User Guide: Midwestern Agricultural Climate Atlas, Version 1.0

The Midwestern Agricultural Climate Atlas contains climate statistics for a large number of locations in the Midwest with long-term daily climate records. The daily data themselves are not included in the atlas, but only the statistics of these data. The atlas covers a nine-state region in the central U.S., including the states of Illinois, Indiana, Iowa, Kentucky, Michigan, Minnesota, Missouri, Ohio, and Wisconsin. The statistics included in the atlas are means, extremes, and probabilities of occurrence for various time durations from one week to one year. Primary climatic elements included are air temperature, precipitation, and snowfall. From these primary elements, a number of other variables are derived, including growing degree days, and growing season length. Data from the atlas are presented in report, graph, or map formats. Report products give a tabular summary of single station climate statistics for several different time periods. Graph products show the temporal distribution of a single element for a single station. The map products show the spatial patterns of a single element over a single state or over the entire region for a given time period.published or submitted for publicationis peer reviewedOpe