WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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719
CXUS51 KLWX 010915
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: WASHINGTON DULLES DC
MONTH: JANUARY
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 35 20 28 -7 37 0 0.01 0.1 T 9.9 36 320 M M 7 1 36 320
2 38 23 31 -4 34 0 0.00 0.0 0 3.0 13 350 M M 8 17 360
3 36 24 30 -5 35 0 0.00 0.0 0 2.8 10 350 M M 9 13 340
4 42 27 35 1 30 0 T T 0 4.9 15 310 M M 7 23 300
5 42 21 32 -2 33 0 0.00 0.0 0 6.5 15 190 M M 8 22 180
6 49 29 39 5 26 0 0.00 0.0 0 1.9 8 170 M M 8 1 11 170
7 62 32 47 13 18 0 0.00 0.0 0 5.6 18 320 M M 3 1 28 340
8 57 27 42 8 23 0 0.00 0.0 0 2.6 12 190 M M 4 1 16 180
9 54 39 47 13 18 0 0.01 0.0 0 7.7 17 200 M M 8 1 24 210
10 52 45 49 15 16 0 1.21 0.0 0 4.2 10 10 M M 10 1 14 300
11 49 33 41 7 24 0 T 0.0 0 13.4 36 300 M M 7 1 46 300
12 49 26 38 4 27 0 0.00 0.0 0 6.5 21 300 M M 3 29 300
13 54 21 38 4 27 0 0.00 0.0 0 7.5 23 190 M M 5 31 210
14 53 43 48 14 17 0 T 0.0 0 8.0 16 210 M M 9 26 230
15 44 21 33 -1 32 0 0.01 0.0 0 17.3 26 300 M M 5 39 320
16 37 18 28 -6 37 0 0.00 0.0 M 9.6 25 300 M M 6 34 300
17 44 31 38 4 27 0 0.03 0.3 0 6.4 13 190 M M 7 14 20 220
18 37 21 29 -5 36 0 0.07 T 0 7.7 17 350 M M 8 1 24 340
19 42 16 29 -5 36 0 0.00 0.0 0 7.0 17 320 M M 2 30 270
20 31 11 21 -13 44 0 0.00 0.0 0 7.7 18 320 M M 0 25 320
21 42 6 24 -10 41 0 0.00 0.0 0 8.2 23 190 M M 2 36 200
22 56 32 44 10 21 0 0.00 0.0 0 8.4 22 290 M M 5 30 280
23 46 17 32 -2 33 0 0.00 0.0 0 10.2 30 340 M M 5 40 350
24 19 8 14 -20 51 0 T T 0 8.5 25 350 M M 7 34 340
25 18 14 16 -18 49 0 1.84 7.8 4 8.3 14 310 M M 10 124 18 310
26 26 15 21 -13 44 0 0.00 0.0 8 14.5 29 300 M M 6 39 300
27 29 3 16 -18 49 0 0.00 0.0 7 8.5 21 330 M M 3 30 310
28 24 14 19 -15 46 0 0.00 0.0 7 7.7 21 320 M M 3 30 320
29 24 13 19 -15 46 0 0.00 0.0 6 11.1 20 320 M M 2 28 310
30 21 6 14 -20 51 0 0.00 0.0 6 7.3 15 350 M M 5 19 360
31 21 9 15 -19 50 0 0.00 0.0 6 11.1 22 340 M M 7 32 330
================================================================================
SM 1233 665 1058 0 3.18 8.2 244.0 M 179
================================================================================
AV 39.8 21.5 7.9 FASTST M M 6 MAX(MPH)
MISC ----> # 36 320 46 300
================================================================================
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: JANUARY
YEAR: 2026
LATITUDE: 38 57 N
LONGITUDE: 77 27 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 30.6 TOTAL FOR MONTH: 3.18 1 = FOG OR MIST
DPTR FM NORMAL: -3.3 DPTR FM NORMAL: 0.24 2 = FOG REDUCING VISIBILITY
HIGHEST: 62 ON 7 GRTST 24HR 2.05 ON 25-25 TO 1/4 MILE OR LESS
LOWEST: 3 ON 27 3 = THUNDER
SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS
TOTAL MONTH: 8.2 INCHES 5 = HAIL
GRTST 24HR 7.8 ON 25-25 6 = FREEZING RAIN OR DRIZZLE
GRTST DEPTH: 8 ON 26 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: 9 0.01 INCH OR MORE: 7
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 2
MIN 32 OR BELOW: 27 0.50 INCH OR MORE: 2
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 2
[HDD (BASE 65) ]
TOTAL THIS MO. 1058 CLEAR (SCALE 0-3) 5
DPTR FM NORMAL 94 PTCLDY (SCALE 4-7) 21
TOTAL FM JUL 1 2785 CLOUDY (SCALE 8-10) 5
DPTR FM NORMAL 83
[CDD (BASE 65) ]
TOTAL THIS MO. 0
DPTR FM NORMAL 0 [PRESSURE DATA]
TOTAL FM JAN 1 0 HIGHEST SLP 30.75 ON 24
DPTR FM NORMAL 0 LOWEST SLP 29.42 ON 15
[REMARKS]
#FINAL-01-26#