Extreme Snowfall
BIG BAY 3 SE
DIVISION: 1 STATION #0770 DATE OF RUN
COUNTY: MARQUETTE PERIOD ANALYSIS FOR 1981 -1998 ( 16 YEARS) 11/17/04
EXTREME SNOWFALL
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1981 7.0 10.2 7.5 .0 .0 .0 .0 .0 .0 3.0 7.5 9.0 45.2
1982 12.0 3.0 4.0 8.5 .0 .0 .0 .0 .0 4.5 7.8 4.5 66.9
1983 8.5 15.0 17.0 4.0 .0 .0 .0 .0 .0 .0 10.0 10.1 54.6
1984 10.0 8.0 13.0 3.1 .0 .0 .0 .0 .0 .0 4.3 5.0 44.0
1986 4.5 5.0 8.3 .5 .0 .0 .0 .0 .0 .0 4.5 3.0 29.3
1987 5.0 3.0 5.0 4.0 .0 .0 .0 .0 .0 .0 6.0 6.4 28.0
1988 6.0 4.0 8.0 1.9 .0 .0 .0 .0 .0 .3 3.4 5.0 30.9
1989 8.0 6.0 10.0 2.8 .0 .0 .0 .0 .0 .0 4.0 10.0 40.8
1990 3.0 13.1 10.0 2.0 8.0 .0 .0 .0 .0 7.0 .7 3.0 30.3
1991 4.0 3.3 3.0 7.0 .0 .0 .0 .0 .0 1.0 8.0 7.0 37.6
1992 3.0 5.0 4.0 1.0 .0 .0 .0 .0 .0 1.5 5.4 12.0 38.7
1994 7.0 1.7 5.6 1.5 .0 .0 .0 .0 .0 .0 3.9 1.3 43.3
1995 8.5 6.9 5.5 2.4 .0 .0 .0 .0 .0 1.5 4.0 5.5 36.6
1996 8.8 5.7 10.5 6.5 3.7 .0 .0 .0 .0 .0 2.7 7.4 47.6
1997 9.0 3.4 12.5 1.7 .9 .0 .0 .0 .0 4.5 3.8 4.5 47.0
1998 4.4 4.8 2.4 .0 .0 .0 .0 .0 .0 .0 2.0 5.0 24.8
NON-ZERO 16 16 16 14 3 0 0 0 0 8 16 16 16
ZEROES 0 0 0 2 13 16 16 16 16 8 0 0 0
PROB OF ZERO .00 .00 .00 .13 .81 1.00 1.00 1.00 1.00 .50 .00 .00 .00
NOTE: STATISTICS ARE COMPUTED ON THE NON-ZERO VALUES
NUMBER YEARS 16 16 16 16 16 16 16 16 16 16 16 16 16
MEAN 6.79 6.13 7.89 3.35 4.20 .00 .00 .00 .00 2.91 4.88 6.17 40.35
VARIANCE 7.00 14.11 16.67 5.82 12.79 .00 .00 .00 .00 5.18 5.98 8.55 118.77
STND DEV 2.65 3.76 4.08 2.41 3.58 .00 .00 .00 .00 2.27 2.45 2.92 10.90
SKEW .15 1.17 .58 .93 .25 .00 .00 .00 .00 .59 .45 .40 .72
KURTOSIS 2.10 3.41 2.60 2.70 1.50 .00 .00 .00 .00 2.19 2.60 2.39 3.32
NOTE: A MISSING OR INCOMPLETE VALUE, INDICATED BY THE FIELD BEING FILLED WITH 9s, IS NOT INCLUDED IN THE ANALYSIS.
BIG BAY 3 SE
DIVISION: 1 STATION #0770 DATE OF RUN
COUNTY: MARQUETTE PERIOD ANALYSIS FOR 1981 -1998 ( 16 YEARS) 11/17/04
EXTREME SNOWFALL STATISTICS
PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
NUMBER YEARS 16 16 16 16 16 16 16 16 16 16 16 16 16
MEAN 6.79 6.13 7.89 3.35 4.20 .00 .00 .00 .00 2.91 4.88 6.17 40.35
VARIANCE 7.00 14.11 16.67 5.82 12.79 .00 .00 .00 .00 5.18 5.98 8.55 118.77
STND DEV 2.65 3.76 4.08 2.41 3.58 .00 .00 .00 .00 2.27 2.45 2.92 10.90
SKEW .15 1.17 .58 .93 .25 .00 .00 .00 .00 .59 .45 .40 .72
KURTOSIS 2.10 3.41 2.60 2.70 1.50 .00 .00 .00 .00 2.19 2.60 2.39 3.32
GAMMA 6.438 3.297 3.825 2.109 999.000 .000 .000 .000 .000 1.528 3.449 4.140 15.325
BETA 1.055 1.859 2.064 1.588 999.000 .000 .000 .000 .000 1.906 1.414 1.490 2.633
PROB OF ZERO .00 .00 .00 .13 .81 1.00 1.00 1.00 1.00 .50 .00 .00 .00
LEVELS PROBABILITY PERCENTILE VALUES
01 2.1 1.0 1.5 .0 .0 .0 .0 .0 .0 .0 .8 1.3 20.3
05 3.1 1.8 2.6 .0 .0 .0 .0 .0 .0 .0 1.5 2.2 25.0
10 3.7 2.4 3.4 .0 .0 .0 .0 .0 .0 .0 2.0 2.7 27.8
20 4.5 3.3 4.5 .9 .0 .0 .0 .0 .0 .0 2.6 3.6 31.5
25 4.8 3.7 4.9 1.2 .0 .0 .0 .0 .0 .0 2.9 3.9 33.0
30 5.2 4.0 5.4 1.4 .0 .0 .0 .0 .0 .0 3.2 4.3 34.4
40 5.8 4.8 6.3 1.9 .0 .0 .0 .0 .0 .0 3.8 5.0 37.0
50 6.4 5.5 7.2 2.5 .0 .0 .0 .0 .0 .0 4.4 5.7 39.5
60 7.1 6.4 8.2 3.1 .0 .0 .0 .0 .0 1.0 5.1 6.4 42.1
70 7.9 7.4 9.4 3.8 .0 .0 .0 .0 .0 1.8 5.8 7.3 45.1
75 8.4 8.0 10.1 4.2 .0 .0 .0 .0 .0 2.3 6.3 7.9 46.7
80 8.9 8.6 10.9 4.7 .0 .0 .0 .0 .0 2.9 6.8 8.5 48.7
90 10.4 10.7 13.3 6.2 2.0 .0 .0 .0 .0 4.5 8.4 10.2 54.0
95 11.7 12.5 15.4 7.6 4.6 .0 .0 .0 .0 6.0 9.8 11.8 58.7
99 14.5 16.6 19.8 10.6 7.3 .0 .0 .0 .0 9.5 12.9 15.3 68.1
