Day/night diurnal temperature difference 0.210713
Precipitation during the wettest quarter 0.300173
Nitrogen content of soil 0.324084
Carbon content of soil 0.475198
Ratio of precipitation to potential evapotranspiration 0.660739
Precipitation during the driest quarter 0.677933
Precipitation during the hottest quarter 0.727081
Sum of monthly Tavg where Tavg >=5 deg C 0.73799
Precipitation during the coldest quarter 0.821359
Compound topographic index (relative wetness) 0.853763
Solar interception 0.97499
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.10894
Bulk density of soil 1.70929
Temperature during the coldest quarter 1.92824
Available water holding capacity of soil 2.26239
Temperature during the hottest quarter 2.44997