Nitrogen content of soil 0.442175 Precipitation during the driest quarter 0.44624 Temperature during the coldest quarter 0.538326 Precipitation during the hottest quarter 0.9561 Precipitation during the wettest quarter 0.986521 Compound topographic index (relative wetness) 1.1965 Precipitation during the coldest quarter 1.31968 Solar interception 1.58171 Temperature during the hottest quarter 1.75152 Ratio of precipitation to potential evapotranspiration 2.09523 Elevation 2.46177 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 2.52323 Available water holding capacity of soil 2.96625 Bulk density of soil 4.31295 Sum of monthly Tavg where Tavg >=5 deg C 4.40901 Carbon content of soil 4.72478 Day/night diurnal temperature difference 6.54551