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File: winter-temp-trends--2026-01-29--2000px.png

Four maps showing how winters are warming across the United States from 1895/96–2024/25. The top map shows the change in the average of Dec-Feb. The three smaller maps below show the change in each month - Dec, Jan, and Feb - from left to right.

U.S. winter (December-February) temperature trends from the start of the NOAA historical record in 1895/96 through 2024/25. Areas colored red are warming; areas colored blue are cooling. In some regions—such as the January cooling trend in the South—the changes are small (not statistically significant) compared to natural variability. See NOAA versions of the maps for recent trends and statistical significance. Image by Climate.us.