MLRA 131 - Southern Mississippi Valley Alluvium Arkansas, Mississippi, Missouri, and Tennessee 93,600 km2 (36,140 mi2)

Climate:
Average annual precipitation 1,150 to 1,650 mm, increasing from north to south. In most of the area maximum precipitation is in winter and early in spring, decreasing gradually to a minimum in autumn. Along the Gulf Coast, maximum precipitation is in midsummer and early in autumn. Snowfall is negligible. Average annual temperature 14 to 21 C, increasing from north to south. Average freeze-free period 200 to 340 days, increasing from north to south.

12/16/98