Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.710043 Nitrogen content of soil 1.00374 Compound topographic index (relative wetness) 1.06614 Available water holding capacity of soil 1.10619 Precipitation during the driest quarter 1.19903 Temperature during the hottest quarter 1.2147 Elevation 1.2549 Precipitation during the wettest quarter 1.34697 Carbon content of soil 1.73349 Bulk density of soil 2.18008 Ratio of precipitation to potential evapotranspiration 2.20023 Sum of monthly Tavg where Tavg >=5 deg C 2.45103 Solar interception 2.58053 Precipitation during the hottest quarter 3.66375 Precipitation during the coldest quarter 4.00523 Day/night diurnal temperature difference 4.05468 Temperature during the coldest quarter 5.3223