The Impact of Preseason La Niña Episodes on Corn and Soybean Yields in Brazil and Argentina

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.

• Feb 11, 2026Lack of rain pressures corn and soybeans in the South-0.5%
• Dec 4, 2023Delayed Soybean Planting to Impact Safrinha Corn Acreage in Brazil+1.7%
• Sep 18, 2024Will a Very Dry End to Growing Season Impact Corn and Soybean Yields? Missy Bauer Explains on Unscripted. - AgWeb-1.2%
• Jan 15, 2025Very Dry Last Half of Growing Season Took top End Off US Corn, Soybean Yields+2.0%
• Aug 18, 2021La Niña’s Likely Return Could Impact Brazil, US Corn-1.4%

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.

• Jun 1, 2022Third Consecutive La Niña? What to Expect from Soybean Yields in the United States, Brazil and Argentina+2.7%
• Aug 24, 2020La Nina could impact soybean planting in Brazil, Argentina - Brownfield Ag News+5.5%
• Feb 11, 2026Lack of rain pressures corn and soybeans in the South+1.0%
• Sep 18, 2024Will a Very Dry End to Growing Season Impact Corn and Soybean Yields? Missy Bauer Explains on Unscripted. - AgWeb+3.6%
• Jan 15, 2025Very Dry Last Half of Growing Season Took top End Off US Corn, Soybean Yields+1.2%