Winters in Rockville Centre are mild and chilly, with temperatures rarely dipping below freezing. January is the coldest month, but even then, temperatures can rise above 12°C. Spring brings a slow warming trend, with March marking the beginning of more moderate temperatures around 7°C. Summer is warm and humid, with June and July averaging highs around 23-24°C. Autumn is cool and dry, with October being one of the cooler months, averaging around 17°C before temperatures start to drop again in November and December.