WFO Monthly/Daily Climate Data
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CXUS55 KSEW 020053
CF6SEA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   SEATTLE-TACOMA WA AIRPORT
                                          MONTH:     MAY
                                          YEAR:      2021
                                          LATITUDE:   47 27 N
                                          LONGITUDE: 122 18 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  61  47  54   0  11   0 0.03  0.0    0  6.2 12 200   M    M   9 1      17 230
 2  62  48  55   0  10   0 0.00  0.0    0  5.0 10 250   M    M   7        15 250
 3  57  46  52  -3  13   0 0.25  0.0    0  6.8 12 140   M    M   9 1      19 190
 4  63  50  57   2   8   0 0.03  0.0    0  7.3 15  30   M    M   7 12     18  30
 5  71  45  58   3   7   0 0.00  0.0    0  7.1 14  20   M    M   7        17  30
 6  68  48  58   2   7   0    T  0.0    0 11.6 22 240   M    M   8 3      29 230
 7  59  46  53  -3  12   0    T  0.0    0  8.4 18 220   M    M   8        22 220
 8  59  44  52  -4  13   0    T  0.0    0  8.6 15 190   M    M   9        20 200
 9  64  48  56   0   9   0 0.10  0.0    0  5.5 15 310   M    M   7 18     19 300
10  67  44  56   0   9   0 0.00  0.0    0  7.0 15  30   M    M   5        22 350
11  70  46  58   1   7   0 0.00  0.0    0  7.9 17  10   M    M   4        23  10
12  71  55  63   6   2   0 0.00  0.0    0  8.8 18 350   M    M   7        21 340
13  73  48  61   4   4   0 0.00  0.0    0  7.9 20 350   M    M   5 128    23 350
14  75  50  63   6   2   0 0.00  0.0    0  7.3 16  30   M    M   2        23 330
15  75  49  62   4   3   0 0.00  0.0    0  7.3 16 360   M    M   2        21 350
16  77  50  64   6   1   0 0.00  0.0    0  5.4 12 210   M    M   2        14 200
17  62  49  56  -2   9   0 0.07  0.0    0 11.0 23 220   M    M   9 1      30 210
18  61  45  53  -5  12   0 0.07  0.0    0 13.6 25 220   M    M   6 3      37 210
19  58  45  52  -6  13   0 0.00  0.0    0  7.8 16 310   M    M   7        23 270
20  61  44  53  -5  12   0 0.01  0.0    0  6.2 13 240   M    M   7 1      15 250
21  62  45  54  -5  11   0 0.00  0.0    0  6.3 12 230   M    M   6        15 260
22  62  47  55  -4  10   0 0.00  0.0    0  4.6 13 200   M    M   8 1      15 190
23  64  51  58  -1   7   0    T  0.0    0 10.8 21 210   M    M  10 1      27 220
24  60  49  55  -4  10   0 0.13  0.0    0  9.2 17 200   M    M   9 1      21 170
25  63  51  57  -2   8   0 0.00  0.0    0  8.9 16 240   M    M   7        27 220
26  63  50  57  -2   8   0 0.00  0.0    0  7.0 13 230   M    M   9        21 250
27  60  49  55  -4  10   0 0.43  0.0    0 13.3 26 240   M    M   9 13     35 210
28  64  49  57  -3   8   0 0.00  0.0    0  9.4 18 210   M    M   6        26 190
29  72  47  60   0   5   0 0.00  0.0    0  9.4 16  30   M    M   4        19  20
30  73  52  63   3   2   0 0.00  0.0    0  7.1 15 340   M    M   6        18 340
31  80  54  67   7   0   2 0.00  0.0    0  7.7 20 340   M    M   6        26 340
================================================================================
SM 2037 1491       243   2  1.12  0.0    250.4          M      207
================================================================================
AV 65.7 48.1                               8.1 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->    26 240                 37 210
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   SEATTLE-TACOMA WA AIRPORT
                                          MONTH:     MAY
                                          YEAR:      2021
                                          LATITUDE:   47 27 N
                                          LONGITUDE: 122 18 W

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

AVERAGE MONTHLY: 56.9   TOTAL FOR MONTH:   1.12    1 = FOG OR MIST
DPTR FM NORMAL:  -0.6   DPTR FM NORMAL:   -0.76    2 = FOG REDUCING VISIBILITY
HIGHEST:    80 ON 31    GRTST 24HR  0.43 ON 27-27      TO 1/4 MILE OR LESS
LOWEST:     44 ON 20,10                             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:   9
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   4
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   243    CLEAR  (SCALE 0-3)   3
DPTR FM NORMAL     1    PTCLDY (SCALE 4-7)  18
TOTAL FM JUL 1  4090    CLOUDY (SCALE 8-10) 10
DPTR FM NORMAL  -168

[CDD (BASE 65) ]
TOTAL THIS MO.     2
DPTR FM NORMAL    -7    [PRESSURE DATA]
TOTAL FM JAN 1     2    HIGHEST SLP 30.40 ON  8
DPTR FM NORMAL    -8    LOWEST  SLP 29.83 ON  6

[REMARKS]
#FINAL-05-21#
CORRECTED SNOW DEPTH ON 31ST


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