PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: CHICAGO-OHARE MONTH: MARCH YEAR: 2002 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 32 20 26 -6 39 0 0.20 2.0 0 8.6 16 90 M M 9 1 23 70 2 34 21 28 -4 37 0 1.02 7.1 6 10.1 20 330 M M 10 1 22 330 3 21 0 11 -22 54 0 0.01 0.8 M 15.5 24 330 M M 7 1 28 330 4 19 -7 6 -27 59 0 T 0.3 M 10.7 18 220 M M 6 1 23 200 5 33 12 23 -10 42 0 T T 0 6.4 12 150 M M 8 1 15 70 6 43 26 35 1 30 0 0.00 0.0 5 7.1 16 40 M M 6 128 24 40 7 38 33 36 2 29 0 0.00 0.0 2 10.0 15 50 M M 10 18 28 50 8 64 37 51 17 14 0 0.23 0.0 0 16.4 28 190 M M 9 138 39 200 9 62 21 42 7 23 0 0.52 T 0 25.4 39 280 M M 9 13 52 270 10 28 14 21 -14 44 0 0.00 0.0 0 14.8 35 280 M M 2 47 270 11 44 22 33 -3 32 0 0.00 0.0 0 11.5 23 190 M M 9 31 200 12 53 27 40 4 25 0 0.00 0.0 0 5.8 16 190 M M 4 18 18 200 13 59 36 48 12 17 0 0.00 0.0 0 8.5 20 220 M M 5 18 24 270 14 63 37 50 13 15 0 0.00 0.0 0 13.4 23 90 M M 7 18 31 170 15 59 35 47 10 18 0 0.01 M 0 15.0 28 270 M M 7 8 36 270 16 41 32 37 0 28 0 0.00 M 0 13.8 22 20 M M 5 29 50 17 41 34 38 0 27 0 T 0.0 0 10.6 18 110 M M 9 1 24 50 18 47 36 42 4 23 0 T 0.0 0 8.1 15 70 M M 9 1 26 70 19 48 35 42 4 23 0 0.01 0.0 0 6.9 15 120 M M 8 18 21 80 20 46 33 40 1 25 0 0.03 0.0 0 9.5 17 20 M M 6 1 24 80 21 39 17 28 -11 37 0 0.02 0.1 0 18.5 28 340 M M 7 18 35 320 22 37 14 26 -13 39 0 0.00 0.0 0 15.9 26 280 M M 1 32 260 23 51 27 39 -1 26 0 0.00 0.0 0 13.1 25 270 M M 1 31 280 24 41 26 34 -6 31 0 T T 0 15.9 30 40 M M 10 39 40 25 31 24 28 -13 37 0 0.03 0.4 T 16.9 28 50 M M 10 1 35 40 26 38 25 32 -9 33 0 0.03 0.5 0 10.9 21 10 M M 6 1 25 20 27 48 23 36 -5 29 0 0.00 0.0 0 6.0 15 190 M M 3 20 180 28 50 29 40 -2 25 0 T 0.0 0 10.8 22 200 M M 8 18 28 170 29 45 37 41 -1 24 0 0.61 0.0 0 5.6 15 330 M M 6 18 25 40 30 50 35 43 1 22 0 0.00 0.0 0 11.1 24 260 M M 4 30 280 31 47 28 38 -5 27 0 0.01 0.0 0 9.2 23 280 M M 6 26 240 ================================================================================ SM 1352 789 934 0 2.73 11.2 362.0 M 207 ================================================================================ AV 43.6 25.5 11.7 FASTST PSBL % 7 MAX(MPH) MISC ----> 39 280 52 270 ================================================================================ 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: 2002 LATITUDE: 41 58 N LONGITUDE: 87 54 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 34.5 TOTAL FOR MONTH: 2.73 1 = FOG DPTR FM NORMAL: -2.8 DPTR FM NORMAL: 0.08 2 = FOG REDUCING VISIBILITY HIGHEST: 64 ON 8 GRTST 24HR 1.02 ON 2 TO 1/4 MILE OR LESS LOWEST: -7 ON 4 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 11.2 INCHES 5 = HAIL GRTST 24HR 7.1 ON 2 6 = GLAZE OR RIME GRTST DEPTH: 6 ON 2 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: 5 0.01 INCH OR MORE: 13 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 5 MIN 32 OR BELOW: 20 0.50 INCH OR MORE: 3 MIN 0 OR BELOW: 2 1.00 INCH OR MORE: 1 [HDD (BASE 65) ] TOTAL THIS MO. 934 CLEAR (SCALE 0-3) 3 DPTR FM NORMAL 72 PTCLDY (SCALE 4-7) 15 SEASONAL TOTAL 4860 CLOUDY (SCALE 8-10) 13 DPTR FM NORMAL -914 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL -1 SEASONAL TOTAL 0 DPTR FM NORMAL -1 [REMARKS]