| | Extreme Temperature Diary- Monday December 15th, 2025/Main Topic: Bah Humbug- Rest of December Looking Warm for Most of Lower 48 States – Guy On Climate
Dear Diary. It’s interesting to witness what has been happening to the lower 48 states this December as the world sits at about +1.3°C above preindustrial conditions. That’s still cool enough to permit frigid conditions to occur for the northern and eastern half of the nation for the first half of December:
This has been a striking, and strikingly persistent, pattern for much of December: sharp cold toward the Midwest and Northeast, and unusual warmth from the Rockies westward. (But not in central California, where unusually chilly air and "tule fog" have been in place for days). — Bob Henson (@bhensonweather.bsky.social) 2025-12-12T20:41:51.881Z
In my neck of the woods in Atlanta, officially the temperature got down to 20°F from the latest arctic blast into the United States this morning, the coldest of the season thus far, but that is nowhere near the record daily low of 11°F set in 1901. Yes, the first two major Arctic outbreaks have produced hundreds of daily low mins, mainly in the Midwest, but by far western warmth has outweighed eastern chill this month so far:
 From:
Daily Weather Records | Data Tools | Climate Data Online (CDO) | National Climatic Data Center (NCDC)
Yes, this is how global warming statistically works. Areas chilled by cold weather patterns as of 2025 are not as significantly cold as nearby lands under warm weather patterns that are similar in square acreage during long periods of time, say a month or more.
Relative increase of record high maximum temperatures compared to record low minimum temperatures in the U.S. – Meehl – 2009 – Geophysical Research Letters – Wiley Online Library
A big warming trend is already underway for most areas chilled by this morning’s Arctic blast. In ten days by Christmas, we will see a heat dome established over the southern half of the country:
  
I have no doubt that thousands of more record maxes will occur from this pattern. Just how many remains to be seen, which I will be reporting shortly after the new year. In the meantime, bah humbug! Yes, I’m dreaming of a white Christmas as well as most people in snow belt areas, but this weather pattern driven by climate change won’t help.
Here are some “ETs” recorded from around the planet the last couple of days, their consequences, and some extreme temperature outlooks, as well as any extreme precipitation reports:
I don't want to say I told y'all.
But...
thebulletin.org/2024/08/project-2025-the-right-wing-conspiracy-to-torpedo-global-climate-action/ — Michael E. Mann (@michaelemann.bsky.social) 2025-08-05T23:50:24.155Z
A positive note: The 1980s Coastal Barrier Resources Act made “3.8 million acres of barrier islands ineligible for federal flood insurance, discouraging development. Studies since show that has saved taxpayers close to a billion dollars a year.”
Read more at: www.miamiherald.com/news/local/e... — Dr. Jeff Masters (@drjeffmasters.bsky.social) 2025-12-15T15:04:28.411Z
📽️
State of Climate Action 2025
We need to take urgent #ClimateAction to avoid the worst of #ClimateChange!
PL RP 🩷💚💙 Thank you!
full #video▶️ youtu.be/SKx21eLLUqs
report 📖 wri.org/research/sta...
#climate #environment #cleanenergy #EndFossilFuels #ClimateChangeIsReal #Klima #ClimateActionNow — My Zero Carbon #ClimateAction (@myzerocarbon.org) 2025-12-15T07:14:39.311Z
What your cheap clothes cost the planet #Climate — Climate Tracker (@climate.skyfleet.blue) 2025-12-15T10:11:13.939Z
A pocket of very warm air (relative to average) over the North Pole enabled highs to reach above freezing Sunday. Meanwhile temps in the Midwest struggled to get above zero.
Upside down day. — Jeff Berardelli (@weatherprof.bsky.social) 2025-12-15T03:28:51.167Z
Pineapple Express will deliver a barrage of tropical fire hoses directed at the US West Coast over the next two weeks. Pockets of 12-18” of rain and flash flooding. The first round hits the Seattle Area early this week, as rivers are already at historic levels. Be ready to take immediate action. — Jeff Berardelli (@weatherprof.bsky.social) 2025-12-14T04:37:54.132Z
— Dr Paul Dorfman (@drpauldorfman.bsky.social) 2025-12-15T10:23:07.423Z
Fracking to extract gas is expensive. New pipelines are expensive. Supercooling gas into liquid (LNG) is expensive. LNG tankers are expensive. #Climate disasters are expensive. Solar and batteries are cheap. See the problem with Eby's #LNG schemes? www.pv-magazine.com/2025/12/12/b... #bcpoli — Climate Justice Victoria (@climatejusticeyyj.bsky.social) 2025-12-14T20:32:30.135Z
Green stocks are booming as artificial intelligence powers massive demand for all kinds of energy www.bloomberg.com/news/article... — Dr Paul Dorfman (@drpauldorfman.bsky.social) 2025-12-15T10:12:11.353Z
— Dr Paul Dorfman (@drpauldorfman.bsky.social) 2025-12-15T10:29:43.219Z
My new favorite thing is tree hugging Hungarians.
#Climate — Lisa B. 🐝 (@lisabraudrick.bsky.social) 2025-12-12T22:27:19.874Z
Home batteries subsidy overhauled with $5bn injection as #Australia rushes to take up discount
www.theguardian.com/environment/... — Dr Paul Dorfman (@drpauldorfman.bsky.social) 2025-12-15T10:10:32.492Z
'Since the war in Ukraine the EU has saved 60bn cubic metres in gas between 2022 and 2024 from renewable deployment and energy efficiency, accompanied by reduction in coal and oil.'
www.ft.com/content/45d4... — Dr Paul Dorfman (@drpauldorfman.bsky.social) 2025-12-15T14:37:46.996Z
UK offshore wind industry employs 40,000 people — Dr Paul Dorfman (@drpauldorfman.bsky.social) 2025-12-15T16:01:07.620Z
Applications are still open! The Science for Public Good Fund offers up to $1500 to support community-driven science advocacy projects. From workshops to local campaigns, you can help spark change. Apply here now: act.ucsusa.org/3KVR9Qo — Union of Concerned Scientists (@ucs.org) 2025-12-15T04:15:16.878Z
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