Saint Charles 3SSW DIVISION: STATION #7255 DATE OF RUN COUNTY: PERIOD ANALYSIS FOR 1971 -1999 ( 26 YEARS) 11/17/04 NUMBER OF DAYS WITH MINIMUM TEMPERATURE <= 32 F YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL 1971 31 25 29 12 3 0 0 0 0 0 17 21 138 1972 31 28 29 16 1 0 0 0 0 9 18 30 162 1973 27 27 11 8 2 0 0 0 0 2 15 28 120 1974 28 28 26 11 1 0 0 0 2 11 16 31 154 1975 27 25 29 16 0 0 0 0 0 3 12 30 142 1976 31 23 22 14 3 0 0 0 2 8 23 31 157 1977 31 26 17 7 1 0 0 0 0 4 15 26 127 1978 31 28 28 13 3 0 0 0 0 7 15 31 156 1979 31 28 20 13 1 0 0 0 0 3 12 25 133 1980 30 26 28 8 0 0 0 0 0 10 20 27 149 1981 29 22 24 8 2 0 0 0 2 14 21 30 152 1982 31 27 26 19 3 0 0 2 1 9 18 19 155 1983 28 25 22 15 6 0 0 0 2 7 20 29 154 1984 31 23 28 9 5 0 0 0 7 8 17 26 154 1988 29 29 25 12 2 1 0 0 0 17 21 31 167 1989 31 27 28 18 4 0 0 0 6 9 23 31 177 1990 29 27 21 16 2 1 0 0 2 11 18 29 156 1991 29 27 22 8 1 0 0 0 7 8 25 28 155 1992 28 29 25 15 6 0 0 0 5 19 17 27 171 1993 30 28 29 21 0 0 0 0 1 16 21 27 173 1994 31 27 28 18 7 0 0 0 0 8 22 26 167 1995 26 28 26 19 1 0 0 0 4 5 27 30 166 1996 30 28 28 18 4 0 0 0 1 11 27 29 176 1997 29 27 24 17 2 0 0 0 0 16 21 30 166 1998 28 23 23 14 0 0 0 0 0 11 16 25 140 1999 30 28 30 14 1 0 0 0 2 13 17 28 163 NON-ZERO 26 26 26 26 22 2 0 1 14 25 26 26 26 ZEROES 0 0 0 0 4 24 26 25 12 1 0 0 0 PROB OF ZERO .00 .00 .00 .00 .15 .92 1.00 .96 .46 .04 .00 .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 29.5 26.5 24.9 13.8 2.8 1.0 .0 2.0 3.1 9.6 19.0 27.9 155.0 VARIANCE 2.3 3.9 19.2 16.2 3.4 .0 .0 .0 4.9 20.3 16.2 9.2 215.1 STND DEV 1.5 2.0 4.4 4.0 1.8 .0 .0 .0 2.2 4.5 4.0 3.0 14.7 SKEW -.6 -.9 -1.4 -.2 .9 .0 .0 .0 .8 .3 .3 -1.3 -.6 KURTOSIS 2.3 2.8 5.1 2.0 2.7 .0 .0 .0 2.1 2.5 2.5 4.5 2.9 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 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 26 26 26 26 26 26 26 26 26 26 26 26 26 MEAN 29.5 26.5 24.9 13.8 2.8 1.0 .0 2.0 3.1 9.6 19.0 27.9 155.0 VARIANCE 2.3 3.9 19.2 16.2 3.4 .0 .0 .0 4.9 20.3 16.2 9.2 215.1 STND DEV 1.5 2.0 4.4 4.0 1.8 .0 .0 .0 2.2 4.5 4.0 3.0 14.7 SKEW -.6 -.9 -1.4 -.2 .9 .0 .0 .0 .8 .3 .3 -1.3 -.6 KURTOSIS 2.3 2.8 5.1 2.0 2.7 .0 .0 .0 2.1 2.5 2.5 4.5 2.9 SIGMA 13.365 78.566 999.000 14.496 3.551 999.000 .000 999.000 4.250 10.591 9.483 999.000 12.814 ETA 10.000 50.000 .000 3.600 1.765 999.000 .000 999.000 1.765 2.200 2.200 .000 10.000 MU 16.785 -51.190 999.000 .746 -.388 999.000 .000 999.000 -.640 .180 10.601 999.000 3.309 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 .15 .92 1.00 .96 .46 .04 .00 .00 .00 LEVELS PROBABILITY PERCENTILE VALUES 01 25 20 15 5 0 0 0 0 0 0 12 21 114 05 27 23 18 7 0 0 0 0 0 2 13 23 128 10 27 24 19 9 0 0 0 0 0 3 14 24 135 20 28 25 21 10 0 0 0 0 0 5 15 25 143 25 29 25 22 11 1 0 0 0 0 6 16 26 146 30 29 26 23 12 1 0 0 0 0 6 17 26 149 40 29 26 24 13 2 0 0 0 0 8 18 27 153 50 30 27 25 14 2 0 0 0 0 9 19 28 157 60 30 27 26 15 3 0 0 0 1 10 20 29 160 70 30 28 27 16 3 0 0 0 2 12 21 29 164 75 31 28 28 17 4 0 0 0 3 12 22 30 165 80 31 28 29 17 4 0 0 0 4 13 22 30 167 90 31 28 31 19 5 0 0 0 5 16 24 31 172 95 31 28 31 20 6 1 0 0 6 18 26 31 176 99 31 28 31 23 8 1 0 1 9 21 30 31 182