Thus, in humans, the nail of the index finger grows faster than that of the little finger; and fingernails grow up to four times faster than toenails. In humans, nails grow at an average rate of 3 mm (0.12 in) a month. Fingernails require three to six months to regrow completely, and toenails require 12 to 18 months.
Greenland Ranch, California, with 134°F on July 10, 1913, holds the record for the highest temperature ever officially recorded in the United States. This station is located in barren Death Valley which is about 140 mi long and 4–16 mi wide and runs north and south in southeastern California and southwestern Nevada.