PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: BLACKSBURG MONTH: DECEMBER YEAR: 2002 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 32 20 26 -12 39 0 T T 0 13.5 25 310 M M 4 36 310 2 45 19 32 -6 33 0 T T 0 6.4 23 260 M M 4 29 260 3 38 22 30 -7 35 0 0.00 0.0 0 7.2 20 290 M M 4 31 290 4 24 18 21 -16 44 0 0.71 7.0 7 2.9 6 120 M M 7 4 M M 5 32 20 26 -11 39 0 0.74 2.0 7 6.0 14 290 M M M 46 20 290 6 28 13 21 -15 44 0 T T 6 8.7 16 310 M M 5 22 300 7 41 -1 20 -16 45 0 0.00 0.0 6 2.3 8 290 M M 0 1 M M 8 42 16 29 -7 36 0 0.00 0.0 5 6.4 18 310 M M 2 27 310 9 35 14 25 -11 40 0 0.00 0.0 4 4.2 9 120 M M 0 M M 10 47 20 34 -1 31 0 0.02 0.0 4 1.3 6 110 M M 3 M M 11 38 31 35 0 30 0 0.36 0.0 3 3.6 10 100 M M 10 16 M M 12 37 33 35 0 30 0 0.00 0.0 2 6.2 10 300 M M 10 20 300 13 33 32 33 -1 32 0 0.49 T T 6.4 18 90 M M 10 18 23 90 14 36 31 34 0 31 0 T 0.0 T 14.4 27 310 M M 10 1 38 290 15 46 29 38 4 27 0 0.00 0.0 0 11.5 20 300 M M 1 28 300 16 43 27 35 1 30 0 0.00 0.0 0 11.6 23 290 M M 5 39 290 17 37 24 31 -3 34 0 T 0.0 0 2.6 7 130 M M M M M 18 40 27 34 1 31 0 0.00 0.0 0 4.9 8 120 M M 9 M M 19 55 35 45 12 20 0 0.07 0.0 0 4.0 13 180 M M 9 18 190 20 55 35 45 12 20 0 0.34 0.0 0 11.4 21 310 M M 5 30 290 21 48 33 41 8 24 0 0.00 0.0 0 13.8 21 280 M M 0 32 280 22 53 31 42 9 23 0 0.00 0.0 0 10.1 24 270 M M 3 33 270 23 47 31 39 7 26 0 0.00 0.0 0 11.4 22 280 M M 0 30 280 24 40 30 35 3 30 0 1.05 T 0 5.0 14 300 M M 10 16 20 290 25 35 26 31 -1 34 0 0.03 0.3 T 12.9 28 290 M M 10 6 48 290 26 31 21 26 -6 39 0 T T 0 12.9 23 320 M M 5 37 310 27 42 18 30 -2 35 0 0.00 0.0 0 4.3 10 290 M M 1 M M 28 40 23 32 0 33 0 0.00 0.0 0 8.8 15 280 M M 3 20 280 29 54 26 40 8 25 0 0.00 0.0 0 8.8 20 280 M M 0 29 280 30 50 23 37 6 28 0 0.00 0.0 0 0.9 8 120 M M 1 M M 31 62 27 45 14 20 0 T 0.0 0 2.8 12 220 M M 4 21 220 ================================================================================ SM 1286 754 988 0 3.81 9.3 227.2 M 135 ================================================================================ AV 41.5 24.3 7.3 FASTST PSBL % 5 MAX(MPH) MISC ----> 28 290 48 290 ================================================================================ 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: DECEMBER YEAR: 2002 LATITUDE: 37 13 N LONGITUDE: 80 25 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 32.9 TOTAL FOR MONTH: 3.81 1 = FOG DPTR FM NORMAL: -1.2 DPTR FM NORMAL: 0.94 2 = FOG REDUCING VISIBILITY HIGHEST: 62 ON 31 GRTST 24HR 1.05 ON 24-24 TO 1/4 MILE OR LESS LOWEST: -1 ON 7 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 9.3 INCHES 5 = HAIL GRTST 24HR 7.0 ON 4- 4 6 = GLAZE OR RIME GRTST DEPTH: 7 ON 5, 4 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: 5 0.01 INCH OR MORE: 9 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 6 MIN 32 OR BELOW: 27 0.50 INCH OR MORE: 3 MIN 0 OR BELOW: 1 1.00 INCH OR MORE: 1 [HDD (BASE 65) ] TOTAL THIS MO. 988 CLEAR (SCALE 0-3) 12 DPTR FM NORMAL 29 PTCLDY (SCALE 4-7) 9 SEASONAL TOTAL 2062 CLOUDY (SCALE 8-10) 8 DPTR FM NORMAL -58 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL 0 [PRESSURE DATA] SEASONAL TOTAL 803 HIGHEST SLP M ON M DPTR FM NORMAL 273 LOWEST SLP M ON M [REMARKS]