"Station: Curtis, NE". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). National Oceanic and Atmospheric Administration. Retrieved December 10, 2021.
"Curtis, Frontier County". Center for Advanced Land Management Information Technologies. University of Nebraska. Archived from the original on August 9, 2014. Retrieved August 9, 2014.
"Curtis, Frontier County". Center for Advanced Land Management Information Technologies. University of Nebraska. Archived from the original on August 9, 2014. Retrieved August 9, 2014.