I scrunched down the year display until I got just one wind direction for each year, and hope that that is giving me the yearly average for each year.
Each average gave a mph, and an angle direction (from due south, in a counter-clockwise sense). So 90 would mean heading due east. The result of averaging over 41 years is an average speed of 6.35 mph, and a direction of 130.69 (about 41 degrees from due east in a north-easterly direction).