Some links to information you might find useful:
National Weather Service – Fair Haven
About Lake Ontario (wikipedia)
Wayne County Water and Sewer Authority
Lake Ontario surface water temperature
Blind Sodus Bay REDI Project – project information from Wayne County Soil and Water project managers.
NOAA Lake Ontario Water Level – Official monitoring station at Oswego
IJC Lake Ontario Outflow – record of Lake Ontario outflow changes as decided by the International Joint Commission