Background Information for this page
Return to radar list for Monmouth ME
Weather data for Monmouth ME.  Forecast values begin October 30, 2009
Potential preharvest weather influences on
Storability, Drop, Color, and Scald risk
As of October 30, weather data do not suggest increased storage risk due to low average August temperatures, or to hot dry periods in August or September.
     General outlook (no account for crop load, drought and other stresses) for when drop of sound non-spur McIntosh apples might reach 10% of crop is
Friday, September 18 to Saturday, September 26.
     Weather conditions that promote optimum fruit color begin Monday, September 14
Weather data indicate 165 chilling hours will have accumulated by Wednesday September 30.  Research found that 500 ppm DPA for Cortland & 1000 ppm for Red Delicious  is adequate for fruit harvested on or after September 30, and kept in Refrigerated Air storage.  Limited data suggest that same may also be true for McIntosh.  This is also the best guess for scald risk in Controlled Atmosphere storage.
Date Estimated cumulative hours below 50 F
 at beginning of the day
Interpretation of
accumulated chilling hours
September 15 60 too few chill hours for DPA reduction
September 16 60 too few chill hours for DPA reduction
September 17 65 too few chill hours for DPA reduction
September 18 78 too few chill hours for DPA reduction
September 19 85 too few chill hours for DPA reduction
September 20 96 too few chill hours for DPA reduction
September 21 107 too few chill hours for DPA reduction
September 22 118 too few chill hours for DPA reduction
September 23 126 too few chill hours for DPA reduction
September 24 126 too few chill hours for DPA reduction
September 25 127 too few chill hours for DPA reduction
September 26 135 too few chill hours for DPA reduction
September 27 151 too few chill hours for DPA reduction
September 28 159 too few chill hours for DPA reduction
September 29 159 too few chill hours for DPA reduction
September 30 159 too few chill hours for DPA reduction
October 01 170 DPA reduction possible for Del. And Cort.
October 02 193 DPA reduction possible for Del. And Cort.
October 03 210 DPA reduction possible for Del. And Cort.
October 04 216 DPA reduction possible for Del. And Cort.
October 05 216 DPA reduction possible for Del. And Cort.