Flower Mound experiences a mild continental climate with distinct seasonal variations. Winters are chilly, with temperatures often dropping below freezing and averaging around 8°C in January, but can occasionally reach warmer highs of up to 25°C. Spring brings significant temperature swings, with March being the warmest month on average at 15°C, while April's averages are similar. Summer is warm to hot, with July and August seeing highs often reaching 38°C, although averages remain around 28°C. Autumn is mild, with September averaging a comfortable 25°C, before temperatures gradually cool down in October and November.