The Arecibo 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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4.31 inches of rain fell in two days, the most for this week of the year since records began in 1937. The next wettest, 3.82 inches, fell in 1985.
Arecibo’s center stands about 30 ft above sea level. Within three miles the land runs from 0 ft to 340 ft, a difference of 340 ft: rolling country. Open water lies within three miles. The highest named summit within 15 miles is Loma Correa, about 920 ft, 10 miles southeast.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 15×.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR.
Arecibo has a tropical rainforest climate. Summer afternoons average 91° in June; winter nights fall to about 64° in January. About 78 inches of rain fall in a normal year.
On November 14 Arecibo normally reaches 87° and falls to 69°. The record high is 95°, in 1939; the record low 62°, in 1948. The most rain on this date, 3.44 in, fell in 1977.
Normals 1991–2020 and records since 1937 at Dos Bocas, 10 miles south-southeast, 170 ft higher. NOAA, through RCC-ACIS.
