Ronnie, I asked my colleague Cynthia Sellinger for information on Lake St. Clair Temperatures. Unfortunately, we don't have that data available in a tabular form at GLERL, however you can find seasonal temperatures in the following publications: 1. Lake Erie and Lake St. Clair Handbook 1993. Edited by Stanley Bolsenga and Charles Herdendorf. Wayne State University Press, Detroit. ISBN 0-8143-2470-3. 2. Derecki, J.A. Evaporation from Lake St. Clair. NOAA TM ERL GLERL-23. National Technical Information Service, Springfield, VA, 34pp. (1978) Good Luck, Margaret xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Margaret B. Lansing U.S. Dept. of Commerce National Oceanic & Atmospheric Administration Great Lakes Environmental Research Laboratory 2205 Commonwealth Blvd. Ann Arbor, MI 48105 [log in to unmask] 313-741-2289 (lab) 313-741-2210 (office) 313-741-2055 (fax) xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx