This September was the hottest ever on record for the U.S.

October 8, 2026 · 5:10 pm 1 sources

Image: Scientific American

Coverage

Coverage

• This September was the hottest ever on record for the U.S.
  Scientific American · October 8, 2026 17:10
  It’s been a blistering year. A record-hot September doesn’t bode well for the rest of it