Saint Charles 3SSW DIVISION: STATION #7255 DATE OF RUN COUNTY: PERIOD ANALYSIS FOR 1971 -1999 ( 26 YEARS) 11/17/04 SNOWFALL (INCHES) YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL 1971 8.3 4.2 23.1 .2 .0 .0 .0 .0 .0 .0 5.0 9.6 50.4 1972 15.3 12.7 11.1 2.5 .0 .0 .0 .0 .0 .0 4.5 24.4 70.5 1973 .9 13.8 12.0 4.9 .0 .0 .0 .0 .0 .0 .0 14.4 46.0 1974 9.2 10.9 9.8 .0 .0 .0 .0 .0 .0 .0 6.2 11.8 47.9 1975 7.0 10.3 12.5 14.3 .0 .0 .0 .0 .0 .0 12.2 20.9 77.2 1976 24.8 7.9 7.7 .1 .0 .0 .0 .0 .0 .0 1.0 12.6 54.1 1977 9.6 2.6 8.0 .5 .0 .0 .0 .0 .0 .0 7.3 9.0 37.0 1978 30.5 6.2 3.0 .0 .0 .0 .0 .0 .0 .0 4.9 10.1 54.7 1979 20.4 3.0 4.9 1.6 .0 .0 .0 .0 .0 .0 4.2 4.8 38.9 1980 10.2 3.6 12.2 2.2 .0 .0 .0 .0 .0 .0 .3 13.0 41.5 1981 13.4 13.5 .0 .0 .0 .0 .0 .0 .0 .0 .0 10.3 37.2 1982 14.9 15.5 7.0 4.0 .0 .0 .0 .0 .0 .0 .0 6.0 47.4 1983 3.5 4.9 20.0 3.0 .0 .0 .0 .0 .0 .0 2.5 21.0 54.9 1984 14.5 5.0 4.0 .0 .0 .0 .0 .0 .0 .0 .0 12.9 36.4 1988 7.3 17.9 4.2 .1 .0 .0 .0 .0 .0 .0 .0 4.0 33.5 1989 8.1 9.0 6.4 1.0 .0 .0 .0 .0 .0 .0 6.7 7.0 38.2 1990 5.5 15.5 1.0 .0 .0 .0 .0 .0 .0 .0 .0 10.1 32.1 1991 11.5 5.5 2.5 .0 .0 .0 .0 .0 .0 .0 6.5 10.5 36.5 1992 7.8 4.3 15.5 1.5 .0 .0 .0 .0 .0 1.5 1.5 3.5 35.6 1993 12.5 13.5 6.5 6.0 .0 .0 .0 .0 .0 .0 .6 2.5 41.6 1994 13.8 21.0 4.0 .0 .0 .0 .0 .0 .0 .0 .5 7.0 46.3 1995 15.0 5.5 3.0 .0 .0 .0 .0 .0 .0 .0 5.5 7.5 36.5 1996 6.7 4.5 8.9 1.0 .0 .0 .0 .0 .0 .0 1.5 13.8 36.4 1997 23.4 8.0 5.0 3.5 .0 .0 .0 .0 .0 6.0 .5 3.8 50.2 1998 11.4 .0 7.3 .0 .0 .0 .0 .0 .0 .0 .0 2.0 20.7 1999 26.5 .7 9.9 .0 .0 .0 .0 .0 .0 .0 .0 3.7 40.8 NON-ZERO 26 25 25 16 0 0 0 0 0 2 18 26 26 ZEROES 0 1 1 10 26 26 26 26 26 24 8 0 0 PROB OF ZERO .00 .04 .04 .38 1.00 1.00 1.00 1.00 1.00 .92 .31 .00 .00 NOTE: STATISTICS ARE COMPUTED ON THE NON-ZERO VALUES NUMBER YEARS 26 26 26 26 26 26 26 26 26 26 26 26 26 MEAN 12.77 8.78 8.38 2.90 .00 .00 .00 .00 .00 3.75 3.97 9.85 43.94 VARIANCE 52.73 29.03 29.02 12.36 .00 .00 .00 .00 .00 10.13 10.26 34.13 141.03 STND DEV 7.26 5.39 5.39 3.52 .00 .00 .00 .00 .00 3.18 3.20 5.84 11.88 SKEW .83 .55 1.10 2.26 .00 .00 .00 .00 .00 .00 .77 .82 1.00 KURTOSIS 3.09 2.30 3.90 8.03 .00 .00 .00 .00 .00 1.00 3.32 3.19 4.41 NOTE: A MISSING OR INCOMPLETE VALUE, INDICATED BY THE FIELD BEING FILLED WITH 9s, IS NOT INCLUDED IN THE ANALYSIS. ????? DIVISION: STATION #7255 DATE OF RUN COUNTY: PERIOD ANALYSIS FOR 1971 -1999 ( 26 YEARS) 11/17/04 SNOWFALL (INCHES) STATISTICS PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL NUMBER YEARS 26 26 26 26 26 26 26 26 26 26 26 26 26 MEAN 12.77 8.78 8.38 2.90 .00 .00 .00 .00 .00 3.75 3.97 9.85 43.94 VARIANCE 52.73 29.03 29.02 12.36 .00 .00 .00 .00 .00 10.13 10.26 34.13 141.03 STND DEV 7.26 5.39 5.39 3.52 .00 .00 .00 .00 .00 3.18 3.20 5.84 11.88 SKEW .83 .55 1.10 2.26 .00 .00 .00 .00 .00 .00 .77 .82 1.00 KURTOSIS 3.09 2.30 3.90 8.03 .00 .00 .00 .00 .00 1.00 3.32 3.19 4.41 GAMMA 2.777 2.366 2.520 .818 .000 .000 .000 .000 .000 999.000 1.232 2.831 15.161 BETA 4.598 3.711 3.325 3.547 .000 .000 .000 .000 .000 999.000 3.221 3.481 2.898 PROB OF ZERO .00 .04 .04 .38 1.00 1.00 1.00 1.00 1.00 .92 .31 .00 .00 LEVELS PROBABILITY PERCENTILE VALUES 01 1.7 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 1.3 22.0 05 3.2 1.0 1.0 .0 .0 .0 .0 .0 .0 .0 .0 2.5 27.2 10 4.4 2.1 2.2 .0 .0 .0 .0 .0 .0 .0 .0 3.5 30.2 20 6.3 3.6 3.6 .0 .0 .0 .0 .0 .0 .0 .0 4.9 34.3 25 7.1 4.2 4.2 .0 .0 .0 .0 .0 .0 .0 .0 5.5 35.9 30 7.9 4.8 4.7 .0 .0 .0 .0 .0 .0 .0 .0 6.2 37.4 40 9.6 6.0 5.9 .0 .0 .0 .0 .0 .0 .0 .8 7.4 40.2 50 11.3 7.3 7.1 .5 .0 .0 .0 .0 .0 .0 1.5 8.7 43.0 60 13.2 8.7 8.4 1.1 .0 .0 .0 .0 .0 .0 2.4 10.2 45.9 70 15.4 10.4 10.0 1.9 .0 .0 .0 .0 .0 .0 3.5 11.9 49.1 75 16.8 11.5 10.9 2.5 .0 .0 .0 .0 .0 .0 4.2 12.9 50.9 80 18.4 12.7 12.0 3.2 .0 .0 .0 .0 .0 .0 5.0 14.1 53.1 90 23.0 16.2 15.3 5.4 .0 .0 .0 .0 .0 .0 7.4 17.6 58.9 95 27.3 19.6 18.3 7.7 .0 .0 .0 .0 .0 1.0 9.8 20.9 64.0 99 36.4 26.9 25.0 13.1 .0 .0 .0 .0 .0 4.8 15.2 27.7 74.4