Wind speed appear to be clustered closer to the lower end around the equator. There appears to be only a few outliers of higher wind speeds near the equator. Does not appear to matter whether you're in the northern or southern hemisphere. Wind speeds in general appear to cluster towards the lower end (between 0 to 20 Kms/hr). There appears to be no correlation between the relationships.
A weak correlation was identified in both the Northern and Southern Hemisphere between wind speed and distance to the equator.