The USDA says weather in the Midwest was mixed over the past month, generally warmer and drier than normal.
Aside from a late month blizzard, temperatures in Iowa reached record levels at times during February, and in parts of the state, cover crops are turning green and trees have started to bud.
The USDA says there are concerns about the potential for damage from a late winter cold snap.
Livestock conditions are generally good, but some stress has been reported.
Melting snow and ice has limited grain movement on soft gravel roads and has made feedlots muddy.