Day/night diurnal temperature difference 0.062559 Temperature during the hottest quarter 0.204355 Precipitation during the wettest quarter 0.251008 Compound topographic index (relative wetness) 0.329768 Nitrogen content of soil 0.608433 Carbon content of soil 0.701271 Precipitation during the driest quarter 0.758746 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.942434 Elevation 1.05727 Precipitation during the coldest quarter 1.18001 Precipitation during the hottest quarter 1.20291 Sum of monthly Tavg where Tavg >=5 deg C 1.38581 Bulk density of soil 1.42415 Ratio of precipitation to potential evapotranspiration 1.51872 Available water holding capacity of soil 1.77 Solar interception 1.98194 Temperature during the coldest quarter 2.9024