The lowest monthly average temperature in Santee for December is 56 degrees. The most monthly precipitation in Santee occurs in January with 0 inches. The air quality index in Santee is 22% worse than the national average. The pollution index in Santee is 96% better than the national average.
According to the US Census Bureau's population clock, the estimated 2015 United States population (July 2015) is over 321.3 million. This differs a bit from the 325.1 million estimated by the United Nations.
The first decennial census in the United States showed a population of just under four million people. Today, the U.S. population is estimated at more than 310 million. Here you will find a list of the U.S. population every ten years from the first official census in 1790 to the most recent in 2000. 1790 - 3,929,214. 1800 - 5,308,483.