Drought trends since 1950 for the four major Hawaiian Islands

 

Figure 2-7  All four major Hawaiian Islands (O‘ahu, Kaua‘i, Maui, and Hawai‘i Island) have experienced increasing winter drought severity since the 1950s, defined by a longer annual maximum number of consecutive dry days. Upward triangles denote the increasing drought trends, while downward triangles indicate decreasing trends. Black triangles are significant at the 5% level, and gray at the 10% level.

(From Chu, P.-S., Chen, Y. R., & Schroeder, T. A. (2010). Changes in precipitation extremes in the Hawaiian Islands in a warming climate. Journal of Climate, 23(18), 4881–4900. doi:10.1175/2010JCLI3484.1 © American Meteorological Society.  Used with permission.)