OLD MISSION 3 SSW DIVISION: 3 STATION #6158 DATE OF RUN COUNTY: GRAND TRAVERSE PERIOD ANALYSIS FOR 1981 -2000 ( 20 YEARS) 11/10/04 EXTREME PRECIPITATION YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL 1981 .16 .98 .37 1.47 .56 .81 1.19 1.63 .82 .92 .90 .61 5.42 1982 .52 .13 .58 .81 .10 .54 1.03 .57 .82 .74 1.36 .72 3.89 1983 .40 .49 1.10 .72 1.42 .57 .94 2.60 1.44 1.43 .29 .61 6.61 1984 .20 .40 .56 .39 1.05 2.03 1.70 .87 1.47 1.45 .87 .75 4.86 1985 .45 .63 .60 .58 1.15 .37 .93 1.29 1.06 .57 .78 .72 5.30 1986 .15 .12 .34 .87 .92 3.00 .97 .72 1.81 1.68 .47 .15 9.73 1987 .44 .04 .24 .39 .33 .72 .50 3.10 1.85 .48 .55 .65 7.34 1988 .52 .09 .49 .85 .21 1.10 1.00 .90 .96 1.90 1.50 .28 5.99 1989 .20 .09 .83 .40 1.65 1.37 .80 .97 .59 1.65 .51 .26 5.00 1990 .90 .12 1.35 .30 1.35 1.55 .43 1.11 .75 .61 .76 .37 5.77 1991 .15 .12 1.62 .73 .55 .74 1.55 .47 2.32 4.70 .47 .53 8.87 1992 .27 .27 .56 .80 .31 1.76 .60 .50 1.59 .60 1.19 .31 4.97 1993 .26 .26 .08 .93 .84 2.32 1.56 2.11 1.28 .38 .68 .50 5.79 1994 1.07 .70 .26 1.66 .48 .60 1.16 .98 1.34 .75 1.10 .20 4.51 1995 .58 .11 .32 .73 .32 .79 .35 2.11 .66 1.15 .58 .47 6.84 1996 .27 .29 .40 .44 .56 1.14 1.19 .40 1.55 .61 .35 .37 4.54 1997 1.11 .38 .35 .09 1.56 .48 1.03 1.40 .32 .74 .48 .27 4.03 1998 .26 .14 1.45 .86 1.18 1.02 .60 1.76 .90 1.13 1.01 .97 5.91 1999 .70 .12 .03 .86 .60 1.01 3.40 .48 .73 .17 .55 .39 7.11 2000 .30 .16 .26 .41 .62 .63 .70 1.20 2.86 .50 .76 .35 6.07 NON-ZERO 20 20 20 20 20 20 20 20 20 20 20 20 20 ZEROES 0 0 0 0 0 0 0 0 0 0 0 0 0 PROB OF ZERO .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 NOTE: STATISTICS ARE COMPUTED ON THE NON-ZERO VALUES NUMBER YEARS 20 20 20 20 20 20 20 20 20 20 20 20 20 MEAN .445 .282 .590 .714 .788 1.128 1.082 1.258 1.256 1.108 .758 .474 5.927 VARIANCE .087 .062 .205 .141 .222 .480 .436 .570 .394 .949 .112 .047 2.270 STND DEV .296 .249 .453 .375 .471 .693 .661 .755 .628 .974 .335 .217 1.507 SKEW 1.084 1.432 1.063 .856 .390 1.266 2.200 .930 .860 2.623 .704 .501 .978 KURTOSIS 3.099 4.279 3.028 3.806 1.930 3.880 8.690 3.051 3.377 10.388 2.613 2.480 3.568 NOTE: A MISSING OR INCOMPLETE VALUE, INDICATED BY THE FIELD BEING FILLED WITH 9s, IS NOT INCLUDED IN THE ANALYSIS. OLD MISSION 3 SSW DIVISION: 3 STATION #6158 DATE OF RUN COUNTY: GRAND TRAVERSE PERIOD ANALYSIS FOR 1981 -2000 ( 20 YEARS) 11/10/04 EXTREME PRECIPITATION STATISTICS PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL NUMBER YEARS 20 20 20 20 20 20 20 20 20 20 20 20 20 MEAN .445 .282 .590 .714 .788 1.128 1.082 1.258 1.256 1.108 .758 .474 5.927 VARIANCE .087 .062 .205 .141 .222 .480 .436 .570 .394 .949 .112 .047 2.270 STND DEV .296 .249 .453 .375 .471 .693 .661 .755 .628 .974 .335 .217 1.507 SKEW 1.084 1.432 1.063 .856 .390 1.266 2.200 .930 .860 2.623 .704 .501 .978 KURTOSIS 3.099 4.279 3.028 3.806 1.930 3.880 8.690 3.051 3.377 10.388 2.613 2.480 3.568 GAMMA 2.741 1.668 1.656 3.363 2.479 3.351 3.826 3.125 4.265 2.134 5.598 4.848 17.835 BETA .163 .169 .356 .212 .318 .336 .283 .403 .294 .519 .135 .098 .332 PROB OF ZERO .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 LEVELS PROBABILITY PERCENTILE VALUES 01 .06 .01 .03 .12 .09 .19 .21 .19 .28 .09 .21 .12 3.16 05 .11 .04 .08 .21 .18 .34 .36 .36 .45 .21 .32 .18 3.82 10 .15 .06 .13 .28 .25 .44 .46 .47 .57 .31 .39 .23 4.21 20 .22 .10 .21 .38 .37 .60 .61 .66 .74 .48 .48 .29 4.72 25 .25 .12 .25 .43 .42 .68 .68 .74 .81 .55 .52 .32 4.93 30 .28 .14 .30 .47 .47 .74 .74 .81 .88 .63 .56 .34 5.12 40 .33 .18 .38 .56 .57 .88 .86 .97 1.02 .78 .64 .39 5.47 50 .39 .23 .48 .65 .68 1.02 .99 1.13 1.16 .94 .71 .44 5.81 60 .46 .28 .59 .74 .81 1.17 1.13 1.30 1.31 1.13 .79 .50 6.17 70 .54 .34 .72 .86 .96 1.35 1.29 1.51 1.49 1.35 .89 .56 6.57 75 .59 .38 .80 .93 1.04 1.46 1.38 1.64 1.60 1.49 .94 .60 6.80 80 .64 .43 .90 1.01 1.15 1.59 1.50 1.79 1.72 1.65 1.01 .64 7.06 90 .80 .57 1.20 1.24 1.46 1.95 1.82 2.21 2.07 2.12 1.19 .76 7.77 95 .96 .71 1.48 1.45 1.75 2.29 2.11 2.61 2.39 2.58 1.35 .87 8.39 99 1.28 1.01 2.11 1.91 2.38 3.02 2.71 3.47 3.08 3.58 1.69 1.09 9.58