Which past years' weather this season most resembles so far, and the full spread of simulated outcomes behind the confidence range.
Most similar years to 2026 so far
Ranked by how closely each year's observed-to-date GDD accumulation and precipitation matched this year's, through the same calendar date.
#
Year
GDD to date
Precip to date
Similarity distance
Simulated yield by analog year
Each point is what the model would have projected if the rest of this season played out like that year did (plus that year's own regression error). The confidence range on the main page is the 10th–90th percentile of this spread.
most similar year (top 5)other analog years
Data sources
NASA POWER (temperature, precipitation, evapotranspiration) ·
USDA NASS QuickStats (Rock Island County yield history) ·
NWS/NDFD (FRET forecast) ·
Open-Meteo — GFS & ECMWF (7-day precipitation forecast)