All I can do is make comments as I try to understand our current weather conditions.
Current weather conditions
First, we feel that significant corn yield decreases will normally begin about May 10.
Secondly, wait until the soil conditions are dry enough before attempting to plant.
Third, last week from April 21-25, I recorded maximum air temperatures ranging from 80°F to 58°F and minimum air temperatures ranging from 55°F to a low of 36°F. The all-important soil temperatures at 4” depth in the morning stayed 45°F or warmer during this volatile weather period.