A second request I have is to consider for a calculation of “chilling units”. The buds of many fruit trees and trees of temperate forest go dormant prior to the onset of winter. In order to resume growth again in spring, the buds must be subjected to a number of hours of low, but non-freezing temperatures, usually between 32 (0C) and 45F (7C). If the number of hours of exposure to the chilling temperatures, buds will not grow properly even if the environmental conditions are OK. The total number of chilling hours varies considerably between species and even among cultivars. The chilling requirement is of great concern among fruit growers in terms of cultivar selection. Growers are concerned about when the chilling requirements are met, so the ability of the Tempest to determine the accumulation of number of hours of chilling temps would be useful.