Hold on you don't wanna get blown away by those tradwinds....!!!

These past couple of days have been quite windy... the gust of the winds got up to 50mph yesterday. This made me wonder if it was some strong trade winds blowing through the islands... so it made me come to the conclusion where do these so called "trade winds" come from? And why does it seem like only Hawaii and the south pacific have these trade winds and no other place in the world?
Picture from The Honolulu Advertiser

Trade winds come from:

The prevailing wind throughout the year is the east northeasterly trade wind. Consequently, in Hawaii the geographical term, "windward" has come to mean the trade wind rather than the existing wind. Nevertheless, the trade winds do vary greatly in frequency. They are sometimes virtually absent for long periods; at other times they blow for weeks on end. Generally, however, the trade winds are more persistent in summer than in winter. They range over the open sea near Hawaii from a minimum of about 50 percent of the time in January to a maximum of more than 90 percent in July and an annual frequency of about 70 percent.

In well-exposed areas the trade winds average about 15 miles an hour and are slight stronger in summer than winter. Trade winds exceed a speed of 31 miles an hour only about 2 percent of the time. Winds from other directions exceed this speed about 3 percent of the time.

The strongest and most damaging winds are not ordinarily the trade winds, except in places affected by local terrain. The strongest winds are those that accompany winter storms, severe thunderstorms, and infrequent hurricanes. High winds are most likely between November and March and may come from almost any direction. The strongest wind of recent years was a gust of 103 miles an hour at Kilauea Point, Kauai in August 1959 during Hurricane Dot. Gusts exceeding 80 miles an hour have occasionally occurred elsewhere.