Climate

With a precipitation slightly above 465 mm,^[11] the city can be considered the watershed between the dry climates of the American West to the humid climates of the American East, although closer to the former, with a center characterized by the steppes and medium precipitation marking the east limit of the group B of dry climates (except for the hot versions on the subcontinent) for the 99.9 °W meridian.^[12] From the climatic map of the University of Melbourne, Gettysburg is the easternmost city in North America with a semi-arid cold climate (Köppen: Bsk).^[12][13] The average high temperature is 12.7 °C and the low average is -0.4 °C, which makes temperatures below the freezing point predominate for at least part of the year. The annual average snow is of 99 cm. For the official data of the NOAA/Weather Service: the average annual precipitation is of 501 mm, by which it strengthens its role of confluence. The wettest months range from May to July ranging from 72 to 88 mm and the driest January (only 9 mm). The amount of snow is average in proportion to its cold weather surpassing the 20 cm between February and March.^[14]

2010 census

As of the census^[5] of 2010, there were 1,162 people, 534 households, and 310 families living in the city. The population density was 614.8 inhabitants per square mile (237.4/km²). There were 617 housing units at an average density of 326.5 per square mile (126.1/km²). The racial makeup of the city was 97.3% White, 0.3% African American, 1.2% Native American, 0.2% Asian, and 1.0% from two or more races. Hispanic or Latino of any race were 0.6% of the population.

There were 534 households, of which 21.9% had children under the age of 18 living with them, 49.1% were married couples living together, 5.1% had a female householder with no husband present, 3.9% had a male householder with no wife present, and 41.9% were non-families. 37.8% of all households were made up of individuals, and 21.8% 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 2.74.

The median age in the city was 50.3 years. 19.7% of residents were under the age of 18; 4.7% were between the ages of 18 and 24; 18.1% were from 25 to 44; 29.7% were from 45 to 64; and 27.6% were 65 years of age or older. The gender makeup of the city was 48.4% male and 51.6% female.

2000 census

As of the census^[5] of 2000, there were 1,352 people, 588 households, and 365 families living in the city. The population density was 725.1 inhabitants per square mile (280.0/km²). There were 683 housing units at an average density of 366.3 per square mile (141.4/km²). The racial makeup of the city was 97.93% White, 1.26% Native American, 0.07% Asian, and 0.74% from two or more races. Hispanic or Latino of any race were 0.15% of the population.

There were 588 households, out of which 26.9% had children under the age of 18 living with them, 52.9% were married couples living together, 6.0% had a female householder with no husband present, and 37.9% were non-families. 36.4% of all households were made up of individuals, and 20.6% had someone living alone who was 65 years of age or older. The average household size was 2.21 and the average family size was 2.88.

In the city, the population was spread out, with 23.9% under the age of 18, 4.0% from 18 to 24, 21.8% from 25 to 44, 24.3% from 45 to 64, and 26.0% who were 65 years of age or older. The median age was 45 years. For every 100 females, there were 92.0 males. For every 100 females age 18 and over, there were 87.8 males.

As of 2000 the median income for a household in the city was $30,469, and the median income for a family was $37,763. Males had a median income of $26,316 versus $16,979 for females. The per capita income for the city was $16,516. About 7.9% of families and 10.7% of the population were below the poverty line, including 14.4% of those under age 18 and 11.3% of those age 65 or over.