Historical weather data, all-time temperature records, and monthly climate averages for Rockville Centre, NY. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Rockville Centre sits squarely in the transition zone — expect a cool 55° high and 40° low on average, though the date has swung anywhere from 73° (1988) to a bitter 24° (1995). There's roughly a 1-in-3 chance of rain, but snow is nearly off the table at just 1%.
Rockville Centre has seen the full extremes of the Northeast, from a scorching 104° on July 3, 1966 to a brutal -2° on January 21, 1985 — a 106-degree spread across the record books. The wettest single day on record was a staggering 8.05" on September 29, 2023, and the snowiest dropped 30.3" in a single storm on January 23, 2016.
Summer is the sweet spot here, with highs peaking at 85° during the week of July 16–22 and the wettest stretch following right behind in late July. Winters are cold but not brutal, with the coolest week of the year averaging just 38° in mid-January. If you're planning a visit, May through September offers the most comfortable stretch, with highs climbing from 68° to a warm 83° at the peak.