See how much longer summer is in your town

[dalton99a]

https://www.washingtonpost.com/climate-environment/interactive/2025/longer-summer-hot-temperatures-map/

See how much longer summer is in your town
By Kasha Patel and Naema Ahmed
August 24, 2025 at 6:00 a.m. EDT

In recent decades, sweat-inducing temperatures have been arriving earlier and ending later in the year. An analysis of U.S. weather data shared with The Washington Post shows which places are experiencing notably longer summer seasons than they were three decades ago. Temperatures are spiking to levels typically seen in June earlier than expected and lingering longer at the end of the season.

The analysis, conducted by climatologist Brian Brettschneider, examined the hottest 90 days of the year from 1965 to 1994 and compared their frequency over 1995 to 2024. He found that the temperatures that used to kick off the hottest three months of the year are expanding beyond the calendar definition of summer.

The southern United States has seen the most warming, gaining an extra two weeks overall of hot summer temperatures. Key West, Florida, for example, is experiencing summer temperatures for 39 days longer than three decades ago.

The Mid-Atlantic and Pacific Northwest have seen a moderate expansion. Summer temperatures are lasting about 9 days longer in D.C. Meanwhile, New York City and Seattle see about 6 more days than 30 years ago.

Cities along the coast of California have experienced more summer heat, too. Many coastal areas don’t typically see peak summer until the end of August because of local wind and sea surface temperature patterns, but a lot of locations have expanded their season. For example, San Francisco has turned up the heat for a whopping 42 days longer.

The Midwest has seen the least lengthening of the season, with a few areas shrinking their summer. For instance, much of Iowa has seen its hottest temperatures extend about 5 days longer than before. Whereas summer temperatures in Great Falls, Montana, are stopping four days earlier.








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And get ready to pay more for electricity

[GusBob]

1. 38 degrees here and the first Maples are turning colors. Anecdotal

60’s for highs all week, under 40 for lows
Geese are on the move, male hummingbirds are gone, robins too

Northern Midwest

[Bernardo de La Paz]

2. Dry where you are? Trees can "turn colors" in response to drought. Then in the actual fall there can be less color. nt

[GusBob]

3. No its Fall

The Maples always turn first. It’s been a wet summer

[Bernardo de La Paz]

4. Charts have logical inconsistency. In every place, there are ALWAYS exactly 90 hottest days in any year.

The excerpt does not clarify the methodology much. There's quite a bit of hand-waving about it.

[doc03]

5. It's been a hot wet summer in Ohio. The next 10-day forecast looks great the high temperatures

run from 71 to 81.