Historical weather data, all-time temperature records, and monthly climate averages for Port Chester, NY. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Port Chester sits right in the thick of the year's wettest stretch, with a 44% chance of rain and temperatures that average a cool 54° high and 37° low. The date has seen some wild swings over 80 years of records — from a balmy 76° in 1967 down to a brutal 18° low in 1954. Snow is still on the table at a 6% chance, so don't pack away the layers just yet.
Port Chester's weather has real range — from a scorching 102° on July 4th, 1966, to a bone-chilling -10° in January 1961, a spread of 112 degrees. The wettest single day on record dropped a remarkable 6.82 inches of rain on April 15, 2007, and a 1969 February snowstorm buried the area under 20 inches in a single day.
Summers are warm and humid, peaking in the July 16–22 window with average highs of 84°, while January is the month to avoid if cold isn't your thing — highs average just 34° in mid-month. Spring is the wettest season, with early April averaging 1.24 inches of precipitation per week, so pack accordingly if you're visiting before May.