National Weather Service United States Department of Commerce

Heavy Rain Continues in Florida; Cold Front Brings Thunderstorms and Showers to Central US

Scattered areas of heavy rain continue to produce isolated flash flooding across the Florida peninsula. Anomalous moisture will combine with a cold front and will bring heavy rain and scattered flash flooding across the Mid-South, Ohio and Tennessee Valleys today and Tuesday. Above average temperatures will continue to be found ahead of the cold front from the Midwest to the Northeast. Read More >

The following are April climate summaries for Jackson and London as well as the April Local

Climatological Data reports for Jackson and London:

 

...THE JACKSON KY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1981 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             92   04/27/1986
 LOW              20   04/07/1982
HIGHEST           89   04/05         86       3       87  04/23
LOWEST            34   04/24         29       5       32  04/02
                                                          04/10
AVG. MAXIMUM    70.8               69.2     1.6     67.0
AVG. MINIMUM    47.4               47.3     0.1     46.4
MEAN            59.1               58.2     0.9     56.7
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                2.1    -2.1        2
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       10.29   2015
 MINIMUM        0.78   1985
TOTALS          3.15               4.54   -1.39     3.60
DAILY AVG.      0.11               0.15   -0.04     0.12
DAYS >= .01       12               13.2    -1.2       16
DAYS >= .10        9                8.7     0.3        7
DAYS >= .50        1                3.4    -2.4        2
DAYS >= 1.00       0                0.8    -0.8        0
GREATEST
 24 HR. TOTAL   0.67   04/27 TO 04/28               0.87

SNOWFALL (INCHES)
RECORDS
 TOTAL          17.8   1987
TOTALS             T*               0.4    -0.4        T
SINCE 7/1        3.4               23.4   -20.0     22.1
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.2    -0.2        0
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL      MM*                                   T

DEGREE DAYS
HEATING TOTAL    207                244     -37      284
 SINCE 7/1      3352               3969    -617     3544
COOLING TOTAL     39                 41      -2       43
 SINCE 1/1        45                 50      -5       46
................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.4
HIGHEST WIND SPEED/DIRECTION    28/280    DATE  04/01
HIGHEST GUST SPEED/DIRECTION    59/250    DATE  04/01

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.33
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     52

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

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

&&

...*TRACE SNOWFALL WAS ACTUALLY HAIL THAT OCCURRED ON THE 4TH AND 22ND...

$$

 

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   JACKSON KY
                                          MONTH:     APRIL
                                          YEAR:      2023
                                          LATITUDE:   37 35 N
                                          LONGITUDE:  83 19 W

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                     12Z  AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  73  42  58   5   7   0 0.41  0.0    0 13.4 28 280   M    M   5 13     59 250
 2  61  40  51  -3  14   0 0.00  0.0    0  3.3 10 270   M    M   5        17 260
 3  73  49  61   7   4   0 0.00  0.0    0  5.3 16 190   M    M   3        30 170
 4  83  57  70  16   0   5 0.14    T    0  6.0 15 170   M    M   4 1358   24 190
 5  89  60  75  20   0  10 0.11  0.0    0  7.6 24 300   M    M   2 13     41 310
 6  62  45  54  -1  11   0 0.34  0.0    0  4.4  9 340   M    M  10 12     20 340
 7  52  43  48  -8  17   0 0.01  0.0    0  5.0 12  50   M    M   6        19  60
 8  54  42  48  -8  17   0 0.00  0.0    0  5.8 13  80   M    M   1        24  80
 9  67  41  54  -2  11   0 0.00  0.0    0  5.1 12  50   M    M   0        22  10
10  73  45  59   2   6   0 0.00  0.0    0  3.1  8 200   M    M   0        16  20
11  76  47  62   5   3   0 0.00  0.0    0  2.7 10 310   M    M   0        18 290
12  80  52  66   9   0   1 0.00  0.0    0  3.1 12 310   M    M   0        16 300
13  85  55  70  12   0   5    T  0.0    0  3.5  9 140   M    M   1        16 170
14  77  57  67   9   0   2 0.43  0.0    0  2.8 15 240   M    M   6 123    29 250
15  78  53  66   8   0   1 0.00  0.0    0  3.5  9 310   M    M   3 1      17 260
16  72  47  60   1   5   0 0.33  0.0    0  6.3 22 280   M    M   7 1      39 290
17  63  44  54  -5  11   0 0.01  0.0    0  7.6 16 240   M    M   3        32 260
18  73  45  59   0   6   0 0.00  0.0    0  3.9 12 300   M    M   1        21 310
19  83  52  68   8   0   3 0.00  0.0    0  2.5 10 220   M    M   0        22 180
20  85  61  73  13   0   8 0.00  0.0    0  4.6 14 180   M    M   0        26 140
21  80  57  69   9   0   4    T  0.0    0  4.8 15 180   M    M   1 3      27 190
22  63  46  55  -5  10   0 0.61    T    0  4.7 20 290   M    M   7 135    42 270
23  57  38  48 -13  17   0 0.00  0.0    0  5.0 10 320   M    M   5        18 330
24  58  34  46 -15  19   0 0.00  0.0    0  2.3 12 290   M    M   2        22 270
25  64  35  50 -11  15   0 0.00  0.0    0  0.9  8 120   M    M   0        14 120
26  72  42  57  -5   8   0 0.00  0.0    0  2.1  8 330   M    M   1        14 280
27  72  47  60  -2   5   0 0.42  0.0    0  3.1  9 150   M    M   4 1      15 160
28  72  54  63   1   2   0 0.32  0.0    0  2.9 13 290   M    M   8 138    26 270
29  68  49  59  -3   6   0 0.00  0.0    0  1.5  7 320   M    M   3 1      13 310
30  60  43  52 -10  13   0 0.02  0.0    0  3.8 20 290   M    M   8 1      32 320
================================================================================
SM 2125 1422       207  39  3.15    T    130.6          M       96
================================================================================
AV 70.8 47.4                               4.4 FASTST   M    M   3    MAX(MPH)
                                 MISC ---->    28 280                 59 250
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:   JACKSON KY
                                          MONTH:     APRIL
                                          YEAR:      2023
                                          LATITUDE:   37 35 N
                                          LONGITUDE:  83 19 W

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16

AVERAGE MONTHLY: 59.1   TOTAL FOR MONTH:   3.15    1 = FOG OR MIST
DPTR FM NORMAL:   0.9   DPTR FM NORMAL:   -1.39    2 = FOG REDUCING VISIBILITY
HIGHEST:    89 ON  5    GRTST 24HR  1.33 ON 31- 1      TO 1/4 MILE OR LESS
LOWEST:     34 ON 24                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:  T            5 = HAIL
                        GRTST 24HR   T   ON  4- 4  6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  0            7 = DUSTSTORM OR SANDSTORM:
                                                       VSBY 1/2 MILE OR LESS
                                                   8 = SMOKE OR HAZE
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW
                                                   X = TORNADO
MAX 32 OR BELOW:   0    0.01 INCH OR MORE:  12
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   9
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   207    CLEAR  (SCALE 0-3)  15
DPTR FM NORMAL   -37    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1  3352    CLOUDY (SCALE 8-10)  3
DPTR FM NORMAL  -617

[CDD (BASE 65) ]
TOTAL THIS MO.    39
DPTR FM NORMAL    -2    [PRESSURE DATA]
TOTAL FM JAN 1    45    HIGHEST SLP 30.45 ON  7
DPTR FM NORMAL    -5    LOWEST  SLP 29.44 ON 30

[REMARKS]
#FINAL-04-23#

 

...THE LONDON KY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1954 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             90   04/10/1995
                       04/27/1986
 LOW              19   04/08/2007
HIGHEST           86   04/05         MM      MM       85  04/23
LOWEST            31   04/24         MM      MM       27  04/10
AVG. MAXIMUM    70.4               69.3     1.1     66.9
AVG. MINIMUM    43.8               44.9    -1.1     43.5
MEAN            57.1               57.1     0.0     55.2
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     1                3.4    -2.4        3
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       10.23   2011
 MINIMUM        0.58   1976
TOTALS          3.27               4.65   -1.38     4.20
DAILY AVG.      0.11               0.16   -0.05     0.14
DAYS >= .01       10               12.5    -2.5       17
DAYS >= .10        8                8.3    -0.3       10
DAYS >= .50        3                3.8    -0.8        3
DAYS >= 1.00       0                1.2    -1.2        1
GREATEST
 24 HR. TOTAL   0.90   04/05 TO 04/06               1.47

SNOWFALL (INCHES)
RECORDS
 TOTAL           9.0   1987
TOTALS            MM                 MM      MM       MM
SINCE 7/1         MM                 MM      MM       MM
SNOWDEPTH AVG.    MM                                  MM
DAYS >= 1.0       MM                 MM      MM       MM
GREATEST
 SNOW DEPTH       MM                                  MM
 24 HR TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL    243                260     -17      313
 SINCE 7/1        MM               4062      MM       MM
COOLING TOTAL     14                 24     -10       24
 SINCE 1/1        18                 27      -9       25
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.0
HIGHEST WIND SPEED/DIRECTION    40/240    DATE  04/01
HIGHEST GUST SPEED/DIRECTION    59/270    DATE  04/01

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.33
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       5
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      3
HAZE                      2

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

&&

...MISSING ANNUAL HEATING DEGREE DAYS DUE TO TEMPERATURE SENSOR
ERROR IN NOVEMBER...

$$

 

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   LONDON KY
                                          MONTH:     APRIL
                                          YEAR:      2023
                                          LATITUDE:   37  4 N
                                          LONGITUDE:  84  5 W

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                     12Z  AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  72  43  58   6   7   0 0.56    M    M 18.1 40 240   M    M   4 13     59 270
 2  63  41  52  -1  13   0 0.00    M    M  4.1 12  30   M    M   4        15 190
 3  70  43  57   4   8   0 0.00    M    M  6.2 16 180   M    M   4 8      26 190
 4  83  55  69  16   0   4 0.00    M    M  6.8 18 210   M    M   5        27 200
 5  86  60  73  19   0   8 0.17    M    M 11.5 32 290   M    M   3 1      46 280
 6  62  47  55   1  10   0 0.73    M    M  6.0 14 330   M    M  10 13     22 330
 7  62  47  55   1  10   0 0.00    M    M  8.8 15 340   M    M   5        22 340
 8  54  47  51  -4  14   0 0.00    M    M  8.2 14  60   M    M   9        21 100
 9  68  34  51  -4  14   0 0.00    M    M  4.9 16  90   M    M   0        24 110
10  71  35  53  -2  12   0 0.00    M    M  2.0  9 200   M    M   0        14 200
11  75  38  57   1   8   0 0.00    M    M  1.8 10 280   M    M   0        14 260
12  78  40  59   3   6   0 0.00    M    M  1.5 10  60   M    M   0 8      15  70
13  85  43  64   8   1   0    T    M    M  4.0 14 180   M    M   1        20 190
14  73  53  63   6   2   0 0.22    M    M  3.1 13 230   M    M   7 123    21 240
15  77  48  63   6   2   0 0.00    M    M  3.6 10 180   M    M   2 12     18 230
16  71  46  59   2   6   0 0.39    M    M 10.0 31 290   M    M   7 1      47 290
17  63  43  53  -5  12   0 0.00    M    M 12.5 30 250   M    M   1        40 260
18  76  38  57  -1   8   0 0.00    M    M  5.4 24 260   M    M   1        31 250
19  83  44  64   6   1   0 0.00    M    M  2.9 14 200   M    M   0        20 160
20  84  48  66   7   0   1 0.00    M    M  6.0 20 190   M    M   0        29 200
21  77  54  66   7   0   1 0.19    M    M  8.0 23 280   M    M   1 13     36 190
22  63  46  55  -4  10   0 0.61    M    M  8.1 26 260   M    M   7 13     45 250
23  56  38  47 -13  18   0 0.00    M    M  5.7 15 290   M    M   3        20 300
24  58  31  45 -15  20   0 0.00    M    M  3.3 14 300   M    M   2        20 290
25  65  34  50 -10  15   0 0.00    M    M  3.1 12  90   M    M   0        16 100
26  70  35  53  -7  12   0 0.00    M    M  2.7 10 200   M    M   0        13 200
27  64  44  54  -7  11   0 0.29    M    M  3.4  8 130   M    M   5 1      13 170
28  73  51  62   1   3   0 0.08    M    M  6.1 25 280   M    M   9 13     38 280
29  68  45  57  -4   8   0 0.00    M    M  2.3  8 330   M    M   3 12     13 170
30  62  43  53  -9  12   0 0.03    M    M  9.1 30 270   M    M   6        41 260
================================================================================
SM 2112 1314       243  14  3.27    M    179.2          M       99
================================================================================
AV 70.4 43.8                               6.0 FASTST   M    M   3    MAX(MPH)
                                 MISC ---->    40 240                 59 270
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:   LONDON KY
                                          MONTH:     APRIL
                                          YEAR:      2023
                                          LATITUDE:   37  4 N
                                          LONGITUDE:  84  5 W

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16

AVERAGE MONTHLY: 57.1   TOTAL FOR MONTH:   3.27    1 = FOG OR MIST
DPTR FM NORMAL:   0.0   DPTR FM NORMAL:   -1.38    2 = FOG REDUCING VISIBILITY
HIGHEST:    86 ON  5    GRTST 24HR  1.31 ON 31- 1      TO 1/4 MILE OR LESS
LOWEST:     31 ON 24                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:  M            5 = HAIL
                        GRTST 24HR    M  ON   M    6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  M  ON   M    7 = DUSTSTORM OR SANDSTORM:
                                                       VSBY 1/2 MILE OR LESS
                                                   8 = SMOKE OR HAZE
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW
                                                   X = TORNADO
MAX 32 OR BELOW:   0    0.01 INCH OR MORE:  10
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   8
MIN 32 OR BELOW:   1    0.50 INCH OR MORE:   3
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   243    CLEAR  (SCALE 0-3)  15
DPTR FM NORMAL   -17    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1    MM    CLOUDY (SCALE 8-10)  3
DPTR FM NORMAL    MM

[CDD (BASE 65) ]
TOTAL THIS MO.    14
DPTR FM NORMAL   -10    [PRESSURE DATA]
TOTAL FM JAN 1    18    HIGHEST SLP 30.43 ON  7
DPTR FM NORMAL    -9    LOWEST  SLP 29.47 ON 30

[REMARKS]
MISSING ANNUAL HEATING DEGREE DAYS DUE TO TEMPERATURE SENSOR
ERROR IN NOVEMBER
#FINAL-04-23#