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

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CXUS54 KMRX 011130
CF6CHA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CHATTANOOGA AIRPORT
                                          MONTH:     DECEMBER
                                          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  67  35  51   4  14   0 0.00  0.0    0  3.2 13 170   M    M   4 8      19 170
 2  73  40  57  10   8   0 0.00  0.0    0  3.1 15 240   M    M   3 1      20 220
 3  75  40  58  12   7   0 0.00  0.0    0  2.3 10 230   M    M   3 1      14 230
 4  70  45  58  12   7   0 0.00  0.0    0  0.5  7 220   M    M   6 1       9 220
 5  61  50  56  10   9   0 0.16  0.0    0  2.9 10 140   M    M   8 18     16 150
 6  63  39  51   5  14   0 0.41  0.0    0 10.3 21 350   M    M   7 13     29 340
 7  45  33  39  -7  26   0 0.00  0.0    0  7.4 16  20   M    M   5        22 360
 8  58  36  47   1  18   0 0.00  0.0    0  3.7 13 350   M    M   5 1      18 340
 9  59  31  45   0  20   0 0.00  0.0    0  5.9 17 200   M    M   6        23 200
10  58  49  54   9  11   0 0.02  0.0    0  5.8 15 190   M    M  10 1      21 210
11  71  43  57  12   8   0 0.64  0.0    0 11.7 24 250   M    M   8 13     42 230
12  52  33  43  -2  22   0 0.00  0.0    0  7.2 20 340   M    M   1        25 360
13  61  29  45   0  20   0 0.00  0.0    0  0.6  9 210   M    M   0        12 160
14  63  30  47   3  18   0 0.00  0.0    0  1.2 14  10   M    M   2 12     17  10
15  61  34  48   4  17   0 0.00  0.0    0  4.8 16 180   M    M   4        23 180
16  71  45  58  14   7   0 0.09  0.0    0  6.6 18 180   M    M   7 1      26 190
17  67  55  61  17   4   0 0.40  0.0    0  3.7 10 200   M    M   9 18     14 170
18  73  55  64  20   1   0 0.61  0.0    0  5.9 20 280   M    M   9 13     31 290
19  55  38  47   3  18   0 0.05  0.0    0 12.3 20  10   M    M  10        25 360
20  51  36  44   0  21   0 0.00  0.0    0  4.6 14  20   M    M   8        19  20
21  47  38  43   0  22   0 0.02  0.0    0  1.8 10  10   M    M   7 1      13  10
22  52  31  42  -1  23   0 0.00  0.0    0  5.3 21 360   M    M   2 12     24 350
23  59  28  44   1  21   0 0.00  0.0    0  3.1 15 190   M    M   1 1      19 190
24  62  33  48   5  17   0 0.00  0.0    0  5.7 17 180   M    M   6        25 170
25  68  60  64  21   1   0 0.00  0.0    0 11.4 24 210   M    M   9        31 200
26  75  48  62  19   3   0 0.00  0.0    0  1.5  9 210   M    M   5 12     12 190
27  70  51  61  18   4   0 0.00  0.0    0  7.5 18 210   M    M   7 1      27 210
28  72  58  65  23   0   0 0.01  0.0    0  7.5 20 190   M    M   8 1      29 190
29  71  59  65  23   0   0 1.84  0.0    0  5.2 22 300   M    M  10 13     30 290
30  70  54  62  20   3   0 0.01  0.0    0  2.0  9 190   M    M   7 12     12 210
31  67  53  60  18   5   0 0.46  0.0    0  2.2 10 180   M    M  10 123    15 160
================================================================================
SM 1967 1309       369   0  4.72  0.0    156.9          M      187
================================================================================
AV 63.5 42.2                               5.1 FASTST   M    M   6    MAX(MPH)
                                 MISC ---->  # 24 250                 42 230
================================================================================
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:     DECEMBER
                                          YEAR:      2021
                                          LATITUDE:   35  1 N
                                          LONGITUDE:  85 12 W

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

AVERAGE MONTHLY: 52.8   TOTAL FOR MONTH:   4.72    1 = FOG OR MIST
DPTR FM NORMAL:   8.5   DPTR FM NORMAL:   -0.53    2 = FOG REDUCING VISIBILITY
HIGHEST:    75 ON 26, 3  GRTST 24HR  1.84 ON 29-29      TO 1/4 MILE OR LESS
LOWEST:     28 ON 23                               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:  13
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   7
MIN 32 OR BELOW:   5    0.50 INCH OR MORE:   3
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   369    CLEAR  (SCALE 0-3)   7
DPTR FM NORMAL  -275    PTCLDY (SCALE 4-7)  16
TOTAL FM JUL 1   952    CLOUDY (SCALE 8-10)  8
DPTR FM NORMAL  -255

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL    -1    [PRESSURE DATA]
TOTAL FM JAN 1  1937    HIGHEST SLP 30.51 ON 14
DPTR FM NORMAL    17    LOWEST  SLP 29.77 ON 28

[REMARKS]
#FINAL-12-21#


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