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.
According to the 2010 Census, the population of the United States is 308,745,538. Including active duty, national guard and reserves, the population of Americans in uniform is 2,317,761, meaning that less than1 percent, .75 percent to be exact, of the country's population is a member of the military.