Texas is the largest state, geographically, in the lower 48 and can be divided into seven regions. The climate across the state is variable with average rainfall differing widely between and within regions.
The western Gulf Coast region has a subtropical, semi-arid climate. The rainfall can range from less than 10 inches to more than 40 inches.
The Piney Woods region of Texas is rich with wetlands, swamps, marshes, lakes and streams. Average rainfall is 36 to 50 inches, which is uniformly spread out over the course of the year.
The Prairie and Lakes region of Texas covers both central and north central Texas. Average rainfall is between 26 and 40 inches per year.
The Texas Hill Country is found in Central Texas and consists of rolling to hilly grasslands. Average rainfall in this area is between 15 and 34 inches per year.
Much of the South Texas Plains is covered with dry grasses and thorny bushes like mesquite. Average rainfall in this region is 20 to 32 inches per year, but net evaporation rates are quite high in the summer months. Average rainfall in the Panhandle Plains region is 15 to 28 inches per year.
In Big Bend Country, you will find extremes in climate and temperature. The average rainfall for this region is 8 to 20 inches with extremely high net evaporation rates.
