A new hourly-level analysis of extreme heat reveals a sharper increase than traditional daily metrics, with a trend of 62 additional extreme heat hours per decade. The study defines extreme heat as temperatures exceeding the 90th percentile at each specific hour, uncovering nuances that daily averages miss. This approach highlights the accelerating severity of climate-driven heat events.
Background
Traditional climate studies often rely on daily minimum, maximum, and mean temperatures to assess heat extremes. This hourly approach provides finer resolution, revealing accelerating trends that daily aggregates may obscure.
- Source
- Ars Technica
- Published
- Aug 12, 2026 at 12:26 AM
- Score
- 6.0 / 10