PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: PITTSBURGH MONTH: APRIL YEAR: 2004 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 44 34 39 -6 26 0 0.46 0.2 0 15.6 30 330 M M 10 1 36 330 2 45 36 41 -5 24 0 T 0.0 0 10.2 16 330 M M 10 1 20 320 3 55 39 47 1 18 0 0.04 0.0 0 11.9 30 290 M M 9 1 35 290 4 41 28 35 -11 30 0 0.06 0.3 0 19.2 31 300 M M 9 1 37 310 5 42 24 33 -13 32 0 T T 0 15.7 29 320 M M 2 35 300 6 57 25 41 -6 24 0 T 0.0 0 6.9 17 270 M M 6 23 270 7 61 41 51 4 14 0 T 0.0 0 8.4 22 330 M M 6 25 330 8 49 37 43 -4 22 0 0.33 0.0 0 4.6 15 60 M M 8 13 17 50 9 56 40 48 0 17 0 0.00 0.0 0 8.7 18 300 M M 6 1 26 290 10 59 32 46 -2 19 0 0.00 0.0 0 6.6 22 340 M M 6 24 350 11 48 39 44 -4 21 0 T 0.0 0 6.6 14 40 M M 9 16 60 12 46 38 42 -7 23 0 0.83 0.0 0 10.6 20 70 M M 9 1 28 70 13 46 38 42 -7 23 0 0.98 0.0 0 9.0 36 10 M M 10 1 44 10 14 53 36 45 -4 20 0 0.04 T 0 15.0 25 330 M M 7 1 30 320 15 61 33 47 -3 18 0 0.00 0.0 0 5.7 15 350 M M 0 21 330 16 74 37 56 6 9 0 0.00 0.0 0 4.5 16 200 M M 4 21 200 17 79 50 65 15 0 0 T 0.0 0 7.8 22 200 M M 6 3 28 200 18 83 57 70 19 0 5 0.00 0.0 0 8.9 22 210 M M 6 26 240 19 77 57 67 16 0 2 0.21 0.0 0 13.8 29 220 M M 9 1 37 210 20 71 46 59 8 6 0 T 0.0 0 6.4 15 330 M M 8 16 340 21 79 55 67 15 0 2 T 0.0 0 12.1 30 270 M M 8 35 260 22 67 56 62 10 3 0 0.75 0.0 0 6.8 16 50 M M 9 1 18 50 23 59 53 56 4 9 0 0.14 0.0 0 5.9 13 280 M M 9 128 15 270 24 67 43 55 2 10 0 0.00 0.0 0 5.7 14 10 M M 6 16 360 25 70 49 60 7 5 0 0.40 0.0 0 8.4 22 210 M M 10 13 29 230 26 67 50 59 6 6 0 0.06 0.0 0 10.8 24 280 M M 9 1 30 260 27 51 36 44 -10 21 0 0.13 0.2 0 9.8 32 280 M M 7 1345 39 280 28 64 32 48 -6 17 0 0.00 0.0 0 7.3 17 190 M M 3 22 200 29 78 51 65 10 0 0 0.00 0.0 0 8.7 21 200 M M 6 26 170 30 78 52 65 10 0 0 0.06 0.0 0 6.3 21 270 M M 9 1 25 270 ================================================================================ SM 1827 1244 417 9 4.49 0.7 277.9 M 216 ================================================================================ AV 60.9 41.5 9.3 FASTST PSBL % 7 MAX(MPH) MISC ----> 36 10 44 10 ================================================================================ 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: APRIL YEAR: 2004 LATITUDE: 40 30 N LONGITUDE: 80 13 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 51.2 TOTAL FOR MONTH: 4.49 1 = FOG DPTR FM NORMAL: 1.3 DPTR FM NORMAL: 1.48 2 = FOG REDUCING VISIBILITY HIGHEST: 83 ON 18 GRTST 24HR 1.55 ON 12-13 TO 1/4 MILE OR LESS LOWEST: 24 ON 5 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 0.7 INCH 5 = HAIL GRTST 24HR 0.3 ON 4- 4 6 = GLAZE OR RIME GRTST DEPTH: 0 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: 0 0.01 INCH OR MORE: 14 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 9 MIN 32 OR BELOW: 5 0.50 INCH OR MORE: 3 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 417 CLEAR (SCALE 0-3) 3 DPTR FM NORMAL -45 PTCLDY (SCALE 4-7) 11 SEASONAL TOTAL 5474 CLOUDY (SCALE 8-10) 16 DPTR FM NORMAL -112 [CDD (BASE 65) ] TOTAL THIS MO. 9 DPTR FM NORMAL 1 [PRESSURE DATA] SEASONAL TOTAL 9 HIGHEST SLP 30.33 ON 16 DPTR FM NORMAL -1 LOWEST SLP 29.42 ON 13 [REMARKS]