MARQUETTE CITY DIVISION: 1 STATION #5178 DATE OF RUN COUNTY: MARQUETTE PERIOD ANALYSIS FOR 1971 -2000 ( 30 YEARS) 11/09/04 EXTREME SNOWFALL YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL 1971 12.6 8.0 4.8 2.0 3.0 .0 .0 .0 .0 .0 2.3 5.8 52.6 1972 7.8 3.2 8.0 4.7 .0 .0 .0 .0 .0 2.2 3.4 6.5 37.7 1973 3.0 3.4 .3 .7 1.9 .0 .0 .0 .0 .0 5.0 5.9 27.9 1974 4.5 5.0 1.2 5.3 2.3 .0 .0 .0 4.4 2.2 2.8 3.9 18.2 1975 9.9 9.2 14.3 .1 .0 .0 .0 .0 .0 .1 4.2 3.4 34.7 1976 5.6 4.8 14.9 1.1 3.3 .0 .0 .0 .0 6.3 4.8 6.6 45.6 1977 3.3 4.4 7.7 5.4 .0 .0 .0 .0 .0 .0 3.5 7.2 38.3 1978 10.5 5.7 3.3 .3 .0 .0 .0 .0 .0 .4 3.2 6.8 43.3 1979 9.1 3.8 9.2 8.3 .0 .0 .0 .0 .0 .3 5.4 2.0 38.3 1980 4.6 2.9 2.2 2.8 .0 .0 .0 .0 .0 .6 1.5 4.2 30.3 1981 6.8 8.1 2.9 .7 .0 .0 .0 .0 .0 4.4 4.5 8.4 44.8 1982 5.8 1.8 2.6 7.4 .0 .0 .0 .0 .0 4.4 2.4 2.7 48.4 1983 4.8 10.8 10.6 4.8 .0 .0 .0 .0 .0 .0 8.2 9.7 37.4 1984 4.8 6.5 11.2 .6 .0 .0 .0 .0 .0 .0 4.4 5.4 37.5 1985 4.8 10.4 10.8 2.9 .0 .0 .0 .0 .0 .0 5.5 11.8 42.8 1986 6.1 6.4 12.4 .6 .0 .0 .0 .0 .0 .0 2.4 3.4 39.2 1987 3.8 5.4 5.9 5.8 .0 .0 .0 .0 .0 .0 3.8 4.9 21.2 1988 12.4 4.4 7.4 .7 .0 .0 .0 .0 .0 1.4 1.4 6.6 35.9 1989 4.3 3.4 8.6 .7 .0 .0 .0 .0 .2 2.1 6.1 4.8 38.7 1990 4.4 10.8 3.6 4.8 10.6 .0 .0 .0 .0 .0 .8 3.4 25.3 1991 2.2 3.4 5.7 3.8 .0 .0 .0 .0 .0 .0 8.6 4.4 22.7 1992 3.6 5.9 8.7 4.8 .0 .0 .0 .0 .0 1.4 4.8 4.8 33.9 1993 6.2 1.8 2.9 10.2 .0 .0 .0 .0 1.1 2.6 3.4 2.9 27.1 1994 6.6 2.2 8.8 1.8 .0 .0 .0 .0 .0 .0 3.8 .9 31.1 1995 4.9 3.9 7.8 1.4 .0 .0 .0 .0 .0 .0 6.2 5.9 37.1 1996 13.6 3.6 9.0 9.7 .9 .0 .0 .0 .0 .5 7.0 14.3 43.0 1997 10.1 3.8 17.3 3.2 2.9 .0 .0 .0 .0 1.7 4.2 3.5 64.5 1998 8.9 4.7 3.9 5.4 .0 .0 .0 .0 .0 .0 2.0 8.0 28.6 1999 12.7 5.2 2.2 1.2 .0 .0 .0 .0 .0 .0 1.3 3.8 41.0 2000 6.7 7.5 .0 1.6 .0 .0 .0 .0 .0 .0 5.9 8.6 56.9 NON-ZERO 30 30 29 30 7 0 0 0 3 15 30 30 30 ZEROES 0 0 1 0 23 30 30 30 27 15 0 0 0 PROB OF ZERO .00 .00 .03 .00 .77 1.00 1.00 1.00 .90 .50 .00 .00 .00 NOTE: STATISTICS ARE COMPUTED ON THE NON-ZERO VALUES NUMBER YEARS 30 30 30 30 30 30 30 30 30 30 30 30 30 MEAN 6.81 5.35 7.18 3.43 3.56 .00 .00 .00 1.90 2.04 4.09 5.68 37.47 VARIANCE 10.31 6.61 19.11 8.24 10.30 .00 .00 .00 4.89 3.18 3.90 8.32 106.31 STND DEV 3.21 2.57 4.37 2.87 3.21 .00 .00 .00 2.21 1.78 1.97 2.89 10.31 SKEW .72 .78 .43 .80 1.76 .00 .00 .00 .58 1.04 .42 1.06 .43 KURTOSIS 2.37 2.71 2.47 2.74 4.62 .00 .00 .00 1.50 3.27 2.70 4.28 3.35 NOTE: A MISSING OR INCOMPLETE VALUE, INDICATED BY THE FIELD BEING FILLED WITH 9s, IS NOT INCLUDED IN THE ANALYSIS. MARQUETTE CITY DIVISION: 1 STATION #5178 DATE OF RUN COUNTY: MARQUETTE PERIOD ANALYSIS FOR 1971 -2000 ( 30 YEARS) 11/09/04 EXTREME SNOWFALL STATISTICS PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL NUMBER YEARS 30 30 30 30 30 30 30 30 30 30 30 30 30 MEAN 6.81 5.35 7.18 3.43 3.56 .00 .00 .00 1.90 2.04 4.09 5.68 37.47 VARIANCE 10.31 6.61 19.11 8.24 10.30 .00 .00 .00 4.89 3.18 3.90 8.32 106.31 STND DEV 3.21 2.57 4.37 2.87 3.21 .00 .00 .00 2.21 1.78 1.97 2.89 10.31 SKEW .72 .78 .43 .80 1.76 .00 .00 .00 .58 1.04 .42 1.06 .43 KURTOSIS 2.37 2.71 2.47 2.74 4.62 .00 .00 .00 1.50 3.27 2.70 4.28 3.35 GAMMA 4.883 4.645 2.053 1.197 2.104 .000 .000 .000 999.000 1.205 3.858 3.981 13.349 BETA 1.395 1.151 3.497 2.862 1.691 .000 .000 .000 999.000 1.693 1.061 1.428 2.807 PROB OF ZERO .00 .00 .03 .00 .77 1.00 1.00 1.00 .90 .50 .00 .00 .00 LEVELS PROBABILITY PERCENTILE VALUES 01 1.7 1.3 .0 .1 .0 .0 .0 .0 .0 .0 .8 1.2 17.8 05 2.6 2.0 .7 .3 .0 .0 .0 .0 .0 .0 1.4 1.9 22.3 10 3.3 2.5 1.6 .5 .0 .0 .0 .0 .0 .0 1.7 2.5 25.1 20 4.2 3.2 2.7 .9 .0 .0 .0 .0 .0 .0 2.3 3.3 28.7 25 4.6 3.5 3.2 1.2 .0 .0 .0 .0 .0 .0 2.6 3.6 30.1 30 4.9 3.8 3.7 1.4 .0 .0 .0 .0 .0 .0 2.8 3.9 31.5 40 5.6 4.4 4.8 1.9 .0 .0 .0 .0 .0 .0 3.3 4.6 34.0 50 6.3 5.0 5.9 2.5 .0 .0 .0 .0 .0 .0 3.7 5.2 36.5 60 7.1 5.6 7.1 3.3 .0 .0 .0 .0 .0 .6 4.3 5.9 39.2 70 8.0 6.3 8.6 4.2 .0 .0 .0 .0 .0 1.2 4.9 6.7 42.1 75 8.6 6.7 9.5 4.7 .0 .0 .0 .0 .0 1.5 5.2 7.2 43.8 80 9.2 7.2 10.6 5.4 1.2 .0 .0 .0 .0 1.9 5.7 7.8 45.7 90 10.9 8.7 13.7 7.5 3.4 .0 .0 .0 .0 3.2 6.9 9.4 51.1 95 12.5 10.0 16.7 9.6 5.1 .0 .0 .0 .6 4.5 8.0 10.9 55.8 99 15.6 12.7 23.4 14.4 8.6 .0 .0 .0 3.4 7.3 10.2 13.8 65.3