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.
Utah Population 2017. 3,098,761. Located in the central southern sector of the USA, the state of Utah is the 13th largest in terms of land mass, but it is very sparsely populated by comparison. Around 80% of Uath's residents live in the surroundings of Salt Lake City; therefore, there are vast areas which are simply uninhabited. As of 2018, the state's estimated population is 3.16 million. If you take a look at the map above you can get population data for each county in Utah and see just how empty parts of the state are.