
La Nina is forecast to bring little rain to Argentina's Pampas growing region in January and February, when soybean and corn are developing. The Buenos Aires Grain Exchange report says March will be wetter, but large pockets of drought will persist.
Dry summer conditions during the critical pod-filling and grain-fill period would cut Argentine soybean and corn yields, reducing export supply of soybean meal and oil. That supports higher prices for these products.
After 1,079 past bullish weather events, Soybeans moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +2.0%), and +0.9% over 20.
After 1,465 past bullish weather events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.9% over 20.
After 453 past bullish weather events, Soybean Meal moved a median +0.5% over 5 sessions (55% higher; middle half -1.6% to +2.7%), and +0.5% over 20.
After 184 past bullish weather events, Soybean Oil moved a median +0.3% over 5 sessions (53% higher; middle half -1.9% to +2.4%), and -0.5% 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.