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

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CXUS54 KMRX 011030
CF6CHA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CHATTANOOGA AIRPORT
                                          MONTH:     MAY
                                          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  80  50  65  -1   0   0 0.00  0.0    0  4.9 14 360   M    M   4        19  30
 2  77  51  64  -2   1   0 0.01  0.0    0  3.1 13 170   M    M   6        19 180
 3  85  67  76   9   0  11 0.20  0.0    0  9.5 22 210   M    M   7 1      29 210
 4  73  64  69   2   0   4 1.41  0.0    0  6.2 31 340   M    M   9 13     43 340
 5  74  52  63  -4   2   0 0.00  0.0    0  7.2 18 320   M    M   5 1      24 320
 6  75  48  62  -5   3   0    T  0.0    0  4.8 23 280   M    M   3 18     33 280
 7  71  51  61  -7   4   0 0.00  0.0    0  7.6 21 340   M    M   3        29 340
 8  72  48  60  -8   5   0 0.00  0.0    0  2.7 12 240   M    M   5        20 290
 9  84  50  67  -1   0   2 0.91  0.0    0  7.4 24 170   M    M   6 138    37 160
10  76  58  67  -1   0   2 0.01  0.0    0  6.5 16 360   M    M   7        22 360
11  71  54  63  -6   2   0 0.00  0.0    0  7.0 16  10   M    M   8        20 350
12  69  55  62  -7   3   0 0.05  0.0    0 10.7 23  10   M    M   8 1      31  20
13  73  49  61  -8   4   0 0.00  0.0    0  4.1 13  30   M    M   4        18  40
14  76  47  62  -8   3   0 0.00  0.0    0  1.4  7 100   M    M   3        10 180
15  78  50  64  -6   1   0 0.00  0.0    0  3.1 14 160   M    M   4        18 150
16  80  58  69  -1   0   4    T  0.0    0  1.9 12 240   M    M   6        18 220
17  80  56  68  -2   0   3 0.00  0.0    0  3.9 14 120   M    M   6        21  70
18  78  66  72   2   0   7 0.00  0.0    0  7.1 18 130   M    M   7        28 130
19  84  67  76   5   0  11 0.00  0.0    0  7.2 17 160   M    M   6        25 120
20  84  63  74   3   0   9 0.00  0.0    0  7.1 16 130   M    M   4        26 160
21  87  58  73   2   0   8 0.00  0.0    0  4.8 16 160   M    M   5        24 160
22  88  60  74   2   0   9 0.00  0.0    0  2.6 12  10   M    M   5        19  10
23  91  64  78   6   0  13 0.00  0.0    0  2.5 14  10   M    M   4        20  10
24  93  63  78   6   0  13 0.00  0.0    0  2.2  9  20   M    M   5        13 360
25  93  65  79   7   0  14 0.00  0.0    0  2.5 15 280   M    M   3        23 260
26  91  67  79   6   0  14    T  0.0    0  5.8 17 240   M    M   4        25 250
27  88  69  79   6   0  14 0.00  0.0    0  5.1 14 230   M    M   5        20 200
28  87  70  79   6   0  14 0.03  0.0    0  7.5 23 210   M    M   7 18     32 210
29  74  57  66  -8   0   1 0.00  0.0    0 11.1 20  10   M    M   8        27  10
30  74  56  65  -9   0   0 0.00  0.0    0 10.6 17 360   M    M   5        28  20
31  83  52  68  -6   0   3 0.00  0.0    0  4.2 13 200   M    M   4        18 170
================================================================================
SM 2489 1785        28 156  2.62  0.0    172.3          M      166
================================================================================
AV 80.3 57.6                               5.6 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->    31 340                 43 340
================================================================================
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:     MAY
                                          YEAR:      2021
                                          LATITUDE:   35  1 N
                                          LONGITUDE:  85 12 W

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

AVERAGE MONTHLY: 68.9   TOTAL FOR MONTH:   2.62    1 = FOG OR MIST
DPTR FM NORMAL:  -1.1   DPTR FM NORMAL:   -1.32    2 = FOG REDUCING VISIBILITY
HIGHEST:    93 ON 25,24  GRTST 24HR  1.41 ON  4- 4      TO 1/4 MILE OR LESS
LOWEST:     47 ON 14                               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:   7
MAX 90 OR ABOVE:   4    0.10 INCH OR MORE:   3
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   2
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.    28    CLEAR  (SCALE 0-3)   3
DPTR FM NORMAL    -2    PTCLDY (SCALE 4-7)  27
TOTAL FM JUL 1  2626    CLOUDY (SCALE 8-10)  1
DPTR FM NORMAL  -399

[CDD (BASE 65) ]
TOTAL THIS MO.   156
DPTR FM NORMAL   -29    [PRESSURE DATA]
TOTAL FM JAN 1   210    HIGHEST SLP 30.44 ON 22
DPTR FM NORMAL   -36    LOWEST  SLP 29.71 ON  3

[REMARKS]
#FINAL-05-21#


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