These data sets contain vetted and filled meteorological data from a tower-based sensor array and a forest floor array for the Smithsonian Environmental Research Center in Edgewater, Maryland. The data currently cover the period of 2002 to 2019. Data include minute data and daily values for both the tower and forest floor. There are also two meta-data files: Readme.html and Updater.html. Readme.html introduces the basics of the offered datasets and explains variables and an overview of gap-filling. Updater.html offers a more detailed description of how data were collected, collated, vetted, adjusted / edited, and gap-filled. Most users will benefit from the base data files and the Readme.html. Instructions on citing the data are in Readme.html.