WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
170
CXUS51 KLWX 170815
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: WASHINGTON DULLES DC
MONTH: JULY
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 92 70 81 5 0 16 0.36 0.0 0 6.8 21 280 M M 8 13 32 290
2 88 70 79 3 0 14 0.03 0.0 0 4.1 10 300 M M 7 1 14 320
3 90 66 78 1 0 13 0.00 0.0 0 4.7 14 300 M M 3 19 260
4 86 64 75 -2 0 10 0.00 0.0 0 6.5 15 320 M M 2 18 22 320
5 87 60 74 -3 0 9 0.00 0.0 0 3.4 12 150 M M 3 1 16 150
6 88 63 76 -1 0 11 T 0.0 0 5.6 14 110 M M 6 19 140
7 93 73 83 6 0 18 0.02 0.0 0 4.1 12 300 M M 7 15 300
8 95 72 84 7 0 19 0.21 0.0 0 3.8 21 340 M M 5 13 31 340
9 91 72 82 5 0 17 0.22 0.0 0 4.1 22 300 M M 8 13 30 300
10 87 71 79 2 0 14 T 0.0 0 3.9 9 110 M M 8 1 13 180
11 90 69 80 3 0 15 0.33 0.0 0 2.7 17 140 M M 5 13 24 140
12 90 72 81 4 0 16 0.02 0.0 M 4.3 17 60 M M 6 13 24 60
13 89 73 81 4 0 16 T 0.0 M 6.2 16 150 M M 7 3 24 160
14 89 74 82 5 0 17 0.11 0.0 M 5.1 20 290 M M 7 13 30 260
15 88 71 80 2 0 15 0.00 0.0 M 3.8 12 190 M M 8 1 17 210
16 90 71 81 3 0 16 0.49 0.0 M 6.1 21 330 M M 9 13 29 340
================================================================================
SM 1433 1111 0 236 1.79 0.0 75.2 M 99
================================================================================
AV 89.6 69.4 4.7 FASTST M M 6 MAX(MPH)
MISC ----> 22 300 32 290
================================================================================
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: JULY
YEAR: 2025
LATITUDE: 38 57 N
LONGITUDE: 77 27 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 79.5 TOTAL FOR MONTH: 1.79 1 = FOG OR MIST
DPTR FM NORMAL: 2.5 DPTR FM NORMAL: -0.39 2 = FOG REDUCING VISIBILITY
HIGHEST: 95 ON 8 GRTST 24HR 0.49 ON 16-16 TO 1/4 MILE OR LESS
LOWEST: 60 ON 5 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: 9
MAX 90 OR ABOVE: 8 0.10 INCH OR MORE: 6
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) 3
DPTR FM NORMAL 0 PTCLDY (SCALE 4-7) 12
TOTAL FM JUL 1 0 CLOUDY (SCALE 8-10) 1
DPTR FM NORMAL 0
[CDD (BASE 65) ]
TOTAL THIS MO. 236
DPTR FM NORMAL 46 [PRESSURE DATA]
TOTAL FM JAN 1 675 HIGHEST SLP M ON M
DPTR FM NORMAL 141 LOWEST SLP 29.81 ON 1
[REMARKS]