CXUS51 KLWX 310915 CF6DCA PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: WASHINGTON NATIONAL DC MONTH: DECEMBER 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 46 34 40 -5 25 0 0.00 0.0 0 7.4 23 330 M M 5 30 330 2 42 36 39 -6 26 0 0.86 0.0 0 8.2 23 310 M M 9 1 35 300 3 46 30 38 -7 27 0 0.00 0.0 0 6.2 23 300 M M 3 32 300 4 46 30 38 -6 27 0 0.00 0.0 0 7.6 21 320 M M 6 28 300 5 34 28 31 -13 34 0 0.06 1.1 T 7.3 17 30 M M 10 16 28 10 6 44 31 38 -6 27 0 0.02 T T 5.0 12 180 M M 8 1468 14 180 7 43 29 36 -8 29 0 0.00 0.0 0 5.9 13 170 M M 6 12 15 180 8 37 26 32 -11 33 0 0.00 0.0 0 12.5 23 10 M M 9 29 30 9 33 20 27 -16 38 0 0.00 0.0 0 9.7 21 210 M M 7 27 200 10 45 31 38 -5 27 0 T 0.0 0 12.0 22 190 M M 9 30 180 11 44 34 39 -4 26 0 T T 0 13.6 25 300 M M 6 36 280 12 39 29 34 -8 31 0 0.00 0.0 0 6.3 16 270 M M 7 24 310 13 44 29 37 -5 28 0 0.00 0.0 0 5.6 15 20 M M 8 18 60 14 38 18 28 -14 37 0 0.26 0.4 T 16.3 31 320 M M 7 14 45 360 15 29 18 24 -18 41 0 0.00 0.0 0 9.5 20 320 M M 6 27 330 16 40 22 31 -11 34 0 0.00 0.0 0 3.4 12 200 M M 4 16 200 17 51 28 40 -1 25 0 0.00 0.0 0 3.4 10 190 M M 7 13 190 18 57 28 43 2 22 0 0.04 0.0 0 3.8 12 200 M M 6 15 210 19 60 36 48 7 17 0 0.48 0.0 0 14.9 30 300 M M 7 1 43 250 20 45 28 37 -4 28 0 0.00 0.0 0 9.2 16 190 M M 5 22 300 21 51 33 42 2 23 0 0.00 0.0 0 9.3 20 280 M M 5 30 300 22 46 28 37 -3 28 0 0.00 0.0 0 5.5 12 190 M M 4 16 180 23 43 38 41 1 24 0 0.03 T 0 7.2 14 180 M M 9 18 170 24 57 36 47 7 18 0 0.00 0.0 0 8.4 22 320 M M 4 31 330 25 60 38 49 9 16 0 T 0.0 0 9.2 21 320 M M 6 31 330 26 41 32 37 -3 28 0 0.01 T 0 8.7 16 180 M M 8 4 22 180 27 46 35 41 2 24 0 0.00 0.0 0 9.8 22 30 M M 9 31 20 28 45 35 40 1 25 0 T 0.0 0 9.4 20 190 M M 10 1 28 190 29 61 32 47 8 18 0 0.01 0.0 0 18.4 33 300 M M 8 1 54 310 30 37 27 32 -7 33 0 0.00 0.0 0 15.8 30 280 M M 6 44 270 ================================================================================ SM 1350 899 819 0 1.77 1.5 269.5 M 204 ================================================================================ AV 45.0 30.0 9.0 FASTST M M 7 MAX(MPH) MISC ----> 33 300 54 310 ================================================================================ 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: DECEMBER YEAR: 2025 LATITUDE: 38 50 N LONGITUDE: 77 2 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 37.5 TOTAL FOR MONTH: 1.77 1 = FOG OR MIST DPTR FM NORMAL: -4.3 DPTR FM NORMAL: -1.55 2 = FOG REDUCING VISIBILITY HIGHEST: 61 ON 29 GRTST 24HR 0.86 ON 2- 2 TO 1/4 MILE OR LESS LOWEST: 18 ON 15,14 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 1.5 INCHES 5 = HAIL GRTST 24HR 1.1 ON 5- 5 6 = FREEZING RAIN OR DRIZZLE GRTST DEPTH: T 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: 1 0.01 INCH OR MORE: 9 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 3 MIN 32 OR BELOW: 20 0.50 INCH OR MORE: 1 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 819 CLEAR (SCALE 0-3) 1 DPTR FM NORMAL 121 PTCLDY (SCALE 4-7) 20 TOTAL FM JUL 1 1414 CLOUDY (SCALE 8-10) 9 DPTR FM NORMAL 70 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL 0 [PRESSURE DATA] TOTAL FM JAN 1 1716 HIGHEST SLP M ON M DPTR FM NORMAL -21 LOWEST SLP 29.39 ON 29 [REMARKS]