PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: PITTSBURGH MONTH: DECEMBER YEAR: 2002 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 AVG MX 2MIN DY MAX MIN AVG DEP HDD CDD WTR SNW DPTH SPD SPD DIR MIN PSBL S-S WX SPD DR ================================================================================ 1 29 21 25 -12 40 0 T 0.1 1 16.7 28 280 M M 8 9 35 270 2 36 20 28 -9 37 0 T 0.4 T 12.0 35 350 M M 10 1 38 350 3 23 12 18 -18 47 0 T T 0 8.0 18 350 M M 2 21 350 4 25 7 16 -20 49 0 0.00 0.0 0 2.7 9 50 M M 8 12 50 5 28 22 25 -11 40 0 0.29 4.8 4 6.6 12 40 M M 10 1 14 50 6 26 17 22 -13 43 0 T 0.3 4 7.5 20 280 M M 7 1 20 260 7 36 17 27 -8 38 0 0.00 0.0 3 9.9 20 220 M M 1 25 220 8 35 18 27 -8 38 0 T T 2 12.1 23 280 M M 8 1 28 280 9 28 9 19 -15 46 0 T T 2 2.8 9 50 M M 4 8 12 50 10 36 15 26 -8 39 0 0.00 0.0 2 2.0 7 10 M M 7 10 340 11 33 26 30 -4 35 0 0.27 0.3 1 4.8 9 30 M M 10 146 12 30 12 38 32 35 2 30 0 0.01 T 1 5.2 8 240 M M 10 18 15 260 13 37 32 35 2 30 0 0.36 0.0 0 7.4 14 50 M M 10 1 18 80 14 36 32 34 1 31 0 0.39 1.7 1 13.4 23 310 M M 10 1 29 310 15 43 33 38 5 27 0 T 0.0 0 12.5 22 290 M M 9 1 28 280 16 37 22 30 -2 35 0 0.01 0.1 0 12.1 23 310 M M 8 1 29 310 17 34 20 27 -5 38 0 T 0.0 0 7.1 14 80 M M 8 1 17 90 18 47 32 40 8 25 0 T 0.0 0 7.5 12 110 M M 9 14 110 19 61 38 50 19 15 0 0.37 0.0 0 7.5 21 200 M M 10 27 210 20 56 37 47 16 18 0 0.09 T 0 12.9 26 270 M M 9 31 210 21 42 31 37 6 28 0 0.07 1.4 T 11.9 25 270 M M 7 9 32 260 22 42 31 37 6 28 0 0.06 T 0 12.3 26 270 M M 9 1 33 270 23 39 28 34 3 31 0 T T 0 12.9 26 260 M M 8 35 280 24 31 21 26 -4 39 0 0.03 T 0 6.8 14 90 M M 8 146 22 80 25 35 28 32 2 33 0 0.38 1.8 1 13.6 26 310 M M 10 146 32 290 26 29 24 27 -3 38 0 T T T 12.2 25 290 M M 10 31 300 27 28 24 26 -4 39 0 0.00 0.0 0 5.4 12 260 M M 0 16 270 28 33 20 27 -2 38 0 0.01 0.1 0 6.5 15 210 M M 0 1 22 220 29 34 26 30 1 35 0 0.00 0.0 0 4.1 9 80 M M 8 1 12 80 30 47 25 36 7 29 0 0.09 0.0 0 6.0 13 130 M M 6 1 15 180 31 56 41 49 20 16 0 0.14 0.0 0 8.2 20 190 M M 10 12 24 200 ================================================================================ SM 1140 761 1055 0 2.57 11.0 270.6 M 234 ================================================================================ AV 36.8 24.5 8.7 FASTST PSBL % 8 MAX(MPH) MISC ----> 35 350 38 350 ================================================================================ 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 MONTH: DECEMBER YEAR: 2002 LATITUDE: 40 30 N LONGITUDE: 80 13 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 30.7 TOTAL FOR MONTH: 2.57 1 = FOG DPTR FM NORMAL: -1.8 DPTR FM NORMAL: -0.29 2 = FOG REDUCING VISIBILITY HIGHEST: 61 ON 19 GRTST 24HR 0.39 ON 14-14 TO 1/4 MILE OR LESS LOWEST: 7 ON 4 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 11.0 INCHES 5 = HAIL GRTST 24HR 4.8 ON 5- 5 6 = GLAZE OR RIME GRTST DEPTH: 4 ON 6, 5 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: 9 0.01 INCH OR MORE: 15 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 7 MIN 32 OR BELOW: 27 0.50 INCH OR MORE: 0 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 1055 CLEAR (SCALE 0-3) 4 DPTR FM NORMAL 59 PTCLDY (SCALE 4-7) 5 SEASONAL TOTAL 2284 CLOUDY (SCALE 8-10) 22 DPTR FM NORMAL 90 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL 0 [PRESSURE DATA] SEASONAL TOTAL 1038 HIGHEST SLP 30.52 ON 15 DPTR FM NORMAL 312 LOWEST SLP 29.44 ON 17 [REMARKS]