CXUS51 KLWX 160815 CF6DCA PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: WASHINGTON NATIONAL DC MONTH: APRIL YEAR: 2026 LATITUDE: 38 50 N LONGITUDE: 77 2 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 87 63 75 22 0 10 0.19 0.0 0 8.4 28 210 M M 8 13 43 240 2 64 48 56 3 9 0 0.02 0.0 0 11.0 17 70 M M 10 1 23 20 3 82 48 65 11 0 0 T 0.0 0 8.1 17 190 M M 8 1 27 170 4 85 65 75 21 0 10 T 0.0 0 10.2 18 180 M M 5 24 190 5 74 51 63 9 2 0 0.69 0.0 0 14.4 26 280 M M 7 1 38 270 6 63 46 55 0 10 0 0.00 0.0 0 8.5 21 320 M M 5 29 310 7 58 44 51 -4 14 0 0.00 0.0 0 13.3 25 290 M M 4 36 290 8 55 35 45 -11 20 0 0.00 0.0 0 8.7 18 20 M M 2 25 20 9 64 37 51 -5 14 0 0.00 0.0 0 6.4 15 170 M M 6 21 240 10 74 44 59 3 6 0 0.00 0.0 0 8.6 15 170 M M 3 20 310 11 71 55 63 6 2 0 0.00 0.0 0 7.8 23 340 M M 2 30 320 12 71 49 60 3 5 0 0.00 0.0 0 9.1 18 170 M M 5 29 160 13 82 58 70 13 0 5 T 0.0 0 12.7 24 220 M M 8 32 220 14 87 61 74 16 0 9 0.00 0.0 0 9.2 20 170 M M 6 34 180 15 90 64 77 19 0 12 0.00 0.0 0 7.8 17 210 M M 7 26 230 ================================================================================ SM 1107 768 82 46 0.90 0.0 144.2 M 86 ================================================================================ AV 73.8 51.2 9.6 FASTST M M 6 MAX(MPH) MISC ----> 28 210 43 240 ================================================================================ 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 NATIONAL DC MONTH: APRIL YEAR: 2026 LATITUDE: 38 50 N LONGITUDE: 77 2 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 62.5 TOTAL FOR MONTH: 0.90 1 = FOG OR MIST DPTR FM NORMAL: 7.0 DPTR FM NORMAL: -0.65 2 = FOG REDUCING VISIBILITY HIGHEST: 90 ON 15 GRTST 24HR 0.69 ON 5- 5 TO 1/4 MILE OR LESS LOWEST: 35 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: 3 MAX 90 OR ABOVE: 1 0.10 INCH OR MORE: 2 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 1 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 82 CLEAR (SCALE 0-3) 2 DPTR FM NORMAL -70 PTCLDY (SCALE 4-7) 11 TOTAL FM JUL 1 3690 CLOUDY (SCALE 8-10) 2 DPTR FM NORMAL 71 [CDD (BASE 65) ] TOTAL THIS MO. 46 DPTR FM NORMAL 37 [PRESSURE DATA] TOTAL FM JAN 1 61 HIGHEST SLP M ON M DPTR FM NORMAL 49 LOWEST SLP 29.83 ON 5 [REMARKS]