A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >
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 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 98 09/10/2019
LOW 34 09/24/1989
HIGHEST 87 09/03 89 -2 91 09/21
09/04
09/06
LOWEST 51 09/14 42 9 43 09/28
AVG. MAXIMUM 78.9 79.0 -0.1 77.7
AVG. MINIMUM 60.2 59.1 1.1 58.8
MEAN 69.5 69.1 0.4 68.2
DAYS MAX >= 90 0 2.1 -2.1 1
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 1.83 3.42 -1.59 1.31
DAILY AVG. 0.06 0.11 -0.05 0.04
DAYS >= .01 6 8.2 -2.2 10
DAYS >= .10 4 5.6 -1.6 4
DAYS >= .50 2 2.2 -0.2 0
DAYS >= 1.00 0 1.0 -1.0 0
GREATEST
24 HR. TOTAL 1.21 09/16 TO 09/17 0.69
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 T 0.0 0.0 MM
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0
24 HR TOTAL MM MM
DEGREE DAYS
HEATING TOTAL 6 39 -33 48
SINCE 7/1 7 40 -33 48
COOLING TOTAL 149 161 -12 153
SINCE 1/1 1056 1195 -139 1367
................................................................
WIND (MPH)
AVERAGE WIND SPEED 0.8
HIGHEST WIND SPEED/DIRECTION 12/240 DATE 09/06
HIGHEST GUST SPEED/DIRECTION 24/260 DATE 09/06
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.31
NUMBER OF DAYS FAIR 18
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 3
AVERAGE RH (PERCENT) 78
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 4
LIGHT RAIN 9 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 19 FOG W/VIS <= 1/4 MILE 10
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: SEPTEMBER
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 86 58 72 -1 0 7 0.00 0.0 0 0.9 6 310 M M 0 10 170
2 86 65 76 3 0 11 0.00 0.0 0 1.5 7 310 M M 0 1 11 290
3 87 66 77 4 0 12 0.00 0.0 0 0.4 5 340 M M 0 8 340
4 87 67 77 5 0 12 0.00 0.0 0 0.5 6 160 M M 1 9 170
5 86 69 78 6 0 13 0.00 0.0 0 0.6 6 280 M M 0 11 270
6 87 69 78 6 0 13 0.39 0.0 0 1.9 12 240 M M 1 123 24 260
7 81 68 75 3 0 10 T 0.0 0 1.5 9 310 M M 6 18 270
8 81 63 72 1 0 7 0.00 0.0 0 1.1 7 340 M M 6 12 11 350
9 79 65 72 1 0 7 0.00 0.0 0 0.0 6 130 M M 7 1 11 40
10 79 65 72 1 0 7 T 0.0 0 0.3 7 310 M M 8 1 10 290
11 81 62 72 1 0 7 0.00 0.0 0 0.6 6 140 M M 4 12 10 140
12 76 65 71 1 0 6 0.04 0.0 0 1.7 8 320 M M 3 13 13 300
13 78 61 70 0 0 5 0.00 0.0 0 1.9 10 310 M M 4 12 14 320
14 77 51 64 -6 1 0 0.00 0.0 0 0.1 8 140 M M 0 18 17 70
15 78 55 67 -2 0 2 0.00 0.0 0 0.6 5 160 M M 1 11 60
16 79 56 68 -1 0 3 0.63 0.0 0 0.0 6 160 M M 6 1 10 160
17 72 57 65 -4 0 0 0.58 0.0 0 2.0 10 300 M M 8 12 20 320
18 73 55 64 -4 1 0 0.00 0.0 0 0.6 6 300 M M 6 12 10 310
19 75 54 65 -3 0 0 0.00 0.0 0 0.6 6 140 M M 3 12 10 130
20 79 53 66 -2 0 1 0.00 0.0 0 1.3 6 150 M M 1 1 9 140
21 80 58 69 2 0 4 0.00 0.0 0 0.3 7 140 M M 0 13 120
22 81 59 70 3 0 5 0.00 0.0 0 0.3 6 320 M M 1 13 320
23 75 55 65 -2 0 0 0.00 0.0 0 0.5 8 340 M M 0 12 350
24 65 59 62 -4 3 0 0.00 0.0 0 0.3 5 120 M M 9 8 360
25 76 57 67 1 0 2 0.00 0.0 0 0.0 6 140 M M 4 1 10 120
26 79 57 68 2 0 3 0.00 0.0 0 0.8 7 330 M M 1 12 10 330
27 69 59 64 -1 1 0 0.01 0.0 0 1.3 6 120 M M 4 12 10 110
28 74 59 67 2 0 2 0.18 0.0 0 1.9 8 170 M M 5 123 14 270
29 81 58 70 5 0 5 T 0.0 0 0.5 7 300 M M 3 10 310
30 80 60 70 6 0 5 0.00 0.0 0 0.4 7 130 M M 1 1 9 170
================================================================================
SM 2367 1805 6 149 1.83 0.0 24.4 M 93
================================================================================
AV 78.9 60.2 0.8 FASTST M M 3 MAX(MPH)
MISC ----> 12 240 24 260
================================================================================
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: 2023
LATITUDE: 37 35 N
LONGITUDE: 83 19 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 69.5 TOTAL FOR MONTH: 1.83 1 = FOG OR MIST
DPTR FM NORMAL: 0.4 DPTR FM NORMAL: -1.59 2 = FOG REDUCING VISIBILITY
HIGHEST: 87 ON 6, 4 GRTST 24HR 1.21 ON 16-17 TO 1/4 MILE OR LESS
LOWEST: 51 ON 14 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: 6
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 4
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 2
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 6 CLEAR (SCALE 0-3) 17
DPTR FM NORMAL -33 PTCLDY (SCALE 4-7) 12
TOTAL FM JUL 1 7 CLOUDY (SCALE 8-10) 1
DPTR FM NORMAL -33
[CDD (BASE 65) ]
TOTAL THIS MO. 149
DPTR FM NORMAL -12 [PRESSURE DATA]
TOTAL FM JAN 1 1056 HIGHEST SLP 30.24 ON 21
DPTR FM NORMAL -139 LOWEST SLP 29.81 ON 7
[REMARKS]
#FINAL-09-23#
...THE LONDON KY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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 97 09/05/2007
LOW 32 09/24/1983
HIGHEST 89 09/04 MM MM 90 09/21
09/05
LOWEST 50 09/18 MM MM 38 09/28
AVG. MAXIMUM 81.4 80.0 1.4 78.0
AVG. MINIMUM 57.6 57.6 0.0 56.1
MEAN 69.5 68.8 0.7 67.0
DAYS MAX >= 90 0 3.0 -3.0 1
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 1.70 3.55 -1.85 2.09
DAILY AVG. 0.06 0.12 -0.06 0.07
DAYS >= .01 7 8.3 -1.3 9
DAYS >= .10 4 5.5 -1.5 4
DAYS >= .50 1 2.1 -1.1 1
DAYS >= 1.00 1 1.0 0.0 1
GREATEST
24 HR. TOTAL 1.34 09/27 TO 09/28 1.06
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
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 3 38 -35 59
SINCE 7/1 3 39 -36 59
COOLING TOTAL 147 152 -5 129
SINCE 1/1 1041 1192 -151 1285
................................................................
WIND (MPH)
AVERAGE WIND SPEED 2.7
HIGHEST WIND SPEED/DIRECTION 17/270 DATE 09/17
HIGHEST GUST SPEED/DIRECTION 24/270 DATE 09/07
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.30
NUMBER OF DAYS FAIR 18
NUMBER OF DAYS PC 11
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 75
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 4 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 3
LIGHT RAIN 7 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 22 FOG W/VIS <= 1/4 MILE 8
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: LONDON KY
MONTH: SEPTEMBER
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 87 56 72 -1 0 7 0.00 M M 1.7 9 190 M M 0 13 50
2 87 62 75 2 0 10 0.00 M M 1.4 13 260 M M 1 1 16 270
3 88 61 75 2 0 10 0.00 M M 1.2 8 130 M M 1 1 11 140
4 89 63 76 4 0 11 0.00 M M 1.1 8 260 M M 1 1 11 260
5 89 65 77 5 0 12 0.00 M M 2.4 13 260 M M 0 18 250
6 87 65 76 4 0 11 0.02 M M 4.2 15 260 M M 5 12 20 270
7 81 68 75 3 0 10 0.03 M M 4.1 16 270 M M 7 13 24 270
8 82 62 72 1 0 7 0.00 M M 2.8 10 30 M M 6 1 15 350
9 84 65 75 4 0 10 0.00 M M 5.1 13 70 M M 7 3 21 80
10 81 64 73 2 0 8 0.00 M M 4.4 12 20 M M 5 19 40
11 85 60 73 3 0 8 0.00 M M 1.2 8 250 M M 3 12 12 190
12 79 63 71 1 0 6 0.02 M M 2.4 10 340 M M 5 1 15 340
13 80 57 69 -1 0 4 0.00 M M 3.5 13 340 M M 5 12 16 20
14 80 51 66 -4 0 1 0.00 M M 5.0 15 10 M M 0 21 40
15 81 54 68 -1 0 3 0.00 M M 3.7 10 40 M M 0 15 30
16 79 55 67 -2 0 2 0.12 M M 2.9 15 220 M M 7 1 23 230
17 75 55 65 -3 0 0 0.17 M M 5.2 17 270 M M 8 12 22 290
18 75 50 63 -5 2 0 0.00 M M 1.8 9 310 M M 4 12 13 250
19 78 52 65 -3 0 0 0.00 M M 1.4 7 100 M M 4 12 12 260
20 80 52 66 -1 0 1 0.00 M M 2.2 13 190 M M 2 1 18 180
21 82 53 68 1 0 3 0.00 M M 0.9 9 40 M M 2 1 12 20
22 84 55 70 3 0 5 0.00 M M 2.7 12 30 M M 1 1 22 30
23 79 55 67 1 0 2 0.00 M M 5.3 13 340 M M 0 18 350
24 78 52 65 -1 0 0 0.00 M M 3.4 12 20 M M 2 16 30
25 82 56 69 3 0 4 0.00 M M 1.6 10 20 M M 1 1 16 20
26 85 53 69 4 0 4 0.00 M M 1.8 9 90 M M 1 1 14 90
27 69 58 64 -1 1 0 1.19 M M 2.3 12 350 M M 3 13 18 360
28 74 57 66 2 0 1 0.15 M M 3.2 13 290 M M 5 13 21 290
29 81 54 68 4 0 3 0.00 M M 1.4 8 260 M M 3 12 11 280
30 82 55 69 5 0 4 0.00 M M 1.7 10 30 M M 2 12 15 30
================================================================================
SM 2443 1728 3 147 1.70 M 82.0 M 91
================================================================================
AV 81.4 57.6 2.7 FASTST M M 3 MAX(MPH)
MISC ----> 17 270 24 270
================================================================================
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: SEPTEMBER
YEAR: 2023
LATITUDE: 37 4 N
LONGITUDE: 84 5 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 69.5 TOTAL FOR MONTH: 1.70 1 = FOG OR MIST
DPTR FM NORMAL: 0.7 DPTR FM NORMAL: -1.85 2 = FOG REDUCING VISIBILITY
HIGHEST: 89 ON 5, 4 GRTST 24HR 1.34 ON 27-28 TO 1/4 MILE OR LESS
LOWEST: 50 ON 18 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: 0 0.50 INCH OR MORE: 1
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1
[HDD (BASE 65) ]
TOTAL THIS MO. 3 CLEAR (SCALE 0-3) 18
DPTR FM NORMAL -35 PTCLDY (SCALE 4-7) 11
TOTAL FM JUL 1 3 CLOUDY (SCALE 8-10) 1
DPTR FM NORMAL -34
[CDD (BASE 65) ]
TOTAL THIS MO. 147
DPTR FM NORMAL -5 [PRESSURE DATA]
TOTAL FM JAN 1 1041 HIGHEST SLP 30.25 ON 21
DPTR FM NORMAL -151 LOWEST SLP 29.83 ON 7
[REMARKS]
#FINAL-09-23#
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