Apple Bud Freeze Mortality Estimates

Caution:  For forecast use only.  The estimates in this table are experimental and have NOT been field validated.
Estimates are for cultivars at this site that reached Green Tip on Tuesday, April 11, and other bud stages as shown at --->   Apple bud stage dates
Field sampling if buds after a low temperature event is the only way to determine actual bud freeze percentage.
Bud Freeze percentage does not equal 'Crop Loss'.  Only a small percent of the total bud population is needed for a full crop, but freeze percentage can affect thinning and other decisions.
Background Information for this page
Return to Apple list for Easthampton MA
Weather data for Easthampton MA.  Forecast values begin July 3, 2017
Date Max. Temp. F Minimum Temperature F Estimated Potential Bud Freeze % Threshold Temperature for 10% bud kill Hours at or below 10% bud kill temperature Estimated Temperature for 50% bud kill Hours at or below 50% bud kill temperature Estimated Temperature for 90% bud kill Hours at or below 90% bud kill temperature
No Freeze dates observed