Links to external websites with weather data are provided to assist you in your research. These are not the only sources for this information. MU Extension does not endorse any commercial products or services from the websites listed.

Weather and crop production maps

Missouri weather stations

This link provides gdd 50 accumulations and departures (far right columns) for all stations beginning April 1, and it updates daily:

All these links contain gdd accumulations (45, 50, 55 and 60°F) beginning March 1: