Shared Enterprise Geodata and Services (SEGS) provides an EPA-curated collection of recommended geodata assets that are nationally relevant and support the Agency’s mission to protect human health and the environment. By connecting EPA users with curated datasets and promoting service reuse, SEGS aims to enhance information access, reduce data-storage costs, and improve the consistency and quality of data at the US EPA.

Developed by the U.S. EPA Office of Air and Radiation, this content item depicts show the total change in the average seasonal temperature for each of the contiguous 48 states from 1896 to 2021, in degrees Fahrenheit based on NOAA 2021. Total change in temperature was calculated from the long-term average rate of change. The three-month seasons are defined as follows: winter (December, January, February), spring (March, April, May), summer (June, July, August), and fall (September, October, November). For more information, please visit the U.S. EPA climate change indicators webpage. These data and their corresponding metadata records can be downloaded from the EPA Environmental Dataset Gateway (EDG).