WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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712
CXUS51 KLWX 110815
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
2 79 51 65 -8 0 0 0.00 0.0 0 3.4 12 50 M M 3 1 19 30
3 83 51 67 -6 0 2 0.00 0.0 0 4.1 14 150 M M 3 20 140
4 87 62 75 2 0 10 T 0.0 0 10.1 21 220 M M 4 29 190
5 90 61 76 4 0 11 0.00 0.0 0 6.8 21 200 M M 4 30 190
6 94 63 79 7 0 14 0.02 0.0 0 8.2 22 310 M M 8 29 320
7 78 51 65 -7 0 0 0.01 0.0 0 8.1 16 320 M M 7 24 330
8 76 47 62 -10 3 0 0.00 0.0 0 4.6 13 40 M M 1 18 18 30
9 78 46 62 -9 3 0 0.00 0.0 0 6.1 15 70 M M 2 23 40
10 72 59 66 -5 0 1 0.15 0.0 0 6.9 14 360 M M 10 18 18 340
================================================================================
SM 818 541 6 39 0.18 0.0 64.5 M 45
================================================================================
AV 81.8 54.1 6.4 FASTST M M 5 MAX(MPH)
MISC ----> 22 310 30 190
================================================================================
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: 68.0 TOTAL FOR MONTH: 0.18 1 = FOG OR MIST
DPTR FM NORMAL: -4.2 DPTR FM NORMAL: -1.04 2 = FOG REDUCING VISIBILITY
HIGHEST: 94 ON 6 GRTST 24HR 0.15 ON 10-10 TO 1/4 MILE OR LESS
LOWEST: 46 ON 9 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: 3
MAX 90 OR ABOVE: 2 0.10 INCH OR MORE: 1
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. 6 CLEAR (SCALE 0-3) 5
DPTR FM NORMAL 5 PTCLDY (SCALE 4-7) 4
TOTAL FM JUL 1 8 CLOUDY (SCALE 8-10) 1
DPTR FM NORMAL 6
[CDD (BASE 65) ]
TOTAL THIS MO. 39
DPTR FM NORMAL -35 [PRESSURE DATA]
TOTAL FM JAN 1 1187 HIGHEST SLP M ON M
DPTR FM NORMAL 57 LOWEST SLP 29.73 ON 4
[REMARKS]