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

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CXUS54 KMRX 031510
CF6TRI
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   TRI-CITIES AIRPORT
                                          MONTH:     DECEMBER
                                          YEAR:      2020
                                          LATITUDE:   36 28 N
                                          LONGITUDE:  82 24 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  33  29  31 -10  34   0 0.03  0.2    0 12.9 20 260   M    M  10 18     27 250
 2  41  23  32  -9  33   0 0.00  0.0    0  4.7 15 230   M    M   3        19 190
 3  53  19  36  -5  29   0 0.00  0.0    0  0.7  7 300   M    M   4 1       9 310
 4  48  36  42   2  23   0 0.56  0.0    0  2.9 17 280   M    M  10 1      22 280
 5  47  28  38  -2  27   0    T    T    0  7.7 17 250   M    M   7 1      28 250
 6  51  25  38  -2  27   0    T  0.0    0  0.7  9 310   M    M   6 12     11 300
 7  40  32  36  -4  29   0 0.15    T    0  6.0 17 350   M    M  10 1      24 350
 8  37  26  32  -7  33   0 0.00  0.0    0  5.0 12 270   M    M   7        19 310
 9  49  22  36  -3  29   0 0.00  0.0    0  3.2 17 250   M    M   5 1      23 270
10  60  25  43   4  22   0 0.00  0.0    0  0.6  5 240   M    M   5 128     7 100
11  64  29  47   8  18   0 0.00  0.0    0  0.4  7 330   M    M   4 1       9 340
12  67  37  52  14  13   0 0.04  0.0    0  5.1 20 210   M    M   9 1      34 250
13  59  42  51  13  14   0 0.00  0.0    0  3.2 14 260   M    M   6 12     19 260
14  46  33  40   2  25   0 0.98  0.0    0  4.8 17 340   M    M   9 1      26 330
15  49  27  38   0  27   0 0.00  0.0    0  2.2  8  60   M    M   4        12  50
16  44  33  39   1  26   0 0.28  0.0    0  3.4 12 320   M    M   9 1      16  70
17  41  31  36  -1  29   0    T    T    0  8.1 15 260   M    M  10 1      19 260
18  37  24  31  -6  34   0 0.00  0.0    0  3.0 12 270   M    M   9        16 270
19  47  21  34  -3  31   0 0.00  0.0    0  0.8  7 310   M    M   7 1       8 300
20  48  34  41   4  24   0    T  0.0    0  1.2  8 230   M    M   9        10 230
21  52  35  44   7  21   0 0.05  0.0    0  9.9 21 250   M    M   5 1      30 250
22  49  26  38   2  27   0 0.00  0.0    0  8.0 22 250   M    M   1        31 240
23  58  24  41   5  24   0 0.01  0.0    0  4.4 16 150   M    M   5        24 150
24  56  25  41   5  24   0 1.34  3.7    4  7.1 36 270   M    M  10 18     45 270
25  25  12  19 -17  46   0 0.02  0.7    3 12.1 22 230   M    M   8 18     30 270
26  30   6  18 -18  47   0 0.00  0.0    4  3.2 10 230   M    M   2        12 230
27  45  12  29  -7  36   0 0.00  0.0    3  0.9  6 350   M    M   4         7  10
28  42  27  35  -1  30   0    T  0.0    1  0.4  6 350   M    M   9 1       6 360
29  49  27  38   2  27   0 0.00  0.0    0  1.3  6  50   M    M   5 12      9  60
30  58  31  45  10  20   0 0.00  0.0    0  4.1 16 180   M    M   6        23 180
31  56  35  46  11  19   0 0.06  0.0    0  0.8  8 340   M    M   8 1      10 340
================================================================================
SM 1481  836       848   0  3.52  4.6    128.8          M      206
================================================================================
AV 47.8 27.0                               4.2 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->    36 270                 45 270
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   TRI-CITIES AIRPORT
                                          MONTH:     DECEMBER
                                          YEAR:      2020
                                          LATITUDE:   36 28 N
                                          LONGITUDE:  82 24 W

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

AVERAGE MONTHLY: 37.4   TOTAL FOR MONTH:   3.52    1 = FOG OR MIST
DPTR FM NORMAL:  -0.4   DPTR FM NORMAL:    0.15    2 = FOG REDUCING VISIBILITY
HIGHEST:    67 ON 12    GRTST 24HR  1.35 ON 23-24      TO 1/4 MILE OR LESS
LOWEST:      6 ON 26                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   4.6 INCHES  5 = HAIL
                        GRTST 24HR   3.7 ON 24-24  6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   4 ON 26,24  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:   2    0.01 INCH OR MORE:  11
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   5
MIN 32 OR BELOW:  23    0.50 INCH OR MORE:   3
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   848    CLEAR  (SCALE 0-3)   2
DPTR FM NORMAL     5    PTCLDY (SCALE 4-7)  18
TOTAL FM JUL 1  1506    CLOUDY (SCALE 8-10) 11
DPTR FM NORMAL  -224

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1  1223    HIGHEST SLP 30.51 ON 29
DPTR FM NORMAL   242    LOWEST  SLP 29.44 ON 24

[REMARKS]
#FINAL-12-20#


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