Help/tutorial button About this tool
Select New Location
Select Planting Date:

Select Crop (GDD Threshold):

Crop Maturity Settings (Optional):
Days to MaturityMaturity GDD's
Silk Layer GDDs

Adjust Freezing Temperature:


Enter Comparison Year:

Select your location and crop information to get started!

Show Graph Options

Select your location and crop information to get started!

The CliGrow web application allows producers to view GDD estimations at a specific geographic location, for a variety of crop types.

The final GDD graphs provide information about estimated maturity dates at GDD thresholds, dates for previous years from 1991-2020, the average 1991-2020 accumulation, and first/last freeze dates in previous years.

The best way to begin using this tool for a field, is to look at a comparison year and identify the GDD value on the date the crop matured. Then, use that maturity GDD value in the interface to look at other years, and average dates.

  • These analyses use data available through the Applied Climate Information System (ACIS), a joint-RCC long-term climate data service.

Click here to view a video tutorial on YouTube about CliGrow.


Select your location below: