PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) Station: O'HARE Month: August Year: 1999 ================================================================================ TEMPERATURE IN F : :PCPN :SNOW: WIND :SUNSHINE: SKY :PK WND <====================================Columns===================================> -1- -2- -3- -4- -5- -6a/6b- -7- -8- -9- -10- -11- -12-13- -14--15a/15b--16- Day Max Min Avg Dep HDD CDD Wtr Snw Dpth Avg Spd Dir Spd Dir Sun Wx # Tmp Tmp Tmp +/- ( in inches ) ( MPH Degrees ) Min % Code ================================================================================ 1 83 64 74 1 0 9 0.00 0.0 0 9.4 16 70 29 50 0 0 0 2 80 61 71 -2 0 6 0.00 0.0 0 8.3 16 30 24 50 0 0 0 3 83 59 71 -2 0 6 0.00 0.0 0 7.3 14 270 21 240 0 0 0 4 84 68 76 3 0 11 0.00 0.0 0 9.0 18 310 29 20 0 0 0 5 82 63 73 0 0 8 0.00 0.0 0 7.6 14 100 24 50 0 0 8 6 87 64 76 3 0 11 0.00 0.0 0 8.8 16 20 24 50 0 0 0 7 75 69 72 -1 0 7 0.20 0.0 0 6.7 16 340 23 10 0 0 18 8 72 59 66 -7 0 1 0.00 0.0 0 11.5 21 20 30 40 0 0 1 9 77 54 66 -7 0 1 0.03 0.0 0 6.5 20 200 24 190 0 0 3 10 88 67 78 5 0 13 T 0.0 0 10.6 18 320 24 250 0 0 0 11 84 65 75 2 0 10 0.00 0.0 0 6.5 14 340 23 40 0 0 1 12 77 63 70 -3 0 5 0.35 0.0 0 8.3 21 150 25 160 0 0 13 13 81 63 72 0 0 7 0.09 0.0 0 12.6 23 20 29 20 0 0 31 14 74 54 64 -8 1 0 0.00 0.0 0 10.4 21 30 28 40 0 0 0 15 80 52 66 -6 0 1 0.00 0.0 0 5.5 14 90 18 160 0 0 0 16 86 60 73 1 0 8 0.00 0.0 0 7.6 16 190 21 230 0 0 0 17 86 64 75 3 0 10 0.00 0.0 0 7.9 18 320 24 320 0 0 8 18 73 60 67 -5 0 2 0.05 0.0 0 4.7 13 180 20 300 0 0 13 19 74 62 68 -4 0 3 0.60 0.0 0 8.8 20 50 30 60 0 0 31 20 77 57 67 -4 0 2 0.00 0.0 0 6.8 14 70 23 70 0 0 0 21 76 54 65 -6 0 0 0.00 0.0 0 2.6 8 20 10 70 0 0 1 22 79 54 67 -4 0 2 T 0.0 0 3.1 11 170 16 150 0 0 0 23 77 66 72 1 0 7 0.58 0.0 0 7.8 25 110 28 110 0 0 183 24 74 67 71 0 0 6 0.22 0.0 0 10.0 17 70 25 60 0 0 18 25 73 66 70 0 0 5 0.18 0.0 0 9.1 15 10 23 40 0 0 1 26 79 64 72 2 0 7 0.00 0.0 0 6.6 13 10 28 50 0 0 18 27 86 62 74 4 0 9 0.00 0.0 0 4.4 13 260 15 280 0 0 18 28 90 70 80 10 0 15 0.00 0.0 0 5.5 14 40 24 40 0 0 18 29 74 63 69 0 0 4 0.00 0.0 0 12.0 24 40 32 50 0 0 1 30 69 55 62 -7 3 0 0.00 0.0 0 9.9 20 110 26 60 0 0 0 31 78 52 65 -4 0 0 0.00 0.0 0 6.6 13 60 17 30 0 0 0 ==================================================================================== Avg 79.3 61.3 70.3 ==================================================================================== PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6), Page 2 Station: O'HARE Month: August Year: 1999 ==================================================================================== {Temperature Data} {Precipitation Data} SYMBOLS USED IN COLUMN 16 Average Monthly: 70.3 Total for Month: 2.30 1 = BR Departure: -1.4 Departure: -1.92 2 = FG Highest: 90 on 28 Greatest daily: 0.60 on 19 3 = TS Lowest: 52 on 31 4 = PE {Snowfall, Ice Pellets, Hail} 5 = GR / GS 6 = FZRA / FZDZ Total for Month: 0.0 7 = DU / SS Greatest daily snowfall: 0.0 on 8 = FU / HZ Greatest snowdepth: 0.0 on 9 = BLSN X = FC { No. of Days with } {WEATHER - No. of Days with } { Sunshine Data } Max 32 or below: 0 0.01 inch or more Precip: 9 Total sunshine: 0 Max 90 or above: 1 0.10 inch or more Precip: 6 Sunshine %: 0 Min 32 or below: 0 0.50 inch or more Precip: 2 Min 0 or below: 0 1.00 inch or more Precip: 0 {Heating Degree Days (Base 65) } { Wind data (MPH) } Total this Month: 4 Peak wind: 32 Departure from Normal: -15 Direction: 50 Seasonal Total: 5 Fastest 2-min wind: 25 Departure from Normal: -19 Direction: 110 Average wind: 7.8 {Cooling Degree Days (Base 65) } { Days of weather } Wx Code 1-8 Hail = 0 Total this Month: 176 Mist =15 Freezing Rain= 0 Departure from Normal: -50 Fog = 0 Dust/Sand = 0 Seasonal Total: 851 Thunder= 6 Smoke/Haze = 8 Departure from Normal: 177 Pellets= 0 Blowing Snow = 0