PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) Station: O'HARE Month: February 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 44 35 40 18 25 0 0.05 0.0 7.3 14 130 16 140 0 0 81 2 42 33 38 16 27 0 0.15 0.0 9.8 23 300 28 310 0 0 81 3 46 35 41 19 24 0 0.03 0.0 15.8 29 180 39 210 0 0 0 4 41 20 31 9 34 0 0.00 0.0 13.3 26 280 32 280 0 0 0 5 43 19 31 8 34 0 0.13 T 10.5 21 160 24 160 0 0 81 6 46 33 40 17 25 0 0.00 0.0 7.2 16 230 21 220 0 0 81 7 37 28 33 10 32 0 0.00 0.0 9.2 17 40 23 50 0 0 81 8 48 26 37 14 28 0 0.00 0.0 10.3 22 190 26 200 0 0 821 9 54 33 44 21 21 0 0.00 0.0 9.5 21 290 25 290 0 0 81 10 60 28 44 20 21 0 0.00 0.0 11.3 22 140 28 170 0 0 0 11 70 28 49 25 16 0 0.41 0.0 19.8 38 240 56 240 0 0 31 12 31 14 23 -1 42 0 T 0.2 18.8 29 270 38 240 0 0 821 13 32 14 23 -2 42 0 0.00 0.0 9.8 21 310 25 310 0 0 0 14 47 21 34 9 31 0 0.00 0.0 12.0 26 200 30 200 0 0 0 15 55 34 45 20 20 0 0.00 0.0 13.1 22 200 28 220 0 0 0 16 46 31 39 13 26 0 0.07 T 11.5 20 280 26 270 0 0 81 17 31 23 27 1 38 0 T T 9.2 20 270 26 280 0 0 0 18 37 20 29 3 36 0 0.00 0.0 6.1 15 50 25 70 0 0 81 19 32 24 28 1 37 0 T T 8.8 15 40 26 50 0 0 81 20 30 19 25 -2 40 0 0.01 0.2 12.5 20 20 30 20 0 0 1 21 34 22 28 1 37 0 T T 10.4 20 30 32 40 0 0 0 22 32 20 26 -2 39 0 0.00 0.0 9.1 18 140 23 90 0 0 0 23 34 24 29 1 36 0 0.00 0.0 11.1 18 130 23 90 0 0 0 24 35 18 27 -1 38 0 0.15 1.5 7.5 17 190 21 180 0 0 821 25 37 28 33 4 32 0 0.00 0.0 5.5 10 10 21 350 0 0 81 26 47 24 36 7 29 0 0.39 0.0 10.8 21 160 26 160 0 0 831 27 48 38 43 13 22 0 0.18 0.0 8.9 17 290 22 280 0 0 831 28 40 34 37 7 28 0 0.07 T 16.8 25 310 32 280 0 0 1 ==================================================================================== Avg 42.1 25.9 34.0 ==================================================================================== PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6), Page 2 Station: O'HARE Month: February Year: 1999 ==================================================================================== {Temperature Data} {Precipitation Data} SYMBOLS USED IN COLUMN 16 Average Monthly: 34.0 Total for Month: 1.64 1 = BR Departure: 8.7 Departure: 0.28 2 = FG Highest: 70 on 11 Greatest daily: 0.41 on 11 3 = TS Lowest: 14 on 13 4 = PE {Snowfall, Ice Pellets, Hail} 5 = GR / GS 6 = FZRA / FZDZ Total for Month: 1.9 7 = DU / SS Greatest daily snowfall: 1.5 on 24 8 = FU / HZ 9 = BLSN X = FC { No. of Days with } {WEATHER - No. of Days with } { Sunshine Data } Max 32 or below: 6 0.01 inch or more Precip: 11 Total sunshine: 0 Max 90 or above: 0 0.10 inch or more Precip: 6 Sunshine %: 0 Min 32 or below: 20 0.50 inch or more Precip: 0 Min 0 or below: 0 1.00 inch or more Precip: 0 {Heating Degree Days (Base 65) } { Wind data (MPH) } Total this Month: 860 Peak wind: 56 Departure from Normal: -249 Direction: 240 Seasonal Total: 4024 Fastest 2-min wind: 38 Departure from Normal: -888 Direction: 240 Average wind: 10.9 {Cooling Degree Days (Base 65) } { Days of weather } Wx Code 1-8 Hail = 0 Total this Month: 0 Mist =18 Freezing Rain= 0 Departure from Normal: 0 Fog = 3 Dust/Sand = 0 Seasonal Total: 0 Thunder= 3 Smoke/Haze =15 Departure from Normal: 0 Pellets= 0 Blowing Snow = 0