Precipitation during the hottest quarter 0.61832 Available water holding capacity of soil 0.682651 Nitrogen content of soil 0.732298 Precipitation during the driest quarter 1.07024 Sum of monthly Tavg where Tavg >=5 deg C 1.10095 Precipitation during the coldest quarter 1.30814 Solar interception 1.40344 Compound topographic index (relative wetness) 1.40945 Precipitation during the wettest quarter 1.53175 Ratio of precipitation to potential evapotranspiration 1.7492 Elevation 1.87615 Temperature during the coldest quarter 1.98003 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 2.56932 Temperature during the hottest quarter 2.66112 Carbon content of soil 3.33147 Bulk density of soil 4.00406 Day/night diurnal temperature difference 9.94397