This data package contains chemistry data from dryfall (dust) atmospheric deposition collected at the Jornada Basin LTER weather station north of Las Cruces, NM in Dona Ana County, New Mexico, USA. Atmospheric deposition as found in dryfall (dust) and wetfall precipitation has been at this location since 1983 using an Aerochem Metrics wetfall/dryfall collector. Dryfall occurring as atmospheric fallout is collected monthly. Each sample is analyzed for Br, Ca, Cl, F, HPO4, K, Mg, Na, NH4, NO3/NO2, SO4, Total N, and Total P. Analysis of Sr and Dissolved Organic Nitrogen was discontinued in 2003. Wetfall precipitation chemistry is available in data package knb-lter-jrn.210128002.