Annual precipitation, 1900-1986, Entire Great Lakes
#Annual precipitation in inches 
#SOURCE:  Great Lake¢ Wate• Levelsþ U.Sþ Deptþ o‘ Commerceþ  NOOµ þ
#- NOSþ Rockvilleþ MD¯ an„ U.Sþ Lak† Surveyþ Detroitþ MI--U.Sþ þ
#Armu Corp
  31.69
  29.77 
  31.70
  33.06
  31.31
  32.72
  31.18
  29.90
  29.17
  31.48
  28.11
  32.61
  31.31
  30.96
  28.40
  30.68
  33.67
  28.65
  30.62
  30.21
  28.79
  30.92
  30.92
  28.13
  30.51
  27.63
  34.80
  32.10
  33.86
  32.33
  25.69
  30.60
  32.85 
  30.31
  27.71
  30.34
  29.14
  33.41
  33.51
  29.90
  32.69
  32.34
  35.01
  33.05
  31.15
  36.36
  29.83
  33.70
  29.81
  32.41
  35.90
  37.45
  30.39
  31.15
  35.75
  31.14
  30.06
  32.40
  28.44
  36.38
  31.73
  31.27
  28.51
  26.01
  31.27
  35.57
  30.85
  33.35
  35.82
  31.78
  34.25
  31.43
  35.97
  33.87
  28.94
  34.62
  31.06
  38.84
  32.25
  35.86
  32.93
  32.69
  34.39
  33.97
  32.15
  40.16
  36.32