


WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
755 CXUS51 KLWX 140815 CF6DCA PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: WASHINGTON NATIONAL DC MONTH: MAY YEAR: 2025 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 83 61 72 9 0 7 0.00 0.0 0 8.5 15 160 M M 6 23 160 2 84 69 77 13 0 12 T 0.0 0 8.4 17 200 M M 7 3 24 200 3 84 66 75 11 0 10 0.31 0.0 0 11.1 22 190 M M 7 13 30 200 4 74 65 70 6 0 5 0.22 0.0 0 8.1 17 180 M M 9 1 24 170 5 75 63 69 5 0 4 0.64 0.0 0 9.0 23 220 M M 10 13 30 220 6 74 62 68 3 0 3 0.02 0.0 0 6.3 22 310 M M 8 8 34 260 7 74 59 67 2 0 2 T 0.0 M 7.0 17 330 M M 7 25 340 8 79 60 70 5 0 5 0.03 0.0 0 3.4 22 280 M M 8 8 34 290 9 66 51 59 -6 6 0 0.99 0.0 0 9.9 18 360 M M 8 13 26 350 10 74 49 62 -4 3 0 0.00 0.0 0 8.8 23 320 M M 3 36 320 11 80 56 68 2 0 3 0.00 0.0 0 5.8 13 180 M M 7 18 200 12 78 60 69 3 0 4 T 0.0 0 5.3 14 180 M M 8 19 180 13 68 63 66 0 0 1 1.58 0.0 0 10.9 22 110 M M 10 1 35 130 ================================================================================ SM 993 784 9 56 3.79 0.0 102.5 M 98 ================================================================================ AV 76.4 60.3 7.9 FASTST M M 8 MAX(MPH) MISC ----> # 23 220 36 320 ================================================================================ 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: MAY YEAR: 2025 LATITUDE: 38 50 N LONGITUDE: 77 2 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 68.3 TOTAL FOR MONTH: 3.79 1 = FOG OR MIST DPTR FM NORMAL: 3.5 DPTR FM NORMAL: 2.16 2 = FOG REDUCING VISIBILITY HIGHEST: 84 ON 3, 2 GRTST 24HR 1.58 ON 13-13 TO 1/4 MILE OR LESS LOWEST: 49 ON 10 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: 7 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 5 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 3 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1 [HDD (BASE 65) ] TOTAL THIS MO. 9 CLEAR (SCALE 0-3) 0 DPTR FM NORMAL -28 PTCLDY (SCALE 4-7) 9 TOTAL FM JUL 1 3261 CLOUDY (SCALE 8-10) 4 DPTR FM NORMAL -479 [CDD (BASE 65) ] TOTAL THIS MO. 56 DPTR FM NORMAL 21 [PRESSURE DATA] TOTAL FM JAN 1 148 HIGHEST SLP M ON M DPTR FM NORMAL 78 LOWEST SLP 29.79 ON 3 [REMARKS]