Iowa Environmental Mesonet
Iowa State University Department of Agronomy
View current Iowa Road Conditions
RelatedIEM Ag Weather/Climate Information
Please suggest features for this page. We are looking to collect all relevant
Iowa Ag Weather information in a one-stop location.
| Current | Growing Season | |
|---|---|---|
| Growing Degree Days | Map of Totals
Single Site Graphs |
|
| Precipitation | Today's total | Map of Totals
Single Site Graphs |
| Soil Moisture | Modelled Estimates | |
| Soil Temperatures | County Estimates
Archived County Estimates |
|
| Stress Degree Days | Map of Totals
Single Site Graphs |
Aridity Index for Corn Belt
How Temperature and Precipitation have influenced corn by reporting district. view here.
Historical Freeze Risk
An air temperature less than 27 is generally considered to be the Hard Freeze, that is a crop killing event, although plant damage and yield loss is often observed at less extreme low temperatures. Crop threshold temperatures for plant damage in Fall differ from Spring thresholds (mainly because of plant size/height).