If temperatures drop below freezing for a very short period of time, damage to tender plants is typically minimal. If the same temperature is reached but maintained for several hours, freeze damage to plants is more severe.
Salt Lake City makes up a very small portion of the Salt Lake Valley. With Salt Lake County covering 756 square miles, Salt Lake City covers only 90.5 square miles. Salt Lake City is the largest city in the state with a population of 181,743. Salt Lake County's population is 1.3 million, making it the most populous region in Utah. Overall, Utah is expected to continue to have the youngest population in the nation.
Salt Lake City has a total area of 110.4 square miles (286 km 2) and an average elevation of 4,327 feet (1,319 m) above sea level. The lowest point within the boundaries of the city is 4,210 feet (1,280 m) near the Jordan River and the Great Salt Lake, and the highest is Grandview Peak, at 9,410 feet (2,868 m).