Precipitation during the wettest quarter 0 Day/night diurnal temperature difference 0.112421 Temperature during the hottest quarter 0.236184 Nitrogen content of soil 0.33212 Precipitation during the driest quarter 0.34714 Carbon content of soil 0.400369 Compound topographic index (relative wetness) 0.406444 Precipitation during the hottest quarter 0.538541 Bulk density of soil 0.786705 Sum of monthly Tavg where Tavg >=5 deg C 0.849332 Precipitation during the coldest quarter 0.995498 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.00591 Elevation 1.25706 Solar interception 1.27182 Available water holding capacity of soil 1.36193 Ratio of precipitation to potential evapotranspiration 1.71303 Temperature during the coldest quarter 3.21695