Historical weather data, all-time temperature records, and monthly climate averages for Jericho, NY. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4 in Jericho typically lands in that in-between stretch of spring — average highs around 55° with lows still dipping to 40°. The date's range tells the real story: it's hit 73° as recently as 2010, but also bottomed out at a bitter 24° back in 1954. There's a 40% chance of rain today, though snow is essentially off the table.
Jericho runs the full gamut of mid-Atlantic extremes, from a scorching 104° on July 3, 1966 to a brutal -2° on January 21, 1985 — a swing of 106 degrees. On the wet side, the remnants of Hurricane Ida dumped 8.05 inches in a single day in September 2023, and a January 2016 nor'easter buried the area under 30.3 inches of snow.
Summer is the clear sweet spot, with highs peaking around 83–85° in mid-to-late July and the wettest stretch of the year arriving right on its heels. Winters are cold and gray, with average highs in the upper 30s from mid-January through February. If you're planning a visit, late May through early October offers the most reliable warmth, with spring and fall serving as pleasant but unpredictable shoulder seasons.