If you grow specialty crops in the Southeast, you may be interested in this pair of studies which look at the vulnerability of specialty crops in California and in the Midwestern US to changes in climate that are expected to occur over the next fifty years, including changes in the temperatures and growing seasons as well as changes in precipitation by season.  I have not seen a similar report for the Southeast yet but will publicize it when it is available.

California: https://link.springer.com/article/10.1007/s10584-017-2011-3

Midwest US: https://link.springer.com/article/10.1007%2Fs10584-017-2066-1

From Young et al. 2007, https://www.ers.usda.gov/amber-waves/2007/february/relaxing-fruit-and-vegetable-planting-restrictions/