Table 4: Observed and long-term means for rainfall and temperature data during April through September (A–S) near sites on which switchgrass was grown in the upper Southeast USA. Departure from long-term (30 yr) normal was obtained by subtracting total precipitation and mean temperature from their respective long-term values.

Location1Long-termA–S observed Departure from long-term
A–S2000200120002001

Precipitation (cm)
KY64.362.162.2−2.2−2.1
NC58.6101.378.342.719.7
TN157.974.063.316.15.4
TN265.654.260.5−11.4−5.1
VA1,251.666.261.914.610.3
VA358.762.353.43.6−5.3
WV58.562.662.04.13.5
Mean59.369.063.19.63.8

Mean temperature (°C)
KY21.625.722.34.20.8
NC18.724.221.65.52.9
TN121.023.821.22.90.2
TN222.125.622.73.50.5
VA1,217.820.418.02.60.2
VA320.022.419.92.4−0.1
WV18.520.418.31.9−0.2
Mean19.923.220.63.30.6

Locations: KY (Princeton), NC (Raleigh), TN1 (Jackson), TN2 (Knoxville), VA1,2 (Blacksburg), VA3 (Orange), and WV (Morgantown).