Ratio of precipitation to potential evapotranspiration 0.767669
Nitrogen content of soil 0.839076
Sum of monthly Tavg where Tavg >=5 deg C 0.930166
Precipitation during the coldest quarter 0.957299
Carbon content of soil 0.973088
Solar interception 1.06486
Precipitation during the driest quarter 1.14193
Compound topographic index (relative wetness) 1.25707
Precipitation during the wettest quarter 1.25815
Precipitation during the hottest quarter 1.30939
Bulk density of soil 1.54906
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.67919
Day/night diurnal temperature difference 1.77453
Available water holding capacity of soil 2.51071
Temperature during the hottest quarter 2.7647
Temperature during the coldest quarter 4.95689