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

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000
CXUS54 KMRX 171000
CF6CHA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CHATTANOOGA  ASOS
                                          MONTH:     DECEMBER
                                          YEAR:      2017
                                          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  66  46  56  10   9   0 0.00  0.0    0  4.4 10  10   M    M   7 18     17 350
 2  67  43  55   9  10   0 0.00  0.0    0  0.7  7 130   M    M   4 18     12 190
 3  66  38  52   7  13   0 0.00  0.0    0  2.2 13  10   M    M   7 12     16  50
 4  66  39  53   8  12   0 0.00  0.0    0  4.7 17 180   M    M   5 1      24 180
 5  60  42  51   6  14   0 0.86  0.0    0  6.8 16 350   M    M   9 18     20 340
 6  46  37  42  -2  23   0 0.00  0.0    0  6.9 20 360   M    M   7        23 360
 7  50  38  44   0  21   0 0.00  0.0    0  3.8 12 360   M    M   7        15 280
 8  39  31  35  -9  30   0 0.04  0.4    T  7.3 14 360   M    M  10 1      16 360
 9  43  30  37  -7  28   0 0.00  0.0    0  8.2 24 330   M    M   7        32 320
10  47  25  36  -8  29   0 0.00  0.0    0  5.0 16 220   M    M   1        19 220
11  59  28  44   1  21   0 0.00  0.0    0  2.9 13 190   M    M   0        16 190
12  48  30  39  -4  26   0 0.00  0.0    0 10.9 23 330   M    M   4        32 340
13  48  24  36  -7  29   0 0.00  0.0    0  5.8 18 320   M    M   1        24 160
14  55  27  41  -2  24   0 0.00  0.0    0  4.3 14 290   M    M   2        20 280
15  37  25  31 -11  34   0 0.00  0.0    0  5.6 13 290   M    M   5        17 330
16  50  23  37  -5  28   0 0.00  0.0    0  1.7 10 190   M    M   5 18     14 190
================================================================================
SM  847  526       351   0  0.90     0.4  81.2          M       81
================================================================================
AV 52.9 32.9                               5.1 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->  # 24 330               # 32  320
================================================================================
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  ASOS
                                          MONTH:    DECEMBER
                                          YEAR:     2017
                                          LATITUDE:   35  1 N
                                          LONGITUDE:  85 12 W

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

AVERAGE MONTHLY: 42.9   TOTAL FOR MONTH:   0.90    1 = FOG OR MIST
DPTR FM NORMAL:  -1.0   DPTR FM NORMAL:   -1.79    2 = FOG REDUCING VISIBILITY
HIGHEST:    67 ON  2    GRTST 24HR  0.86 ON  5- 5      TO 1/4 MILE OR LESS
LOWEST:     23 ON 16                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   0.4 INCH    5 = HAIL
                        GRTST 24HR   0.4 ON  8- 8  6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   T           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:   2
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   1
MIN 32 OR BELOW:   9    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   351    CLEAR  (SCALE 0-3)   4
DPTR FM NORMAL    13    PTCLDY (SCALE 4-7)  10
TOTAL FM JUL 1   862    CLOUDY (SCALE 8-10)  2
DPTR FM NORMAL   -65

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1  1965    HIGHEST SLP M ON M
DPTR FM NORMAL   224    LOWEST  SLP 29.81 ON 13

[REMARKS]



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