PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) Station: O'HARE Month: March Year: 1998 ================================================================================ 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 38 32 35 4 30 0 0.03 0.5 0 4.2 9 260 14 360 0 0 1 2 37 29 33 2 32 0 T T 0 7.3 14 300 17 300 0 0 21 3 37 30 34 2 31 0 0.07 0.7 0 7.3 11 010 21 030 0 0 1 4 39 29 34 2 31 0 0.01 0.3 0 8.2 14 330 22 030 0 0 1 5 39 32 36 3 29 0 T T 0 7.1 13 070 24 050 0 0 0 6 39 28 34 1 31 0 0.02 0.2 0 5.7 14 290 18 270 0 0 1 7 42 29 36 3 29 0 T 0.0 0 12.1 22 070 31 060 0 0 8 8 39 36 38 4 27 0 0.75 0.0 0 18.8 32 020 40 030 0 0 1 9 35 16 26 -8 39 0 1.60 6.5 0 22.4 41 020 47 020 0 0 9421 10 23 13 18 -17 47 0 0.00 0.0 0 11.5 21 340 28 010 0 0 0 11 22 13 18 -17 47 0 0.00 0.0 0 13.4 22 330 26 340 0 0 0 12 26 10 18 -18 47 0 0.00 0.0 0 9.5 15 210 20 220 0 0 0 13 38 19 29 -7 37 0 T 0.0 0 15.3 29 290 34 290 0 0 0 14 33 22 28 -8 37 0 T T 0 14.0 33 330 45 330 0 0 0 15 32 22 27 -10 38 0 T T 0 8.8 14 060 28 010 0 0 1 16 36 24 30 -7 35 0 0.00 0.0 0 10.4 18 110 23 070 0 0 0 17 39 33 36 -2 29 0 0.49 0.0 0 12.1 18 070 29 070 0 0 1 18 52 38 45 7 20 0 0.24 0.0 0 5.4 10 360 20 040 0 0 21 19 39 34 37 -2 28 0 0.01 0.0 0 12.5 25 010 34 010 0 0 1 20 36 33 35 -4 30 0 0.00 0.0 0 22.5 32 020 41 020 0 0 0 21 43 31 37 -2 28 0 0.00 0.0 0 15.2 25 020 31 040 0 0 0 22 46 26 36 -4 29 0 0.00 0.0 0 7.5 15 050 25 010 0 0 0 23 45 31 38 -2 27 0 0.00 0.0 0 7.6 18 030 30 060 0 0 0 24 52 28 40 -1 25 0 0.00 0.0 0 7.6 15 170 22 190 0 0 0 25 59 42 51 10 14 0 T 0.0 0 12.7 21 180 25 180 0 0 0 26 75 60 68 27 0 3 0.00 0.0 0 20.7 32 200 44 190 0 0 0 27 77 56 67 25 0 2 T 0.0 0 19.3 30 210 39 190 0 0 0 28 65 49 57 15 8 0 0.17 0.0 0 13.2 24 260 32 240 0 0 0 29 79 44 62 20 3 0 T 0.0 0 15.5 30 200 41 190 0 0 0 30 79 66 73 30 0 8 T 0.0 0 16.2 28 200 37 220 0 0 0 31 72 45 59 16 6 0 0.90 0.0 0 10.2 23 210 32 220 0 0 31 ==================================================================================== Avg 45.5 32.3 38.9 ==================================================================================== PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6), Page 2 Station: O'HARE Month: March Year: 1998 ==================================================================================== {Temperature Data} {Precipitation Data} SYMBOLS USED IN COLUMN 16 Average Monthly: 38.9 Total for Month: 4.29 1 = BR Departure: 1.7 Departure: 1.60 2 = FG Highest: 79 on 30 Greatest daily: 1.60 on 9 3 = TS Lowest: 10 on 12 4 = PE {Snowfall, Ice Pellets, Hail} 5 = GR / GS 6 = FZRA / FZDZ Total for Month: 8.2 7 = DU / SS Greatest daily snowfall: 6.5 on 9 8 = FU / HZ 9 = BLSN X = FC { No. of Days with } {WEATHER - No. of Days with } { Sunshine Data } Max 32 or below: 5 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: 19 0.50 inch or more Precip: 3 Min 0 or below: 0 1.00 inch or more Precip: 1 {Heating Degree Days (Base 65) } { Wind data (MPH) } Total this Month: 814 Peak wind: 47 Departure from Normal: -48 Direction: 020 Seasonal Total: 5015 Fastest 2-min wind: 41 Departure from Normal: -759 Direction: 020 Average wind: 12.1 {Cooling Degree Days (Base 65) } { Days of weather } Wx Code 1-8 Hail = 0 Total this Month: 13 Mist =12 Freezing Rain= 0 Departure from Normal: 13 Fog = 3 Dust/Sand = 0 Seasonal Total: 13 Thunder= 1 Smoke/Haze = 1 Departure from Normal: 13 Pellets= 1 Blowing Snow = 1