Record-shattering March temperatures in Western North America virtually impossible without climate change
An unusually early spring heatwave is developing across the southwestern United States (US), with temperatures that are more typical of summer than mid-March ( AccuWeather, 16 March 2026 ). Driven by a strong, slow-moving high pressure system, called a ‘heat dome’, the event is causing temperatures to rise 11-17℃ (20-30℉)…
bubmagMarch 20, 2026