WFO Monthly/Daily Climate Data
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000
CXUS55 KSEW 190930
CF6SEA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   SEATTLE-TACOMA WA AIRPORT
                                          MONTH:     JANUARY
                                          YEAR:      2018
                                          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  44  31  38  -3  27   0 0.00  0.0    0  8.7 15  20   M    M   5 1      17  20
 2  44  34  39  -2  26   0 0.00  0.0    0  7.8 15  30   M    M   8        18  20
 3  49  33  41   0  24   0 0.00  0.0    0  8.7 13  20   M    M   2        17  30
 4  47  35  41   0  24   0 0.13  0.0    0  2.7 10 120   M    M   9 1      12  90
 5  51  45  48   7  17   0 0.51  0.0    0  6.4 20 110   M    M  10 1      24 110
 6  48  42  45   4  20   0 0.17  0.0    0 10.5 22 220   M    M  10 1      28 210
 7  45  41  43   2  22   0 0.33  0.0    0  6.1 14 120   M    M  10 1      19 140
 8  49  43  46   4  19   0 0.16  0.0    0  3.7 12 110   M    M   9 1      17 110
 9  50  43  47   5  18   0 0.18  0.0    0  8.5 20 210   M    M  10 1      25 210
10  45  41  43   1  22   0 0.17  0.0    0 10.4 17 190   M    M   9 1      23 190
11  50  42  46   4  19   0 1.12  0.0    0  9.9 18 220   M    M  10 1      25 200
12  51  48  50   8  15   0 0.10  0.0    0 11.7 23 210   M    M   9 1      31 190
13  58  45  52  10  13   0 0.01  0.0    0  6.8 15  20   M    M   8 1      18  20
14  56  40  48   6  17   0 0.00  0.0    0  5.6 15  20   M    M   4 1      17  10
15  64  41  53  11  12   0 0.06  0.0    0  8.8 22 130   M    M   8 1      29 120
16  56  44  50   8  15   0 0.19  0.0    0  8.8 21 190   M    M   8 1      25 210
17  56  45  51   9  14   0 0.43    M    0  9.1 26 200   M    M  10 1      33 200
18  52  39  46   4  19   0 0.40  0.0    0 10.4 24 270   M    M   8 1      34 250
================================================================================
SM  915  732       343   0  3.96     0.0 144.6          M      147
================================================================================
AV 50.8 40.7                               8.0 FASTST   M    M   8    MAX(MPH)
                                 MISC ---->  # 26 200               # 34  250
================================================================================
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:    JANUARY
                                          YEAR:     2018
                                          LATITUDE:   47 27 N
                                          LONGITUDE: 122 18 W

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

AVERAGE MONTHLY: 45.8   TOTAL FOR MONTH:   3.96    1 = FOG OR MIST
DPTR FM NORMAL:   4.1   DPTR FM NORMAL:    0.55    2 = FOG REDUCING VISIBILITY
HIGHEST:    64 ON 15    GRTST 24HR  1.12 ON 11-11      TO 1/4 MILE OR LESS
LOWEST:     31 ON  1                               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:  14
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:  12
MIN 32 OR BELOW:   1    0.50 INCH OR MORE:   2
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   343    CLEAR  (SCALE 0-3)   1
DPTR FM NORMAL   -79    PTCLDY (SCALE 4-7)   6
TOTAL FM JUL 1  2101    CLOUDY (SCALE 8-10) 11
DPTR FM NORMAL  -259

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1     0    HIGHEST SLP M ON M
DPTR FM NORMAL     0    LOWEST  SLP 29.62 ON  8

[REMARKS]


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