Temperature during the hottest quarter 0.326072 Precipitation during the hottest quarter 0.413273 Precipitation during the coldest quarter 0.425301 Available water holding capacity of soil 0.598308 Ratio of precipitation to potential evapotranspiration 0.654727 Bulk density of soil 0.866374 Nitrogen content of soil 0.922929 Carbon content of soil 0.933566 Compound topographic index (relative wetness) 0.945942 Precipitation during the wettest quarter 0.986347 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.38383 Precipitation during the driest quarter 1.4797 Sum of monthly Tavg where Tavg >=5 deg C 1.57479 Day/night diurnal temperature difference 1.62258 Temperature during the coldest quarter 1.77885 Solar interception 6.96795