611 CXUS51 KLWX 170815 CF6DCA PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: WASHINGTON NATIONAL DC MONTH: APRIL YEAR: 2023 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 78 50 64 11 1 0 0.25 0.0 0 19.1 40 310 M M 9 13 59 300 2 58 45 52 -1 13 0 0.00 0.0 0 13.8 29 330 M M 3 39 340 3 72 42 57 3 8 0 0.00 0.0 0 10.4 23 210 M M 5 8 32 200 4 79 56 68 14 0 3 0.00 0.0 0 9.0 16 170 M M 3 24 200 5 87 59 73 19 0 8 0.00 0.0 0 10.0 23 190 M M 8 33 180 6 86 60 73 18 0 8 0.03 0.0 0 9.0 35 340 M M 8 13 49 320 7 59 49 54 -1 11 0 0.01 T 0 8.8 18 340 M M 9 4 24 350 8 54 45 50 -6 15 0 0.00 0.0 0 9.1 21 50 M M 10 26 60 9 63 40 52 -4 13 0 0.00 0.0 0 5.9 14 170 M M 3 18 160 10 65 41 53 -3 12 0 0.00 0.0 0 6.8 15 170 M M 0 20 180 11 79 44 62 5 3 0 0.00 0.0 0 7.4 15 250 M M 3 21 290 12 86 54 70 13 0 5 0.00 0.0 0 9.5 21 280 M M 4 30 260 13 88 56 72 15 0 7 0.00 0.0 0 6.2 15 260 M M 1 20 260 14 81 60 71 13 0 6 T 0.0 0 9.1 17 180 M M 9 24 180 15 79 65 72 14 0 7 0.53 0.0 0 6.2 16 160 M M 8 13 23 260 16 81 60 71 13 0 6 0.00 0.0 0 8.1 17 180 M M 8 23 190 ================================================================================ SM 1195 826 76 50 0.82 T 148.4 M 91 ================================================================================ AV 74.7 51.6 9.3 FASTST M M 6 MAX(MPH) MISC ----> 40 310 59 300 ================================================================================ 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: 2023 LATITUDE: 38 50 N LONGITUDE: 77 2 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 63.2 TOTAL FOR MONTH: 0.82 1 = FOG OR MIST DPTR FM NORMAL: 7.5 DPTR FM NORMAL: -0.83 2 = FOG REDUCING VISIBILITY HIGHEST: 88 ON 13 GRTST 24HR 0.53 ON 14-15 TO 1/4 MILE OR LESS LOWEST: 40 ON 9 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: T 5 = HAIL GRTST 24HR T ON 7- 7 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: 4 MAX 90 OR ABOVE: 0 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. 76 CLEAR (SCALE 0-3) 4 DPTR FM NORMAL -84 PTCLDY (SCALE 4-7) 6 TOTAL FM JUL 1 3055 CLOUDY (SCALE 8-10) 6 DPTR FM NORMAL -572 [CDD (BASE 65) ] TOTAL THIS MO. 50 DPTR FM NORMAL 40 [PRESSURE DATA] TOTAL FM JAN 1 52 HIGHEST SLP M ON M DPTR FM NORMAL 39 LOWEST SLP 29.30 ON 1 [REMARKS]