Winters in Richardson are typically mild, with temperatures rarely dropping below freezing and occasional warm days reaching up to 25°C. Spring brings a steady warming trend, with March and April averaging high temperatures of around 27-29°C. Summers are hot, but not sweltering, with July and August highs rarely exceeding 36°C. Autumn is similar to spring in terms of temperature fluctuations, with September and October days often reaching up to 33°C before cooling off. The coldest months tend to be December, November, and February, with average temperatures ranging from 5-15°C.