Number of days with precipitation of .10 inch or above(Weibull)
BIG BAY 3 SE
DIVISION: 1 STATION #0770 DATE OF RUN
COUNTY: MARQUETTE PERIOD ANALYSIS FOR 1981 -1998 ( 16 YEARS) 11/17/04
NUMBER OF DAYS WITH PRECIPITATION => .10"
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1981 4 9 5 8 7 10 4 7 6 8 3 11 82
1982 9 1 4 7 6 5 7 9 12 7 5 5 77
1983 11 3 10 6 7 6 4 7 9 7 10 5 85
1984 5 5 5 2 3 6 7 7 13 7 5 9 74
1986 7 2 6 4 2 6 5 4 8 6 5 1 56
1987 1 3 2 4 7 6 10 10 9 11 7 8 78
1988 6 3 4 3 8 5 2 10 9 13 10 8 81
1989 6 5 4 3 5 8 2 4 5 6 6 6 60
1990 3 2 2 5 5 8 6 3 10 9 3 8 64
1991 4 3 8 7 8 3 12 3 10 7 11 5 81
1992 3 5 3 6 3 3 10 7 8 6 7 8 69
1994 6 0 4 5 5 8 4 8 8 8 5 1 62
1995 4 3 7 7 6 3 8 4 7 14 7 11 81
1996 11 6 3 9 5 9 14 6 7 7 6 10 93
1997 11 2 6 4 7 3 9 4 5 5 10 6 72
1998 7 2 3 2 3 6 4 5 2 3 12 6 55
NON-ZERO 16 15 16 16 16 16 16 16 16 16 16 16 16
ZEROES 0 1 0 0 0 0 0 0 0 0 0 0 0
PROB OF ZERO .00 .06 .00 .00 .00 .00 .00 .00 .00 .00 .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 6.1 3.6 4.8 5.1 5.4 5.9 6.8 6.1 8.0 7.8 7.0 6.8 73.1
VARIANCE 9.4 4.3 4.9 4.5 3.6 5.0 12.5 5.6 7.5 8.1 7.9 9.0 124.0
STND DEV 3.1 2.1 2.2 2.1 1.9 2.2 3.5 2.4 2.7 2.8 2.8 3.0 11.1
SKEW .3 1.2 .9 .1 -.4 .1 .5 .3 -.2 .8 .3 -.5 -.2
KURTOSIS 2.2 4.1 3.1 2.0 2.0 2.0 2.3 1.8 3.1 3.3 2.0 2.6 2.0
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
NUMBER OF DAYS WITH PRECIPITATION => .10" 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 6.1 3.6 4.8 5.1 5.4 5.9 6.8 6.1 8.0 7.8 7.0 6.8 73.1
VARIANCE 9.4 4.3 4.9 4.5 3.6 5.0 12.5 5.6 7.5 8.1 7.9 9.0 124.0
STND DEV 3.1 2.1 2.2 2.1 1.9 2.2 3.5 2.4 2.7 2.8 2.8 3.0 11.1
SKEW .3 1.2 .9 .1 -.4 .1 .5 .3 -.2 .8 .3 -.5 -.2
KURTOSIS 2.2 4.1 3.1 2.0 2.0 2.0 2.3 1.8 3.1 3.3 2.0 2.6 2.0
SIGMA 7.234 3.030 4.235 7.644 11.989 8.039 8.309 8.499 17.276 5.452 6.600 18.968 40.050
ETA 2.200 1.360 1.765 3.600 6.950 3.600 2.200 3.600 6.950 1.765 2.200 6.950 3.600
MU -.282 .825 .980 -1.763 -5.773 -1.307 -.608 -1.534 -8.155 2.897 1.155 -10.986 37.035
SCALE FACTOR 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000
TRANS FACTOR .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000
PROB OF ZERO .00 .06 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
LEVELS PROBABILITY PERCENTILE VALUES
01 1 0 1 0 0 1 0 1 1 3 2 0 48
05 2 0 2 2 2 2 2 2 3 4 3 1 55
10 2 1 2 2 3 3 2 3 4 4 4 3 58
20 3 2 3 3 4 4 4 4 6 5 4 4 63
25 4 2 3 4 4 4 4 4 6 6 5 5 65
30 4 2 3 4 5 5 5 5 7 6 5 5 67
40 5 2 4 5 5 5 6 6 8 7 6 6 70
50 6 3 4 5 6 6 6 6 8 7 7 7 73
60 7 4 5 6 6 7 7 7 9 8 7 8 76
70 8 4 6 6 7 7 8 7 10 9 8 8 79
75 8 5 6 7 7 7 9 8 10 9 9 9 81
80 9 5 7 7 7 8 10 8 10 10 9 9 83
90 10 6 8 8 8 9 12 9 11 12 11 10 88
95 12 8 9 9 8 10 13 10 12 13 12 11 91
99 14 10 11 10 9 11 16 11 13 16 14 13 98
