A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >
September 2020 saw near normal temperatures with above normal precipitation throughout eastern Kentucky. Jackson
saw 3.78 inches which was about a third of an inch above normal. London totaled 4.30 inches which was nearly an inch
wetter than normal. Temperatures were near normal with Jackson finishing September with an average of 68.5 degrees
which is nearly half a degree above normal. London averaged 68.3 degrees which is normal for September.
Climate data for Jackson dates back to 1981 while weather records began in 1954 at London.
The following are September climate summaries for Jackson and London as well as the September Local
Climatological Data reports for Jackson and London:
...THE JACKSON KY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2020...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1981 TO 2020
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 98 09/10/2019
LOW 34 09/24/1989
HIGHEST 87 09/02 89 -2 98 09/10
09/01
LOWEST 46 09/30 42 4 53 09/25
09/19
AVG. MAXIMUM 77.5 78.0 -0.5 89.1
AVG. MINIMUM 59.5 58.2 1.3 64.5
MEAN 68.5 68.1 0.4 76.8
DAYS MAX >= 90 0 1.5 -1.5 13
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 9.17 2018
MINIMUM T 2019
TOTALS 3.78 3.46 0.32 T
DAILY AVG. 0.13 0.12 0.01 T
DAYS >= .01 8 8.4 -0.4 0
DAYS >= .10 5 5.7 -0.7 0
DAYS >= .50 4 2.2 1.8 0
DAYS >= 1.00 1 1.0 0.0 0
GREATEST
24 HR. TOTAL 1.13 09/13 TO 09/13 T
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0 0.0
SNOWDEPTH AVG. 0 MM MM 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0
24 HR TOTAL 0.0 0 0.0
DEGREE_DAYS
HEATING TOTAL 43 50 -7 0
SINCE 7/1 43 52 -9 0
COOLING TOTAL 158 143 15 364
SINCE 1/1 1345 1121 224 1501
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 1.1
HIGHEST WIND SPEED/DIRECTION 13/310 DATE 09/28
HIGHEST GUST SPEED/DIRECTION 25/300 DATE 09/28
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.30
NUMBER OF DAYS FAIR 15
NUMBER OF DAYS PC 12
NUMBER OF DAYS CLOUDY 3
AVERAGE RH (PERCENT) 74
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 6 RAIN 5
LIGHT RAIN 9 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 15 FOG W/VIS <= 1/4 MILE 9
HAZE 0
- 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: SEPTEMBER
YEAR: 2020
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 87 71 79 6 0 14 0.03 0.0 0 0.8 8 160 M M 4 12 14 180
2 87 73 80 8 0 15 0.83 0.0 0 2.0 9 290 M M 5 13 19 250
3 81 72 77 5 0 12 0.59 0.0 0 2.1 12 280 M M 7 1 24 270
4 82 66 74 2 0 9 0.08 0.0 0 3.1 13 300 M M 6 12 19 310
5 79 58 69 -3 0 4 0.00 0.0 0 1.2 6 160 M M 0 12 360
6 82 58 70 -1 0 5 0.00 0.0 0 0.9 6 160 M M 0 11 160
7 83 61 72 1 0 7 0.00 0.0 0 2.0 8 160 M M 0 17 140
8 85 64 75 4 0 10 0.00 0.0 0 1.0 7 140 M M 0 13 140
9 85 65 75 5 0 10 0.00 0.0 0 0.8 5 110 M M 1 9 150
10 86 68 77 7 0 12 0.00 0.0 0 0.0 5 100 M M 1 9 100
11 81 69 75 5 0 10 0.00 0.0 0 0.0 5 70 M M 6 1 9 30
12 86 67 77 7 0 12 0.19 0.0 0 0.9 8 140 M M 8 123 14 140
13 75 70 73 4 0 8 1.13 0.0 0 1.2 7 290 M M 10 12 12 270
14 77 62 70 1 0 5 0.00 0.0 0 0.4 3 50 M M 6 12 9 30
15 75 56 66 -2 0 1 0.00 0.0 0 0.3 5 30 M M 0 9 70
16 80 58 69 1 0 4 0.00 0.0 0 0.1 5 310 M M 4 12 8 190
17 77 64 71 3 0 6 0.00 0.0 0 0.0 6 60 M M 5 10 80
18 69 54 62 -5 3 0 0.00 0.0 0 0.1 5 350 M M 7 11 20
19 70 46 58 -9 7 0 0.00 0.0 0 0.4 9 140 M M 2 16 80
20 71 49 60 -7 5 0 0.00 0.0 0 1.4 8 120 M M 1 17 110
21 71 48 60 -6 5 0 0.00 0.0 0 1.3 7 140 M M 0 11 130
22 73 48 61 -5 4 0 0.00 0.0 0 1.4 8 300 M M 1 13 240
23 70 53 62 -3 3 0 0.00 0.0 0 0.4 5 200 M M 1 12 8 190
24 70 59 65 0 0 0 T 0.0 0 0.3 5 140 M M 8 12 8 250
25 75 58 67 2 0 2 0.00 0.0 0 0.3 6 140 M M 7 9 130
26 78 58 68 4 0 3 0.00 0.0 0 1.0 6 200 M M 7 12 11 190
27 80 61 71 7 0 6 T 0.0 0 1.0 7 260 M M 4 15 210
28 80 55 68 4 0 3 0.91 0.0 0 3.4 13 310 M M 0 1 25 300
29 60 49 55 -8 10 0 0.02 0.0 0 0.7 10 260 M M 3 1 24 300
30 71 46 59 -4 6 0 0.00 0.0 0 3.5 10 230 M M 0 1 24 220
================================================================================
SM 2326 1786 43 158 3.78 0.0 32.0 M 104
================================================================================
AV 77.5 59.5 1.1 FASTST M M 3 MAX(MPH)
MISC ----> # 13 300 # 25 300
================================================================================
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: SEPTEMBER
YEAR: 2020
LATITUDE: 37 35 N
LONGITUDE: 83 19 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 68.5 TOTAL FOR MONTH: 3.78 1 = FOG OR MIST
DPTR FM NORMAL: 0.4 DPTR FM NORMAL: 0.32 2 = FOG REDUCING VISIBILITY
HIGHEST: 87 ON 2, 1 GRTST 24HR 1.13 ON 13-13 TO 1/4 MILE OR LESS
LOWEST: 46 ON 30,19 3 = THUNDER
SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS
TOTAL MONTH: 0.0 INCH 5 = HAIL
GRTST 24HR 0.0 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: 8
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 5
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 4
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1
[HDD (BASE 65) ]
TOTAL THIS MO. 43 CLEAR (SCALE 0-3) 15
DPTR FM NORMAL -7 PTCLDY (SCALE 4-7) 14
TOTAL FM JUL 1 43 CLOUDY (SCALE 8-10) 1
DPTR FM NORMAL -9
[CDD (BASE 65) ]
TOTAL THIS MO. 158
DPTR FM NORMAL 15 [PRESSURE DATA]
TOTAL FM JAN 1 1345 HIGHEST SLP 30.44 ON 21
DPTR FM NORMAL 224 LOWEST SLP 29.69 ON 28
[REMARKS]
#FINAL-09-20#
London Kentucky data:
CLIMATE REPORT
NATIONAL WEATHER SERVICE JACKSON KY
1017 AM EDT THU OCT 1 2020
...................................
...THE LONDON KY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2020...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1954 TO 2020
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 97 09/05/2007
LOW 32 09/24/1983
HIGHEST 88 09/10 MM MM 95 09/13
09/10
LOWEST 43 09/22 MM MM 49 09/25
AVG. MAXIMUM 78.2 79.6 -1.4 88.2
AVG. MINIMUM 58.4 56.9 1.5 61.6
MEAN 68.3 68.3 0.0 74.9
DAYS MAX >= 90 0 2.0 -2.0 15
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.50 2004
MINIMUM 0.11 2019
TOTALS 4.30 3.37 0.93 0.11
DAILY AVG. 0.14 0.11 0.03 0.00
DAYS >= .01 9 8.5 0.5 3
DAYS >= .10 6 5.4 0.6 0
DAYS >= .50 4 2.3 1.7 0
DAYS >= 1.00 2 0.9 1.1 0
GREATEST
24 HR. TOTAL 1.43 09/13 TO 09/13 0.07
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
TOTALS MM 0.0 MM MM
SINCE 7/1 MM 0.0 MM MM
SNOWDEPTH AVG. MM MM MM MM
DAYS >= 1.0 MM 0.0 MM MM
GREATEST
SNOW DEPTH MM MM
24 HR TOTAL MM MM
DEGREE_DAYS
HEATING TOTAL 46 46 0 0
SINCE 7/1 46 47 -1 0
COOLING TOTAL 155 143 12 303
SINCE 1/1 1244 1167 77 1417
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 3.8
HIGHEST WIND SPEED/DIRECTION 26/280 DATE 09/03
HIGHEST GUST SPEED/DIRECTION 42/280 DATE 09/03
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.30
NUMBER OF DAYS FAIR 15
NUMBER OF DAYS PC 12
NUMBER OF DAYS CLOUDY 3
AVERAGE RH (PERCENT) 78
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 6 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 6
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 20 FOG W/VIS <= 1/4 MILE 5
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: LONDON KY
MONTH: SEPTEMBER
YEAR: 2020
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 86 71 79 6 0 14 T M M 3.5 14 250 M M 5 1 18 260
2 86 72 79 6 0 14 0.67 M M 6.2 20 290 M M 5 13 29 300
3 83 70 77 4 0 12 0.57 M M 7.4 26 280 M M 5 138 42 280
4 84 60 72 0 0 7 T M M 4.9 14 320 M M 5 123 21 340
5 81 55 68 -4 0 3 0.00 M M 1.8 8 20 M M 0 1 13 360
6 83 54 69 -3 0 4 0.00 M M 1.5 8 180 M M 0 1 12 190
7 83 56 70 -2 0 5 0.00 M M 3.0 13 250 M M 0 1 16 200
8 86 59 73 2 0 8 0.00 M M 1.7 9 20 M M 0 1 13 360
9 87 61 74 3 0 9 0.00 M M 2.1 8 20 M M 1 12 190
10 88 66 77 7 0 12 0.00 M M 2.4 9 10 M M 0 15 10
11 84 69 77 7 0 12 0.00 M M 5.6 13 30 M M 4 17 20
12 86 70 78 8 0 13 0.16 M M 3.4 14 150 M M 7 13 28 150
13 76 67 72 3 0 7 1.43 M M 2.7 15 250 M M 5 123 20 250
14 79 63 71 2 0 6 0.00 M M 6.4 16 40 M M 4 12 23 20
15 78 58 68 -1 0 3 0.00 M M 4.3 8 30 M M 1 13 50
16 82 60 71 3 0 6 0.00 M M 1.6 8 180 M M 3 1 12 150
17 79 66 73 5 0 8 0.00 M M 5.8 14 40 M M 5 20 20
18 70 53 62 -6 3 0 0.00 M M 9.0 15 10 M M 7 21 40
19 72 47 60 -7 5 0 0.00 M M 5.4 12 30 M M 1 19 40
20 73 50 62 -5 3 0 0.00 M M 4.7 12 60 M M 1 18 40
21 73 45 59 -7 6 0 0.00 M M 2.1 8 360 M M 0 16 20
22 72 43 58 -8 7 0 0.00 M M 1.8 10 260 M M 0 1 17 330
23 69 54 62 -4 3 0 0.00 M M 1.5 8 20 M M 1 10 40
24 64 59 62 -3 3 0 0.02 M M 2.8 9 170 M M 10 1 13 130
25 74 60 67 2 0 2 0.15 M M 1.8 8 170 M M 9 1 13 140
26 77 58 68 4 0 3 0.00 M M 1.6 8 240 M M 10 12 12 240
27 79 58 69 5 0 4 0.01 M M 3.5 14 180 M M 3 1 20 180
28 79 56 68 4 0 3 1.27 M M 5.9 22 250 M M 6 123 30 250
29 62 48 55 -8 10 0 0.02 M M 3.3 16 310 M M 7 1 24 280
30 72 45 59 -4 6 0 0.00 M M 7.8 18 210 M M 0 1 31 220
================================================================================
SM 2347 1753 46 155 4.30 M 115.5 M 105
================================================================================
AV 78.2 58.4 3.9 FASTST M M 4 MAX(MPH)
MISC ----> # 26 280 # 42 280
================================================================================
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: SEPTEMBER
YEAR: 2020
LATITUDE: 37 4 N
LONGITUDE: 84 5 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 68.3 TOTAL FOR MONTH: 4.30 1 = FOG OR MIST
DPTR FM NORMAL: 0.0 DPTR FM NORMAL: 0.93 2 = FOG REDUCING VISIBILITY
HIGHEST: 88 ON 10 GRTST 24HR 1.43 ON 13-13 TO 1/4 MILE OR LESS
LOWEST: 43 ON 22 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: 9
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 6
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 4
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 2
[HDD (BASE 65) ]
TOTAL THIS MO. 46 CLEAR (SCALE 0-3) 15
DPTR FM NORMAL 0 PTCLDY (SCALE 4-7) 12
TOTAL FM JUL 1 46 CLOUDY (SCALE 8-10) 3
DPTR FM NORMAL -1
[CDD (BASE 65) ]
TOTAL THIS MO. 155
DPTR FM NORMAL 12 [PRESSURE DATA]
TOTAL FM JAN 1 1244 HIGHEST SLP 30.43 ON 21
DPTR FM NORMAL 77 LOWEST SLP 29.69 ON 28
[REMARKS]
#FINAL-09-20#
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