Strong winds exhibited two trends, first diminishing from 1951 to roughly 1970, followed by an increasing trend to the present time. In addition, wind-temperature-dew point cycles of 2½ to 5 years were manifested in the data. Interestingly, no correlation with NAO and ENSO indices was found. The decade of the 1950s was found to be noticeably more active in terms of strong wind events than the succeeding decades to present.
An examination of the monthly mean winds showed that the maximum mean wind occurs in the months of March and April and is nearly identical for both of these months, whereas the minimum occurs in August. On the other hand, when the wind speeds are restricted to those above 25 mph, the maximum is in August-September whereas the minimum is in May. This indicates the strong influence of tropical weather systems. However, by selecting periods where strong winds occurred for prolonged periods of 5 or more hours, the monthly peak occurs during February and March. These events are caused by migratory low pressure systems and strong cold fronts.