April 2021 was dry and cool across eastern Kentucky. Jackson averaged 57.0
degrees which is almost a half a degree below normal. London finished April
2021 with a reading of 54.5 degrees which is two degrees cooler than normal.
Jackson totaled 3.39 inches of precipitation for April which is near a half an
inch below normal. London measured 1.45 inches of precipitation for April 2021
which is over two and a half inches drier than normal. Also of note, April 2021
was the second driest April at London. Climate data for Jackson dates back to
1981 while weather records began in 1954 at London.
The following are the 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 2021...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1981 TO 2021
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 86 04/27 86 0 81 04/08
04/07
LOWEST 26 04/02 29 -3 30 04/15
AVG. MAXIMUM 67.7 68.0 -0.3 64.9
AVG. MINIMUM 46.2 46.7 -0.5 43.8
MEAN 57.0 57.4 -0.4 54.3
DAYS MAX >= 90 0 0.2 -0.2 0
DAYS MAX <= 32 0 0.1 -0.1 0
DAYS MIN <= 32 5 1.9 3.1 3
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 10.29 2015
MINIMUM 0.78 1985
TOTALS 3.39 3.83 -0.44 4.69
DAILY AVG. 0.11 0.13 -0.02 0.16
DAYS >= .01 9 12.4 -3.4 16
DAYS >= .10 6 8.2 -2.2 9
DAYS >= .50 2 2.7 -0.7 5
DAYS >= 1.00 1 0.7 0.3 0
GREATEST
24 HR. TOTAL 1.19 04/28 TO 04/29 0.78
SNOWFALL (INCHES)
RECORDS
TOTAL 17.8 1987
TOTALS 0.2 1.0 -0.8 0.5
SINCE 7/1 28.6 23.5 5.1 7.1
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.3 -0.3 0
GREATEST
SNOW DEPTH 0 0
24 HR TOTAL 0.1 04/01 TO 04/01 0.4
04/21 TO 04/21
DEGREE DAYS
HEATING TOTAL 265 268 -3 323
SINCE 7/1 3741 4122 -381 3512
COOLING TOTAL 31 39 -8 11
SINCE 1/1 35 46 -11 35
................................................................
WIND (MPH)
AVERAGE WIND SPEED 4.2
HIGHEST WIND SPEED/DIRECTION 21/290 DATE 04/30
HIGHEST GUST SPEED/DIRECTION 36/300 DATE 04/30
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.36
NUMBER OF DAYS FAIR 13
NUMBER OF DAYS PC 14
NUMBER OF DAYS CLOUDY 3
AVERAGE RH (PERCENT) 55
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 7
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 0
LIGHT SNOW 2 SLEET 0
FOG 12 FOG W/VIS <= 1/4 MILE 2
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: JACKSON KY
MONTH: APRIL
YEAR: 2021
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 40 30 35 -18 30 0 0.01 0.1 0 8.4 17 330 M M 8 1 27 320
2 47 26 37 -16 28 0 0.00 0.0 0 3.7 12 300 M M 1 17 20
3 63 31 47 -7 18 0 0.00 0.0 0 3.5 10 160 M M 0 16 170
4 73 45 59 5 6 0 0.00 0.0 0 5.0 12 310 M M 0 19 280
5 77 49 63 9 2 0 0.00 0.0 0 4.1 12 250 M M 0 21 270
6 79 53 66 12 0 1 0.00 0.0 0 3.6 10 250 M M 0 17 270
7 82 57 70 15 0 5 0.00 0.0 0 3.0 9 170 M M 1 15 160
8 73 58 66 11 0 1 0.79 0.0 0 6.0 14 280 M M 6 13 27 170
9 81 56 69 13 0 4 0.00 0.0 0 4.7 12 190 M M 0 20 170
10 75 60 68 12 0 3 0.21 0.0 0 5.6 16 140 M M 4 1 30 130
11 70 52 61 5 4 0 0.04 0.0 0 5.1 17 240 M M 6 1 34 210
12 69 46 58 2 7 0 0.00 0.0 0 5.3 18 280 M M 3 31 300
13 72 48 60 3 5 0 T 0.0 0 1.2 8 260 M M 4 13 250
14 63 48 56 -1 9 0 0.24 0.0 0 2.1 8 10 M M 6 1 18 10
15 55 43 49 -8 16 0 0.00 0.0 0 5.8 14 310 M M 6 1 26 340
16 62 36 49 -9 16 0 0.00 0.0 0 2.8 10 320 M M 1 17 340
17 63 44 54 -4 11 0 T 0.0 0 1.2 9 330 M M 8 15 320
18 64 43 54 -4 11 0 0.00 0.0 0 1.9 13 340 M M 4 22 290
19 69 47 58 0 7 0 T 0.0 0 4.7 13 270 M M 5 21 320
20 73 47 60 1 5 0 0.00 0.0 0 4.6 13 180 M M 2 22 210
21 59 32 46 -13 19 0 0.05 0.1 0 6.9 16 300 M M 8 1 26 280
22 55 30 43 -16 22 0 T 0.0 0 4.2 17 290 M M 5 29 290
23 62 36 49 -11 16 0 0.00 0.0 0 2.7 10 250 M M 5 16 270
24 52 48 50 -10 15 0 0.42 0.0 0 2.9 8 170 M M 7 1 15 70
25 62 47 55 -5 10 0 T 0.0 0 3.3 10 310 M M 7 1 17 280
26 79 43 61 1 4 0 0.00 0.0 0 1.9 8 170 M M 0 15 220
27 86 60 73 12 0 8 0.00 0.0 0 4.9 15 230 M M 0 8 29 260
28 83 65 74 13 0 9 1.14 0.0 0 4.0 13 190 M M 6 123 23 180
29 71 56 64 3 1 0 0.49 0.0 0 5.8 15 310 M M 7 12 29 220
30 72 51 62 1 3 0 0.00 0.0 0 7.0 21 290 M M 2 1 36 300
================================================================================
SM 2031 1387 265 31 3.39 0.2 125.9 M 112
================================================================================
AV 67.7 46.2 4.2 FASTST M M 4 MAX(MPH)
MISC ----> 21 290 36 300
================================================================================
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: 2021
LATITUDE: 37 35 N
LONGITUDE: 83 19 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 57.0 TOTAL FOR MONTH: 3.39 1 = FOG OR MIST
DPTR FM NORMAL: -0.4 DPTR FM NORMAL: -0.44 2 = FOG REDUCING VISIBILITY
HIGHEST: 86 ON 27 GRTST 24HR 1.19 ON 28-29 TO 1/4 MILE OR LESS
LOWEST: 26 ON 2 3 = THUNDER
SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS
TOTAL MONTH: 0.2 INCH 5 = HAIL
GRTST 24HR 0.1 ON 1- 1 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: 9
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 6
MIN 32 OR BELOW: 5 0.50 INCH OR MORE: 2
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1
[HDD (BASE 65) ]
TOTAL THIS MO. 265 CLEAR (SCALE 0-3) 13
DPTR FM NORMAL -3 PTCLDY (SCALE 4-7) 17
TOTAL FM JUL 1 3741 CLOUDY (SCALE 8-10) 0
DPTR FM NORMAL -381
[CDD (BASE 65) ]
TOTAL THIS MO. 31
DPTR FM NORMAL -8 [PRESSURE DATA]
TOTAL FM JAN 1 35 HIGHEST SLP 30.55 ON 2
DPTR FM NORMAL -11 LOWEST SLP 29.49 ON 11
[REMARKS]
#FINAL-04-21#
London Kentucky data:
...THE LONDON KY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2021...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1954 TO 2021
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 84 04/27 MM MM 80 04/07
LOWEST 24 04/02 MM MM 28 04/15
AVG. MAXIMUM 67.2 68.6 -1.4 65.5
AVG. MINIMUM 41.7 44.5 -2.8 41.4
MEAN 54.5 56.5 -2.0 53.4
DAYS MAX >= 90 0 0.1 -0.1 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 6 3.2 2.8 5
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 10.23 2011
MINIMUM 0.58 1976
TOTALS 1.45 4.05 -2.60 4.34
DAILY AVG. 0.05 0.14 -0.09 0.14
DAYS >= .01 7 12.0 -5.0 15
DAYS >= .10 4 7.9 -3.9 7
DAYS >= .50 1 2.8 -1.8 3
DAYS >= 1.00 0 0.9 -0.9 1
GREATEST
24 HR. TOTAL 0.50 04/29 TO 04/29 1.41
SNOWFALL (INCHES)
RECORDS
TOTAL 9.0 1987
TOTALS MM 1.0 MM MM
SINCE 7/1 MM 10.3 MM MM
SNOWDEPTH AVG. MM MM
DAYS >= 1.0 MM 0.3 MM MM
GREATEST
SNOW DEPTH MM MM
24 HR TOTAL MM MM
DEGREE DAYS
HEATING TOTAL 322 276 46 344
SINCE 7/1 4000 4100 -100 3691
COOLING TOTAL 13 23 -10 5
SINCE 1/1 13 26 -13 27
................................................................
WIND (MPH)
AVERAGE WIND SPEED 5.1
HIGHEST WIND SPEED/DIRECTION 25/260 DATE 04/11
HIGHEST GUST SPEED/DIRECTION 38/220 DATE 04/11
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.35
NUMBER OF DAYS FAIR 13
NUMBER OF DAYS PC 16
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 62
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 4
LIGHT RAIN 10 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 1 SLEET 0
FOG 13 FOG W/VIS <= 1/4 MILE 1
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: LONDON KY
MONTH: APRIL
YEAR: 2021
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 40 29 35 -17 30 0 0.00 M M 9.3 18 330 M M 4 28 330
2 48 24 36 -16 29 0 0.00 M M 4.5 14 20 M M 0 19 360
3 63 25 44 -9 21 0 0.00 M M 2.6 12 190 M M 0 18 210
4 71 35 53 0 12 0 0.00 M M 3.1 15 250 M M 0 18 260
5 76 37 57 4 8 0 0.00 M M 2.2 13 250 M M 0 8 20 190
6 77 43 60 6 5 0 0.00 M M 2.6 14 260 M M 1 21 260
7 81 47 64 10 1 0 0.00 M M 3.4 13 210 M M 1 19 200
8 71 55 63 9 2 0 0.16 M M 7.5 23 190 M M 6 13 33 180
9 80 47 64 9 1 0 0.00 M M 4.8 15 170 M M 1 1 23 180
10 71 52 62 7 3 0 0.23 M M 5.5 18 150 M M 6 1 27 140
11 70 52 61 6 4 0 0.00 M M 11.8 25 260 M M 2 38 220
12 71 42 57 1 8 0 0.00 M M 5.8 18 290 M M 0 27 270
13 69 45 57 1 8 0 T M M 0.9 7 360 M M 5 9 20
14 65 49 57 1 8 0 0.02 M M 5.8 16 340 M M 6 1 25 340
15 58 39 49 -7 16 0 0.00 M M 5.8 17 290 M M 4 25 280
16 63 33 48 -9 17 0 0.00 M M 2.5 13 290 M M 1 16 360
17 61 40 51 -6 14 0 T M M 3.5 12 290 M M 7 17 300
18 64 36 50 -7 15 0 0.00 M M 1.1 8 40 M M 5 1 12 40
19 66 45 56 -2 9 0 T M M 3.8 16 260 M M 5 21 270
20 72 38 55 -3 10 0 0.00 M M 5.7 18 310 M M 2 18 28 320
21 52 30 41 -17 24 0 0.06 M M 8.1 23 300 M M 7 18 31 300
22 55 28 42 -17 23 0 0.00 M M 5.5 21 260 M M 5 1 30 260
23 59 31 45 -14 20 0 0.00 M M 3.0 15 210 M M 6 22 250
24 57 44 51 -8 14 0 0.43 M M 4.6 14 350 M M 8 1 23 110
25 66 45 56 -3 9 0 0.00 M M 5.0 16 340 M M 7 23 340
26 78 38 58 -2 7 0 0.00 M M 2.8 10 180 M M 0 1 15 180
27 84 51 68 8 0 3 0.00 M M 6.8 21 190 M M 0 31 250
28 83 65 74 14 0 9 0.05 M M 7.8 22 250 M M 7 1 31 250
29 72 59 66 6 0 1 0.50 M M 8.3 20 200 M M 6 1 33 220
30 73 48 61 0 4 0 0.00 M M 8.6 20 330 M M 4 12 32 340
================================================================================
SM 2016 1252 322 13 1.45 M 152.7 M 106
================================================================================
AV 67.2 41.7 5.1 FASTST M M 4 MAX(MPH)
MISC ----> 25 260 38 220
================================================================================
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: 2021
LATITUDE: 37 4 N
LONGITUDE: 84 5 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 54.5 TOTAL FOR MONTH: 1.45 1 = FOG OR MIST
DPTR FM NORMAL: -2.0 DPTR FM NORMAL: -2.60 2 = FOG REDUCING VISIBILITY
HIGHEST: 84 ON 27 GRTST 24HR 0.50 ON 28-29 TO 1/4 MILE OR LESS
LOWEST: 24 ON 2 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: 7
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 4
MIN 32 OR BELOW: 6 0.50 INCH OR MORE: 1
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 322 CLEAR (SCALE 0-3) 13
DPTR FM NORMAL 46 PTCLDY (SCALE 4-7) 17
TOTAL FM JUL 1 4000 CLOUDY (SCALE 8-10) 0
DPTR FM NORMAL -100
[CDD (BASE 65) ]
TOTAL THIS MO. 13
DPTR FM NORMAL -10 [PRESSURE DATA]
TOTAL FM JAN 1 13 HIGHEST SLP 30.57 ON 2
DPTR FM NORMAL -13 LOWEST SLP 29.51 ON 11
[REMARKS]
#FINAL-04-21#
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