Indianapolis has a moderate climate with distinct seasonal changes. Winters are cold, with temperatures often below freezing and occasional drops as low as -19°C in February, but mild periods also occur. Spring arrives gradually, warming up from March's average high of 24°C to April's 29°C, and the warmth persists through May's average of 16°C. Summer brings hot days with highs around 34°C, while autumn cools down rapidly, returning to winter-like conditions by November, with temperatures ranging from -8°C to 22°C on average.