Global Temps Cooled In November; Australia's Historic Summer Cold; China's Deep Early-Freeze; Arctic Blast To Break Records Across US; + Giant Sunspot Group Comparable To The 1859 Carrington Region

Today’s group is around 90% the size...

Global Temps Cooled In November

Global temperatures cooled again in November, according to the latest UAH update.

The month came in at 0.43C vs the 1991-2020 mean, down from 0.53C in October:

[Dr Roy Spencer]

The steepest cooldowns were noted across 1) Australia which saw a drop from 1.67C to 0.37C; 2) the Arctic, which fell from 1.42C to 0.78C; and 3) the Southern Hemisphere overall, which cooled from 0.55C to 0.27C.

Overall, the 2023-24 (Hunga-Tonga) warming spike continues to unwind, with global temperatures now having fallen roughly half a degree C from the recent peak.

Stratospheric water vapor at ~26 hPa (about 25 km up) from NASA’s Aura MLS. The deep green surge beginning in 2022 is the enormous injection of water vapor from the Hunga Tonga eruption — the largest ever observed. This moisture spread worldwide through 2023–24 and helped drive a temporary warming spike in the global atmosphere. The chart shows how unusual and persistent that water-vapor anomaly has been compared to the past.

Australia’s Historic Summer Freeze

Australia now looks to be continuing its cool down into December, at least across the east. A wintry-like blast gripped Victoria, NSW and parts of Queensland on Monday, delivering among the coldest summer temperatures ever logged.