December 10, 1953 . TO; R. FROM: G. J. Newgarden, 3rd, H-6 SUBJECT: NPG Climate Summary SYMBOL: H-6 1. W. Newman or R, q. Campbell, J-b Tl hee ee we ee Per request of Mr. Newman, J-6, there is attached hereto a climatic summary of surface winds and temperatures for the Nevada Proving Grounds. The summary is based on 11,7% observations which were taken at the CP during 1951, 2952, and 1953. The summary is believed to be more representative for the fall, spring, and winter months, and least representative for the swunmer months as anly a few observations were available for the stimer months. Wind directions used in Ehe summary represent the directions from which the wind w was blowing. 2. In summary, it was noted that the greatest percentage of winds with a northerly component occurred during the winter months, while southerly winds were predominate during the sumer months. Regardless of season, however, the strongest winds were predominately aoutherly. It was also noted the moderate or strong winds ocourred during the afternoon. Also of interest that the greatest percentage of the calm winds occurred during the night and is the fact that when the wints were light; i.e., less than 5MFH, during the night, the winds were predominately northerly. This gives evidence to air + drainage from the higher elevations over the dry lake beds which probably slope slightly in a north-south direction. It is believed that the enclosed temperature study is self-explanatary. /e/G.T-N. . weNG GEORGE J. NEWGARDEN, 3rd Phone 2=2983 NPG Wind Summary (3) BPG Temp. Summary (3) Sn QT LLNL 3/ peo Encs: