WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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029
CXUS51 KLWX 012210
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: WASHINGTON DULLES DC
MONTH: SEPTEMBER
YEAR: 2020
LATITUDE: 38 57 N
LONGITUDE: 77 27 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 79 66 73 0 0 8 0.18 0.0 0 3.5 10 130 M M 10 1 14 130
2 87 72 80 7 0 15 T 0.0 0 7.9 20 200 M M 8 13 29 200
3 91 69 80 8 0 15 0.09 0.0 0 4.3 20 340 M M 6 13 28 320
4 88 65 77 5 0 12 0.01 0.0 0 4.9 20 290 M M 3 1 26 290
5 80 56 68 -4 0 3 0.00 0.0 0 3.7 10 300 M M 2 15 290
6 83 55 69 -3 0 4 0.00 0.0 0 4.0 12 180 M M 1 19 190
7 83 57 70 -1 0 5 0.00 0.0 0 3.5 13 170 M M 1 19 150
8 85 58 72 1 0 7 0.00 0.0 0 3.4 9 180 M M 4 12 180
9 80 66 73 2 0 8 0.77 0.0 0 4.8 12 350 M M 8 18 17 350
10 83 74 79 9 0 14 0.11 0.0 0 5.1 12 360 M M 8 1 17 50
11 82 71 77 7 0 12 T 0.0 0 7.6 16 350 M M 7 21 350
12 73 62 68 -2 0 3 T 0.0 0 7.2 15 110 M M 10 23 110
13 82 57 70 1 0 5 0.00 0.0 0 2.7 14 210 M M 3 19 160
14 78 62 70 1 0 5 0.00 0.0 0 10.0 18 320 M M 7 27 330
15 69 49 59 -9 6 0 0.00 0.0 0 4.5 13 30 M M 7 19 360
16 73 46 60 -8 5 0 0.00 0.0 0 3.2 14 210 M M 7 20 190
17 72 54 63 -5 2 0 0.18 0.0 0 1.4 8 210 M M 9 1 11 210
18 75 57 66 -1 0 1 0.14 0.0 0 10.2 20 350 M M 7 1 26 340
19 66 43 55 -12 10 0 0.00 0.0 0 6.7 17 360 M M 2 27 360
20 68 41 55 -11 10 0 0.00 0.0 0 6.4 14 70 M M 1 8 19 60
21 68 41 55 -11 10 0 0.00 0.0 0 3.5 13 40 M M 1 20 50
22 72 38 55 -10 10 0 0.00 0.0 0 3.4 15 310 M M 0 19 300
23 81 45 63 -2 2 0 0.00 0.0 0 4.4 16 320 M M 2 23 320
24 73 54 64 0 1 0 0.00 0.0 0 1.1 7 210 M M 8 9 210
25 68 57 63 -1 2 0 0.31 0.0 0 3.9 12 200 M M 9 12 15 200
26 74 61 68 4 0 3 0.01 0.0 0 4.7 12 320 M M 10 18 14 320
27 78 64 71 8 0 6 T 0.0 0 3.7 8 150 M M 8 1 11 140
28 80 65 73 10 0 8 0.00 0.0 0 7.7 15 200 M M 7 22 180
29 77 55 66 4 0 1 0.37 0.0 0 10.0 23 330 M M 9 1 33 330
30 71 52 62 0 3 0 0.11 0.0 0 8.9 17 200 M M 3 1 27 200
================================================================================
SM 2319 1712 61 135 2.28 0.0 156.3 M 168
================================================================================
AV 77.3 57.1 5.2 FASTST M M 6 MAX(MPH)
MISC ----> 23 330 33 330
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES
COLUMN 17 PEAK WIND IN M.P.H.
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2
STATION: WASHINGTON DULLES DC
MONTH: SEPTEMBER
YEAR: 2020
LATITUDE: 38 57 N
LONGITUDE: 77 27 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 67.2 TOTAL FOR MONTH: 2.28 1 = FOG OR MIST
DPTR FM NORMAL: -0.7 DPTR FM NORMAL: -1.64 2 = FOG REDUCING VISIBILITY
HIGHEST: 91 ON 3 GRTST 24HR 0.88 ON 9-10 TO 1/4 MILE OR LESS
LOWEST: 38 ON 22 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: 11
MAX 90 OR ABOVE: 1 0.10 INCH OR MORE: 8
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 1
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 61 CLEAR (SCALE 0-3) 9
DPTR FM NORMAL 5 PTCLDY (SCALE 4-7) 13
TOTAL FM JUL 1 61 CLOUDY (SCALE 8-10) 8
DPTR FM NORMAL 4
[CDD (BASE 65) ]
TOTAL THIS MO. 135
DPTR FM NORMAL -6 [PRESSURE DATA]
TOTAL FM JAN 1 1387 HIGHEST SLP 30.57 ON 21
DPTR FM NORMAL 230 LOWEST SLP 29.59 ON 30
[REMARKS]
#FINAL-09-20#