Gretna, Nebraska has a mild climate with warm summers and cold winters. The average high temperature in the summer months ranges from 80-90 degrees Fahrenheit, while during the winter months it averages around 25-40 degrees. Precipitation levels are moderate throughout the year, with an average of 26 inches of rainfall annually. Snowfall is also common in the winter months with an average of 18 inches per year. On days when temperatures reach over 100 degrees Fahrenheit, residents take advantage of Gretna’s many outdoor activities to stay cool.
Gretna, Nebraska gets 32 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Gretna averages 35 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 216 sunny days per year in Gretna. The US average is 205 sunny days.
Gretna gets some kind of precipitation, on average, 93 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 87 degrees
Winter Low: the January low is 12
Rain: averages 32 inches of rain a year
Snow: averages 35 inches of snow a year