WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CXUS51 KLWX 020815
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: WASHINGTON DULLES DC
MONTH: SEPTEMBER
YEAR: 2025
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 81 50 66 -7 0 1 0.00 0.0 0 6.2 16 90 M M 3 23 70
================================================================================
SM 81 50 0 1 0.00 0.0 6.2 M 3
================================================================================
AV 81.0 50.0 6.2 FASTST M M 3 MAX(MPH)
MISC ----> 16 90 23 70
================================================================================
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: 2025
LATITUDE: 38 57 N
LONGITUDE: 77 27 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 65.5 TOTAL FOR MONTH: 0.00 1 = FOG OR MIST
DPTR FM NORMAL: -7.5 DPTR FM NORMAL: -0.12 2 = FOG REDUCING VISIBILITY
HIGHEST: 81 ON 1 GRTST 24HR 0.00 ON 1- 1 TO 1/4 MILE OR LESS
LOWEST: 50 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: 0
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 0
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 0
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 0 CLEAR (SCALE 0-3) 1
DPTR FM NORMAL 0 PTCLDY (SCALE 4-7) 0
TOTAL FM JUL 1 2 CLOUDY (SCALE 8-10) 0
DPTR FM NORMAL 1
[CDD (BASE 65) ]
TOTAL THIS MO. 1
DPTR FM NORMAL -7 [PRESSURE DATA]
TOTAL FM JAN 1 1149 HIGHEST SLP M ON M
DPTR FM NORMAL 85 LOWEST SLP 30.16 ON 1
[REMARKS]