Winters in Dunakeszi are chilly, with temperatures often below freezing, averaging around 0°C in January and December. Spring arrives slowly, with March temperatures fluctuating between cold and warm days, eventually warming up to average highs of 9°C by April. Summers are mild, with July being the warmest month, but even then temperatures rarely exceed 37°C. Autumn is similar to spring, with gradual cooling from September's 16°C average to November's 5°C.