Precipitation during the hottest quarter 0.354945 Temperature during the hottest quarter 0.395779 Precipitation during the wettest quarter 0.448115 Precipitation during the coldest quarter 0.4756 Ratio of precipitation to potential evapotranspiration 0.551927 Carbon content of soil 0.580694 Available water holding capacity of soil 0.625354 Compound topographic index (relative wetness) 0.723526 Nitrogen content of soil 0.859304 Precipitation during the driest quarter 0.953902 Bulk density of soil 1.22085 Day/night diurnal temperature difference 1.33434 Temperature during the coldest quarter 1.38849 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.63974 Sum of monthly Tavg where Tavg >=5 deg C 1.78772 Solar interception 7.50779