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Agronomic Crops Network

Ohio State University Extension


Warm Weather Hit in a Big Way This Last Week

After a cold start to April the warm weather hit in a big way this last week. Temperatures now for Ohio are running 3-5 degrees below normal for April but will likely be down to a degree or two below normal by late this week for April as the warmth cancels out the early April cold. Also, since March first, temperatures are running 2-6 degrees above normal even with that early April cold stretch so this is going down as a WARM spring.

Rainfall since April 1 is normal to an inch below normal.

The strong El Nino is quickly fading and will likely be replaced by La Nina this summer. La Nina events usually put stresses on Ohio summer crops so this is worth watching.

This coming week will remain warm until a storm system brings on average about 0.50 inches of rain late Wednesday into early Friday. If we get far less than 0.50 inches of rain then this could be an early indication of developing dryness. If we get far more than 0.50 inches this could signal continued decent rains into May so this is worth watching closely later this week.

For the remainder of April temperatures will continue above normal with normal to below normal rainfall. Rainfall averages an inch per week so normal rain is 2 inches. We expect 1-2 inches for the rest of April.

As for last freeze, as predicted in February and March, it appears the last hard freeze has come about on schedule in April. Indications are we can still expect a few days of frost and light freeze conditions especially north of I-70 but the last hard freeze in the middle 20s and below has probably already occurred.

Evaporation rates are above normal right now and likely to overall stay above normal into May.

The outlook for May calls for warmer and drier than normal weather.

Risk Outlook                       April                       May                       June

Temperatures                     Slighty Below          Slightly Above        Above

Rainfall                              Normal                     Below                    Below

Freeze                              Normal

4 inch soil                         Normal/Above           Above                     Above

Evapotranspiration             Normal                     Above                     Above

The latest outlook for temperatures and precipitation for the region from NOAA/NWS into the end of the month can be seen here and it shows warmer than normal along with wetter in the western corn and soybean areas but normal or drier in eastern areas.


Crop Observation and Recommendation Network

C.O.R.N. Newsletter is a summary of crop observations, related information, and appropriate recommendations for Ohio crop producers and industry. C.O.R.N. Newsletter is produced by the Ohio State University Extension Agronomy Team, state specialists at The Ohio State University and the Ohio Agricultural Research and Development Center (OARDC). C.O.R.N. Newsletter questions are directed to Extension and OARDC state specialists and associates at Ohio State.