ClimateNA is a standalone MS Windows application that uses gridded monthly climate normal data (800 x 800 m) to generate scale-free climate data and climate surfaces for specific locations. It calculates and derives many (>200) monthly, seasonal and annual climate variables. ClimateNA also uses the scale-free data as a baseline to downscale historical and future climate variables for individual years and periods between 1901 and 2100, covering the entirety of North America.