PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: CHICAGO-OHARE MONTH: MARCH 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 27 19 23 -9 42 0 T 0.1 1 16.3 26 320 M M 7 1 35 320 2 27 13 20 -12 45 0 0.00 0.0 1 10.8 20 330 M M 1 8 23 340 3 34 14 24 -9 41 0 0.00 0.0 0 4.5 12 260 M M 3 14 230 4 44 20 32 -1 33 0 0.03 0.0 0 4.9 14 200 M M 8 18 18 70 5 41 35 38 5 27 0 0.00 0.0 0 8.8 15 20 M M 7 128 22 330 6 64 35 50 16 15 0 T 0.0 0 14.8 24 220 M M 3 8 36 230 7 57 27 42 8 23 0 0.02 T 0 16.1 28 280 M M 9 38 35 220 8 30 18 24 -10 41 0 T T 0 10.4 18 340 M M 4 28 10 9 30 18 24 -11 41 0 0.00 0.0 0 9.6 20 330 M M 3 24 320 10 37 20 29 -6 36 0 0.17 1.5 0 10.6 22 340 M M 9 18 25 330 11 35 25 30 -6 35 0 0.05 0.6 1 14.5 24 270 M M 8 18 32 240 12 34 18 26 -10 39 0 T T 1 12.8 28 320 M M 6 1 35 330 13 33 13 23 -13 42 0 0.00 0.0 0 5.8 13 300 M M 2 21 300 14 36 21 29 -8 36 0 T T 0 5.5 12 290 M M 9 8 14 290 15 41 21 31 -6 34 0 0.00 0.0 0 8.9 20 270 M M 2 8 24 270 16 50 24 37 0 28 0 T 0.0 0 9.5 21 280 M M 3 26 280 17 35 29 32 -6 33 0 0.06 0.6 1 8.2 17 70 M M 10 18 23 70 18 44 33 39 1 26 0 0.02 0.0 0 10.3 20 90 M M 9 18 28 80 19 51 33 42 4 23 0 0.11 0.0 0 11.1 18 290 M M 8 18 24 360 20 41 27 34 -5 31 0 0.00 0.0 0 9.4 16 340 M M 8 22 50 21 38 26 32 -7 33 0 0.00 0.0 0 9.2 16 60 M M 6 1 25 50 22 42 31 37 -2 28 0 0.02 T 0 14.8 25 40 M M 8 31 30 23 40 27 34 -6 31 0 0.10 0.3 0 14.0 22 40 M M 7 1 26 50 24 50 22 36 -4 29 0 0.09 T 0 4.8 12 20 M M 7 18 16 70 25 39 33 36 -5 29 0 0.19 0.1 0 11.8 21 70 M M 10 128 32 40 26 44 30 37 -4 28 0 T T 0 6.1 12 20 M M 8 1 21 70 27 49 26 38 -3 27 0 0.00 0.0 0 4.5 14 110 M M 5 128 24 70 28 60 27 44 2 21 0 0.00 0.0 0 5.7 14 100 M M 4 18 24 20 29 71 33 52 10 13 0 0.00 0.0 0 11.5 24 170 M M 8 29 160 30 77 54 66 24 0 1 0.62 0.0 0 15.1 30 260 M M 8 3 41 260 31 59 39 49 7 16 0 T 0.0 0 14.9 29 280 M M 7 18 38 260 ================================================================================ SM 1360 811 926 1 1.48 3.2 315.2 M 197 ================================================================================ AV 43.9 26.2 10.2 FASTST PSBL % 6 MAX(MPH) MISC ----> 30 260 41 260 ================================================================================ 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: MARCH YEAR: 2005 LATITUDE: 41 58 N LONGITUDE: 87 54 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 35.0 TOTAL FOR MONTH: 1.48 1 = FOG DPTR FM NORMAL: -2.3 DPTR FM NORMAL: -1.17 2 = FOG REDUCING VISIBILITY HIGHEST: 77 ON 30 GRTST 24HR 0.62 ON 30-30 TO 1/4 MILE OR LESS LOWEST: 13 ON 13, 2 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 3.2 INCHES 5 = HAIL GRTST 24HR 1.5 ON 10-10 6 = GLAZE OR RIME GRTST DEPTH: 1 ON 17,12 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: 4 0.01 INCH OR MORE: 12 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 5 MIN 32 OR BELOW: 23 0.50 INCH OR MORE: 1 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 926 CLEAR (SCALE 0-3) 7 DPTR FM NORMAL 68 PTCLDY (SCALE 4-7) 10 SEASONAL TOTAL 5252 CLOUDY (SCALE 8-10) 14 DPTR FM NORMAL -452 [CDD (BASE 65) ] TOTAL THIS MO. 1 DPTR FM NORMAL 0 [PRESSURE DATA] SEASONAL TOTAL 1 HIGHEST SLP 30.31 ON 15 DPTR FM NORMAL 0 LOWEST SLP 29.26 ON 12 [REMARKS]