Even visiting in the summer evenings will require a jacket or sweater at Mauna Kea. It has been provided by sources other than the Realtors Assoc. It’s by far the wettest spot among the four Kona coffee belt rain gauges, with Kealakekua and Honaunau at approximately 60 inches each, almost a third more rain than normal. Copyright, 1995-2015, REALTORS® Association of Maui, Inc. All Rights Reserved. Because Hawaiʻi is relatively close to the center of action of ENSO, its effects are strong here. And that has affected agriculture operations, especially the ranching sector, where pasture conditions are extremely bad,” he said. Mauna Kea, the highest elevated area in the state of Hawaii, offers a landscape and climate completely unique to the rest of the island. Kainaliu, with 48 inches, measured four inches, or 8% above its norm for the first nine months. “With the volcano continuing to be fairly quiet, it could help them with their rainfall on the Kona side,” Kodama said. Your Email address will be kept private, this form is secure and we never spam you. Average Rainfall for Hawaii in April The tables below give monthly averages for rainfall during April at cities, towns, resorts, parks and beaches in Hawaii. All gridded and tabular data and all other data presented here are available for reproduction and distribution for non-commercial use. The 2011 Rainfall Atlas of Hawai‘i was developed under an agreement between the State of Hawaiʻi Commission on Water Resource Management and the U.S. Army Corps of Engineers, Honolulu District under Section 22 of the Water Resources Development Act of 1974. The weather in Volcanoes National Park and the neighboring town of Volcano Village has an elevation of 4,000 feet above sea level, making it much cooler than the rest of the island. One possible explanation for the decline has to do with the weather disturbances that regularly disrupt the trade wind inversion and produce widespread rainfall over the islands. When weather disturbances, such as cold fronts, Kona storms, upper-level low-pressure systems, or tropical storms, affect the islands, extensive lifting can occur causing widespread clouds and rain. On all other parts of the island and depending on which activities you choose, a light sweater may come in handy during the evenings. “The Atlantic is usually opposite from the East Pacific and the Central Pacific, so the Atlantic has been very busy … in terms of the hurricane season.”. “The La Nina can produce quite a bit of windward rainfall, but in leeward areas, (drought) can persist, especially if the La Nina remains too strong.”. The data source must be prominently stated whenever presenting these data in any form or any product derived in whole or part from these data. Around the same time, over 11 years ago, I wrote about Lava Zones on the Big Island...a topic that became popular again during the 2018 Kilauea eruption. Please be nice. In the wintertime the temperatures can drop into the mid-60s Fahrenheit (15 degrees Celsius) at night, with an average of 81 to 84 degrees Fahrenheit (27 to 29 degrees Celsius at its warmest. ft. Because “trade winds” in Hawaiʻi blow persistently from the ENE direction, the pattern of cloudy, wet conditions on the windward slopes is familiar to everyone in Hawaiʻi. Each place has a total for the amount of precipitation it usually receives in a year. The American state of Hawaii, which covers the Hawaiian Islands, is tropical but it experiences many different climates, depending on altitude and surrounding. Thanks to the constant rain, Hilo and the surrounding area have lush, green surroundings that make up for the wet weather. Note the relatively even distribution of rainfall throughout the year at windward station Mountain View (right). Hawaii, USA: Annual Weather Averages August is the hottest month in Hawaii with an average temperature of 27°C (81°F) and the coldest is January at 23°C (73°F) with the most daily sunshine hours at … That level, where the bottom of the cloud can be found, is called the lifting condensation level (LCL). In essence, the TWI puts the brakes on rising air, preventing it from continuing to move up the windward mountain slopes, and directing the flow around the mountain instead.