East Hawaii lacked rain in September

Kelsey Walling/Tribune-Herald A hiker looks over Wai'ale Falls on Monday near the Piihonua Bridge in Hilo. The water flow has been lighter than usual recently.

The last month of the dry season was emphatically so for the windward Big Island, and the National Weather Service’s only official rain gauge to measure rainfall in double-digits in September was in Kona’s coffee belt, which experiences its rainy season in the summer.