Precipitation during the hottest quarter 0.445994 Precipitation during the coldest quarter 0.498671 Ratio of precipitation to potential evapotranspiration 0.688115 Available water holding capacity of soil 0.962765 Compound topographic index (relative wetness) 1.05057 Carbon content of soil 1.07476 Temperature during the hottest quarter 1.12293 Nitrogen content of soil 1.4332 Day/night diurnal temperature difference 1.636 Precipitation during the driest quarter 1.65962 Precipitation during the wettest quarter 1.74824 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.76855 Sum of monthly Tavg where Tavg >=5 deg C 1.81254 Bulk density of soil 1.95641 Temperature during the coldest quarter 2.36901 Solar interception 8.40987