2026 saw the hottest March ever recorded in the continental U.S.
March 2026 was the hottest March ever recorded in the contiguous United States, with temperatures over 9 degrees Fahrenheit higher than the 20th century average. Climate change is driving up temperatures, making intense wildfires more likely.
The contiguous United States experienced its hottest March ever recorded in 2026, with an average temperature more than 9 degrees Fahrenheit higher than the 20th century average. Ten western states, including Arizona, California, and Nevada, broke their records for the hottest March. The last 12 months, from April 2025 to March 2026, were the hottest ever recorded in the contiguous United States. Climate change is driving the rising temperatures due to the release of planet-warming pollution from burning fossil fuels. The record heat has contributed to drought conditions, with California experiencing its driest March ever. The hot and dry conditions are likely to lead to a potentially catastrophic year for wildfires.
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