CXUS51 KLWX 090815 CF6IAD PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: WASHINGTON DULLES DC MONTH: MAY 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 83 55 69 9 0 4 0.00 0.0 0 7.4 16 150 M M 7 24 150 2 85 65 75 15 0 10 T 0.0 0 5.8 15 300 M M 7 3 24 290 3 83 64 74 13 0 9 0.17 0.0 0 7.4 17 280 M M 7 13 25 190 4 76 62 69 8 0 4 0.34 0.0 0 7.1 18 210 M M 8 1 23 210 5 74 60 67 6 0 2 0.24 0.0 0 7.6 23 130 M M 8 13 34 140 6 71 57 64 3 1 0 0.12 0.0 0 5.6 21 290 M M 8 13 28 290 7 73 54 64 2 1 0 T 0.0 M 6.0 16 330 M M 7 25 300 8 77 52 65 3 0 0 0.01 0.0 0 2.3 16 220 M M 6 25 210 ================================================================================ SM 622 469 2 29 0.88 0.0 49.2 M 58 ================================================================================ AV 77.8 58.6 6.1 FASTST M M 7 MAX(MPH) MISC ----> 23 130 34 140 ================================================================================ 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: 2025 LATITUDE: 38 57 N LONGITUDE: 77 27 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 68.2 TOTAL FOR MONTH: 0.88 1 = FOG OR MIST DPTR FM NORMAL: 7.2 DPTR FM NORMAL: -0.26 2 = FOG REDUCING VISIBILITY HIGHEST: 85 ON 2 GRTST 24HR 0.51 ON 3- 4 TO 1/4 MILE OR LESS LOWEST: 52 ON 8 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: 5 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 4 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. 2 CLEAR (SCALE 0-3) 0 DPTR FM NORMAL -42 PTCLDY (SCALE 4-7) 7 TOTAL FM JUL 1 4015 CLOUDY (SCALE 8-10) 1 DPTR FM NORMAL -506 [CDD (BASE 65) ] TOTAL THIS MO. 29 DPTR FM NORMAL 17 [PRESSURE DATA] TOTAL FM JAN 1 76 HIGHEST SLP M ON M DPTR FM NORMAL 42 LOWEST SLP 29.78 ON 3 [REMARKS]