Precipitation during the wettest quarter 0
Solar interception 0.007345
Nitrogen content of soil 0.014698
Ratio of precipitation to potential evapotranspiration 0.106923
Bulk density of soil 0.111469
Temperature during the hottest quarter 0.130365
Precipitation during the coldest quarter 0.136281
Precipitation during the driest quarter 0.143102
Carbon content of soil 0.191209
Available water holding capacity of soil 0.195779
Sum of monthly Tavg where Tavg >=5 deg C 0.268203
Temperature during the coldest quarter 0.496133
Day/night diurnal temperature difference 0.524514
Precipitation during the hottest quarter 0.551331
Compound topographic index (relative wetness) 0.558668
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.76009