PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: CHICAGO-OHARE MONTH: SEPTEMBER YEAR: 2005 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 85 66 76 8 0 11 0.00 0.0 0 7.9 18 280 M M 4 30 20 2 83 61 72 4 0 7 0.00 0.0 0 9.5 21 310 M M 2 24 320 3 80 58 69 1 0 4 0.00 0.0 0 6.2 14 60 M M 2 24 60 4 84 56 70 2 0 5 0.00 0.0 0 4.2 12 90 M M 6 21 70 5 87 58 73 6 0 8 0.00 0.0 0 7.2 15 200 M M 3 17 200 6 87 60 74 7 0 9 0.00 0.0 0 5.1 14 90 M M 6 18 100 7 88 67 78 11 0 13 0.07 0.0 0 4.4 21 30 M M 8 138 24 30 8 80 64 72 6 0 7 0.00 0.0 0 7.8 14 50 M M 7 18 26 60 9 87 61 74 8 0 9 0.00 0.0 0 6.2 16 90 M M 2 8 21 80 10 92 67 80 14 0 15 0.00 0.0 0 8.8 20 130 M M 2 18 23 130 11 90 69 80 15 0 15 0.00 0.0 0 7.5 13 200 M M 1 8 17 210 12 90 68 79 14 0 14 0.00 0.0 0 8.0 18 200 M M 1 8 22 210 13 94 71 83 18 0 18 0.01 0.0 0 10.0 24 290 M M 7 8 30 300 14 76 57 67 2 0 2 0.16 0.0 0 8.2 16 280 M M 6 13 24 60 15 70 54 62 -2 3 0 0.34 0.0 0 9.1 20 40 M M 8 1 31 50 16 70 54 62 -2 3 0 0.01 0.0 0 9.9 21 40 M M 7 1 25 50 17 77 52 65 2 0 0 0.00 0.0 0 5.4 13 100 M M 2 1 22 50 18 81 54 68 5 0 3 0.00 0.0 0 6.0 16 210 M M 5 21 210 19 84 65 75 12 0 10 0.50 0.0 0 9.1 28 150 M M 9 13 30 150 20 83 55 69 7 0 4 0.00 0.0 0 4.2 13 140 M M 1 18 16 280 21 87 53 70 8 0 5 0.00 0.0 0 7.9 16 200 M M 2 23 210 22 87 63 75 13 0 10 0.71 0.0 0 10.3 23 40 M M 8 138 28 10 23 67 62 65 4 0 0 0.00 0.0 0 13.6 20 60 M M 7 30 30 24 71 63 67 6 0 2 0.13 0.0 0 5.9 16 120 M M 10 13 20 110 25 75 67 71 10 0 6 0.12 0.0 0 6.9 16 200 M M 10 1 21 200 26 69 51 60 0 5 0 0.02 0.0 0 6.9 16 330 M M 7 1 23 60 27 74 47 61 1 4 0 0.00 0.0 0 4.7 13 220 M M 0 1 18 220 28 73 50 62 3 3 0 0.59 0.0 0 11.5 32 330 M M 7 1 37 320 29 62 43 53 -6 12 0 0.00 0.0 0 7.5 17 310 M M 4 21 300 30 71 44 58 -1 7 0 0.00 0.0 0 9.2 20 210 M M 1 24 220 ================================================================================ SM 2404 1760 37 177 2.66 0.0 229.1 M 145 ================================================================================ AV 80.1 58.7 7.6 FASTST PSBL % 5 MAX(MPH) MISC ----> 32 330 37 320 ================================================================================ 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: SEPTEMBER YEAR: 2005 LATITUDE: 41 58 N LONGITUDE: 87 54 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 69.4 TOTAL FOR MONTH: 2.66 1 = FOG OR MIST DPTR FM NORMAL: 5.6 DPTR FM NORMAL: -0.61 2 = FOG REDUCING VISIBILITY HIGHEST: 94 ON 13 GRTST 24HR 0.71 ON 22-22 TO 1/4 MILE OR LESS LOWEST: 43 ON 29 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 0.0 INCH 5 = HAIL GRTST 24HR 0.0 6 = FREEZING RAIN OR DRIZZLE GRTST DEPTH: 0 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: 11 MAX 90 OR ABOVE: 4 0.10 INCH OR MORE: 7 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 3 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 37 CLEAR (SCALE 0-3) 12 DPTR FM NORMAL -75 PTCLDY (SCALE 4-7) 12 TOTAL FM JUL 1 37 CLOUDY (SCALE 8-10) 6 DPTR FM NORMAL -90 [CDD (BASE 65) ] TOTAL THIS MO. 177 DPTR FM NORMAL 86 [PRESSURE DATA] TOTAL FM JAN 1 1123 HIGHEST SLP 30.29 ON 6 DPTR FM NORMAL 303 LOWEST SLP 29.66 ON 28 [REMARKS]