Precipitation during the wettest quarter 0 Nitrogen content of soil 0.244718 Compound topographic index (relative wetness) 0.351599 Precipitation during the driest quarter 0.383905 Precipitation during the hottest quarter 0.729414 Bulk density of soil 0.900675 Temperature during the hottest quarter 0.970021 Precipitation during the coldest quarter 1.04476 Elevation 1.05201 Carbon content of soil 1.12677 Ratio of precipitation to potential evapotranspiration 1.30228 Solar interception 1.43177 Sum of monthly Tavg where Tavg >=5 deg C 1.4406 Day/night diurnal temperature difference 1.44479 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.69137 Available water holding capacity of soil 2.456 Temperature during the coldest quarter 2.57219