Winters in Grays are cold and unpredictable, with temperatures often dropping below freezing point but occasionally rising above average. Spring brings a slow warming trend, with March being the first month to consistently reach double-digit averages. Summers are warm and sunny, with July typically being the hottest month, although temperatures can be quite variable throughout the season. Autumn is mild, with September and October experiencing pleasant temperatures before dropping back down again in November. Frosts return in December as winter sets in once more.