WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
050
CXUS51 KLWX 220815
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: WASHINGTON DULLES DC
MONTH: APRIL
YEAR: 2025
LATITUDE: 38 57 N
LONGITUDE: 77 27 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 57 38 48 -2 17 0 0.00 0.0 M 11.6 26 310 M M 3 37 290
2 57 34 46 -4 19 0 0.00 0.0 0 9.1 18 140 M M 8 27 140
3 76 51 64 14 1 0 0.03 0.0 M 9.4 20 210 M M 10 1 29 200
4 73 57 65 14 0 0 0.11 0.0 0 6.0 30 310 M M 9 13 43 300
5 80 54 67 16 0 2 0.00 0.0 0 6.2 14 60 M M 9 21 190
6 62 51 57 5 8 0 0.01 0.0 0 7.0 17 360 M M 9 1 24 10
7 51 42 47 -5 18 0 0.44 0.0 0 6.8 15 40 M M 10 1 20 50
8 48 35 42 -10 23 0 0.00 0.0 0 14.6 25 300 M M 5 41 300
9 54 26 40 -13 25 0 0.00 0.0 0 4.5 14 150 M M 2 21 210
10 57 43 50 -3 15 0 0.02 0.0 0 8.0 17 150 M M 10 27 140
11 49 45 47 -7 18 0 0.53 0.0 0 9.7 15 360 M M 10 1 21 330
12 53 43 48 -6 17 0 0.05 0.0 0 12.8 22 320 M M 9 18 30 330
13 62 44 53 -1 12 0 0.00 0.0 0 10.3 23 310 M M 6 33 330
14 76 43 60 5 5 0 0.18 0.0 0 5.9 13 40 M M 8 13 18 150
15 67 50 59 4 6 0 T 0.0 0 15.7 38 280 M M 8 55 280
16 61 44 53 -2 12 0 0.00 0.0 0 13.1 28 300 M M 4 40 300
17 64 32 48 -8 17 0 0.00 0.0 0 5.5 14 330 M M 2 8 21 330
18 80 41 61 5 4 0 0.00 0.0 0 11.8 26 190 M M 6 39 180
19 82 67 75 19 0 10 0.00 0.0 M 13.6 21 200 M M 8 30 220
20 73 61 67 10 0 2 0.00 0.0 M 7.7 16 350 M M 9 23 10
21 76 56 66 9 0 1 T 0.0 0 7.9 17 150 M M 9 26 190
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SM 1358 957 217 15 1.37 0.0 197.2 M 154
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AV 64.7 45.6 9.4 FASTST M M 7 MAX(MPH)
MISC ----> 38 280 55 280
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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: WASHINGTON DULLES DC
MONTH: APRIL
YEAR: 2025
LATITUDE: 38 57 N
LONGITUDE: 77 27 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 55.1 TOTAL FOR MONTH: 1.37 1 = FOG OR MIST
DPTR FM NORMAL: 1.6 DPTR FM NORMAL: -0.96 2 = FOG REDUCING VISIBILITY
HIGHEST: 82 ON 19 GRTST 24HR 0.63 ON 31- 1 TO 1/4 MILE OR LESS
LOWEST: 26 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: 8
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 4
MIN 32 OR BELOW: 2 0.50 INCH OR MORE: 1
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 217 CLEAR (SCALE 0-3) 3
DPTR FM NORMAL -36 PTCLDY (SCALE 4-7) 5
TOTAL FM JUL 1 3989 CLOUDY (SCALE 8-10) 13
DPTR FM NORMAL -421
[CDD (BASE 65) ]
TOTAL THIS MO. 15
DPTR FM NORMAL 5 [PRESSURE DATA]
TOTAL FM JAN 1 32 HIGHEST SLP M ON M
DPTR FM NORMAL 20 LOWEST SLP 29.57 ON 15
[REMARKS]