CXUS51 KLWX 160815 CF6IAD PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: WASHINGTON DULLES DC MONTH: OCTOBER 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 86 61 74 12 0 9 0.00 0.0 0 4.7 10 200 M M 5 14 190 2 89 60 75 13 0 10 0.24 0.0 0 6.1 17 330 M M 7 1 26 310 3 68 57 63 1 2 0 0.09 0.0 0 4.6 18 20 M M 9 1 28 20 4 64 60 62 1 3 0 0.07 0.0 M 3.8 9 70 M M 10 1 15 70 5 74 56 65 4 0 0 0.00 0.0 M 6.8 18 290 M M 6 12 28 280 6 65 44 55 -5 10 0 0.00 0.0 M 3.1 10 340 M M 0 8 14 340 7 73 42 58 -2 7 0 0.00 0.0 M 6.1 16 190 M M 0 22 190 8 79 51 65 5 0 0 0.00 0.0 0 6.5 21 290 M M 1 27 300 9 76 45 61 2 4 0 0.00 0.0 0 2.3 14 330 M M 8 23 290 10 70 49 60 1 5 0 T 0.0 0 5.4 14 80 M M 8 19 90 11 63 60 62 4 3 0 1.91 0.0 0 9.6 16 350 M M 10 1 24 350 12 76 57 67 9 0 2 0.96 0.0 0 9.5 22 350 M M 7 1 31 350 13 84 52 68 10 0 3 0.00 0.0 0 5.8 13 200 M M 1 20 200 14 89 63 76 19 0 11 T 0.0 0 6.6 14 350 M M 4 19 190 15 77 59 68 11 0 3 0.14 0.0 0 6.4 15 360 M M 10 1 22 360 ================================================================================ SM 1133 816 34 38 3.41 0.0 87.3 M 86 ================================================================================ AV 75.5 54.4 5.8 FASTST M M 6 MAX(MPH) MISC ----> 22 350 31 350 ================================================================================ 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: OCTOBER YEAR: 2026 LATITUDE: 38 57 N LONGITUDE: 77 27 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 65.0 TOTAL FOR MONTH: 3.41 1 = FOG OR MIST DPTR FM NORMAL: 5.4 DPTR FM NORMAL: 1.60 2 = FOG REDUCING VISIBILITY HIGHEST: 89 ON 14, 2 GRTST 24HR 2.60 ON 11-12 TO 1/4 MILE OR LESS LOWEST: 42 ON 7 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 LESS8 = 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: 4 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 2 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1 [HDD (BASE 65) ] TOTAL THIS MO. 34 CLEAR (SCALE 0-3) 4 DPTR FM NORMAL -65 PTCLDY (SCALE 4-7) 6 TOTAL FM JUL 1 55 CLOUDY (SCALE 8-10) 5 DPTR FM NORMAL -90 [CDD (BASE 65) ] TOTAL THIS MO. 38 DPTR FM NORMAL 19 [PRESSURE DATA] TOTAL FM JAN 1 1542 HIGHEST SLP M ON M DPTR FM NORMAL 315 LOWEST SLP 29.73 ON 12 [REMARKS]