Precipitation during the driest quarter 0.618965 Carbon content of soil 0.688606 Precipitation during the wettest quarter 0.842344 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.864654 Precipitation during the hottest quarter 0.989971 Temperature during the hottest quarter 1.09613 Nitrogen content of soil 1.16608 Precipitation during the coldest quarter 1.20603 Ratio of precipitation to potential evapotranspiration 1.55373 Compound topographic index (relative wetness) 1.6043 Day/night diurnal temperature difference 2.26527 Temperature during the coldest quarter 2.38114 Sum of monthly Tavg where Tavg >=5 deg C 3.2943 Bulk density of soil 5.18529 Available water holding capacity of soil 5.41257 Solar interception 9.79058