OLD MISSION 3 SSW DIVISION: 3 STATION #6158 DATE OF RUN COUNTY: GRAND TRAVERSE PERIOD ANALYSIS FOR 1981 -2000 ( 20 YEARS) 11/10/04 SNOWFALL (INCHES) YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL 1981 26.9 39.0 12.8 .0 .0 .0 .0 .0 .0 2.1 5.5 37.1 123.4 1982 72.5 13.3 15.7 .0 .0 .0 .0 .0 .0 .0 9.4 11.9 122.8 1983 25.6 15.1 12.2 2.0 .0 .0 .0 .0 .0 .0 4.4 56.8 116.1 1984 36.0 7.0 10.8 .0 .0 .0 .0 .0 .0 .0 2.7 21.0 77.5 1985 67.7 52.9 13.9 12.1 .0 .0 .0 .0 .0 .0 15.1 69.1 230.8 1986 38.5 20.8 18.6 .0 .0 .0 .0 .0 .0 .0 8.6 24.8 111.3 1987 27.8 8.4 5.5 4.9 .0 .0 .0 .0 .0 .0 2.8 22.4 71.8 1988 40.7 33.0 3.1 2.9 .0 .0 .0 .0 .0 .0 8.8 34.9 123.4 1989 33.8 41.3 29.6 .0 .0 .0 .0 .0 .0 .0 26.9 65.1 196.7 1990 19.9 19.5 .9 1.1 .0 .0 .0 .0 .0 .0 .0 .0 41.4 1991 26.7 14.4 .0 .9 .0 .0 .0 .0 .0 .0 7.5 31.8 81.3 1992 24.7 28.4 11.9 4.7 .0 .0 .0 .0 .0 .0 9.7 32.2 111.6 1993 28.8 20.4 8.1 7.0 .0 .0 .0 .0 .0 .0 .5 36.6 101.4 1994 12.4 23.3 12.2 4.6 .0 .0 .0 .0 .0 .0 5.0 2.2 59.7 1995 38.5 39.8 15.8 .7 .0 .0 .0 .0 .0 .0 28.2 26.8 149.8 1996 30.8 22.9 8.4 7.7 .0 .0 .0 .0 .0 .0 22.6 44.3 136.7 1997 71.9 16.6 19.3 .1 .0 .0 .0 .0 .0 .0 1.8 4.8 114.5 1998 19.9 .6 25.9 .0 .0 .0 .0 .0 .0 .0 .9 7.2 54.5 1999 39.1 10.2 4.5 .0 .0 .0 .0 .0 .0 .0 .0 11.1 64.9 2000 27.7 3.0 .0 .0 .0 .0 .0 .0 .0 .0 22.5 34.7 87.9 NON-ZERO 20 20 18 12 0 0 0 0 0 1 18 19 20 ZEROES 0 0 2 8 20 20 20 20 20 19 2 1 0 PROB OF ZERO .00 .00 .10 .40 1.00 1.00 1.00 1.00 1.00 .95 .10 .05 .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 35.50 21.49 12.73 4.06 .00 .00 .00 .00 .00 2.10 10.16 30.25 108.88 VARIANCE 282.39 193.74 56.07 12.66 .00 .00 .00 .00 .00 .00 81.74 367.73 2169.35 STND DEV 16.80 13.92 7.49 3.56 .00 .00 .00 .00 .00 .00 9.04 19.18 46.58 SKEW 1.23 .57 .57 .90 .00 .00 .00 .00 .00 .00 .90 .47 .96 KURTOSIS 3.58 2.60 2.98 3.10 .00 .00 .00 .00 .00 .00 2.44 2.55 3.85 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 SNOWFALL (INCHES) 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 35.50 21.49 12.73 4.06 .00 .00 .00 .00 .00 2.10 10.16 30.25 108.88 VARIANCE 282.39 193.74 56.07 12.66 .00 .00 .00 .00 .00 .00 81.74 367.73 2169.35 STND DEV 16.80 13.92 7.49 3.56 .00 .00 .00 .00 .00 .00 9.04 19.18 46.58 SKEW 1.23 .57 .57 .90 .00 .00 .00 .00 .00 .00 .90 .47 .96 KURTOSIS 3.58 2.60 2.98 3.10 .00 .00 .00 .00 .00 .00 2.44 2.55 3.85 GAMMA 5.491 1.707 2.267 1.048 .000 .000 .000 .000 .000 999.000 1.174 1.900 6.083 BETA 6.465 12.591 5.617 3.874 .000 .000 .000 .000 .000 999.000 8.655 15.920 17.897 PROB OF ZERO .00 .00 .10 .40 1.00 1.00 1.00 1.00 1.00 .95 .10 .05 .00 LEVELS PROBABILITY PERCENTILE VALUES 01 9.8 1.1 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 32.7 05 14.7 3.1 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 47.8 10 18.0 4.9 .0 .0 .0 .0 .0 .0 .0 .0 .0 5.2 57.5 20 22.5 8.0 4.0 .0 .0 .0 .0 .0 .0 .0 1.6 10.3 71.1 25 24.5 9.4 5.1 .0 .0 .0 .0 .0 .0 .0 2.3 12.5 76.8 30 26.3 10.9 6.0 .0 .0 .0 .0 .0 .0 .0 3.0 14.7 82.2 40 29.8 14.0 7.9 .0 .0 .0 .0 .0 .0 .0 4.6 19.1 92.5 50 33.4 17.5 9.9 .8 .0 .0 .0 .0 .0 .0 6.4 23.8 103.0 60 37.2 21.4 12.0 1.7 .0 .0 .0 .0 .0 .0 8.6 29.2 114.2 70 41.6 26.2 14.6 2.9 .0 .0 .0 .0 .0 .0 11.3 35.7 127.0 75 44.2 29.2 16.1 3.6 .0 .0 .0 .0 .0 .0 13.1 39.7 134.5 80 47.2 32.7 17.9 4.5 .0 .0 .0 .0 .0 .0 15.1 44.3 143.2 90 55.7 43.3 23.3 7.2 .0 .0 .0 .0 .0 .0 21.5 58.2 167.9 95 63.5 53.5 28.3 10.0 .0 .0 .0 .0 .0 .0 27.8 71.3 190.2 99 79.7 75.7 39.3 16.3 .0 .0 .0 .0 .0 1.7 42.3 98.8 236.8