Climatological Report (Monthly)
Issued by NWS Louisville, KY

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CXUS53 KLMK 011818
CLMSDF


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

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

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

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              76   12/26/2016
                        12/03/1982
                        07/10/1936
 LOW              -15   12/22/1989
HIGHEST            69   12/04        MM      MM       76  12/26
LOWEST              8   12/27        MM      MM       13  12/19
                                                          12/15
AVG. MAXIMUM     45.6              45.8    -0.2     45.4
AVG. MINIMUM     28.3              30.0    -1.7     30.5
MEAN             37.0              37.9    -0.9     38.0
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      7               3.4     3.6        3
DAYS MIN <= 32     18              17.8     0.2       19
DAYS MIN <= 0       0               0.3    -0.3        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.86   1990
 MINIMUM         0.65   1976
TOTALS           2.73              3.83   -1.10     5.30
DAILY AVG.       0.09              0.12   -0.03     0.17
DAYS >= .01         7              12.0    -5.0       12
DAYS >= .10         3               7.0    -4.0        7
DAYS >= .50         3               2.5     0.5        2
DAYS >= 1.00        1               0.9     0.1        1
GREATEST
 24 HR. TOTAL    1.03   12/23 TO 12/23           12/17 TO 12/18
                                                          12/18 TO 12/18
                                                          12/18 TO 12/18
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    12/18(00) TO 12/18(00)
                                                 12/18(00) TO 12/18(00)8
                                                 12/18(00) TO 12/18(00)8

SNOWFALL (INCHES)
RECORDS
 TOTAL           24.6   5
                        0
 24 HR TOTAL     15.0   12/07/1917 TO 12/08/1917
 SNOW DEPTH        14   12/08/1917
TOTALS            0.2               2.6    -2.4      0.1
 LIQUID EQUIV    0.02              0.30   -0.28     0.01
SINCE 7/1         0.2               2.8    -2.6      0.1
 LIQUID 7/1      0.02              0.30   -0.28     0.01
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       5               2.9     2.1        6
DAYS >= 1.0         0               0.8    -0.8        0
GREATEST
 SNOW DEPTH         0   MM                            -1  12/09
 24 HR TOTAL      0.2   12/24 TO 12/24           12/18 TO 12/18
                                                          12/18 TO 12/18
                                                          12/18 TO 12/18
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    12/18(00) TO 12/18(00)
                                                 12/18(00) TO 12/18(00)8
                                                 12/18(00) TO 12/18(00)8

DEGREE_DAYS
HEATING TOTAL     863               841      22      831
 SINCE 7/1       1529              1576     -47     1298
COOLING TOTAL       0                 1      -1        1
 SINCE 1/1       1789              1614     175     2083

FREEZE DATES
RECORD
 EARLIEST     10/03/1974
 LATEST       05/10/1966
EARLIEST                        10/25
LATEST                          04/15
.........................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
RESULTANT WIND SPEED/DIRECTION   3/262
HIGHEST WIND SPEED/DIRECTION    30/290    DATE  12/24
HIGHEST GUST SPEED/DIRECTION    42/280    DATE  12/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY         14

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       4
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                5     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      0
HAZE                      6

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

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