is 87 degrees, according to the weather service. The mercury hit that number three times: in October 1993, September 2017 and September 2020.
According to Climate Central, a nonprofit research group, the average summer temperature in Eureka rose 1.6 degrees between 1970 and 2025, to about 58.5 degrees.
Though the overwhelming majority of U.S. cities have had shorter, hotter winters over the last 50 years because of climate change, Eureka is one of the very few to buck the trend, with its winters becoming slightly colder, per Climate Central. Since 1970, the average winter temperature in Eureka has dropped 1.3 degrees.
White, who grew up near Atlanta, said he can’t complain about the mild weather in Eureka, where the National Weather Service forecast office is set on little Woodley Island.
“A lot of times in the summer, we have the AC turned off at our office. We can just open a window and that helps,” he said. But with temperatures near 70 and the fog not as thick, he said, “it’s kind of funny — we turned our AC on this week. It gets warm in here just from the sun heating the building.”
Today’s top stories
What else is going on
This morning’s must-read
For your downtime
A question for you: What are your favorite summer destinations in California?
Email us at , and your response might appear in the newsletter this week.
And finally ... your photo of the day
Today’s great photo features yummy birthday cake from pastry chef Rose Wilde, who breaks down the best way to slice cake.
Hailey Branson-Potts, staff writer Hugo Martín, assistant editor, fast break desk Kevinisha Walker, multiplatform editor Andrew Campa, weekend writer Karim Doumar, head of newsletters Shi Bradley, audience intern
How can we make this newsletter more useful? Send comments to . Check our , and the on .