Day/night diurnal temperature difference 0.118557
Temperature during the hottest quarter 0.276371
Compound topographic index (relative wetness) 0.422809
Nitrogen content of soil 0.465856
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.472302
Carbon content of soil 0.547578
Precipitation during the hottest quarter 0.627578
Precipitation during the driest quarter 0.67617
Elevation 0.706636
Precipitation during the wettest quarter 0.728409
Precipitation during the coldest quarter 0.735953
Ratio of precipitation to potential evapotranspiration 0.778997
Sum of monthly Tavg where Tavg >=5 deg C 0.86439
Available water holding capacity of soil 1.08856
Solar interception 1.10207
Bulk density of soil 1.10935
Temperature during the coldest quarter 2.11977