Precipitation during the wettest quarter 0 Solar interception 0.0784 Precipitation during the driest quarter 0.19069 Carbon content of soil 0.22883 Nitrogen content of soil 0.357082 Bulk density of soil 0.634986 Available water holding capacity of soil 0.779219 Temperature during the hottest quarter 0.849407 Precipitation during the hottest quarter 0.938026 Precipitation during the coldest quarter 1.1026 Compound topographic index (relative wetness) 1.46218 Day/night diurnal temperature difference 1.61303 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.87984 Temperature during the coldest quarter 2.07694 Ratio of precipitation to potential evapotranspiration 2.22012 Sum of monthly Tavg where Tavg >=5 deg C 2.4333