Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.77236
Precipitation during the coldest quarter 0.794929
Nitrogen content of soil 0.866363
Ratio of precipitation to potential evapotranspiration 0.890882
Sum of monthly Tavg where Tavg >=5 deg C 1.03119
Precipitation during the driest quarter 1.15169
Compound topographic index (relative wetness) 1.23327
Solar interception 1.28121
Precipitation during the hottest quarter 1.28322
Bulk density of soil 1.33937
Available water holding capacity of soil 1.35807
Precipitation during the wettest quarter 1.72437
Carbon content of soil 1.76399
Temperature during the hottest quarter 1.84653
Elevation 2.35304
Temperature during the coldest quarter 3.29562
Day/night diurnal temperature difference 10.511