WFO Monthly/Daily Climate Data
Issued by NWS Knoxville/Tri Cities, TN

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CXUS54 KMRX 011500
CF6CHA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CHATTANOOGA AIRPORT
                                          MONTH:     SEPTEMBER
                                          YEAR:      2021
                                          LATITUDE:   35  1 N
                                          LONGITUDE:  85 12 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  72  79   1   0  14 0.00  0.0    0  8.2 15 350   M    M   6        20 240
 2  83  66  75  -3   0  10 0.00  0.0    0  7.2 17 360   M    M   2        24 360
 3  85  64  75  -3   0  10 0.00  0.0    0  2.7 12 190   M    M   5        17 200
 4  86  64  75  -2   0  10 0.00  0.0    0  3.1 10 130   M    M   3        14 130
 5  86  62  74  -3   0   9 0.07  0.0    0  3.5 13 240   M    M   5 1      17 240
 6  86  66  76  -1   0  11 1.18  0.0    0  6.0 14  10   M    M   6 1      18  30
 7  86  62  74  -2   0   9 0.00  0.0    0  3.3 13 180   M    M   4        20 170
 8  90  72  81   5   0  16 0.00  0.0    0  4.8 15 260   M    M   6        21 310
 9  83  64  74  -2   0   9 0.00  0.0    0  8.3 20  10   M    M   4        28 360
10  82  58  70  -6   0   5 0.00  0.0    0  2.4 13  10   M    M   2        18 360
11  84  59  72  -4   0   7 0.00  0.0    0  1.9  9 180   M    M   2        14 210
12  85  63  74  -1   0   9 0.00  0.0    0  1.7  9 160   M    M   2 1      16 190
13  90  65  78   3   0  13 0.00  0.0    0  1.6  8  50   M    M   3 1      12  40
14  90  67  79   4   0  14 0.00  0.0    0  2.3 14 210   M    M   5 1      17 190
15  80  69  75   1   0  10 0.03  0.0    0  2.1 18 190   M    M   7 18     24 200
16  80  69  75   1   0  10 0.16  0.0    0  3.7 13  80   M    M   8 18     18 160
17  82  69  76   2   0  11 0.00  0.0    0  3.1 10 130   M    M   8        14 110
18  81  72  77   4   0  12 0.86  0.0    0  3.3 13  20   M    M   8 13     15  30
19  76  71  74   1   0   9 2.26  0.0    0  3.5 10 200   M    M   9 1      14 350
20  74  69  72  -1   0   7 1.57  0.0    0  3.8 16 130   M    M   9 1      24 130
21  84  69  77   5   0  12 0.03  0.0    0  1.2 10 170   M    M   9 1      14 170
22  74  56  65  -7   0   0 0.51  0.0    0  8.4 21 320   M    M   7 1      27 300
23  73  53  63  -9   2   0 0.00  0.0    0  5.6 14 330   M    M   2        21 290
24  74  48  61 -10   4   0 0.00  0.0    0  2.9 13 360   M    M   1        19 360
25  79  50  65  -6   0   0 0.00  0.0    0  1.1  9  30   M    M   3        14  40
26  80  56  68  -3   0   3 0.00  0.0    0  1.5  7 330   M    M   3 12     10 350
27  82  57  70   0   0   5 0.00  0.0    0  1.3 10 170   M    M   1 1      14 140
28  85  58  72   2   0   7 0.00  0.0    0  0.5  8 360   M    M   2 1      10 360
29  86  62  74   4   0   9 0.00  0.0    0  2.8 13  30   M    M   4 1      17  50
30  83  62  73   4   0   8 0.00  0.0    0  1.3  8 170   M    M   5 1      11 170
================================================================================
SM 2475 1894         6 249  6.67  0.0    103.1          M      141
================================================================================
AV 82.5 63.1                               3.4 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->    21 320                 28 360
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   CHATTANOOGA AIRPORT
                                          MONTH:     SEPTEMBER
                                          YEAR:      2021
                                          LATITUDE:   35  1 N
                                          LONGITUDE:  85 12 W

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

AVERAGE MONTHLY: 72.8   TOTAL FOR MONTH:   6.67    1 = FOG OR MIST
DPTR FM NORMAL:  -1.1   DPTR FM NORMAL:    2.44    2 = FOG REDUCING VISIBILITY
HIGHEST:    90 ON 14,13  GRTST 24HR  3.20 ON 19-20      TO 1/4 MILE OR LESS
LOWEST:     48 ON 24                               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:   9
MAX 90 OR ABOVE:   3    0.10 INCH OR MORE:   6
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   5
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   3

[HDD (BASE 65) ]
TOTAL THIS MO.     6    CLEAR  (SCALE 0-3)  11
DPTR FM NORMAL    -1    PTCLDY (SCALE 4-7)  16
TOTAL FM JUL 1     6    CLOUDY (SCALE 8-10)  3
DPTR FM NORMAL     1

[CDD (BASE 65) ]
TOTAL THIS MO.   249
DPTR FM NORMAL   -27    [PRESSURE DATA]
TOTAL FM JAN 1  1810    HIGHEST SLP 30.30 ON 12
DPTR FM NORMAL   -39    LOWEST  SLP 29.61 ON  1

[REMARKS]
#FINAL-09-21#


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