Hottest and Coldest Temperatures Ever in New York City on September 11

On September 11th in New York City, the weather varied between scorching heat and chilly temperatures throughout history. The hottest temperature ever recorded for this date was 99.0°F in 1983, while the coldest temperature reached 48.9°F in 1967. On average, the temperature settles at around 71.05°F, with a typical high of 76.84°F and a low of 65.26°F. In 1983, not only was it the hottest September 11th, but this year also marked the introduction of the first-ever commercial mobile phone by Motorola, revolutionizing how people communicate in the years to come.