Transforming Climate Variability and
Change Information for Cereal Crop Producers
While this tool is not meant to be a crystal ball, data and information derived from the tool can be used to make helpful inferences about current conditions, especially when combined with personal experience and localized knowledge. Please note that data is currently limited to states within the U2U project area plus Kentucky & Tennessee.
User Input Summary
Location (lat, long): Tippecanoe Co., IN
Location (county, state): Tippecanoe Co., IN
GDD Start Date: Tippecanoe Co., IN
Today's Date: Tippecanoe Co., IN
Latest Data Available: September 30, 2014
Corn Maturity Days: Tippecanoe Co., IN
Growing Degree Days to Silking: Tippecanoe Co., IN
Growing Degree Days to Black Layer: Tippecanoe Co., IN
Corn Growing Degree Day (GDD) Results __________30-Year History (1981 - 2010)_______________
____________This Year____________AverageOccurs within 100% of the time
Growing Degree Day Accumulation99710501020
(September 30 - September 30)
Silking DateSeptember 30 - September 30 - September 30September 30September 30
(Estimated (Earliest - Latest))
Black Layer DateSeptember 30 (Estimated)September 30September 30
(Estimated (Earliest - Latest))
Last Spring FreezeSeptember 30September 30
Freeze Probability after May 1September 30
First Fall FreezeSeptember 30September 30
Freeze Probability before Black LayerSeptember 30** = Not available since GDD start date is after the date of latest available data; use information under 30-year history
One selects a location within the U2U area (grayed area) on the map to define the location to use for a Growing Degree Day (GDD) analysis. If one selects a location outside of this area a message is presented indicating that no data is available for this location.
Some notes on making selections:
If one has made a selection and the popup information box is displayed, one cannot select a new location within a box bounded by the top (or bottom) of the box and the bottom (or top) of the pointer. If you need to make a selection within that area, close the information popup first.
When one is satisfied with the location, select “Create GDD Graph” within the balloon window to create a GDD graph. [This selection causes the data for that location to be read from files containing the 30-year (1981-2010) average, 30-year (1981-2010) median, comparison years (1981-2012) GDDs and current year (2013) GDDs. Also the temperature threshold information to be used for the graph are read.]
The arrow buttons above the zoom buttons allow one to scroll around the image. Note that one is not allowed to scroll around to areas that are very far outside of the U2U area.
The + in the upper right of the image is a pop-down menu that allows one the ability to select different maps for the background and the ability to turn the U2U State and County overlays off and on. The + changes to a – when the menu is being display. Selecting the – will cause this menu to be hidden.
The location of the cursor in latitude-longitude units are displayed in the lower left of the map.
The following is an animation for 2013.
The following is an animation for 2012.
The following is an animation for 2002.