The Makaha Valley plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.
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10.48 inches of rain fell in two days, the most for this week of the year since records began in 1983. The next wettest, 3.43 inches, fell in 2002.
Makaha Valley’s center stands about 860 ft above sea level. Within three miles the land runs from 0 ft to 3,570 ft, a difference of 3,570 ft: mountain country. Open water lies within three miles. The highest named summit within 15 miles is Kaʻala, about 3,990 ft, 3 miles east-northeast.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 5×.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR.
Makaha Valley has a tropical rainforest climate. Summer afternoons average 86° in August; winter nights fall to about 62° in January. About 52 inches of rain fall in a normal year.
On November 14 Makaha Valley normally reaches 82° and falls to 67°. The record high is 88°, in 2019; the record low 59°, in 1992. The most rain on this date, 7.10 in, fell in 1996.
Normals 1991–2020 and records since 1983 at Waimea Valley 892.2, 13 miles northeast, 820 ft lower. NOAA, through RCC-ACIS.
