2025 Winter Package

The October 2025 briefing reports that global temperatures remained exceptionally high, with the month ranking as the third warmest on record. In the U.S., warming fall temperatures have delayed the first freeze in 88% of analyzed cities, while significant drought persists across 67% of the contiguous U.S. despite localized heavy rainfall in Southern California.

• October 2025 was the third warmest October globally on record, following 2023 and 2024. Both the Arctic and Antarctic Circles set new October record high temperatures, with some areas exceeding the 1991-2020 baseline by more than 7°C.
• Global temperatures in 2025 have remained consistently high, with every month through October ranking among the top three warmest on record. The last 12 months were approximately 1.5°C above the 1850-1900 pre-industrial baseline.
• In the United States, warming temperatures in September, October, and November have led to a delayed first freeze in 88% of the cities analyzed by Climate Central since 1970. Additionally, winters in 239 U.S. cities have warmed by an average of 3.9°F since 1970.
• As of early November, more than 67% of the contiguous U.S. is experiencing abnormally dry conditions, with over 44% in at least moderate drought. While conditions improved in the Ohio Valley, they worsened in Texas.
• La Niña-like conditions are present in the central Pacific Ocean, though 21st-century La Niña years are now warmer than El Niño years from a few decades ago due to human-caused warming.

APA

Climate Central (2025). 2025 Winter Package. https://www.climatecentral.org/climate-briefings/october-2025

Chicago

Climate Central. 2025 Winter Package. 2025. https://www.climatecentral.org/climate-briefings/october-2025.

Wikipedia

{{cite report |author=Climate Central |title=2025 Winter Package |date=1 October 2025 |url=https://www.climatecentral.org/climate-briefings/october-2025 |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{climatecentral20252025, author = {{Climate Central}}, title = {{2025 Winter Package}}, institution = {Climate Central}, year = {2025}, month = oct, url = {https://www.climatecentral.org/climate-briefings/october-2025}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }