Rows = month | Columns = wind direction (CCW from N) | Cells = RF flyable days (at alignment 0.9) / total days (wind 4–40 km/h)
| N | NNW | NW | WNW | W | WSW | SW | SSW | S | SSE | SE | ESE | E | ENE | NE | NNE | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | - | 1/7 | 4/10 | 2/15 | 3/21 | 10/62 | 10/40 | 6/38 | 5/15 | 2/6 | 2/5 | 1/3 | 1/4 | 3/8 | 0/6 | 1/2 |
| Feb | 1/1 | 3/6 | 3/5 | 1/9 | 2/23 | 5/40 | 3/17 | 10/37 | 9/22 | 6/8 | 7/7 | 3/6 | 5/10 | 6/16 | 5/7 | 3/4 |
| Mar | 5/6 | 6/9 | 8/15 | 8/19 | 13/26 | 11/37 | 5/21 | 11/23 | 3/8 | 9/11 | 10/15 | 4/8 | 7/16 | 10/18 | 6/7 | 4/8 |
| Apr | 9/10 | 11/13 | 9/20 | 8/15 | 11/24 | 7/24 | 2/11 | 4/10 | 6/10 | 1/5 | 8/10 | 8/8 | 9/26 | 10/20 | 17/26 | 6/7 |
| May | 15/15 | 10/14 | 10/22 | 14/23 | 11/33 | 7/20 | 3/16 | 3/8 | 3/5 | 2/4 | 3/10 | 5/8 | 11/15 | 19/28 | 7/10 | 9/14 |
| Jun | 5/6 | 11/14 | 9/14 | 14/28 | 18/37 | 8/26 | 10/20 | 6/15 | 3/4 | 7/8 | 11/12 | 7/8 | 6/10 | 14/16 | 9/12 | 6/7 |
| Jul | 2/2 | 4/5 | 25/42 | 22/42 | 15/43 | 13/39 | 6/20 | 8/12 | 4/5 | 3/3 | 5/7 | 3/4 | 5/9 | 7/8 | 4/4 | - |
| Aug | 8/11 | 9/11 | 11/16 | 16/20 | 17/32 | 24/51 | 14/26 | 10/18 | 6/7 | 7/9 | 6/6 | 6/6 | 6/6 | 9/10 | 6/7 | 4/7 |
| Sep | 5/5 | 6/8 | 8/11 | 6/15 | 19/30 | 12/37 | 13/28 | 15/26 | 5/6 | 6/7 | 14/16 | 5/5 | 9/11 | 14/16 | 4/7 | 3/4 |
| Oct | 1/2 | 0/2 | 1/4 | 8/17 | 10/33 | 5/29 | 12/29 | 13/42 | 13/25 | 10/17 | 9/13 | 5/7 | 7/10 | 3/4 | 2/4 | 3/4 |
| Nov | 1/1 | 1/3 | 0/1 | 1/8 | 6/17 | 6/28 | 8/33 | 6/41 | 14/34 | 8/17 | 4/7 | 7/16 | 4/12 | 3/9 | 1/4 | - |
| Dec | - | - | 1/4 | 3/13 | 1/23 | 1/31 | 5/38 | 5/33 | 8/35 | 6/19 | 5/7 | 0/3 | 1/2 | 3/9 | 2/4 | 0/2 |
| Total | 52/59 | 62/92 | 89/164 | 103/224 | 126/342 | 109/424 | 91/299 | 97/303 | 79/176 | 67/114 | 84/115 | 54/82 | 71/131 | 101/162 | 63/98 | 39/59 |