Precipitation during the hottest quarter 0.435101 Ratio of precipitation to potential evapotranspiration 0.755918 Nitrogen content of soil 0.774077 Precipitation during the coldest quarter 0.864587 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.879144 Elevation 1.06077 Precipitation during the driest quarter 1.13992 Precipitation during the wettest quarter 1.25472 Compound topographic index (relative wetness) 1.30337 Available water holding capacity of soil 1.38957 Temperature during the hottest quarter 1.42366 Solar interception 1.69169 Bulk density of soil 1.85368 Carbon content of soil 1.9917 Sum of monthly Tavg where Tavg >=5 deg C 2.44381 Temperature during the coldest quarter 2.91279 Day/night diurnal temperature difference 5.28344