ADDITIONAL WEATHER INFORMATION Average Air Temperature: 15.3 degrees C 288.4 K Precipitation: 170.3 cm/y Humidity: 9.8 g/cu m Lid Height: 669.2 meters Surface Roughness Height: 0.010 meters Height of Wind Measurements: 10.0 meters Average Wind Speed: 2.123 m/s Stability - Sigma Phi Average: STABILITY A 22.61 (Day) STABILITY B 14.75 (Day) STABILITY C 11.40 (Day) STABILITY D 12.14 (Day/Night) STABILITY E 8.10 (Night) STABILITY F 6.35 (Night) STABILITY G 6.18 (Night)