Climatological Report (Monthly)
Issued by NWS Louisville, KY

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CXUS53 KLMK 011818
CLMLEX


CLIMATE REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
115 PM EST MON JAN 1 2018

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

...THE LEXINGTON KY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              75   12/03/1982
                        12/02/1982
 LOW              -19   12/22/1989
HIGHEST            67   12/04        MM      MM       74  12/26
LOWEST              7   12/31        MM      MM       11  12/15
AVG. MAXIMUM     44.3              43.9     0.4     45.3
AVG. MINIMUM     25.5              28.0    -2.5     29.0
MEAN             34.9              36.0    -1.1     37.1
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      8               5.0     3.0        3
DAYS MIN <= 32     23              19.8     3.2       21
DAYS MIN <= 0       0               0.4    -0.4        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.17   1990
 MINIMUM         0.61   1965
TOTALS           2.37              3.93   -1.56     6.18
DAILY AVG.       0.08              0.13   -0.05     0.20
DAYS >= .01         9              12.4    -3.4       13
DAYS >= .10         3               7.4    -4.4       10
DAYS >= .50         2               2.8    -0.8        7
DAYS >= 1.00        1               0.7     0.3        2
GREATEST
 24 HR. TOTAL    1.18   12/23 TO 12/23

SNOWFALL (INCHES)
RECORDS
 TOTAL           19.4   5
                        0
TOTALS            0.2               2.5    -2.3      0.1
SINCE 7/1         0.2               2.8    -2.6      0.1
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.8    -0.8        0
GREATEST
 SNOW DEPTH         T   12/10                         -1  12/09
 24 HR TOTAL      0.2   12/09 TO 12/09

DEGREE_DAYS
HEATING TOTAL     924               901      23      857
 SINCE 7/1       1704              1788     -84     1443
COOLING TOTAL       0                 0       0        0
 SINCE 1/1       1290              1190     100     1640
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.9
HIGHEST WIND SPEED/DIRECTION    30/270    DATE  12/14
HIGHEST GUST SPEED/DIRECTION    46/280    DATE  12/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           12
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                6     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      3
HAZE                     11

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

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