The climate of the Edwards Plateau falls within two broad climate classifications within the state of Texas: subtropical steppe climate, and subtropical subhumid climate. The steppe climate, characterized by prevailing semi-arid to arid conditions throughout the year, is found in the western half of the region. The subhumid climate extends from the west in Schleicher and Sutton counties through to the eastern half of the region. The growing season ranges from 230 to 270 days, from north to south.

Precipitation varies across the Edwards Plateau (Figure 2). Average annual precipitation ranges from 12 inches per year in Crane County on the west to a high of 32 inches per year in Travis and Bexar counties to the east (Goetze, 1998). Average temperatures tend to follow a gradient from south to north, with the highest average annual temperatures in the southwestern portion of the region (Table 1). The extreme northwest Edwards Plateau, where it borders the Llano Estacado, usually has the coldest winter temperatures (Goetze, 1998). The Edwards Plateau is second only to the Trans-Pecos region in length and frequency of drought (Knight, et. al. 1984). 

The region usually receives a few snowfalls each year, but the accumulation of snow is usually a few inches at best. Snow is most likely to occur in January and February.