Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.469747 Precipitation during the driest quarter 0.480035 Available water holding capacity of soil 0.526592 Temperature during the hottest quarter 0.63641 Precipitation during the wettest quarter 0.695288 Compound topographic index (relative wetness) 0.801917 Nitrogen content of soil 0.804465 Elevation 1.10118 Carbon content of soil 1.2697 Day/night diurnal temperature difference 1.56302 Bulk density of soil 1.65296 Sum of monthly Tavg where Tavg >=5 deg C 1.88116 Solar interception 2.50686 Ratio of precipitation to potential evapotranspiration 3.49921 Temperature during the coldest quarter 3.96016 Precipitation during the coldest quarter 3.99518 Precipitation during the hottest quarter 5.10523