Precipitation during the wettest quarter 0.008473 Day/night diurnal temperature difference 0.131252 Temperature during the hottest quarter 0.232362 Nitrogen content of soil 0.234364 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.273544 Elevation 0.286027 Compound topographic index (relative wetness) 0.287312 Carbon content of soil 0.303646 Precipitation during the driest quarter 0.360008 Ratio of precipitation to potential evapotranspiration 0.373916 Precipitation during the coldest quarter 0.420136 Precipitation during the hottest quarter 0.534672 Bulk density of soil 0.53732 Solar interception 0.616183 Sum of monthly Tavg where Tavg >=5 deg C 0.69199 Available water holding capacity of soil 0.916719 Temperature during the coldest quarter 2.05512