Lake Michigan-Huron Net Basin Supply (expressed as millimeters over lake surface),,,,,,,,,,,,,
Component Method using overlake precipitation depth  (precip + runoff - evaporation),,,,,,,,,,,,,
,,,,,,,,,,,,,Annual
Year,JAN,FEB,MAR,APR,MAY,JUN,JUL,AUG,SEP,OCT,NOV,DEC,Totals
1950,76.66,61.25,126.94,214.5,136.32,137.24,127.57,68.84,52.63,26.44,-1.65,9.73,1036.47
1951,63.08,83.09,138.13,285.71,138.94,116.05,153.38,87.08,47.83,127.02,50.23,60.12,1350.66
1952,99.41,54.77,119.77,217.4,147.31,111.36,170.4,89.68,9.66,-89.15,35.41,21.7,987.7
1953,28.68,69.65,134.17,165.18,166.92,125.91,94.93,56.76,7.02,-8,-17.78,-22.38,801.05
1954,-28.01,77.28,94.43,211.15,131.39,201.44,83.63,34.79,93.67,187.83,26.19,-4.4,1109.41
1955,12.22,41.72,88.47,186.38,119.84,85.37,65.09,32.2,-37.65,53.38,-31.56,-47.47,568
1956,-13.12,26.69,77.55,161.66,205.57,118.08,131.42,106.28,11.66,-0.26,-26.05,-9.89,789.59
1957,7.27,42.62,73.33,154.44,158.1,149.26,139.68,29.47,45.72,34.93,45.37,39.24,919.43
1958,16.98,6.37,59.37,92.58,63.73,90.2,94.73,40.1,57.32,12.42,-1.96,-56.65,475.2
1959,10.7,59.58,109.83,230.8,170.65,77.36,106.06,145.94,59.41,86.96,25.45,55.57,1138.31
1960,68.8,57.42,57.31,267.33,315.5,169.96,130.64,86.58,52.7,17.55,22.22,-58.7,1187.31
1961,-11.71,45.69,113.74,127.96,105.29,124.52,109.32,71.15,128.81,36.59,34.15,-1.32,884.19
1962,33.52,64.51,100.09,134.13,155.95,102.8,78.82,70.31,31.31,37.69,-20.54,-14.31,774.26
1963,6.32,24.93,112.22,128.07,144.15,87.74,100.62,58.74,31.4,7.22,6.91,-39.07,669.26
1964,20.3,-4.01,51.09,134.5,139.87,65.13,94.91,68.59,56.18,-15.74,24,-7.53,627.29
1965,44.66,76.32,88.56,198.41,165.18,87.68,71.76,101.56,162.56,57,64.05,92.36,1210.11
1966,32.28,77.01,143.68,138.43,106.23,94.28,52.07,58.83,-10.66,0.35,84.23,71.67,848.39
1967,71.37,49.12,92.82,259.25,135.47,210.08,87.52,72.18,16.69,74.88,66.39,66.18,1201.95
1968,44.85,77.33,80.91,155.62,132.44,162.52,100.83,89.24,97.23,23.3,21.89,31.66,1017.8
1969,78.58,40.67,70.16,203.12,175.89,211.51,132.21,26.65,6.23,81.01,43.33,-13.8,1055.55
1970,24.28,15.1,74.54,159.39,166.26,148.84,163.41,37.87,130.04,73.93,33.19,31.95,1058.8
1971,40.66,94.11,126.63,174.91,149.49,120.15,100.45,70.98,44.24,30.88,-3.57,77.36,1026.29
1972,10.85,46.27,106.25,172.5,171.87,120.94,129.26,149.4,97.33,33.69,44.8,82.13,1165.27
1973,93.38,57.04,197.86,182.74,240.24,163.58,116.44,109.17,33.57,70.84,24.48,25.34,1314.68
1974,90.49,61.83,128.62,211.1,195.22,173.22,108.76,82.75,37.01,31.4,49.22,16.8,1186.44
1975,71.75,69.09,98.42,172.27,175.71,160.34,105.17,134.62,59.12,3.15,60.78,27.52,1137.93
1976,22.1,106.62,245.51,196.45,189.31,112.43,86.82,26.9,6.24,-12.71,-35.93,-33.45,910.29
1977,30.16,104.16,186.82,160.47,81.75,90.8,114.79,131.25,127.02,63.34,87.6,51.05,1229.2
1978,41.93,32.18,71.45,176.29,176.51,118.68,115.34,114.14,170.31,59.34,19.42,15.16,1110.76
1979,67.38,44.79,206.06,250.44,195.32,149.53,90.98,127.43,22.43,66.67,73.66,50.07,1344.76
1980,41.97,28.96,73.81,202.15,119.35,148.66,113.95,118.75,88.3,18.87,2.92,13.35,971.04
1981,14.64,114.42,83.4,200.2,128.74,137.71,77.45,106.81,77.96,79.47,24.33,-5.49,1039.66
1982,25.99,31.88,139.73,184.09,134.95,114.76,115.09,82.05,85.67,62.3,96.08,123.4,1195.98
1983,51.75,64.58,115.03,167.8,261.19,125.57,76.12,74.94,62.28,66.28,20.12,1.9,1087.56
1984,23.02,103.93,100.02,161.21,154.23,149.95,103.91,99.75,81.69,86.87,71.54,54.12,1190.24
1985,54.09,106.85,195.25,231.9,157.29,88.77,95.93,112.22,93.83,85.55,122.67,17.12,1361.47
1986,32.97,46.45,144.04,158.45,127.99,134.8,136.05,63.87,246.62,125.08,-29.8,-0.07,1186.43
1987,13.66,16.49,73.19,109.65,86.29,83.55,61.32,92.25,50.14,-7.5,16.88,40.95,636.86
1988,5.97,42.76,94.33,180.14,92.32,48.95,66.73,69.3,47.11,51.69,143.27,-0.31,842.25
1989,33.13,10.78,100.37,127.5,137.07,158.79,69.38,70.47,13.12,11.68,7.36,-9.22,730.43
1990,87.81,52.66,145.95,113.91,195.42,187.99,110.5,94.27,63.01,101.94,97.98,45.44,1296.87
1991,29.64,52.64,175.54,241.07,169.21,78.47,112.88,51.08,10.59,106.47,35.76,47.3,1110.66
1992,47.51,52.23,97.67,168.9,98.29,75.17,117.08,74.03,104.79,37.19,149.02,36.39,1058.29
1993,82.54,15.53,69.6,226.01,157.01,208.55,131.08,109.01,61.16,43.94,26.09,-2.08,1128.44
1994,27.48,70.64,95.45,141.54,119.94,129.4,154.14,124.21,72,26.61,53.18,13.88,1028.46
1995,40.92,5.7,96.99,130.85,158.17,104.13,101.94,110.11,3.24,62.92,37.55,13.86,866.37
1996,62.67,70.21,69.42,184.62,208.4,215.45,152.54,88.65,111.97,68.38,31.63,75.92,1339.86
1997,102.15,128.31,126.58,156.34,200.31,130.68,101.96,99.37,57.55,7.46,4.29,-7.56,1107.44
1998,71.77,63.36,158.55,174.69,100.98,99.95,37.24,67.42,28.14,14.01,3.32,-25.54,793.89
1999,38.93,55.28,28.21,138.19,117.32,120.22,131.17,27.45,24,-3.84,-6.16,1.75,672.51
2000,-14.25,43.72,85.77,101.53,184.03,142.81,100.67,78.78,64.81,9.41,20.08,-18.03,799.32
2001,22.12,86.38,60.68,186.38,184.78,139.08,39.86,89.9,107.26,135.49,90.55,49.19,1191.66
2002,6.58,51.67,117.33,208.39,188.55,158.14,91.12,75.88,15.66,6.02,-19.95,-45.71,853.67
2003,-16.72,33.98,97.9,154.05,179.99,119.46,113.75,68.82,34.55,41.61,137.02,40.92,1005.33
2004,14.6,46.43,180.68,147.19,289.66,152.54,106.09,50.47,5.5,36.34,32.62,29.35,1091.46
2005,72.67,88.89,77.73,142.82,92.59,99.3,75.08,65.16,50.72,-0.42,60.89,13.36,838.79
2006,101.7,65.88,121.66,176.28,175.63,79.91,106.83,58.96,61.05,84.85,71.62,118.07,1222.44
2007,47.96,11.43,146.71,153.53,102.34,100.67,67.9,77.03,26.3,75.53,-28.24,31.95,813.12
2008,133.63,121.08,105.68,253.69,169.01,208.21,131.71,63.74,115.33,19.4,49.88,126.59,1497.97
2009,66.92,132.06,155.95,223.72,187.7,157.55,91.38,122.29,40.42,127.17,56.95,55.76,1417.87
2010,28.18,44.18,77.07,101.35,125.68,206.28,148.57,75.42,103.9,21.27,22.98,19.53,974.41
2011,45.77,57.23,122.82,257.89,208.88,160.56,98,51.08,52.08,67.3,50.57,48.83,1221
2012,51.62,46.13,157.39,81.37,101.84,85.44,40.78,19.8,-6.68,75.75,-11.9,33.9,675.44
2013,54.93,83.53,86.12,282.02,209.52,143.08,87.74,70.61,24.26,83.55,88.16,8.88,1222.4
2014,36.87,38.94,62.72,193.81,184.54,151.82,107.47,102.53,95.87,118.72,53.77,22.9,1169.96
2015,13.91,18.03,50.81,140.38,154.24,138.5,65.32,58.12,50.58,0.13,60.23,103.83,854.06