Precipitation during the hottest quarter 0.752641 Available water holding capacity of soil 0.782509 Precipitation during the driest quarter 0.949901 Nitrogen content of soil 0.978795 Compound topographic index (relative wetness) 1.01686 Precipitation during the coldest quarter 1.21106 Sum of monthly Tavg where Tavg >=5 deg C 1.2319 Solar interception 1.27851 Ratio of precipitation to potential evapotranspiration 1.67526 Temperature during the coldest quarter 1.87574 Precipitation during the wettest quarter 1.89417 Elevation 2.54958 Temperature during the hottest quarter 2.64838 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 3.57141 Bulk density of soil 5.77447 Carbon content of soil 5.81276 Day/night diurnal temperature difference 8.47234