EROSIVITY - R
nLas Vegas, NV 8
nPhoenix, AZ 22
nDenver, CO 40
nSyracuse, NY 80
nMinneapolis, MN 110
nChicago, IL 140
nRichmond, VA 200
nSt. Louis, MO 210
nDallas, TX 275
nBirmingham, AL 350
nCharleston, SC 400
nNew Orleans, LA 700
Measure of erosivity of climate at a location
Erosivity varies greatly by location.  Climate is about 100 times more erosive in New Orleans than in Las Vegas.