Climate of Missouri

Lacking either large mountains or oceans nearby to moderate its temperature, its climate is alternately influenced by air from the cold Arctic and the hot and humid Gulf of Mexico.

Spring is generally the wettest season of the year, with the mean temperature from 1895 until 2003 being about 12 °C (54 °F) and its mean precipitation (in the form of rain) for this period being approximately 300 mm (12 inches).

Tropical cyclones and their remains can impact the state during this time of the year, contributing to area rainfall.

Tropical cyclones and their remains can impact the state into October, contributing to area rainfall.

During the winter, northwest winds prevail; the air movement is largely from the south and southeast during the rest of the year.