
The Weather Channel explains that neutral ENSO conditions are expected through winter 2017-18. NOAA indicates a shifted polar jet could bring colder air to the Midwest and Northeast, while the southern US may be warmer and the South wetter.
A cold, wet US winter can affect winter wheat planting and livestock feed costs, but the effect is seasonal and modest, so it is a minor price factor for feed buyers.
After 29 past neutral weather events, Wheat (HRW) moved a median +0.6% over 5 sessions (52% higher; middle half -1.9% to +2.3%), and -0.7% over 20.
After 445 past neutral weather events, Corn moved a median +0.1% over 5 sessions (52% higher; middle half -1.4% to +1.6%), and +0.7% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.