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State-by-State Lists Show Which Septembers Were Warmest in U.S. Records

The compilations use official NCEI monthly averages to show a recent clustering of extreme September heat that NOAA links to long-term warming with a strengthening El Niño raising the odds of more extremes.

NOAA Says July 2026 Tied Warmest July as Global Oceans and U.S. Set New Records

State Lists Identify Coldest Augusts in Oregon and Colorado

State-by-State NCEI Rankings Show Many of the Hottest Augusts Happened in the 2020s

State-by-State Lists Show Recent Months Dominating Hottest and Coldest Rankings

Stacker Releases State Rankings of Hottest Februarys Based on NCEI Records

Stacker’s NOAA-Based Lists Name Coldest Decembers for Oregon, Colorado, and Texas

State Rankings Identify Warmest Decembers on Record Using NOAA Data

Local Sites Publish NCEI-Based Rankings of Hottest Novembers by State

Stacker Publishes State Rankings of the Coldest Septembers Since 1895

Local Sites Share NOAA-Based Rankings of Hottest Septembers by State Since 1895