WFO Monthly/Daily Climate Data Issued by NWS
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
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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
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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
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SM 2110 1603 111 23 3.02 0.0 214.0 M 198
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AV 70.3 53.4 7.1 FASTST M M 7 MAX(MPH)
MISC ----> 24 210 39 200
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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#