Growing Degree-Days


Josh Nelson
CPS Tangent
Here is a quick summary of our Growing Degree Days through March 23rd. This year we have 10 GDD's; in comparison through the same period we had 40.5 in 2011 and 70.5 in 2010. Keep in mind we can catch up on GDD's in just a few warmer than average days.
Yearly Totals Through March 23rd:
Year GDD
2003 64.5
2004 45
2005 51.5
2006 38
2007 111
2008 7.5
2009 7.5
2010 70.5
2011 40.5
2012 10
Average Monthly GDD Accumulation:
Month Avg. Growing Degree Days
Jan 0
Feb 0
Mar 25
Apr 37
May 136
June 225
July 485
Aug 364
Sept 171
Oct 2
Nov 0
Dec 0
Total Average 1445
Growing Degree-Day Definition:
The growing degree-day (GDD), an extension of the degree-day concept, is defined as a day on which the mean daily temperature is one degree above the minimum temperature required for the growth of a particular crop. The GDD is used as a guide to planting times and for determining the approximate dates when a crop will be ready for harvesting.
*Information gathered from weather.com