Northeast Braces for Warmer, Wetter Summer Ahead

Summer predictions indicate a greater likelihood of abnormally high temperatures and wetter-than-average conditions. The trend of increasing heatwaves and days with a high heat index is evident, particularly in regions like Southern New England. This intensified warmth also correlates with a steady climb in cooling degree days, reflecting higher energy needs for climate control in homes and businesses.

Climate change is demonstrably impacting weather patterns, making events like unseasonably warm spring days twice as likely. With increased heat and humidity, the potential for afternoon thunderstorms and muggy overnights is also rising. While the severity of individual thunderstorms may not change, the heightened moisture content in the air increases the risk of localized flooding.

The developing El Niño pattern, though less influential on summer than winter weather, suggests a possibility of increased wetness as summer deepens. This comes after a dry first half of the year, indicating a potential shift in weather patterns. The overall outlook points to a warmer summer compared to the 1970s and '80s, with more warm nights and humidity expected.