PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: BLACKSBURG MONTH: APRIL YEAR: 2003 LATITUDE: 37 13 N LONGITUDE: 80 25 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 AVG MX 2MIN DY MAX MIN AVG DEP HDD CDD WTR SNW DPTH SPD SPD DIR MIN PSBL S-S WX SPD DR ================================================================================ 1 66 29 48 2 17 0 T T 0 9.5 18 270 M M 3 29 240 2 73 50 62 16 3 0 0.00 0.0 0 9.9 16 270 M M 0 24 270 3 78 44 61 15 4 0 0.00 0.0 0 7.1 16 300 M M 0 23 300 4 72 48 60 13 5 0 0.00 0.0 0 6.7 14 270 M M 3 25 260 5 70 47 59 12 6 0 0.18 0.0 0 9.9 18 270 M M 3 25 260 6 65 38 52 5 13 0 0.01 0.0 0 9.4 17 120 M M 3 25 120 7 48 35 42 -6 23 0 1.11 0.0 0 8.4 17 90 M M 10 1 22 90 8 39 35 37 -11 28 0 0.76 0.0 0 4.7 12 100 M M 10 12 M M 9 41 34 38 -10 27 0 0.30 0.0 0 7.6 10 70 M M 10 1 20 70 10 42 37 40 -8 25 0 1.07 0.0 0 12.1 20 70 M M 10 13 32 70 11 50 36 43 -6 22 0 0.01 0.0 0 8.7 22 320 M M 10 28 320 12 66 41 54 5 11 0 0.00 0.0 0 9.6 17 300 M M 0 25 300 13 68 34 51 2 14 0 0.00 0.0 0 2.4 7 280 M M 0 M M 14 74 34 54 4 11 0 0.00 0.0 0 2.8 8 200 M M 1 M M 15 78 40 59 9 6 0 0.00 0.0 0 4.1 10 220 M M 1 17 220 16 79 43 61 11 4 0 0.00 0.0 0 2.8 8 220 M M 1 M M 17 73 39 56 6 9 0 T 0.0 0 9.2 21 90 M M 5 1 30 80 18 43 37 40 -11 25 0 0.84 0.0 0 8.2 17 90 M M 10 1 22 90 19 55 42 49 -2 16 0 T 0.0 0 4.6 8 100 M M 10 1 M M 20 64 47 56 5 9 0 0.00 0.0 0 4.0 9 120 M M 8 12 M M 21 68 51 60 8 5 0 0.16 0.0 0 3.5 14 200 M M 7 12 21 200 22 54 44 49 -3 16 0 0.02 0.0 0 9.4 16 310 M M 8 23 310 23 60 39 50 -2 15 0 0.00 0.0 0 12.2 21 320 M M 2 31 330 24 68 31 50 -2 15 0 0.00 0.0 0 2.5 9 310 M M 2 M M 25 54 47 51 -2 14 0 0.03 0.0 0 4.5 7 90 M M 9 M M 26 68 52 60 7 5 0 0.03 0.0 0 3.8 13 310 M M 9 1 M M 27 72 42 57 4 8 0 T 0.0 0 3.5 8 260 M M 2 1 M M 28 78 38 58 4 7 0 0.00 0.0 0 3.3 12 210 M M 0 16 180 29 74 47 61 7 4 0 0.00 0.0 M 4.3 15 310 M M 3 22 300 30 75 49 62 8 3 0 0.25 0.0 0 3.6 10 110 M M 5 13 17 130 ================================================================================ SM 1915 1230 370 0 4.77 T 192.3 M 145 ================================================================================ AV 63.8 41.0 6.4 FASTST PSBL % 5 MAX(MPH) MISC ----> 22 320 32 70 ================================================================================ NOTES: # LAST OF SEVERAL OCCURRENCES COLUMN 17 PEAK WIND IN M.P.H. PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2 STATION: BLACKSBURG MONTH: APRIL YEAR: 2003 LATITUDE: 37 13 N LONGITUDE: 80 25 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 52.4 TOTAL FOR MONTH: 4.77 1 = FOG DPTR FM NORMAL: 2.4 DPTR FM NORMAL: 0.94 2 = FOG REDUCING VISIBILITY HIGHEST: 79 ON 16 GRTST 24HR 1.11 ON 7- 7 TO 1/4 MILE OR LESS LOWEST: 29 ON 1 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: T 5 = HAIL GRTST 24HR T ON 1- 1 6 = GLAZE OR RIME GRTST DEPTH: 0 7 = BLOWING DUST OR SAND: 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: 13 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 8 MIN 32 OR BELOW: 2 0.50 INCH OR MORE: 4 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 2 [HDD (BASE 65) ] TOTAL THIS MO. 370 CLEAR (SCALE 0-3) 16 DPTR FM NORMAL -82 PTCLDY (SCALE 4-7) 3 SEASONAL TOTAL 5057 CLOUDY (SCALE 8-10) 11 DPTR FM NORMAL -236 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL 0 [PRESSURE DATA] SEASONAL TOTAL 0 HIGHEST SLP M ON M DPTR FM NORMAL 0 LOWEST SLP M ON M [REMARKS]