PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: PITTSBURGH PA MONTH: DECEMBER YEAR: 2010 LATITUDE: 40 30 N LONGITUDE: 80 13 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 51 27 39 2 26 0 0.64 2.0 0 10.4 23 300 M M 10 1 29 310 2 29 27 28 -9 37 0 0.01 0.4 2 5.5 15 230 M M 10 21 240 3 30 23 27 -9 38 0 T 0.1 2 5.8 13 310 M M 9 15 290 4 30 19 25 -11 40 0 T T 0 4.6 22 340 M M 8 1 28 340 5 28 24 26 -10 39 0 0.02 0.5 0 14.7 25 280 M M 9 33 280 6 26 20 23 -12 42 0 0.04 0.5 1 15.8 26 270 M M 10 32 290 7 24 18 21 -14 44 0 T T 1 13.5 24 290 M M 9 33 280 8 27 19 23 -12 42 0 T 0.1 0 9.9 20 280 M M 8 25 290 9 26 17 22 -12 43 0 T 0.2 0 3.7 8 270 M M 9 18 14 250 10 37 23 30 -4 35 0 0.03 0.3 1 6.3 14 210 M M 9 18 17 200 11 47 24 36 2 29 0 T T 0 5.2 15 120 M M 7 18 120 12 41 23 32 -1 33 0 0.46 0.1 0 8.1 15 230 M M 10 12 31 230 13 23 14 19 -14 46 0 0.13 4.0 0 18.1 28 290 M M 10 19 33 300 14 17 12 15 -18 50 0 0.02 0.5 4 15.1 28 280 M M 9 9 37 300 15 22 12 17 -16 48 0 T T 3 9.9 20 280 M M 7 24 290 16 25 10 18 -14 47 0 0.00 0.0 1 3.0 9 350 M M 8 10 350 17 28 17 23 -9 42 0 T T 1 7.0 15 270 M M 10 21 270 18 27 18 23 -9 42 0 0.00 0.0 1 6.6 15 240 M M 7 21 240 19 26 12 19 -12 46 0 0.01 0.3 1 3.7 13 270 M M 5 18 17 270 20 27 20 24 -7 41 0 0.02 0.3 1 6.8 15 280 M M 10 1 18 330 21 29 19 24 -7 41 0 0.00 0.0 1 2.3 9 270 M M 10 13 270 22 30 27 29 -2 36 0 T T 1 8.1 22 320 M M 10 18 28 330 23 30 26 28 -3 37 0 0.05 0.6 1 13.5 23 320 M M 10 1 30 320 24 29 25 27 -3 38 0 T T 2 6.9 16 320 M M 9 1 18 320 25 29 23 26 -4 39 0 0.04 0.7 2 6.2 13 340 M M 10 1 17 10 26 25 19 22 -8 43 0 0.02 1.1 2 13.2 26 350 M M 9 18 35 330 27 26 18 22 -8 43 0 0.01 0.5 3 17.3 30 300 M M 9 36 310 28 31 15 23 -6 42 0 0.00 0.0 3 9.6 18 230 M M 6 1 24 230 29 37 24 31 2 34 0 0.00 0.0 2 4.8 12 230 M M 6 16 230 30 40 23 32 3 33 0 0.06 0.0 1 3.5 7 130 M M 8 16 M M 31 59 33 46 17 19 0 0.00 0.0 0 4.9 17 210 M M 7 1 22 200 ================================================================================ SM 956 631 1215 0 1.56 12.2 264.0 M 268 ================================================================================ AV 30.8 20.4 8.5 FASTST M M 9 MAX(MPH) MISC ----> # 30 300 # 37 300 ================================================================================ NOTES: # LAST OF SEVERAL OCCURRENCES COLUMN 17 PEAK WIND IN M.P.H. PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2 STATION: PITTSBURGH PA MONTH: DECEMBER YEAR: 2010 LATITUDE: 40 30 N LONGITUDE: 80 13 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 25.6 TOTAL FOR MONTH: 1.56 1 = FOG OR MIST DPTR FM NORMAL: -6.9 DPTR FM NORMAL: -1.30 2 = FOG REDUCING VISIBILITY HIGHEST: 59 ON 31 GRTST 24HR 3.38 ON 30- 1 TO 1/4 MILE OR LESS LOWEST: 10 ON 16 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 12.2 INCHES 5 = HAIL GRTST 24HR 4.0 ON 13-13 6 = FREEZING RAIN OR DRIZZLE GRTST DEPTH: 4 ON 14 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: 24 0.01 INCH OR MORE: 15 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 3 MIN 32 OR BELOW: 30 0.50 INCH OR MORE: 1 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 1215 CLEAR (SCALE 0-3) 0 DPTR FM NORMAL 219 PTCLDY (SCALE 4-7) 11 TOTAL FM JUL 1 2316 CLOUDY (SCALE 8-10) 20 DPTR FM NORMAL 122 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL 0 [PRESSURE DATA] TOTAL FM JAN 1 1029 HIGHEST SLP M ON M DPTR FM NORMAL 303 LOWEST SLP 28.78 ON 29 [REMARKS]