Hottest and Coldest Temperatures Ever in New York City on June 30

On June 30th, the weather in New York City has seen extremes throughout the years. In 2021, a scorching temperature of 102.9°F set a new record as the hottest day ever recorded, while back in 1988, a frigid low of 57.0°F marked the coldest temperature registered. Despite these extremes, this date typically experiences an average temperature of 76.06°F, with the average high reaching 81.18°F and the average low dropping to 70.93°F. In related news, during the year of the coldest temperature record, in 1988, the city celebrated the completion of the Citi Field baseball stadium, becoming the new home to the New York Mets.