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

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000
CXUS54 KMRX 051305
CF6CHA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CHATTANOOGA AIRPORT
                                          MONTH:     APRIL
                                          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  52  38  45 -12  20   0 0.00  0.0    0 12.2 23 360   M    M   1        35 350
 2  55  33  44 -13  21   0 0.00  0.0    0  8.1 20 360   M    M   0        29  20
 3  66  31  49  -8  16   0 0.00  0.0    0  1.7  8 130   M    M   1        13 190
 4  75  37  56  -1   9   0 0.00  0.0    0  1.5 12 220   M    M   0        15 220
 5  80  43  62   4   3   0 0.00  0.0    0  2.0 10 250   M    M   1        14 220
 6  82  48  65   7   0   0 0.00  0.0    0  2.1 12 140   M    M   3        19 170
 7  82  52  67   9   0   2 0.00  0.0    0  3.5 15 180   M    M   6 8      22 190
 8  80  62  71  13   0   6 0.18  0.0    0  8.3 24 190   M    M   5 1      37 160
 9  83  54  69  10   0   4 0.00  0.0    0  3.9 28 190   M    M   5 3      38 200
10  74  61  68   9   0   3 0.14  0.0    0  7.2 20 200   M    M   7 18     26 180
11  75  55  65   6   0   0 0.00  0.0    0  8.7 23 220   M    M   1        29 230
12  84  48  66   6   0   1 0.00  0.0    0  3.5 17 280   M    M   2        23 290
13  83  51  67   7   0   2 0.00  0.0    0  1.5 13 360   M    M   5        15 360
14  79  53  66   6   0   1 0.01  0.0    0  4.2 16 240   M    M   7        24 240
15  71  49  60   0   5   0 0.00  0.0    0  8.7 17 360   M    M   5        24 360
16  67  46  57  -4   8   0 0.00  0.0    0  3.9 16 360   M    M   6        22  10
17  71  52  62   1   3   0    T  0.0    0  4.8 14 340   M    M   7        19  20
18  71  46  59  -2   6   0 0.00  0.0    0  4.3 15 280   M    M   5        20 270
19  71  48  60  -1   5   0 0.00  0.0    0  3.5 15 340   M    M   4        20 340
20  76  46  61  -1   4   0 0.00  0.0    0  3.8 17 210   M    M   3 1      25 230
21  58  39  49 -13  16   0    T  0.0    0 11.6 22 330   M    M   4        30 350
22  65  33  49 -13  16   0 0.00  0.0    0  3.8 16 240   M    M   2        23 310
23  68  43  56  -6   9   0    T  0.0    0  3.7 12  10   M    M   7        18 160
24  62  50  56  -7   9   0 1.17  0.0    0  4.9 16  10   M    M   9 1      21  10
25  70  51  61  -2   4   0 0.00  0.0    0  7.6 21 360   M    M   6        29 330
26  81  45  63   0   2   0 0.00  0.0    0  1.5 13 200   M    M   4 1      17 200
27  84  55  70   6   0   5 0.00  0.0    0  6.4 18 170   M    M   6 1      26 150
28  86  64  75  11   0  10 0.00  0.0    0  5.0 16 180   M    M   7        23 200
29  81  62  72   8   0   7 0.12  0.0    0  7.4 21 230   M    M   7 1      33 250
30  79  58  69   5   0   4 0.00  0.0    0  8.1 18 340   M    M   6        28 300
================================================================================
SM 2211 1453       156  45  1.62  0.0    157.4          M      132
================================================================================
AV 73.7 48.4                               5.2 FASTST   M    M   4    MAX(MPH)
                                 MISC ---->    28 190                 38 200
================================================================================
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:     APRIL
                                          YEAR:      2021
                                          LATITUDE:   35  1 N
                                          LONGITUDE:  85 12 W

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

AVERAGE MONTHLY: 61.1   TOTAL FOR MONTH:   1.62    1 = FOG OR MIST
DPTR FM NORMAL:   0.6   DPTR FM NORMAL:   -2.37    2 = FOG REDUCING VISIBILITY
HIGHEST:    86 ON 28    GRTST 24HR  1.17 ON 24-24      TO 1/4 MILE OR LESS
LOWEST:     31 ON  3                               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:   5
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   4
MIN 32 OR BELOW:   1    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   156    CLEAR  (SCALE 0-3)   9
DPTR FM NORMAL   -18    PTCLDY (SCALE 4-7)  20
TOTAL FM JUL 1  2598    CLOUDY (SCALE 8-10)  1
DPTR FM NORMAL  -603

[CDD (BASE 65) ]
TOTAL THIS MO.    45
DPTR FM NORMAL     6    [PRESSURE DATA]
TOTAL FM JAN 1    54    HIGHEST SLP 30.53 ON  2
DPTR FM NORMAL     8    LOWEST  SLP 29.58 ON 10

[REMARKS]
#FINAL-04-21#


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