Piscataway's winters are cold and variable, with temperatures often below freezing, but occasionally rising above 12°C in January. By March, the chill begins to lift, and temperatures can soar up to 28°C on warmer days, averaging around 7°C overall. Spring arrives in April, bringing more consistent warmth, with highs sometimes reaching 31°C, while autumn is similar, with mild temperatures in October that can dip back down into single digits in November. Summer is warm but not hot, with July and August temperatures typically ranging from 14°C to 35°C. In the winter months of December and January, frosty mornings are common, with temperatures frequently below -4°C.