National Weather Service Weather Forecast Office

2009 CLIMATIC SUMMARY FOR JACKSON KY (JKL)...
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TEMPERATURE DATA...

MONTH  AVG   AVG   MEAN  DEPART  MAXIMUM    MINIMUM      DEGREE DAYS
       MAX   MIN   TEMP                                   HEAT  COOL

JAN... 39.2  22.7  31.0  - 2.9  62  4/23    -2   16TH     1047     0
FEB... 49.5  30.1  39.8  + 1.9  74  11TH     4    5TH      699     0
MAR... 58.5  39.5  49.0  + 1.9  78   7TH     9    3RD      494     4
APR... 68.2  47.5  57.8  + 1.5  90  24TH    29    7TH      273    65
MAY... 73.5  56.5  65.0  + 0.9  84  22/23   42   18TH       84    91
JUN... 81.2  63.4  72.3  + 0.9  89  19TH    52    6TH        6   234
JUL... 78.6  62.5  70.6  - 4.4  86  25TH    53   20TH        9   192
AUG... 81.2  64.6  72.9  - 0.9  89   9TH    52   31ST        2   254
SEP... 76.0  60.5  68.3  + 0.4  83  22ND    47   29TH       27   132
OCT... 63.5  46.1  54.8  - 2.7  82  9/30    29   19TH      320    15
NOV... 59.9  41.9  50.9  + 3.2  74   7/8    29   28TH      414     0
DEC... 43.2  28.3  35.7  - 2.6  62  14TH    16   11TH      900     0

ANNUAL 64.4  47.0  55.7  - 0.2
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PRECIPITATION DATA...

MONTH   RAIN  DEPART   GREATEST         SNOW   GREATEST      MAX SNOW
                       IN 24HRS                DAILY         DEPTH

JAN...  5.80  + 2.24   1.81 27TH-28TH    9.0   1.6  19TH    2  20TH/21ST
FEB...  1.73  - 1.95   0.33 26TH-27TH   11.5   6.3 3RD-4TH  6      4TH
MAR...  3.52  - 0.86   0.71 25TH-26TH    4.6   4.1 12-13TH  3     13TH
APR...  3.64  - 0.15   0.71 10TH-11TH    2.1   2.1   7TH    T      7TH
MAY...  9.22  + 4.06   2.83  8TH- 9TH    0.0                0
JUN...  7.03  + 2.36   3.02  2ND- 3RD    0.0                0
JUL...  6.40  + 1.81   1.71 30TH-31ST    0.0                0
AUG...  3.55  - 0.58   1.91  4TH- 5TH    0.0                0
SEP...  4.88  + 1.11   2.79 25TH-26TH    0.0                0
OCT...  3.54  + 0.36   1.10 14TH-15TH    0.0                0
NOV...  0.80  - 3.40   0.74      30TH      T     T  27TH    0
DEC...  5.96  + 1.69   2.06  8TH- 9TH   17.6  11.6 18-19TH 10 19TH/20TH

ANNUAL 56.07  + 6.69
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WIND DATA...

MONTH  AVERAGE SPEED   PEAK WIND / DIRECTION / DATE

JAN...    4.6 MPH      37 MPH      WEST ON THE  7TH
FEB...    5.8 MPH      54 MPH SOUTHWEST ON THE 11TH
MAR...    4.3 MPH      38 MPH      WEST ON THE 29TH
APR...    5.0 MPH      53 MPH      WEST ON THE  5TH
MAY...    2.2 MPH      39 MPH      WEST ON THE  8TH
JUN...    1.9 MPH      32 MPH      EAST ON THE 25TH
JUL...    1.5 MPH      36 MPH      WEST ON THE 25TH
AUG...    1.3 MPH      36 MPH     NORTH ON THE  4TH
SEP...    1.3 MPH      29 MPH      WEST ON THE 28TH
OCT...    2.6 MPH      35 MPH NORTHWEST ON THE  9TH
NOV...    3.2 MPH      31 MPH SOUTHWEST ON THE  7TH
DEC...    4.4 MPH      55 MPH SOUTHWEST ON THE  9TH
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OTHER WEATHER DATA...

MONTH   FOG   DENSE FOG   THUNDER   ICE PELLETS   HAIL   HAZE   SNOW

JAN...   20       7          1           1         0      5      16
FEB...   11       5          1           3         0      4       9
MAR...   15       6          2           2         0      1       5
APR...   16       4          3           1         0      1       2
MAY...   20      12          9           0         0      2       0
JUN...   24      12         12           0         0     21       0
JUL...   26      11          8           0         0     13       0
AUG...   26       9          5           0         0     12       0
SEP...   21       9          6           0         0      2       0
OCT...   19       5          0           0         0      0       0
NOV...    5       1          0           1         0      3       3
DEC...   21       7          1           1         0      3      12

ANNUAL  224      88         48           9         0     67      47
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2009 CLIMATIC SUMMARY FOR LONDON KY (LOZ)...
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TEMPERATURE DATA...

MONTH  AVG   AVG   MEAN  DEPART  MAXIMUM                 DEGREE DAYS
       MAX   MIN   TEMP                                   HEAT  COOL

JAN... 41.9  23.4  32.6  - 1.8  62   23RD     1   16TH      994    0
FEB... 51.1  28.7  39.9  + 1.2  71   11TH     6    5TH      697    0
MAR... 59.2  37.9  48.6  + 1.5  78   10TH    11    3RD      504    0
APR... 68.0  45.0  56.5  + 0.8  89   24TH    32  8/9TH      280   33
MAY... 74.8  55.6  65.2  + 1.2  84  22/28    38  18/19       78   91
JUN... 83.1  63.6  73.3  + 1.5  90  19/27    50    6TH        0  260
JUL... 80.8  63.1  72.0  - 3.8  88   25TH    54  18/20        2  224
AUG... 83.2  64.0  73.6  - 0.8  90    9TH    54   31ST        0  275
SEP... 76.8  60.8  68.8  + 0.9  83 4/24TH    48   29TH       24  147
OCT... 64.6  44.3  54.5  - 2.0  83    9TH    29   19TH      327    9
NOV... 59.5  36.4  47.9  + 1.0  72    8TH    25   28TH      505    0
DEC... 45.0  28.0  36.5  - 2.0  62   14TH    14   11TH      876    0

ANNUAL 65.7  46.0  55.9  - 0.1
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PRECIPITATION DATA...

MONTH   RAIN  DEPART   GREATEST
                       IN 24HRS

JAN...  5.28  + 1.27   1.68 27TH-28TH
FEB...  2.50  - 1.22   0.92 17TH-18TH
MAR...  4.79  - 0.18   1.01 25TH-26TH
APR...  3.74  - 0.27   0.93  2ND- 3RD
MAY...  8.97  + 4.28   2.69  3RD- 4TH
JUN...  6.75  + 2.51   2.40 10TH-11TH
JUL...  4.89  + 0.50   1.77 25TH-26TH
AUG...  3.37  + 0.01   1.54 18TH-19TH
SEP...  5.42  + 2.05   2.18 26TH-27TH
OCT...  4.34  + 1.54   1.12      31ST
NOV...  0.62  - 3.28   0.38      30TH
DEC...  5.13  + 0.82   2.03  8TH- 9TH

ANNUAL 55.80  + 8.39
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WIND DATA...

MONTH  AVERAGE SPEED   PEAK WIND / DIRECTION / DATE

JAN...    5.8 MPH      41 MPH      WEST ON THE  7TH & 8TH
FEB...    6.9 MPH      59 MPH      WEST ON THE 11TH
MAR...    5.8 MPH      44 MPH      WEST ON THE 28TH
APR...    6.4 MPH      41 MPH NORTHWEST ON THE  5TH
MAY...    4.3 MPH      31 MPH      WEST ON THE  6TH
JUN...    3.6 MPH      39 MPH      WEST ON THE 16TH
JUL...    3.7 MPH      45 MPH      WEST ON THE 25TH
AUG...    3.3 MPH      44 MPH     NORTH ON THE 12TH
SEP...    2.8 MPH      33 MPH      WEST ON THE 28TH
OCT...    4.3 MPH      37 MPH     SOUTH ON THE 30TH
NOV...    3.2 MPH      25 MPH      WEST ON THE 27TH
DEC...    5.5 MPH      49 MPH      WEST ON THE  9TH
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OTHER WEATHER DATA...

MONTH   FOG   DENSE FOG   THUNDER   HAZE

JAN...   17       1          2        9
FEB...   13       2          2        3
MAR...   17       2          2        2
APR...   18       1          3        1
MAY...   19       4         11        3
JUN...   26       4         16        5
JUL...   26       4          8        4
AUG...   23       5          7        5
SEP...   23       7         11        1
OCT...   24       2          1        2
NOV...   11       1          0        8
DEC...   20       1          0        1

ANNUAL  237      34         63       43
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...THE JACKSON KY CLIMATE SUMMARY FOR THE YEAR OF 2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1981 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
HIGH             101   08/18/1988
                        08/17/1988
                        07/08/1988
LOW              -18   01/19/1994
                        01/21/1985
                        01/20/1985
HIGHEST            90   04/24        81       9       93
LOWEST             -2   01/16        31     -33        5
AVG. MAXIMUM     64.4              65.2    -0.8     65.7
AVG. MINIMUM     47.0              46.6     0.4     46.2
MEAN             55.7              55.9    -0.2     56.0
DAYS MAX >= 90      1              14.8   -13.8       15
DAYS MAX <= 32     22              16.5     5.5       17
DAYS MIN <= 32     78              81.3    -3.3       87
DAYS MIN <= 0       1               1.4    -0.4        0

PRECIPITATION (INCHES)
RECORD
MAXIMUM        63.29   1989
MINIMUM        34.37   2001
TOTALS          56.07             49.38    6.69    40.50
DAYS >= .01       163             144.1    18.9      136
DAYS >= .10       106              91.2    14.8       82
DAYS >= .50        40              33.4     6.6       33
DAYS >= 1.00       13              12.3     0.7        6
GREATEST
24 HR. TOTAL    2.83   05/08 TO 05/09              1.81

SNOWFALL (INCHES)
RECORDS
TOTAL           62.7   1996
24 HR TOTAL     19.8   03/13/1993 TO 03/13/1993
TOTALS           44.8              24.5             18.1
SINCE 7/1        17.6               5.2    12.4      7.8
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0        14               7.3     6.7        6
GREATEST
24 HR TOTAL     11.6   12/18 TO 12/19               2.5

DEGREE_DAYS
HEATING TOTAL    4275              4358     -83     4346
SINCE 7/1       1672              1663       9     1701
COOLING TOTAL     987              1059     -72     1115
SINCE 1/1        987              1059     -72     1115
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              3.2
RESULTANT WIND SPEED/DIRECTION   1/153
HIGHEST WIND SPEED/DIRECTION    31/240    DATE  12/09
HIGHEST GUST SPEED/DIRECTION    55/220    DATE  12/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   59
NUMBER OF DAYS FAIR          149
NUMBER OF DAYS PC            130
NUMBER OF DAYS CLOUDY         86

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             48     MIXED PRECIP               1
HEAVY RAIN               60     RAIN                      95
LIGHT RAIN              159     FREEZING RAIN              2
LT FREEZING RAIN          7     HAIL                       0
HEAVY SNOW                4     SNOW                      12
LIGHT SNOW               42     SLEET                      9
FOG                     224     FOG W/VIS <= 1/4 MILE     88
HAZE                     67

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

$$

...THE LONDON KY CLIMATE SUMMARY FOR THE YEAR OF 2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1954 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
HIGH             102   08/16/2007
LOW              -25   01/19/1994
HIGHEST            90   08/09        MM      MM       95
                        06/27
                        06/19
LOWEST              1   01/16        MM      MM        7
AVG. MAXIMUM     65.7              66.7    -1.0     67.5
AVG. MINIMUM     46.0              45.2     0.8     45.2
MEAN             55.9              56.0    -0.1     56.4
DAYS MAX >= 90      3              18.2   -15.2       32
DAYS MAX <= 32     11              13.8    -2.8       12
DAYS MIN <= 32     92              93.0    -1.0       92
DAYS MIN <= 0       0               1.9    -1.9        0

PRECIPITATION (INCHES)
RECORD
MAXIMUM        65.22   2004
MINIMUM        32.32   2007
TOTALS          55.80             47.41    8.39    35.12
DAYS >= .01       142             135.6     6.4      126
DAYS >= .10        96              87.6     8.4       83
DAYS >= .50        45              33.1    11.9       22
DAYS >= 1.00       13              11.0     2.0        5
GREATEST
24 HR. TOTAL    2.69   05/03 TO 05/04              1.82

SNOWFALL (INCHES)
RECORDS
TOTAL           63.9
24 HR TOTAL     15.0   03/09/1960 TO 03/09/1960
TOTALS             MM              14.0      MM       MM
SINCE 7/1          MM               1.9      MM       MM
SNOWDEPTH AVG.     MM                 0      MM       MM
DAYS >= 1.0        MM               5.8      MM       MM
GREATEST
24 HR TOTAL       MM                                 MM

DEGREE_DAYS
HEATING TOTAL    4287              4363     -76     4277
SINCE 7/1       1734              1705      29     1731
COOLING TOTAL    1039              1102     -63     1218
SINCE 1/1       1039              1099     -60     1218
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              4.6
RESULTANT WIND SPEED/DIRECTION   1/251
HIGHEST WIND SPEED/DIRECTION    43/250    DATE  02/11
HIGHEST GUST SPEED/DIRECTION    59/260    DATE  02/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM

NUMBER OF DAYS FAIR          173
NUMBER OF DAYS PC            121
NUMBER OF DAYS CLOUDY         71

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             63     MIXED PRECIP               1
HEAVY RAIN               62     RAIN                      88
LIGHT RAIN              164     FREEZING RAIN              4
LT FREEZING RAIN         12     HAIL                       0
HEAVY SNOW                2     SNOW                       3
LIGHT SNOW               30     SLEET                      0
FOG                     237     FOG W/VIS <= 1/4 MILE     34
HAZE                     44

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

$$