SAINT IGNACE DIVISION: 2 STATION #7274 DATE OF RUN COUNTY: MACKINAC PERIOD ANALYSIS FOR 1981 -2000 ( 20 SEASONS) 11/10/04 MONTHLY DEGREE-DAYS BASE 40 SEASON MAR APR MAY JUN JUL AUG SEP OCT SEASON 1981 15 69 286 553 825 831 466 120 3165 1982 0 39 373 490 821 676 516 318 3233 1983 2 47 169 609 964 937 587 205 3520 1984 0 93 260 613 777 889 485 310 3427 1985 0 82 372 521 763 812 614 247 3411 1986 10 116 425 537 812 735 470 225 3330 1987 14 185 403 720 912 863 609 120 3826 1988 3 46 446 714 893 853 509 143 3607 1989 9 32 349 554 901 780 573 231 3429 1990 12 163 275 580 819 811 539 202 3401 1991 6 106 415 753 844 883 481 207 3695 1992 0 32 341 538 631 703 489 199 2933 1993 7 19 260 515 830 893 457 157 3138 1994 0 42 320 656 782 709 605 324 3438 1995 19 11 320 722 824 916 505 288 3605 1996 1 11 242 566 707 830 626 239 3222 1997 3 57 175 659 837 757 554 277 3319 1998 22 121 531 653 893 914 668 327 4129 1999 10 123 457 730 950 826 660 220 3976 2000 28 112 387 630 815 825 599 342 3738 NON-ZERO 15 20 20 20 20 20 20 20 20 ZEROES 5 0 0 0 0 0 0 0 0 PROB OF ZERO .25 .00 .00 .00 .00 .00 .00 .00 .00 NOTE: STATISTICS ARE COMPUTED ON THE NON-ZERO VALUES NUMBER SEASON 20 20 20 20 20 20 20 20 20 MEAN 10.7 75.3 340.3 615.7 830.0 822.2 550.6 235.1 3477.1 VARIANCE 61.1 2528.5 8917.8 6711.9 6181.5 5716.5 4552.9 4762.6 86446.1 STND DEV 7.8 50.3 94.4 81.9 78.6 75.6 67.5 69.0 294.0 SKEW .7 .6 -.1 .2 -.5 -.4 .2 -.1 .4 KURTOSIS 2.7 2.4 2.5 1.7 3.6 2.2 1.7 2.0 2.8 NOTE: A MISSING OR INCOMPLETE VALUE, INDICATED BY THE FIELD BEING FILLED WITH 9s, IS NOT INCLUDED IN THE ANALYSIS. SAINT IGNACE DIVISION: 2 STATION #7274 DATE OF RUN COUNTY: MACKINAC PERIOD ANALYSIS FOR 1981 -2000 ( 20 SEASONS) 11/10/04 MONTHLY DEGREE-DAYS BASE 40 STATISTICS PARAMETER MAR APR MAY JUN JUL AUG SEP OCT SEASON NUMBER SEASON 20 20 20 20 20 20 20 20 20 MEAN 10.7 75.3 340.3 615.7 830.0 822.2 550.6 235.1 3477.1 VARIANCE 61.1 2528.5 8917.8 6711.9 6181.5 5716.5 4552.9 4762.6 86446.1 STND DEV 7.8 50.3 94.4 81.9 78.6 75.6 67.5 69.0 294.0 SKEW .7 .6 -.1 .2 -.5 -.4 .2 -.1 .4 KURTOSIS 2.7 2.4 2.5 1.7 3.6 2.2 1.7 2.0 2.8 GAMMA 1.656 2.004 12.401 59.824 111.903 120.644 70.540 11.088 149.562 BETA 6.481 37.567 27.441 10.291 999.000 999.000 7.806 21.199 999.000 PROB OF ZERO .25 .00 .00 .00 .00 .00 .00 .00 .00 LEVELS PROBABILITY PERCENTILE VALUES 01 0 6 156 446 647 646 410 102 2793 05 0 13 198 491 701 698 447 132 2993 10 0 20 224 516 729 725 468 150 3100 20 0 31 257 548 764 759 495 175 3230 25 0 36 271 560 777 771 505 184 3279 30 2 41 284 571 789 783 514 194 3323 40 4 52 308 592 810 803 532 211 3403 50 6 63 331 612 830 822 548 228 3477 60 8 76 356 632 850 841 565 246 3552 70 11 92 384 655 871 862 583 266 3631 75 12 101 400 667 883 873 593 278 3675 80 14 113 418 681 896 886 605 291 3725 90 20 146 468 719 931 919 636 329 3854 95 25 178 513 751 959 947 663 362 3961 99 36 250 604 811 1013 998 714 430 4161