Found this when searching. It's odd when I grew up in the 1980s I always remember everybody complaining how warm the winters were and how El nino became a common phrase LOL. Global warming finally became a common topic during the eighties.
"New York City's average winter temperature is characterized by daily highs that decrease from 49°F to 45°F, rarely falling below 26°F or exceeding 61°F. In January, the average daily temperature ranges from around 22°F to 38°F, but it's common for temperatures to drop below freezing, especially at night.
New York's average annual temperature has warmed 3°F since 1970, and is projected to rise by another 3°F by 2080. The state is also expected to experience more days above 90°F and more heat waves in the future."