Weather in Houston

Houston has a humid subtropical climate, prevailing winds bringing in the heat from the deserts of Mexico and moisture from the Gulf of Mexico during most of the year. Summers are swelteringly hot and humid, making air-conditioning a necessity rather than a luxury. Summers are characterised by afternoon thunderstorms, which bring rain most days, and sometimes tornadoes. Winters, by contrast, are cool and temperate, with no snow but some rain. The coolest month is January.