Cleveland Lake Erie Water Temperature Averages

 LAKE ERIE AVERAGE TEMPERATURES OFF CLEVELAND 1971 - 2000											
												
    JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC
												
 1   36   33   34   38   47   57   67   74   73   67   56   46
 2   36   33   34   38   48   58   67   74   73   66   56   46
 3   36   33   34   38   48   58   68   74   73   66   56   45
 4   36   33   34   38   48   59   68   74   73   66   55   45
 5   36   33   34   39   48   59   68   74   73   65   55   45

 6   35   33   35   39   49   59   69   74   72   65   55   44
 7   35   33   35   39   49   60   69   74   72   64   54   44
 8   35   33   35   39   49   60   69   74   72   64   54   43
 9   35   33   35   40   49   60   70   74   72   64   54   43
10   35   33   35   40   50   61   70   74   72   63   53   43

11   35   33   35   40   50   61   70   74   72   63   53   43
12   34   33   35   41   50   61   70   74   72   63   53   42
13   34   33   35   41   50   62   70   74   72   62   52   42
14   34   33   35   41   51   62   71   74   72   62   52   41
15   34   33   35   41   51   62   72   74   71   62   51   41

16   34   33   35   42   52   63   72   74   71   61   51   41
17   34   33   35   42   52   63   72   74   71   61   50   40
18   34   33   35   42   53   63   72   74   70   61   50   40
19   34   33   36   42   53   63   73   74   70   60   50   40
20   34   34   36   43   53   64   73   74   70   60   50   39

21   34   34   36   43   53   64   73   74   70   60   49   39
22   34   34   36   44   54   64   73   74   69   59   49   39
23   34   34   36   44   54   64   73   74   69   59   48   38
24   34   34   36   44   54   65   73   74   69   59   48   38
25   34   34   36   44   55   65   74   74   69   59   48   38

26   34   34   37   45   55   65   74   74   68   58   48   37
27   34   34   37   45   55   65   74   74   68   58   47   37
28   34   34   37   46   55   66   74   73   67   58   47   37
29   34   34   37   46   56   66   74   73   67   58   47   37
30   34        37   47   56   67   74   73   67   57   46   37
31   34        38        57        74   73        57        37

MON  34   33   35   42   52   62   71   74   71   61   51   41


ALTHOUGH WEATHER DATA BUOYS HAVE BEEN AVAILABLE IN RECENT YEARS TO 
SAMPLE AND REPORT THE WATER TEMPERATURE CLOSE TO THE SURFACE OF THE 
LAKE...THE DATA FROM THE CLEVELAND WATER DEPARTMENT'S CRIB 40 FEET 
DOWN IN THE LAKE ABOUT 3 MILES OFFSHORE HAS BEEN USED FOR THE 
OFFICIAL DATA SINCE THE BEGINNING OF THE CENTURY.

THE RECORD HIGH WATER TEMPERATURE FROM THE CRIB IS 79 DEGREES WHICH 
WAS SET IN AUGUST DURING THE VERY HOT SUMMER OF 1988. THAT READING 
WAS REPORTED EACH DAY FROM THE AUGUST 16TH THROUGH THE 28TH. 

Note: 
THE RECORD WATER TEMPERATURE WAS TIED ON JULY 21ST 1998 WHEN THE TEMPERATURE 
REACHED 79 DEGREES.