Sum of monthly Tavg where Tavg >=5 deg C 0.698607
Precipitation during the driest quarter 0.709359
Precipitation during the wettest quarter 1.03397
Carbon content of soil 1.13362
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.2157
Nitrogen content of soil 1.21797
Available water holding capacity of soil 1.59023
Bulk density of soil 1.97785
Temperature during the hottest quarter 2.21292
Day/night diurnal temperature difference 2.40239
Compound topographic index (relative wetness) 2.60455
Ratio of precipitation to potential evapotranspiration 3.49704
Precipitation during the coldest quarter 4.12802
Temperature during the coldest quarter 4.79034
Precipitation during the hottest quarter 5.16621
Solar interception 5.95732