ADDITIONAL WEATHER INFORMATION Average Air Temperature: 15.7 degrees C 288.8 K Precipitation: 195.1 cm/y Humidity : 10.7 g/cu m Lid Height: 691.4 meters Surface Roughness Height: 0.010 meters Height of Wind Measurements: 20.0 meters Average Wind Speed: 1.963 m/s Stability - Sigma Phi Average: STABILITY A 23.315 (Day) STABILITY B 20.759 (Day) STABILITY C 14.758 (Day) STABILITY D 11.813 (Day/Night) STABILITY E 13.349 (Night) STABILITY F 13.275 (Night) STABILITY G 12.755 (Night)