−12 °C). July averages , with high temperatures reaching on an average of 47 days per year, though readings are not seen most years. January averages , with temperatures in the suburbs slightly cooler due largely to the urban heat island effect. Lows at or below freezing can be expected 36 nights annually, but the last occurrence of temperatures below was January 6, 2014. Extremes range from on February 13, 1899 to on June 30, 2012. Average dewpoints in the summer range from in June to in July. Typical of the southeastern U.S., Atlanta receives abundant rainfall that is evenly distributed throughout the year, though late spring and early fall are somewhat drier. The average annual precipitation is , while snowfall is typically light with a normal of per winter. The heaviest single snowfall occurred on January 23, 1940, with around of snow. However, ice storms usually cause more problems than snowfall does, the most severe occurring on January 7, 1973. Tornadoes are rare in the city itself, but the March 14, 2008 EF2 tornado damaged prominent structures in downtown Atlanta. Demographics Population The 2020 United States census reported that Atlanta had a population of 498,715. The population density was 3,685.45 persons per square mile (1,422.95/km2). The racial makeup and population of Atlanta was 51.0% Black or African American, 40.9% White, 4.2% Asian and 0.3% Native American, and 1.0% from other races. 2.4% of the population reported two or more races. Hispanics of any race made up 6.0% of the city's population. The median income for a household in the city was $66,657. The per capita income for the city was $54,414. 20.2% percent of the population was living below the poverty line. In the 1920s, the black population began to grow in Southern metropolitan cities like Atlanta, Birmingham, Houston, and Memphis. In the 2010 census, Atlanta was recorded as the nation's fourth-largest majority-black city. The New Great Migration brought an insurgence of African Americans from California and the North to the Atlanta area. It has long been known as a center of African-American political power, education, economic prosperity, and culture, often called a black mecca. Some middle and upper class African-American residents of Atlanta followed an influx of whites to newer housing and public schools in the suburbs in the early 21st century. From 2000 to 2010, the city's black population decreased by 31,678 people, shrinking from 61.4% of