NOAA's Climate.gov January update says tropical Pacific sea surface temperatures remain cooler than average, a La Niña signal, though some weakening has appeared. The atmosphere still shows a La Niña-like pattern, with a stronger Walker circulation and more rain over Indonesia.
A persistent La Niña tends to bring dryness to South America and parts of the US, supporting soy and corn risk premiums. A transition to neutral or El Niño would ease those concerns over the coming months.
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.
After 324 past neutral weather events, Soybeans moved a median +0.0% over 5 sessions (52% higher; middle half -1.4% to +1.7%), 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.