Currently there is little data on wind loading available to assess dynamic excitation effects by wind on trees. Wind forces are the largest forces that trees must endure, and global climate changes are likely to generate more extreme weather events that will increase the likelihood of wind damage to trees and property. Wind induced dynamic excitation in two urban trees (a She-oak and a spotted gum located on the main campuses of The University of Melbourne and Monash University, respectively) has been assessed using tri-axial accelerometers and (separately) a purpose-designed digital strain meter that measures the outer fibre movement of a trunk or branch as it bends in the wind. The measurements on these two trees were taken on the 2nd April, 2008 when an approximately 1 in 20 year wind storm was experienced in Melbourne. Pluck tests were also performed on She-oak on separate near still wind occasions as a follow-up to the wind measurements. Results from a spectral based model applied to the wind measurements and a fitting procedure exercised on the pluck test measurements are presented in this paper that assist in providing insight into the dynamic characteristics of these two tree species to turbulent wind in an urban environment.