Idaho Rainfall Maps

The first map, near the bottom, shows annual precipitation in Idaho using the inverse-distance weighting method, the second map, to the right, shows the same data using the Kriging method, while the maps are relatively similar, there are a few noticeable differences. On the Kriging method map, the contour lines are much smoother then they are on the Inverse-Distance map and the change in shade which shows the level of precipitation, is much more gradual in this map, also in the Kriging map much more area in the map lies below the lowest contour value of 10, and much more area in the map lies above the highest contour value of 40, But, the range in values is slightly greater in the Inverse-Distance map. Both maps show that the Northern portion of Idaho receives much more precipitation then Southern Idaho. And the amount of precipitation is especially high in the Rocky Mountains near the Montana border.