Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.22868 Nitrogen content of soil 1.26711 Precipitation during the driest quarter 1.43542 Compound topographic index (relative wetness) 1.60319 Precipitation during the wettest quarter 1.61385 Temperature during the hottest quarter 1.9318 Elevation 2.048 Available water holding capacity of soil 2.10165 Ratio of precipitation to potential evapotranspiration 2.35388 Solar interception 2.55181 Bulk density of soil 2.57621 Carbon content of soil 2.68938 Sum of monthly Tavg where Tavg >=5 deg C 3.43766 Precipitation during the hottest quarter 3.83288 Precipitation during the coldest quarter 3.99518 Day/night diurnal temperature difference 5.26127 Temperature during the coldest quarter 5.27929