Hottest March in US History Sets New Record, Federal Data Reveals
The United States experienced an unprecedented March this year, setting records for abnormal heat across the nation. According to federal data from the National Oceanic and Atmospheric Administration (NOAA), March was the hottest month on record in 132 years. The average temperature for March reached 50.85 degrees Fahrenheit, surpassing the 20th-century normal by 9.35 degrees. This significant rise broke the previous record of 8.9 degrees set in March 2012.
Record-Breaking Heat in March
The average maximum temperature for March was recorded at 11.4 degrees above normal. Remarkably, this was nearly one degree warmer than the average high for April. Reports indicate that a significant number of temperature records were shattered, with over 19,800 daily records broken nationwide. Additionally, more than 2,000 locations established new monthly heat records, making it a month of alarming extremes.
Impact of Climate Change
Experts have expressed concern over the rapid increase in temperatures. Meteorologist Shel Winkley emphasized the worries surrounding the sheer volume of unprecedented temperature records. The period from April 2025 to March 2026 marked the warmest 12 months recorded in the continental U.S. previous years. Winkley noted that the extreme weather conditions were enhanced by human-induced climate change.
- February was 6.57 degrees above the 20th-century norm, ranking as the tenth hottest February.
- One-third of the nation felt unseasonable heat on March 20 and 21, attributed to climate change.
According to meteorologist Guy Walton, the number of extreme heat records in March surpassed totals from entire decades in the past. Fellow meteorologist Jeff Masters echoed these sentiments, stating that the January to March period was the driest on record, compounding the issues of water availability and agricultural challenges.
El Niño’s Potential Impact
Looking ahead, forecasts predict a strong El Niño developing later this year. This phenomenon is characterized by warmer ocean temperatures that can drastically alter global weather patterns. NOAA and the European climate service Copernicus anticipate that this El Niño could reach superstrength, potentially exceeding 2 degrees Celsius, which might elevate global temperatures significantly.
Historical Context and Future Implications
Historically, strong El Niños have triggered climate shifts, as observed following the El Niños of 2015-2016. These shifts could result in extended periods of altered weather. Meteorology professor Victor Gensini stated that a strong El Niño could lead to new record-high global temperatures by late 2026 or into 2027.
As research continues, climate scientists are investigating the links between global warming and the intensity of El Niños. Jonathan Overpeck from the University of Michigan highlighted the potential for increased hurricane activity in certain regions and a possible alleviation of drought conditions in the Southwest due to these cyclical climate patterns.
