Statistical and spatial analyses were performed on existing thaw-depth data sets from a variety of climatic and terrain conditions to determine the variability of thaw. These data include permafrost sites in Alaska, temperate sites in the continental United States in Minnesota and Wisconsin, and a large-scale, controlled test section with no solar input in the Frost Effects Research Facility (FERF) at the Cold Regions Research and Engineering Laboratory (CRREL) in Hanover, New Hampshire. Results can be used to spatially distribute soil properties based on point data or one-dimensional models, or to populate sparse data sets with terrain properties. They are also useful for analysis of impact of thaw distribution on predictive models, such as for predicting vehicle mobility.