Great Falls, MT (1944-1987) Fastest Mile (mph) 3-s peak gusts (mph) 3-s peak gusts (m/s) SW 57 70 31 NW 65 79 35 W 62 76 34 W 58 71 32 SW 64 77 34 W 65 79 35 SW 59 72 32 W 65 79 35 SW 59 72 32 W 60 73 33 W 64 77 34 SW 65 79 35 SW 73 88 39 SW 60 73 33 SW 67 81 36 SW 50 62 28 SW 74 89 40 SW 60 73 33 SW 66 80 36 SW 55 68 30 W 51 63 28 W 60 73 33 SW 55 68 30 SW 60 73 33 W 51 63 28 SW 51 63 28 SW 62 76 34 SW 51 63 28 SW 54 66 30 SW 52 64 29 SW 59 72 32 SW 56 69 31 SE 52 64 29 SW 49 61 27 SW 70 84 38 SW 62 76 34 NW 75 90 40 W 52 64 29 SE 51 63 28 SW 49 61 27 W 59 72 32 W 45 57 25 SW 46 58 26 SW 47 59 26