PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: PITTSBURGH PA MONTH: DECEMBER YEAR: 2011 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 40 25 33 -4 32 0 0.00 0.0 0 2.4 10 240 M M 2 128 14 240 2 43 25 34 -3 31 0 0.00 0.0 0 3.4 15 330 M M 5 18 21 310 3 49 25 37 1 28 0 0.00 0.0 0 3.0 9 120 M M 4 18 12 80 4 60 35 48 12 17 0 0.00 0.0 0 5.5 15 210 M M 7 22 210 5 61 48 55 19 10 0 0.16 0.0 0 3.7 9 210 M M 10 1 M M 6 52 39 46 11 19 0 0.05 0.0 0 7.8 14 340 M M 8 1 16 340 7 40 30 35 0 30 0 0.09 T 0 10.4 22 300 M M 10 1 29 300 8 35 28 32 -2 33 0 0.00 0.0 0 7.4 16 280 M M 6 18 280 9 43 28 36 2 29 0 T T 0 5.6 18 240 M M 9 26 240 10 34 21 28 -6 37 0 T T 0 7.2 16 300 M M 3 20 310 11 37 16 27 -7 38 0 0.00 0.0 0 1.2 9 160 M M 0 12 210 12 44 17 31 -2 34 0 0.00 0.0 0 0.7 8 200 M M 4 8 10 210 13 46 21 34 1 31 0 T 0.0 0 1.3 8 200 M M 6 10 220 14 48 37 43 11 22 0 0.03 0.0 0 3.1 9 180 M M 10 18 13 160 15 58 41 50 18 15 0 0.14 0.0 0 15.6 30 280 M M 10 18 40 270 16 41 33 37 5 28 0 0.00 0.0 0 8.2 29 300 M M 10 33 300 17 33 29 31 -1 34 0 0.09 0.6 0 6.7 15 320 M M 10 1 17 320 18 36 28 32 1 33 0 0.01 0.3 1 5.0 17 280 M M 8 18 21 270 19 45 30 38 7 27 0 T 0.0 0 10.2 21 230 M M 6 30 230 20 45 36 41 10 24 0 0.30 0.0 0 3.8 14 360 M M 10 12 17 240 21 60 42 51 20 14 0 0.37 0.0 0 6.5 30 280 M M 9 13 38 280 22 49 40 45 15 20 0 0.39 0.0 0 5.5 18 340 M M 10 1 24 330 23 40 31 36 6 29 0 0.03 T 0 8.4 17 320 M M 8 1 21 320 24 38 29 34 4 31 0 T T 0 3.9 17 310 M M 7 21 310 25 46 29 38 8 27 0 T 0.0 0 12.0 29 310 M M 4 36 310 26 41 32 37 7 28 0 T T 0 6.7 20 290 M M 7 24 300 27 42 33 38 8 27 0 0.72 T 0 6.9 23 280 M M 10 12 30 280 28 35 22 29 0 36 0 T 0.1 0 14.7 31 300 M M 7 1 38 300 29 41 19 30 1 35 0 0.01 0.2 0 4.6 12 190 M M 8 1 18 210 30 51 39 45 16 20 0 0.07 0.0 0 7.9 21 270 M M 9 1 26 270 31 44 39 42 13 23 0 0.01 0.0 0 6.8 14 270 M M 10 1 20 260 ================================================================================ SM 1377 947 842 0 2.47 1.2 196.1 M 227 ================================================================================ AV 44.4 30.5 6.3 FASTST M M 7 MAX(MPH) MISC ----> # 31 300 # 40 270 ================================================================================ 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: 2011 LATITUDE: 40 30 N LONGITUDE: 80 13 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 37.5 TOTAL FOR MONTH: 2.47 1 = FOG OR MIST DPTR FM NORMAL: 5.1 DPTR FM NORMAL: -0.38 2 = FOG REDUCING VISIBILITY HIGHEST: 61 ON 5 GRTST 24HR 0.72 ON 27-27 TO 1/4 MILE OR LESS LOWEST: 16 ON 11 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 1.2 INCHES 5 = HAIL GRTST 24HR 0.6 ON M 6 = FREEZING RAIN OR DRIZZLE GRTST DEPTH: 1 ON 18 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: 0 0.01 INCH OR MORE: 15 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 6 MIN 32 OR BELOW: 19 0.50 INCH OR MORE: 1 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 842 CLEAR (SCALE 0-3) 3 DPTR FM NORMAL -170 PTCLDY (SCALE 4-7) 13 TOTAL FM JUL 1 1837 CLOUDY (SCALE 8-10) 15 DPTR FM NORMAL -338 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL 0 [PRESSURE DATA] TOTAL FM JAN 1 1009 HIGHEST SLP 30.68 ON 11 DPTR FM NORMAL 273 LOWEST SLP 29.38 ON 27 [REMARKS]