Brighton Webs Ltd.
Statistics for Energy and the Environment
The table below shows the number of hours per year the wind speed can be expected to be within a given range assuming a Rayleigh distribution.
| Mean | m/s | 1.0 | 2.0 | 3.0 | 4.0 | 5.0 | 6.0 | |
| mph | 2.2 | 4.5 | 6.7 | 8.9 | 11.2 | 13.4 | ||
| Mode | m/s | 0.8 | 1.6 | 2.4 | 3/2 | 4.0 | 4.8 | |
| mph | 1.8 | 3.6 | 5.3 | 7.1 | 8.9 | 10.7 | ||
| Interval | m/s | mph | ||||||
| 0-1 | 0.0-2.2 | 4766 | 1562 | 732 | 420 | 271 | 189 | |
| 1-2 | 2.2-4.5 | 3615 | 3204 | 1849 | 1142 | 764 | 543 | |
| 2-3 | 4.5-6.7 | 371 | 2498 | 2185 | 1567 | 1123 | 830 | |
| 3-4 | 6.7-8.9 | 7 | 1118 | 1826 | 1638 | 1303 | 1019 | |
| 4-5 | 8.9-11.2 | 0 | 314 | 1180 | 1426 | 1305 | 1102 | |
| 5-6 | 11.2-13.4 | 0 | 57 | 610 | 1071 | 1167 | 1083 | |
| 6-7 | 13.4-15.6 | 0 | 7 | 257 | 706 | 948 | 986 | |
| 7-8 | 15.6-17.8 | 0 | 1 | 89 | 412 | 706 | 839 | |
| 8-9 | 17.8-20.1 | 0 | 0 | 25 | 214 | 485 | 672 | |
| 9-10 | 20.1-22.3 | 0 | 0 | 6 | 100 | 309 | 508 | |
| 10-11 | 22.3-24.5 | 0 | 0 | 1 | 42 | 183 | 363 | |
| 11-12 | 24.5-26.8 | 0 | 0 | 0 | 16 | 101 | 247 | |
| 12-13 | 26.8-29.0 | 0 | 0 | 0 | 5 | 52 | 159 | |
| 13-14 | 29.0-31.2 | 0 | 0 | 0 | 2 | 25 | 98 | |
| 14-15 | 31.2-33.5 | 0 | 0 | 0 | 0 | 11 | 57 | |
| 15-16 | 33.5-35.7 | 0 | 0 | 0 | 0 | 5 | 32 | |
| 16-17 | 35.7-37.9 | 0 | 0 | 0 | 0 | 2 | 17 | |
| 17-18 | 37.9-40.1 | 0 | 0 | 0 | 0 | 1 | 9 | |
| 18-19 | 40.1-42.4 | 0 | 0 | 0 | 0 | 0 | 4 | |
| 19-20 | 42.4-44.6 | 0 | 0 | 0 | 0 | 0 | 2 | |
| 20-21 | 44.6-46.8 | 0 | 0 | 0 | 0 | 0 | 1 | |
| 21-22 | 46.8-49.1 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 22-23 | 49.1-51.3 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 23-24 | 51.3-53.5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 24-25 | 53.5-55.8 | 0 | 0 | 0 | 0 | 0 | 0 |