GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 442, Approximate Location: 44.10 N. Latitude, 77.58 W. Longitude Site Name Trenton on Lake Ontario ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1948 3 8 22 -1 -1 -1 -1 -1 -1 -1 335.TIF 1951 3 19 -1 -1 LI -1 -1 -1 -1 -1 -1 362.TIF TO TORONTO 1954 3 1 -1 -1 RT -1 -1 SW -1 -1 -1 -1 381.TIF WESTWARD 1954 3 1 -1 -1 OW -1 -1 -1 -1 -1 -1 381.TIF MOUTH OF RIVER 1954 3 15 -1 -1 SO -1 -1 SW -1 -1 -1 -1 383.TIF TO BELLEVILLE 1956 2 27 -1 -1 SO -1 -1 -1 -1 -1 -1 398.TIF TO NORTH CHANNEL 1956 4 16 -1 -1 FD -1 -1 DI -1 -1 RT -1 -1 406.TIF 3Mi EAST 1957 3 25 -1 -1 SW -1 -1 -1 -1 -1 -1 413.TIF TO POINT ANNE: ALONG SHORE 1965 2 23 -1 -1 SO -1 -1 CL -1 -1 -1 -1 473.TIF TO ST. LAWRENCE 1965 3 1 -1 -1 LI -1 -1 -1 -1 -1 -1 474.TIF TO FAIR HAVEN: WESTWARD 1965 3 15 17 -1 FS -1 -1 CL -1 -1 -1 -1 476.TIF 1968 2 26 20 -1 -1 -1 -1 -1 -1 -1 521.TIF ---------------------------------------------------------------------------------------------------------- Ice thickness is in inches, -1 = no thickness reported, see report for ice conditon codes. T1 = ice thickness or part of a range if T2 is present, C1 = primary condtion of ice. T1C1 = thickness of C1 or part of range if T2C1 is presnet. C2, T1C2, T2C2, C3, T1C3, T2C3 are secondary and ternary ice conditon and condition thickness.