WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CXUS51 KLWX 011905
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: WASHINGTON DULLES DC
MONTH: MAY
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 69 46 58 -2 7 0 0.00 0.0 0 12.4 31 310 M M 1 43 330
2 85 50 68 8 0 3 0.00 0.0 0 10.6 20 210 M M 6 29 210
3 74 61 68 7 0 3 0.08 0.0 0 8.4 16 180 M M 9 24 180
4 83 64 74 13 0 9 0.49 0.0 0 5.7 26 270 M M 8 13 39 280
5 79 54 67 6 0 2 0.22 0.0 0 8.4 30 310 M M 7 12 43 320
6 65 45 55 -6 10 0 0.00 0.0 0 7.0 22 320 M M 5 33 340
7 62 41 52 -10 13 0 0.19 0.0 0 4.1 13 220 M M 7 1 18 220
8 62 39 51 -11 14 0 0.04 0.0 0 8.2 31 290 M M 5 1 42 280
9 68 40 54 -8 11 0 0.00 0.0 0 7.1 20 180 M M 9 31 210
10 69 45 57 -5 8 0 T 0.0 0 11.7 22 340 M M 5 33 330
11 69 44 57 -6 8 0 0.00 0.0 0 6.9 18 250 M M 6 29 270
12 67 44 56 -7 9 0 0.00 0.0 0 5.8 20 330 M M 6 29 330
13 70 41 56 -7 9 0 0.00 0.0 0 4.9 15 290 M M 3 20 30
14 74 39 57 -7 8 0 0.00 0.0 0 3.2 15 330 M M 5 26 350
15 77 39 58 -6 7 0 0.00 0.0 0 2.7 12 60 M M 3 14 30
16 71 46 59 -5 6 0 0.01 0.0 0 4.5 15 280 M M 7 3 21 270
17 75 45 60 -4 5 0 0.00 0.0 0 2.3 10 150 M M 6 1 16 160
18 80 46 63 -1 2 0 0.00 0.0 0 3.0 9 260 M M 2 13 210
19 85 50 68 3 0 3 0.00 0.0 0 2.3 10 220 M M 2 17 160
20 89 52 71 6 0 6 0.00 0.0 0 3.9 17 120 M M 3 27 120
21 84 50 67 2 0 2 0.00 0.0 0 3.8 9 190 M M 2 14 180
22 89 54 72 6 0 7 0.00 0.0 0 6.9 18 300 M M 7 26 310
23 92 63 78 12 0 13 0.00 0.0 0 8.6 22 290 M M 6 28 290
24 79 59 69 3 0 4 0.53 0.0 0 7.0 15 110 M M 10 1 23 90
25 80 57 69 3 0 4 0.00 0.0 0 6.2 14 150 M M 8 19 180
26 92 68 80 13 0 15 0.45 0.0 0 6.4 30 290 M M 6 13 36 290
27 85 64 75 8 0 10 0.00 0.0 0 7.0 15 310 M M 5 23 320
28 74 60 67 0 0 2 0.26 0.0 0 8.1 13 340 M M 9 1 19 100
29 60 50 55 -12 10 0 0.57 0.0 0 10.8 17 50 M M 10 1 24 40
30 57 49 53 -15 12 0 0.03 0.0 0 9.0 15 340 M M 10 22 330
31 74 45 60 -8 5 0 0.00 0.0 0 4.9 16 360 M M 4 26 350
================================================================================
SM 2339 1550 144 83 2.87 0.0 201.8 M 182
================================================================================
AV 75.5 50.0 6.5 FASTST M M 6 MAX(MPH)
MISC ----> # 31 310 # 43 330
================================================================================
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: MAY
YEAR: 2021
LATITUDE: 38 57 N
LONGITUDE: 77 27 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 62.7 TOTAL FOR MONTH: 2.87 1 = FOG OR MIST
DPTR FM NORMAL: -1.3 DPTR FM NORMAL: -1.85 2 = FOG REDUCING VISIBILITY
HIGHEST: 92 ON 26,23 GRTST 24HR 0.76 ON 28-29 TO 1/4 MILE OR LESS
LOWEST: 39 ON 15,14 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: 11
MAX 90 OR ABOVE: 2 0.10 INCH OR MORE: 7
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 2
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 144 CLEAR (SCALE 0-3) 6
DPTR FM NORMAL 29 PTCLDY (SCALE 4-7) 18
TOTAL FM JUL 1 4152 CLOUDY (SCALE 8-10) 7
DPTR FM NORMAL -441
[CDD (BASE 65) ]
TOTAL THIS MO. 83
DPTR FM NORMAL -1 [PRESSURE DATA]
TOTAL FM JAN 1 109 HIGHEST SLP 30.54 ON 21
DPTR FM NORMAL 3 LOWEST SLP 29.65 ON 3
[REMARKS]
#FINAL-05-21#