WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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000
CXUS51 KLWX 011053
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: WASHINGTON DULLES DC
MONTH: DECEMBER
YEAR: 2021
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 57 26 42 1 23 0 T 0.0 0 4.9 13 190 M M 5 18 190
2 66 44 55 14 10 0 0.00 0.0 0 10.9 22 290 M M 8 31 290
3 59 36 48 7 17 0 0.00 0.0 0 7.3 20 350 M M 5 28 290
4 58 34 46 6 19 0 0.00 0.0 0 2.6 9 320 M M 7 12 310
5 51 30 41 1 24 0 0.00 0.0 0 4.7 12 150 M M 5 16 140
6 69 39 54 14 11 0 0.00 0.0 0 15.3 38 310 M M 7 51 290
7 43 28 36 -4 29 0 0.00 0.0 0 5.7 18 310 M M 7 27 320
8 43 31 37 -2 28 0 0.00 0.0 0 4.4 17 300 M M 8 26 310
9 43 23 33 -6 32 0 0.00 0.0 0 4.7 12 130 M M 6 17 170
10 55 39 47 8 18 0 T 0.0 0 5.3 17 190 M M 9 25 180
11 68 46 57 18 8 0 0.05 0.0 0 15.6 36 310 M M 10 1 53 310
12 51 28 40 2 25 0 0.00 0.0 0 8.9 31 300 M M 3 43 300
13 55 22 39 1 26 0 0.00 0.0 0 1.5 7 190 M M 3 10 190
14 59 26 43 5 22 0 0.00 0.0 0 1.8 12 30 M M 1 16 20
15 57 27 42 4 23 0 0.00 0.0 0 3.5 12 180 M M 6 15 180
16 69 43 56 18 9 0 T 0.0 0 10.8 18 210 M M 7 26 220
17 63 53 58 21 7 0 T 0.0 0 6.1 15 360 M M 9 19 360
18 56 45 51 14 14 0 T 0.0 0 5.2 15 200 M M 10 20 190
19 54 29 42 5 23 0 T 0.0 0 14.1 29 330 M M 6 42 330
20 41 23 32 -5 33 0 0.00 0.0 0 4.0 10 220 M M 1 13 350
21 42 22 32 -5 33 0 0.00 0.0 0 2.5 9 130 M M 9 12 90
22 49 28 39 3 26 0 0.00 0.0 0 11.3 31 300 M M 4 1 41 280
23 43 20 32 -4 33 0 0.00 0.0 0 5.0 14 180 M M 3 20 190
24 54 35 45 9 20 0 0.00 0.0 0 6.0 20 190 M M 9 31 190
25 69 45 57 21 8 0 0.14 0.0 0 8.5 23 340 M M 9 1 32 360
26 62 42 52 16 13 0 0.00 0.0 0 8.9 18 300 M M 1 26 290
27 44 33 39 3 26 0 T 0.0 0 5.0 14 120 M M 7 18 120
28 57 35 46 11 19 0 0.02 0.0 0 2.7 15 340 M M 9 1 20 350
29 58 46 52 17 13 0 0.07 0.0 0 3.6 14 360 M M 9 1 18 110
30 54 48 51 16 14 0 0.16 0.0 0 1.6 8 180 M M 10 1 10 160
31 61 51 56 21 9 0 0.02 0.0 0 4.8 14 190 M M 9 1 19 190
================================================================================
SM 1710 1077 615 0 0.46 0.0 197.2 M 202
================================================================================
AV 55.2 34.7 6.4 FASTST M M 7 MAX(MPH)
MISC ----> 38 310 53 310
================================================================================
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: DECEMBER
YEAR: 2021
LATITUDE: 38 57 N
LONGITUDE: 77 27 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 45.0 TOTAL FOR MONTH: 0.46 1 = FOG OR MIST
DPTR FM NORMAL: 7.3 DPTR FM NORMAL: -2.84 2 = FOG REDUCING VISIBILITY
HIGHEST: 69 ON 25,16 GRTST 24HR 0.23 ON 29-30 TO 1/4 MILE OR LESS
LOWEST: 20 ON 23 3 = THUNDER
SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS
TOTAL MONTH: T 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: 6
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 2
MIN 32 OR BELOW: 14 0.50 INCH OR MORE: 0
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 615 CLEAR (SCALE 0-3) 6
DPTR FM NORMAL -230 PTCLDY (SCALE 4-7) 13
TOTAL FM JUL 1 1341 CLOUDY (SCALE 8-10) 12
DPTR FM NORMAL -405
[CDD (BASE 65) ]
TOTAL THIS MO. 0
DPTR FM NORMAL 0 [PRESSURE DATA]
TOTAL FM JAN 1 1480 HIGHEST SLP 30.60 ON 15
DPTR FM NORMAL 249 LOWEST SLP 29.52 ON 25
[REMARKS]
#FINAL-12-21#