Precipitation during the coldest quarter 0.260696
Precipitation during the hottest quarter 0.273835
Available water holding capacity of soil 0.293087
Nitrogen content of soil 0.441865
Sum of monthly Tavg where Tavg >=5 deg C 0.453691
Ratio of precipitation to potential evapotranspiration 0.581227
Solar interception 0.886181
Precipitation during the wettest quarter 1.0443
Precipitation during the driest quarter 1.13051
Compound topographic index (relative wetness) 1.20664
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.22745
Temperature during the coldest quarter 1.61992
Carbon content of soil 1.71427
Temperature during the hottest quarter 1.76914
Elevation 1.83991
Bulk density of soil 2.05764
Day/night diurnal temperature difference 6.36499