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000
CXUS55 KSEW 010930
CF6SEA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   SEATTLE-TACOMA WA AIRPORT
                                          MONTH:     SEPTEMBER
                                          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  72  48  60  -6   5   0 0.00  0.0    0  7.1 15 350   M    M   1        23 360
 2  78  50  64  -2   1   0 0.00  0.0    0  4.6 13 350   M    M   1        18 360
 3  79  53  66   1   0   1 0.00  0.0    0  4.7 10  10   M    M   5        14 290
 4  79  52  66   1   0   1 0.00  0.0    0  7.0 15 220   M    M   7        20 200
 5  79  62  71   6   0   6 0.00  0.0    0  5.6 13 230   M    M   9        20 230
 6  75  60  68   3   0   3 0.00  0.0    0  7.4 15  10   M    M   5        18  20
 7  81  55  68   3   0   3 0.00  0.0    0  6.7 13 350   M    M   6        19  10
 8  80  60  70   6   0   5    T  0.0    0  7.3 22  80   M    M   5        27  80
 9  80  58  69   5   0   4 0.00  0.0    0  5.7 15 220   M    M   5        20 230
10  66  58  62  -2   3   0 0.00  0.0    0  6.8 13 230   M    M   8        19 230
11  72  56  64   0   1   0    T  0.0    0  6.6 14 200   M    M   8 18     19 200
12  67  56  62  -2   3   0 0.02  0.0    0  6.6 16  40   M    M   9 1      21  30
13  69  53  61  -2   4   0 0.00  0.0    0  6.6 14  40   M    M   6        18  40
14  69  50  60  -3   5   0    T  0.0    0  6.7 14 240   M    M   7        19 240
15  65  53  59  -4   6   0 0.13  0.0    0  6.8 15  20   M    M   9 1      19  20
16  66  47  57  -6   8   0 0.00  0.0    0  4.8 14 280   M    M   5        19 290
17  69  53  61  -1   4   0 0.58  0.0    0  8.9 23 250   M    M  10 1      36 250
18  64  52  58  -4   7   0 0.81  0.0    0  9.9 23 160   M    M   9 1      30 160
19  64  51  58  -4   7   0    T  0.0    0 10.8 21 200   M    M   8        28 210
20  68  54  61  -1   4   0 0.00  0.0    0  6.3 12  30   M    M   6        16 290
21  75  49  62   1   3   0 0.00  0.0    0  4.8 12 310   M    M   2        17 320
22  66  54  60  -1   5   0 0.01  0.0    0  5.2 13 250   M    M   8        16 250
23  69  54  62   1   3   0 0.00  0.0    0  6.2 14  10   M    M   6 12     18 290
24  76  52  64   4   1   0 0.00  0.0    0  7.3 14  10   M    M   5 12     17 350
25  77  53  65   5   0   0 0.00  0.0    0  6.4 14 180   M    M   4 1      19 200
26  62  53  58  -2   7   0 0.48  0.0    0  8.7 18 140   M    M   9 18     25 140
27  60  51  56  -4   9   0 0.34  0.0    0 10.7 22 240   M    M   8 1      34 240
28  62  51  57  -2   8   0 0.05  0.0    0 13.3 24 210   M    M   8 1      39 200
29  59  51  55  -4  10   0 0.08  0.0    0  6.3 13 130   M    M  10 1      16 140
30  62  54  58  -1   7   0 0.52  0.0    0  8.2 16 230   M    M   9 1      24 260
================================================================================
SM 2110 1603       111  23  3.02  0.0    214.0          M      198
================================================================================
AV 70.3 53.4                               7.1 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->    24 210                 39 200
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

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

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

AVERAGE MONTHLY: 61.9   TOTAL FOR MONTH:   3.02    1 = FOG OR MIST
DPTR FM NORMAL:  -0.7   DPTR FM NORMAL:    1.41    2 = FOG REDUCING VISIBILITY
HIGHEST:    81 ON  7    GRTST 24HR  1.22 ON 17-18      TO 1/4 MILE OR LESS
LOWEST:     47 ON 16                               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:  10
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   6
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   3
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   111    CLEAR  (SCALE 0-3)   3
DPTR FM NORMAL     9    PTCLDY (SCALE 4-7)  17
TOTAL FM JUL 1   150    CLOUDY (SCALE 8-10) 10
DPTR FM NORMAL    -8

[CDD (BASE 65) ]
TOTAL THIS MO.    23
DPTR FM NORMAL    -7    [PRESSURE DATA]
TOTAL FM JAN 1   377    HIGHEST SLP M ON M
DPTR FM NORMAL   114    LOWEST  SLP 29.50 ON 17

[REMARKS]
#FINAL-09-21#