of . Most snowfall occurs from December through March. There is usually little or no snow in April and November, and snow is rare in May and October. Demographics 2010 census As of the census of 2010, there were 19,136 people, 8,802 households, and 4,490 families residing in the city. The population density was . There were 9,756 housing units at an average density of . The racial makeup of the city was 94.1% White, 1.1% African American, 0.7% Native American, 1.5% Asian, 0.1% Pacific Islander, 0.4% from other races, and 2.3% from two or more races. Hispanic or Latino of any race were 1.8% of the population. There were 8,802 households, of which 23.0% had children under the age of 18 living with them, 35.2% were married couples living together, 11.8% had a female householder with no husband present, 4.0% had a male householder with no wife present, and 49.0% were non-families. 39.8% of all households were made up of individuals, and 13.6% had someone living alone who was 65 years of age or older. The average household size was 2.08 and the average family size was 2.76. The median age in the city was 43.2 years. 18.3% of residents were under the age of 18; 8.1% were between the ages of 18 and 24; 26% were from 25 to 44; 29.4% were from 45 to 64; and 18% were 65 years of age or older. The gender makeup of the city was 48.6% male and 51.4% female. 2000 census As of the census of 2000, there were 18,560 people, 8,565 households, and 4,607 families residing in the city. The population density was . There were 9,480 housing units at an average density of . The racial makeup of the city was 96.21% White, 0.50% Black or African American, 0.48% Native American, 1.35% Asian, 0.01% Pacific Islander, 0.16% from other races, and 1.3% from two or more races. 0.86% of the population were Hispanic or Latino of any race. There were 8,565 households, out of which 24.3% had children under the age of 18 living with them, 39.1% were married couples living together, 10.9% had a female householder with no husband present, and 46.2% were non-families. 38.3% of all households were made up of individuals, and 14.2% had someone living alone who was 65 years of age or older. The average household size was 2.10 and the average family