Day/night diurnal temperature difference 0.138239
Temperature during the hottest quarter 0.268941
Nitrogen content of soil 0.459408
Compound topographic index (relative wetness) 0.472576
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.506559
Available water holding capacity of soil 0.601823
Precipitation during the hottest quarter 0.632395
Carbon content of soil 0.66858
Elevation 0.692261
Precipitation during the wettest quarter 0.767646
Precipitation during the driest quarter 0.784456
Bulk density of soil 1.13985
Sum of monthly Tavg where Tavg >=5 deg C 1.15039
Precipitation during the coldest quarter 1.16739
Ratio of precipitation to potential evapotranspiration 1.54182
Solar interception 1.87206
Temperature during the coldest quarter 2.74588