Spring weather in Iowa is, by definition, variable as air masses move across the landscape. The question that arises on occasion among farmers planning the planting season is, "What is the soil temperature in my area?" The Web site often cited to track fall soil temperatures for nitrogen applications is still functional, and soil temperatures are updated daily at the soil temperature history Web site. The Web site shows county-level average soil temperatures for the previous three days and is updated daily.
Iowa State University
Pope, Richard O., "Time to plant? Getting close!" (2007). Integrated Crop Management News. 1114.
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