PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: CHICAGO-OHARE MONTH: AUGUST YEAR: 2002 LATITUDE: 41 58 N LONGITUDE: 87 54 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 94 75 85 11 0 20 T 0.0 0 11.2 20 200 M M 5 3 25 200 2 81 63 72 -2 0 7 0.05 0.0 0 10.3 17 60 M M 3 24 50 3 90 59 75 1 0 10 0.00 0.0 0 5.6 14 80 M M 3 1 24 70 4 89 74 82 9 0 17 0.68 0.0 0 6.9 22 330 M M 9 138 29 80 5 84 69 77 4 0 12 0.00 0.0 0 10.2 23 40 M M 7 18 29 20 6 74 63 69 -4 0 4 0.00 0.0 0 12.4 20 50 M M 4 30 60 7 76 58 67 -6 0 2 0.00 0.0 0 8.5 16 50 M M 2 26 50 8 80 58 69 -4 0 4 0.00 0.0 0 6.1 14 80 M M 1 24 60 9 83 57 70 -3 0 5 0.00 0.0 0 5.6 16 70 M M 0 1 28 100 10 89 59 74 1 0 9 0.00 0.0 0 6.0 15 240 M M 3 1 24 270 11 93 67 80 7 0 15 0.00 0.0 0 6.7 20 190 M M 4 18 24 210 12 89 68 79 6 0 14 0.08 0.0 0 9.0 22 280 M M 6 138 26 270 13 85 67 76 4 0 11 2.45 0.0 0 7.4 21 170 M M 9 13 26 290 14 77 63 70 -2 0 5 T 0.0 0 6.4 14 270 M M 6 1 18 250 15 85 62 74 2 0 9 0.00 0.0 0 10.0 23 220 M M 6 1 30 240 16 81 69 75 3 0 10 T 0.0 0 7.1 15 170 M M 9 1 22 20 17 87 65 76 4 0 11 0.00 0.0 0 12.0 23 200 M M 7 1 30 260 18 79 53 66 -6 0 1 0.00 0.0 0 5.0 13 90 M M 3 21 60 19 74 57 66 -5 0 1 0.27 0.0 0 7.0 20 10 M M 7 13 24 50 20 76 55 66 -5 0 1 0.00 0.0 0 6.6 15 110 M M 4 29 70 21 87 62 75 4 0 10 T 0.0 0 11.2 23 180 M M 8 38 29 180 22 81 67 74 3 0 9 4.45 0.0 0 6.6 26 300 M M 10 13 35 290 23 78 67 73 2 0 8 0.07 0.0 0 4.1 14 140 M M 9 18 21 50 24 83 65 74 4 0 9 0.01 0.0 0 4.1 12 330 M M 8 1 20 50 25 84 64 74 4 0 9 T 0.0 0 5.6 15 50 M M 5 1 21 60 26 81 66 74 4 0 9 0.00 0.0 0 6.2 13 50 M M 4 12 23 50 27 83 65 74 4 0 9 0.00 0.0 0 9.2 17 40 M M 3 1 25 30 28 79 65 72 2 0 7 0.00 0.0 0 7.7 15 60 M M 3 8 24 100 29 78 61 70 1 0 5 0.00 0.0 0 6.4 14 40 M M 2 1 24 60 30 83 62 73 4 0 8 0.00 0.0 0 7.2 15 60 M M 3 1 25 80 31 83 63 73 4 0 8 0.00 0.0 0 4.6 13 80 M M 2 18 24 80 ================================================================================ SM 2566 1968 0 259 8.06 0.0 232.9 M 155 ================================================================================ AV 82.8 63.5 7.5 FASTST PSBL % 5 MAX(MPH) MISC ----> 26 300 35 290 ================================================================================ NOTES: # LAST OF SEVERAL OCCURRENCES COLUMN 17 PEAK WIND IN M.P.H. . PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2 STATION: CHICAGO-OHARE MONTH: AUGUST YEAR: 2002 LATITUDE: 41 58 N LONGITUDE: 87 54 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 73.1 TOTAL FOR MONTH: 8.06 1 = FOG DPTR FM NORMAL: 1.4 DPTR FM NORMAL: 3.44 2 = FOG REDUCING VISIBILITY HIGHEST: 94 ON 1 GRTST 24HR 4.45 ON 22-22 TO 1/4 MILE OR LESS LOWEST: 53 ON 18 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 0.0 INCH 5 = HAIL GRTST 24HR 0.0 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: 8 MAX 90 OR ABOVE: 3 0.10 INCH OR MORE: 4 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 3 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 2 [HDD (BASE 65) ] TOTAL THIS MO. 0 CLEAR (SCALE 0-3) 12 DPTR FM NORMAL -9 PTCLDY (SCALE 4-7) 12 SEASONAL TOTAL 0 CLOUDY (SCALE 8-10) 7 DPTR FM NORMAL -15 [CDD (BASE 65) ] TOTAL THIS MO. 259 DPTR FM NORMAL 26 [PRESSURE DATA] SEASONAL TOTAL 940 HIGHEST SLP M ON M DPTR FM NORMAL 211 LOWEST SLP M ON M [REMARKS]