"Station: Muscatine, IA". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). National Oceanic and Atmospheric Administration. Archived from the original on June 26, 2021. Retrieved June 25, 2021.
"Station: Muscatine, IA". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). National Oceanic and Atmospheric Administration. Archived from the original on June 26, 2021. Retrieved June 25, 2021.