The Southeast Climate Consortium (SECC) is a multi-disciplinary, multi-institutional program with the goal to develop a climate information and decision support systems for the Southeastern USA. Climate variability, especially variability associated with extreme climate events, is a major source of risk to agriculture. Through the combination of climate science, which allows us to predict probable climate conditions, with agricultural science, which allows us to predict how crop will respond to meteorological variables, the SECC has developed a suite of information products, decision support tools, and outlooks, which are disseminated via the Internet at http://AgClimate.org. Development of all products followed a participatory approach that involved extension agents, farmers, forest managers, and other users of these products from the beginning. This iterative process of product development, assessments by users, and product modification has assured that SECC products are scientifically sound, yet relevant and wanted by decision makers so that these products can contribute to an improved quality of life, increased profitability, decreased economic risks, and more ecologically sustainable management of agriculture, forestry, and water resources.