Bulk density of soil 0.72198 Nitrogen content of soil 0.816175 Carbon content of soil 0.832466 Precipitation during the hottest quarter 0.938026 Precipitation during the coldest quarter 1.1026 Precipitation during the driest quarter 1.15125 Available water holding capacity of soil 1.21908 Compound topographic index (relative wetness) 1.41375 Solar interception 1.50568 Temperature during the hottest quarter 1.52889 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 2.12589 Sum of monthly Tavg where Tavg >=5 deg C 2.23919 Ratio of precipitation to potential evapotranspiration 2.27255 Day/night diurnal temperature difference 2.49391 Temperature during the coldest quarter 3.76084 Precipitation during the wettest quarter 6.2e-05