Precipitation during the hottest quarter 0.488371 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.903208 Carbon content of soil 1.01475 Precipitation during the coldest quarter 1.04823 Nitrogen content of soil 1.146 Precipitation during the driest quarter 1.28444 Compound topographic index (relative wetness) 1.32571 Temperature during the hottest quarter 1.43259 Ratio of precipitation to potential evapotranspiration 1.72607 Temperature during the coldest quarter 1.86145 Precipitation during the wettest quarter 2.01316 Day/night diurnal temperature difference 2.02458 Sum of monthly Tavg where Tavg >=5 deg C 2.78035 Available water holding capacity of soil 4.40248 Bulk density of soil 4.92089 Solar interception 7.2424