Climatological Report (Monthly)
Issued by NWS Jackson, KY

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CXUS53 KJKL 010737
CLMJKL

CLIMATE REPORT
NATIONAL WEATHER SERVICE JACKSON KY
237 AM EST TUE JAN 1 2013

...................................

...THE JACKSON KY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1981 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              79   12/03/1982
 LOW              -13   12/22/1989
HIGHEST            72   12/03        66       6       67  12/14
LOWEST             23   12/30        10      13       21  12/11
AVG. MAXIMUM     50.9              46.0     4.9     51.7
AVG. MINIMUM     36.4              30.2     6.2     35.2
MEAN             43.7              38.1     5.6     43.4
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      1               4.0    -3.0        0
DAYS MIN <= 32     14              17.9    -3.9       16
DAYS MIN <= 0       0               0.3    -0.3        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        12.97   1990
 MINIMUM         1.74   1985
TOTALS           6.39              4.18    2.21     4.18
DAILY AVG.       0.21              0.13    0.08     0.13
DAYS >= .01        18              14.0     4.0       10
DAYS >= .10        12               8.2     3.8        7
DAYS >= .50         5               2.7     2.3        3
DAYS >= 1.00        2               1.0     1.0        1
GREATEST
 24 HR. TOTAL    2.22   12/08 TO 12/09              1.12

SNOWFALL (INCHES)
RECORDS
 TOTAL           18.5   2010
TOTALS            1.8               4.9    -3.1      0.4
SINCE 7/1         2.9               5.5    -2.6      0.4
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         1               1.8    -0.8        0
GREATEST
 SNOW DEPTH         T   12/21                          T
                        12/22
                        12/30
 24 HR TOTAL      1.5   12/21 TO 12/21               0.3

DEGREE_DAYS
HEATING TOTAL     656               834    -178      660
 SINCE 7/1       1608              1634     -26     1377
COOLING TOTAL       0                 1      -1        0
 SINCE 1/1       1318              1155     163     1255
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.0
HIGHEST WIND SPEED/DIRECTION    23/250    DATE  12/20
HIGHEST GUST SPEED/DIRECTION    38/270    DATE  12/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY         15

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       8
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                6     SLEET                      3
FOG                      18     FOG W/VIS <= 1/4 MILE      5
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$

CARICO
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