WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CXUS51 KLWX 160815
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: WASHINGTON DULLES DC
MONTH: SEPTEMBER
YEAR: 2026
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 94 74 84 11 0 19 T 0.0 0 5.1 17 290 M M 7 23 290
2 92 73 83 10 0 18 T 0.0 0 3.2 25 50 M M 5 38 33 40
3 92 70 81 8 0 16 0.62 0.0 M 5.8 32 330 M M 6 13 49 320
4 91 70 81 8 0 16 0.21 0.0 M 3.3 18 290 M M 7 138 31 240
5 81 68 75 3 0 10 T 0.0 M 4.2 13 30 M M 6 16 20
6 83 61 72 0 0 7 0.00 0.0 0 5.9 15 30 M M 2 20 20
7 81 59 70 -2 0 5 0.00 0.0 0 3.4 10 10 M M 2 14 10
8 86 57 72 0 0 7 0.00 0.0 0 3.3 9 190 M M 4 18 230
9 89 66 78 7 0 13 0.00 0.0 0 9.8 17 200 M M 3 27 170
10 88 71 80 9 0 15 0.00 0.0 0 7.9 15 290 M M 6 23 200
11 79 66 73 3 0 8 0.56 0.0 0 4.0 12 360 M M 8 1 16 340
12 80 66 73 3 0 8 T 0.0 0 5.8 13 130 M M 9 18 140
13 90 72 81 11 0 16 0.03 0.0 0 3.0 10 60 M M 7 17 260
14 79 59 69 0 0 4 0.00 0.0 0 9.3 18 320 M M 4 31 330
15 77 52 65 -4 0 0 0.00 0.0 0 2.9 10 130 M M 1 15 190
================================================================================
SM 1282 984 0 162 1.42 0.0 76.9 M 77
================================================================================
AV 85.5 65.6 5.1 FASTST M M 5 MAX(MPH)
MISC ----> 32 330 49 320
================================================================================
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: 2026
LATITUDE: 38 57 N
LONGITUDE: 77 27 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 75.5 TOTAL FOR MONTH: 1.42 1 = FOG OR MIST
DPTR FM NORMAL: 4.2 DPTR FM NORMAL: -0.47 2 = FOG REDUCING VISIBILITY
HIGHEST: 94 ON 1 GRTST 24HR 0.83 ON 3- 4 TO 1/4 MILE OR LESS
LOWEST: 52 ON 15 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: 4
MAX 90 OR ABOVE: 5 0.10 INCH OR MORE: 3
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 2
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 0 CLEAR (SCALE 0-3) 4
DPTR FM NORMAL -6 PTCLDY (SCALE 4-7) 10
TOTAL FM JUL 1 0 CLOUDY (SCALE 8-10) 1
DPTR FM NORMAL -7
[CDD (BASE 65) ]
TOTAL THIS MO. 162
DPTR FM NORMAL 60 [PRESSURE DATA]
TOTAL FM JAN 1 1442 HIGHEST SLP M ON M
DPTR FM NORMAL 284 LOWEST SLP 29.83 ON 5
[REMARKS]