ADDITIONAL WEATHER INFORMATION Average Air Temperature: 13.8 degrees C 287.0 K Lid Height: 639.1 meters Surface Roughness Height: 0.010 meters Height of Wind Measurements: 30.0 meters Average Wind Speed: 1.556 m/s Vertical Temperature Gradients: STABILITY A -0.137 K/m STABILITY B -0.118 K/m STABILITY C -0.156 K/m STABILITY D -0.026 K/m STABILITY E -0.043 K/m STABILITY F 0.230 K/m STABILITY G 0.507 K/m