PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: ROCKFORD MONTH: AUGUST YEAR: 2004 LATITUDE: 42 10 N LONGITUDE: 89 5 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 86 59 73 0 0 8 0.00 0.0 0 7.7 22 220 M M 6 29 220 2 83 66 75 2 0 10 T 0.0 0 5.8 13 190 M M 4 18 15 200 3 89 66 78 5 0 13 2.70 0.0 0 5.4 29 240 M M 6 13 38 240 4 77 62 70 -3 0 5 0.29 0.0 0 10.2 22 30 M M 7 13 25 30 5 74 56 65 -8 0 0 0.00 0.0 0 11.3 21 10 M M 2 25 30 6 76 50 63 -10 2 0 0.00 0.0 0 3.7 12 310 M M 2 15 300 7 73 51 62 -10 3 0 T 0.0 0 3.7 12 280 M M 7 14 280 8 79 58 69 -3 0 4 0.00 0.0 0 7.6 16 200 M M 7 18 190 9 83 62 73 1 0 8 T 0.0 0 11.1 22 280 M M 6 26 290 10 65 56 61 -11 4 0 T 0.0 0 11.5 21 290 M M 9 1 25 290 11 61 51 56 -16 9 0 0.02 0.0 0 10.4 21 310 M M 10 1 26 310 12 66 49 58 -14 7 0 0.00 0.0 0 6.7 15 350 M M 8 17 360 13 72 47 60 -12 5 0 0.00 0.0 0 5.5 16 290 M M 5 20 300 14 73 49 61 -10 4 0 0.00 0.0 0 3.9 14 20 M M 4 16 360 15 75 46 61 -10 4 0 0.00 0.0 0 2.4 9 210 M M 2 1 12 220 16 77 51 64 -7 1 0 0.12 0.0 0 7.9 20 210 M M 6 1 23 220 17 77 60 69 -2 0 4 0.06 0.0 0 5.2 15 180 M M 8 1 17 190 18 77 57 67 -4 0 2 T 0.0 0 6.7 22 230 M M 9 128 28 220 19 68 53 61 -10 4 0 0.00 0.0 0 7.3 16 360 M M 7 21 350 20 75 52 64 -6 1 0 0.00 0.0 0 4.9 12 360 M M 8 14 350 21 71 50 61 -9 4 0 0.00 0.0 0 4.9 10 260 M M 1 13 320 22 82 49 66 -4 0 1 0.00 0.0 0 9.2 23 210 M M 5 28 210 23 83 62 73 3 0 8 T 0.0 0 8.0 17 80 M M 7 138 22 70 24 79 64 72 2 0 7 0.14 0.0 0 7.7 20 190 M M 9 138 24 190 25 75 64 70 1 0 5 0.07 0.0 0 8.1 20 160 M M 8 13 24 160 26 81 65 73 4 0 8 0.15 0.0 0 10.5 18 170 M M 9 138 23 170 27 83 66 75 6 0 10 2.43 0.0 0 7.7 35 280 M M 9 123 56 280 28 69 56 63 -6 2 0 0.91 0.0 0 10.1 24 10 M M 10 13 28 10 29 71 51 61 -7 4 0 0.00 0.0 0 8.0 18 20 M M 4 22 20 30 78 52 65 -3 0 0 0.00 0.0 0 4.0 14 230 M M 4 1 21 230 31 81 54 68 0 0 3 0.00 0.0 0 3.3 9 110 M M 4 1 13 320 ================================================================================ SM 2359 1734 54 96 6.89 0.0 220.4 M 193 ================================================================================ AV 76.1 55.9 7.1 FASTST PSBL % 6 MAX(MPH) MISC ----> 35 280 56 280 ================================================================================ NOTES: # LAST OF SEVERAL OCCURRENCES COLUMN 17 PEAK WIND IN M.P.H. PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2 STATION: ROCKFORD MONTH: AUGUST YEAR: 2004 LATITUDE: 42 10 N LONGITUDE: 89 5 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 66.0 TOTAL FOR MONTH: 6.89 1 = FOG DPTR FM NORMAL: -4.9 DPTR FM NORMAL: 2.68 2 = FOG REDUCING VISIBILITY HIGHEST: 89 ON 3 GRTST 24HR 2.99 ON 3- 4 TO 1/4 MILE OR LESS LOWEST: 46 ON 15 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 0.0 INCH 5 = HAIL GRTST 24HR 0.0 6 = GLAZE OR RIME GRTST DEPTH: 0 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: 0 0.01 INCH OR MORE: 10 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 7 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 3 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 2 [HDD (BASE 65) ] TOTAL THIS MO. 54 CLEAR (SCALE 0-3) 4 DPTR FM NORMAL 40 PTCLDY (SCALE 4-7) 16 SEASONAL TOTAL 61 CLOUDY (SCALE 8-10) 11 DPTR FM NORMAL 42 [CDD (BASE 65) ] TOTAL THIS MO. 96 DPTR FM NORMAL -109 [PRESSURE DATA] SEASONAL TOTAL 463 HIGHEST SLP 30.36 ON 15 DPTR FM NORMAL -224 LOWEST SLP 29.75 ON 18 [REMARKS]