University Extension Formula

GDU Tracker

Growing Degree Units for Corn · Base 50°F / Cap 86°F

ZIP Code

Planting Date

Hybrid RM

GDU = [(Max Temp + Min Temp) / 2] − 50°F · Daily max capped at 86°F, min floored at 50°F
Actual + 14-day forecast via Open-Meteo · Long-range projections use 15-year weather normals (ERA5) · Location via Zippopotam.us