Making your data openly accessible has many potential benefits. For one discussion, including a possible "citation advantage" (i.e., increase in the likelihood that your work will be cited), see section "Open Access and Open Data" in "The academic, economic and societal impacts of Open Access: an evidence-based review".
Determine a journal publisher's policies with respect to making data accessible.
Lehigh's guide Research Data Management Services at Lehigh includes information about repositories where you can make your data accessible, as well as information about writing data management plans (DMPs) for grant funding agencies. In DMP's you can mention where you intend to archive your data.
See the see the section "Sharing your daa" from the section "After acceptance" in the University of Michigan library guide "Publishing in the Sciences".
Some articles about data sharing and open data: