Phoenix Melts: December Record Shattered by Heat Wave

Phoenix, Arizona, faced a significant departure from typical winter weather on Sunday, December 21, as the city's temperature soared to 81 degrees Fahrenheit, breaking the daily heat record. This event is part of an ongoing winter heat wave affecting numerous communities across Arizona, with nearby cities like Glendale and Yuma also experiencing unseasonably high readings.

The National Weather Service confirmed that the 81-degree temperature at Sky Harbor International Airport surpassed the previous record of 79 degrees, which was set in 2024. Earlier in December, Phoenix had already tied a daily record with an 81-degree reading on December 15, a mark that had stood since 1942. Meteorologists explain this persistent warmth is due to an anomalously strong high-pressure system.

Residents and travelers heading to the region for the holidays are advised to be aware of the warmer, drier conditions, as temperatures are expected to remain well above the seasonal norms of mid-60s highs and mid-40s lows. However, forecasts suggest a potential change by Christmas, with cooler temperatures, increased cloud cover, and possible rain anticipated across Arizona.