PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: BLACKSBURG MONTH: DECEMBER YEAR: 2007 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 52 33 43 5 22 0 0.00 0.0 0 6.4 13 300 M M 1 20 300 2 47 33 40 2 25 0 0.09 0.0 0 2.2 7 300 M M 5 M M 3 54 27 41 4 24 0 T T 0 14.1 24 300 M M 8 37 300 4 36 24 30 -7 35 0 0.00 0.0 0 9.3 15 290 M M 1 27 290 5 37 22 30 -7 35 0 0.05 0.5 0 4.0 20 340 M M 9 1 21 340 6 39 15 27 -9 38 0 T T 0 3.5 14 340 M M 1 20 340 7 41 21 31 -5 34 0 0.11 T 0 1.4 5 240 M M 9 146 M M 8 54 36 45 9 20 0 0.01 0.0 0 0.7 6 280 M M 9 1 M M 9 63 47 55 20 10 0 0.07 0.0 0 1.2 6 110 M M 9 12 M M 10 67 50 59 24 6 0 T 0.0 0 5.6 13 270 M M 9 17 270 11 71 44 58 23 7 0 0.00 0.0 0 2.9 9 230 M M 6 12 M M 12 66 42 54 19 11 0 T 0.0 0 4.6 16 270 M M 6 25 280 13 57 44 51 17 14 0 0.04 0.0 0 6.3 12 310 M M 8 M M 14 51 29 40 6 25 0 0.00 0.0 0 6.7 13 310 M M 2 20 310 15 35 27 31 -3 34 0 0.67 0.0 0 5.8 10 100 M M 8 16 M M 16 41 25 33 -1 32 0 0.21 T 0 10.8 25 280 M M 10 1 41 280 17 32 22 27 -7 38 0 T T 0 12.9 25 300 M M 4 33 310 18 45 17 31 -2 34 0 0.00 0.0 0 2.9 9 290 M M 1 M M 19 44 26 35 2 30 0 T T 0 3.2 9 300 M M 8 17 300 20 52 24 38 5 27 0 0.01 T T 2.4 8 90 M M 3 M M 21 36 31 34 1 31 0 0.19 0.3 T 5.2 7 80 M M 10 M M 22 41 31 36 3 29 0 0.04 0.0 0 4.2 7 90 M M 10 12 M M 23 57 34 46 14 19 0 0.16 0.0 0 11.2 18 290 M M 6 1 29 260 24 46 28 37 5 28 0 0.00 0.0 0 6.6 12 270 M M 1 21 280 25 49 29 39 7 26 0 0.00 0.0 0 2.8 8 300 M M 1 M M 26 51 27 39 7 26 0 0.00 0.0 0 1.6 7 50 M M 4 M M 27 55 28 42 10 23 0 0.02 0.0 0 2.8 13 290 M M 5 1 20 280 28 43 27 35 3 30 0 0.77 0.0 0 4.3 9 120 M M 10 1 M M 29 54 34 44 12 21 0 T 0.0 0 3.4 9 270 M M 6 1 M M 30 42 33 38 6 27 0 0.23 0.0 0 3.7 10 100 M M 8 12 M M 31 48 27 38 7 27 0 0.00 0.0 0 5.3 13 300 M M 1 21 300 ================================================================================ SM 1506 937 788 0 2.67 0.8 158.0 M 179 ================================================================================ AV 48.6 30.2 5.1 FASTST PSBL % 6 MAX(MPH) MISC ----> 25 M 41 M ================================================================================ 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: 2007 LATITUDE: 37 13 N LONGITUDE: 80 25 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 39.4 TOTAL FOR MONTH: 2.67 1 = FOG OR MIST DPTR FM NORMAL: 5.3 DPTR FM NORMAL: -0.20 2 = FOG REDUCING VISIBILITY HIGHEST: 71 ON 11 GRTST 24HR 0.77 ON 28-28 TO 1/4 MILE OR LESS LOWEST: 15 ON 6 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 0.8 INCH 5 = HAIL GRTST 24HR 0.5 ON 5- 5 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: 1 0.01 INCH OR MORE: 15 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 7 MIN 32 OR BELOW: 20 0.50 INCH OR MORE: 2 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 788 CLEAR (SCALE 0-3) 8 DPTR FM NORMAL -171 PTCLDY (SCALE 4-7) 12 TOTAL FM JUL 1 1724 CLOUDY (SCALE 8-10) 11 DPTR FM NORMAL -442 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL 0 [PRESSURE DATA] TOTAL FM JAN 1 864 HIGHEST SLP M ON M DPTR FM NORMAL 331 LOWEST SLP M ON M [REMARKS]