In December 2005, Fiore won the American Geophysical Union James R. Holton Junior Scientist Award for the research she conducted in the two years after earning her Ph.D. In July 2006, she earned the Presidential Early Career Award for Scientists and Engineers (PECASE). In December 2011, the American Geophysical Union awarded Fiore with the James B. Macelwane Medal, for her work in the geophysical sciences as an early career scientist. As specified by the Geophysical Union website, she met the criteria for the award with her high number of publications on atmospheric chemistry which aided to the scientific community's understanding of ozone pollution impacts. Since 2012, Fiore has received two grants from the United States Environmental Protection Agency to study U.S. air pollution and climate warming.