The average annual rainfall in Nebraska varies across the state but generally ranges from about 13 to 36 inches. The long-term average precipitation for Nebraska is approximately 22.8 inches per year based on data from 1895 to 1979

. More recent data (1991-2020) shows regional variation:

• Eastern Nebraska, including cities like Omaha and Lincoln, typically receives around 27 to 34 inches annually, with Omaha averaging about 31.9 inches and Lincoln about 29.3 inches

• South-Central Nebraska averages roughly 19 to 28 inches annually depending on the location

• North-Central Nebraska sees averages around 21 to 26 inches

• Western Nebraska is drier, with averages around 15 to 19 inches per year

For example, Omaha's average annual precipitation is about 30.62 inches, and Nebraska City receives about 33.7 inches annually

. In summary, Nebraska's average annual rainfall is roughly between 20 and 30 inches, with higher amounts in the eastern part of the state and lower amounts in the west. The overall state average is about 22.8 inches per year.