Houston's climate is characterized by mild winters and hot, humid summers. January and February are the coolest months, with temperatures rarely dipping below freezing, while March marks a significant warming trend as temperatures rise into the mid-teens to mid-twenties Celsius. Spring arrives in April, bringing rising temperatures that continue through May and June, which often see highs in the late twenties to early thirties Celsius. Summer is hot and humid, with July and August being the warmest months, but even these periods have some respite from the heat with overnight lows rarely below 25C. Autumn sees a return to more comfortable temperatures, with October through December experiencing mild days and cooler nights.