Great Lakes Average Ice Concentration ------------------------------------------------ Ice Concentration (%) Year Day Sup. Mich. Huron Erie Ont. ------------------------------------------------ 2009 342 0.3409 0.0000 0.1502 0.0000 0.0000 2009 343 0.2701 0.0424 0.1546 0.0000 0.0000 2009 349 1.5478 1.2475 2.0932 1.6402 0.8994 2009 351 2.7926 2.0300 5.4248 6.4586 1.0973 2009 356 2.5878 2.8478 5.3462 5.6672 1.1419 2009 358 2.3008 2.5725 6.3211 4.7086 1.5303 2009 363 1.9267 2.8621 4.4138 3.1132 1.3866 2009 365 2.9997 4.8383 8.9323 10.7085 1.9904 2010 05 4.4538 13.1464 16.9971 23.7456 4.7787 2010 06 4.2835 16.7986 17.1893 21.4694 3.4927 2010 07 4.6279 16.8107 17.3157 28.2923 3.8871 2010 09 3.6044 14.1376 16.4906 30.9389 4.7309 2010 10 2.5425 14.8412 17.9665 27.8063 4.5096 2010 12 6.1879 19.0210 22.5601 54.8841 0.0000 2010 13 6.5902 14.7648 23.4625 53.6771 0.3315 2010 14 6.8906 15.2355 20.9664 47.6549 9.0955 2010 19 5.2124 11.4272 14.9631 22.8849 6.1198 2010 21 8.6102 13.7978 20.4369 22.7808 5.0510 2010 26 4.1742 13.3433 14.7828 19.3834 3.4495 2010 28 6.5654 16.1053 18.2004 40.9834 4.3526 2010 33 8.5783 17.5845 21.9234 81.0462 9.8003 2010 35 14.1649 23.0321 32.3198 88.6178 13.4449 2010 40 13.1989 25.1388 36.5763 93.0816 16.3526 2010 47 14.3389 21.7731 36.9768 91.8660 11.2388 2010 49 10.1734 14.2389 38.7624 83.4104 8.4380 2010 54 28.9765 14.3411 24.3828 61.9579 8.3921 2010 56 11.1129 13.9836 24.2382 63.0167 8.9688 2010 61 10.1187 10.8532 19.2101 50.5140 6.5923 2010 63 16.7097 10.6334 18.4608 50.4892 5.2084 2010 68 9.2227 10.4691 19.2083 51.4934 3.8857 2010 69 8.0293 10.6862 19.4115 52.8189 3.8347 2010 70 7.5552 10.3102 19.1171 53.8888 3.9458 2010 75 6.2705 7.4211 13.8350 17.4485 1.6203 2010 76 5.8486 7.0233 13.4601 19.5126 2.4077 2010 77 5.8675 7.3201 13.8288 19.3148 2.3081 2010 82 4.7730 5.0336 7.7215 5.4063 0.5037 2010 83 4.2724 4.3296 7.2975 4.6493 0.8994 2010 84 3.5938 4.2183 6.5116 5.5384 0.7066 2010 89 3.4741 2.0807 5.0409 4.1074 0.4894 2010 96 2.1198 0.0160 1.3857 0.0000 0.0000 2010 103 0.3463 0.0000 0.0000 0.0000 0.0000