SAINT IGNACE DIVISION: 2 STATION #7274 DATE OF RUN COUNTY: MACKINAC PERIOD ANALYSIS FOR 1981 -2000 ( 20 YEARS) 11/10/04 NUMBER OF DAYS WITH MINIMUM TEMPERATURE <= 32 F YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL 1981 31 27 28 18 9 0 0 0 1 12 18 28 172 1982 31 28 30 25 0 0 0 0 0 2 16 27 159 1983 31 26 27 19 9 1 0 0 0 11 18 31 173 1984 31 27 31 11 7 0 0 0 0 2 19 28 156 1985 31 27 31 18 0 0 0 0 0 5 18 31 161 1986 30 28 31 11 3 0 0 0 0 4 22 28 157 1987 31 28 24 8 1 0 0 0 0 14 21 28 155 1988 31 29 30 20 1 0 0 0 0 8 14 30 163 1989 31 28 30 24 4 0 0 0 1 4 22 31 175 1990 31 28 27 18 4 0 0 0 0 6 20 26 160 1991 31 26 29 12 1 0 0 0 1 4 20 29 153 1992 29 29 29 18 3 0 0 0 0 6 18 30 162 1993 31 28 31 21 0 0 0 0 1 8 23 25 168 1994 31 27 31 18 5 0 0 0 0 0 12 23 147 1995 31 28 26 14 0 0 0 0 0 4 23 31 157 1996 30 29 31 25 3 0 0 0 0 5 21 28 172 1997 31 28 29 20 4 0 0 0 0 10 20 28 170 1998 31 22 25 9 0 0 0 0 0 1 10 22 120 1999 31 26 28 5 0 0 0 0 0 5 7 25 127 2000 31 25 20 15 0 0 0 0 1 2 11 31 136 NON-ZERO 20 20 20 20 13 1 0 0 5 19 20 20 20 ZEROES 0 0 0 0 7 19 20 20 15 1 0 0 0 PROB OF ZERO .00 .00 .00 .00 .35 .95 1.00 1.00 .75 .05 .00 .00 .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 30.8 27.2 28.4 16.5 4.2 1.0 .0 .0 1.0 5.9 17.6 28.0 157.1 VARIANCE .3 2.7 8.5 32.3 7.5 .0 .0 .0 .0 13.4 21.1 7.3 223.2 STND DEV .5 1.6 2.9 5.7 2.7 .0 .0 .0 .0 3.7 4.6 2.7 14.9 SKEW -2.5 -1.6 -1.4 -.3 .6 .0 .0 .0 .0 .7 -.9 -.7 -1.1 KURTOSIS 8.4 6.1 4.5 2.3 2.4 .0 .0 .0 .0 2.6 2.8 2.7 3.6 NOTE: A MISSING OR INCOMPLETE VALUE, INDICATED BY THE FIELD BEING FILLED WITH 9s, IS NOT INCLUDED IN THE ANALYSIS. SAINT IGNACE DIVISION: 2 STATION #7274 DATE OF RUN COUNTY: MACKINAC PERIOD ANALYSIS FOR 1981 -2000 ( 20 YEARS) 11/10/04 NUMBER OF DAYS WITH MINIMUM TEMPERATURE <= 32 F 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 30.8 27.2 28.4 16.5 4.2 1.0 .0 .0 1.0 5.9 17.6 28.0 157.1 VARIANCE .3 2.7 8.5 32.3 7.5 .0 .0 .0 .0 13.4 21.1 7.3 223.2 STND DEV .5 1.6 2.9 5.7 2.7 .0 .0 .0 .0 3.7 4.6 2.7 14.9 SKEW -2.5 -1.6 -1.4 -.3 .6 .0 .0 .0 .0 .7 -.9 -.7 -1.1 KURTOSIS 8.4 6.1 4.5 2.3 2.4 .0 .0 .0 .0 2.6 2.8 2.7 3.6 SIGMA 999.000 999.000 999.000 35.911 5.752 999.000 .000 .000 999.000 7.697 183.608 23.546 350.967 ETA .000 .000 .000 6.950 1.945 999.000 .000 .000 999.000 1.945 50.000 10.000 300.000 MU 999.000 999.000 999.000 -17.130 -.947 999.000 .000 .000 999.000 -.878-163.910 5.599 -334.580 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 .100 TRANS FACTOR .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 PROB OF ZERO .00 .00 .00 .00 .35 .95 1.00 1.00 .75 .05 .00 .00 .00 LEVELS PROBABILITY PERCENTILE VALUES 01 30 23 22 1 0 0 0 0 0 0 4 20 110 05 30 24 24 6 0 0 0 0 0 0 9 23 129 10 30 25 25 9 0 0 0 0 0 1 12 24 138 20 30 26 26 12 0 0 0 0 0 2 14 26 146 25 30 26 26 13 0 0 0 0 0 3 15 26 149 30 31 26 27 14 0 0 0 0 0 3 16 27 152 40 31 27 28 15 1 0 0 0 0 4 17 28 156 50 31 27 28 17 2 0 0 0 0 5 18 28 160 60 31 28 29 18 3 0 0 0 0 6 19 29 163 70 31 28 30 20 4 0 0 0 0 7 20 30 166 75 31 28 30 21 5 0 0 0 0 8 21 30 168 80 31 28 31 21 5 0 0 0 1 9 21 30 169 90 31 28 31 23 7 0 0 0 1 11 23 31 174 95 31 28 31 25 8 0 0 0 1 13 24 31 177 99 31 28 31 28 11 1 0 0 1 16 25 31 182