OLD MISSION 3 SSW DIVISION: 3 STATION #6158 DATE OF RUN COUNTY: GRAND TRAVERSE PERIOD ANALYSIS FOR 1981 -2000 ( 20 YEARS) 11/10/04 NUMBER OF DAYS WITH PRECIPITATION => .25" YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL 1981 0 2 2 6 2 4 1 7 1 5 1 2 33 1982 7 0 2 4 0 3 4 4 6 2 4 5 41 1983 1 1 3 3 8 1 3 2 8 6 4 2 42 1984 0 1 2 2 2 5 1 6 5 5 2 2 33 1985 2 6 1 4 2 1 4 8 7 2 3 3 43 1986 0 0 3 4 3 7 6 5 9 7 1 0 45 1987 1 0 0 1 2 4 1 10 8 5 4 2 38 1988 2 0 1 3 0 2 2 7 4 7 6 1 35 1989 0 0 2 1 4 5 1 4 1 5 3 1 27 1990 4 0 3 2 4 6 3 5 5 2 6 3 43 1991 0 0 3 5 4 1 5 2 5 7 2 1 35 1992 1 1 4 3 1 3 2 2 5 5 7 1 35 1993 2 1 0 4 4 4 3 4 5 4 3 1 35 1994 3 2 1 4 1 4 5 4 6 3 2 0 35 1995 2 0 2 3 6 5 2 8 4 7 2 2 43 1996 2 2 1 5 3 4 4 1 6 5 4 2 39 1997 1 3 1 0 4 1 5 5 2 2 1 1 26 1998 1 0 3 5 2 4 1 6 3 3 4 2 34 1999 2 0 0 3 6 6 6 3 3 0 1 2 32 2000 1 0 1 1 4 5 3 3 5 3 2 1 29 NON-ZERO 15 9 17 19 18 20 20 20 20 19 20 18 20 ZEROES 5 11 3 1 2 0 0 0 0 1 0 2 0 PROB OF ZERO .25 .55 .15 .05 .10 .00 .00 .00 .00 .05 .00 .10 .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 2.1 2.1 2.1 3.3 3.4 3.8 3.1 4.8 4.9 4.5 3.1 1.9 36.2 VARIANCE 2.6 2.6 .9 2.1 3.4 3.3 2.9 5.6 4.8 3.4 3.1 1.0 30.2 STND DEV 1.6 1.6 1.0 1.5 1.9 1.8 1.7 2.4 2.2 1.8 1.8 1.0 5.5 SKEW 2.1 1.7 .3 -.1 .8 -.2 .2 .4 -.1 -.0 .7 1.6 -.1 KURTOSIS 6.9 4.9 2.0 2.2 3.2 2.2 1.8 2.4 2.5 1.7 2.6 5.8 2.1 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 NUMBER OF DAYS WITH PRECIPITATION => .25" 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 2.1 2.1 2.1 3.3 3.4 3.8 3.1 4.8 4.9 4.5 3.1 1.9 36.2 VARIANCE 2.6 2.6 .9 2.1 3.4 3.3 2.9 5.6 4.8 3.4 3.1 1.0 30.2 STND DEV 1.6 1.6 1.0 1.5 1.9 1.8 1.7 2.4 2.2 1.8 1.8 1.0 5.5 SKEW 2.1 1.7 .3 -.1 .8 -.2 .2 .4 -.1 -.0 .7 1.6 -.1 KURTOSIS 6.9 4.9 2.0 2.2 3.2 2.2 1.8 2.4 2.5 1.7 2.6 5.8 2.1 SIGMA 1.598 1.616 2.274 5.233 3.559 6.484 6.164 5.590 7.906 6.607 3.726 1.502 19.779 ETA 1.000 1.000 2.200 3.600 1.765 3.600 3.600 2.200 3.600 3.600 1.942 1.360 3.600 MU .536 .495 .045 -1.400 .276 -2.093 -2.454 -.150 -2.224 -1.480 -.204 .514 18.327 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 .25 .55 .15 .05 .10 .00 .00 .00 .00 .05 .00 .10 .00 LEVELS PROBABILITY PERCENTILE VALUES 01 0 0 0 0 0 0 0 1 0 0 0 0 24 05 0 0 0 0 0 1 0 1 1 0 1 0 27 10 0 0 0 1 0 1 1 2 2 1 1 0 29 20 0 0 1 2 1 2 2 3 3 3 2 1 31 25 0 0 1 2 2 2 2 3 3 3 2 1 32 30 1 0 1 2 2 3 2 3 4 3 2 1 33 40 1 0 1 3 2 3 3 4 4 4 2 1 35 50 1 0 2 3 3 4 3 5 5 4 3 2 36 60 2 1 2 4 3 4 4 5 5 5 3 2 38 70 2 1 2 4 4 5 4 6 6 5 4 2 39 75 2 1 3 4 4 5 4 6 6 6 4 2 40 80 3 2 3 5 5 5 5 7 7 6 5 3 41 90 4 3 3 5 6 6 5 8 8 7 6 3 43 95 5 4 4 6 7 7 6 9 8 7 6 4 45 99 7 7 5 7 9 8 7 11 10 9 8 5 49