PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: CHICAGO-OHARE MONTH: SEPTEMBER YEAR: 2003 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 65 61 63 -5 2 0 0.32 0.0 0 9.9 17 40 M M 10 1 25 40 2 74 60 67 -1 0 2 0.00 0.0 0 7.0 15 70 M M 5 1 26 70 3 83 60 72 4 0 7 0.00 0.0 0 9.1 18 340 M M 3 1 26 340 4 72 52 62 -6 3 0 0.00 0.0 0 9.0 17 340 M M 3 25 70 5 75 48 62 -5 3 0 0.00 0.0 0 3.9 16 140 M M 1 18 110 6 81 50 66 -1 0 1 0.00 0.0 0 4.4 12 230 M M 1 15 250 7 86 60 73 6 0 8 0.00 0.0 0 4.5 10 240 M M 0 18 15 240 8 84 59 72 6 0 7 0.00 0.0 0 2.4 10 140 M M 7 8 13 150 9 82 62 72 6 0 7 0.00 0.0 0 4.6 15 110 M M 3 18 23 70 10 83 61 72 6 0 7 0.00 0.0 0 8.2 17 100 M M 3 18 25 110 11 84 63 74 9 0 9 0.00 0.0 0 11.5 21 130 M M 2 18 24 130 12 83 61 72 7 0 7 0.05 0.0 0 9.9 22 170 M M 8 18 26 180 13 82 68 75 10 0 10 0.02 0.0 0 8.1 17 170 M M 9 18 22 160 14 75 58 67 2 0 2 0.53 0.0 0 8.2 18 290 M M 9 1 23 300 15 74 52 63 -1 2 0 0.00 0.0 0 8.1 20 270 M M 4 26 250 16 82 50 66 2 0 1 0.00 0.0 0 6.4 18 240 M M 1 1 24 240 17 82 53 68 5 0 3 0.00 0.0 0 8.1 24 160 M M 0 28 150 18 81 54 68 5 0 3 0.00 0.0 0 8.5 18 120 M M 0 18 23 90 19 67 48 58 -5 7 0 T 0.0 0 11.3 23 310 M M 4 28 300 20 71 41 56 -6 9 0 0.00 0.0 0 4.6 15 100 M M 2 24 80 21 76 47 62 0 3 0 0.06 0.0 0 8.1 17 190 M M 8 1 22 190 22 69 55 62 0 3 0 0.18 0.0 0 9.8 24 310 M M 8 1 30 310 23 70 48 59 -2 6 0 0.00 0.0 0 8.9 17 240 M M 2 23 280 24 71 53 62 1 3 0 T 0.0 0 10.7 23 300 M M 8 18 30 300 25 61 45 53 -8 12 0 0.00 0.0 0 7.6 14 310 M M 5 18 80 26 65 48 57 -3 8 0 0.56 0.0 0 8.1 20 180 M M 9 13 23 160 27 61 46 54 -6 11 0 T 0.0 0 10.8 20 280 M M 5 25 270 28 58 46 52 -7 13 0 T 0.0 0 11.0 23 320 M M 9 26 320 29 58 41 50 -9 15 0 T 0.0 0 7.4 18 300 M M 5 8 23 300 30 56 39 48 -11 17 0 T 0.0 0 9.1 20 260 M M 6 25 260 ================================================================================ SM 2211 1589 117 74 1.72 0.0 239.2 M 140 ================================================================================ AV 73.7 53.0 8.0 FASTST PSBL % 5 MAX(MPH) MISC ----> # 24 310 # 30 300 ================================================================================ 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: 2003 LATITUDE: 41 58 N LONGITUDE: 87 54 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 63.4 TOTAL FOR MONTH: 1.72 1 = FOG DPTR FM NORMAL: -0.4 DPTR FM NORMAL: -1.55 2 = FOG REDUCING VISIBILITY HIGHEST: 86 ON 7 GRTST 24HR 0.57 ON 26-27 TO 1/4 MILE OR LESS LOWEST: 39 ON 30 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: 7 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 4 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 2 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 117 CLEAR (SCALE 0-3) 13 DPTR FM NORMAL 5 PTCLDY (SCALE 4-7) 8 SEASONAL TOTAL 117 CLOUDY (SCALE 8-10) 9 DPTR FM NORMAL -10 [CDD (BASE 65) ] TOTAL THIS MO. 74 DPTR FM NORMAL -17 [PRESSURE DATA] SEASONAL TOTAL 693 HIGHEST SLP M ON M DPTR FM NORMAL -127 LOWEST SLP M ON M [REMARKS]