PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: ROCKFORD MONTH: DECEMBER YEAR: 2003 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 42 23 33 3 32 0 0.00 0.0 0 15.0 30 290 M M 2 37 320 2 34 17 26 -4 39 0 0.00 0.0 0 4.4 13 90 M M 7 15 100 3 41 29 35 6 30 0 0.00 0.0 0 9.0 15 100 M M 10 20 80 4 37 32 35 6 30 0 0.15 T T 6.7 13 70 M M 10 1 16 70 5 46 27 37 9 28 0 0.21 0.3 0 12.7 26 10 M M 6 1 32 20 6 35 25 30 2 35 0 0.00 0.0 0 4.9 9 340 M M 7 18 10 330 7 42 30 36 9 29 0 0.00 0.0 0 11.1 21 170 M M 10 18 23 160 8 45 35 40 13 25 0 0.00 0.0 0 8.9 16 160 M M 9 18 20 160 9 43 40 42 15 23 0 1.04 0.0 0 9.1 20 50 M M 10 13 24 50 10 43 24 34 8 31 0 1.60 0.2 1 17.1 25 350 M M 10 1 37 340 11 24 9 17 -9 48 0 0.00 0.0 1 12.2 21 310 M M 4 24 320 12 20 4 12 -13 53 0 0.00 0.0 M 5.5 13 310 M M 1 15 310 13 28 9 19 -6 46 0 0.03 0.8 M 6.5 15 150 M M 9 1 17 150 14 29 22 26 1 39 0 T T 1 5.3 16 190 M M 10 18 18 190 15 37 24 31 7 34 0 0.00 0.0 M 17.0 24 160 M M 10 1 29 150 16 41 22 32 8 33 0 T T 0 17.3 25 270 M M 10 1 32 270 17 23 19 21 -3 44 0 T T 0 8.8 22 290 M M 9 18 25 290 18 29 21 25 2 40 0 T T 0 10.1 21 300 M M 10 18 25 310 19 31 14 23 0 42 0 T T 0 13.2 23 330 M M 6 28 320 20 31 11 21 -2 44 0 0.00 0.0 0 9.1 18 180 M M 4 22 200 21 49 25 37 14 28 0 0.00 0.0 0 14.5 26 210 M M 5 31 210 22 43 33 38 16 27 0 T 0.0 0 5.5 17 300 M M 10 22 300 23 34 23 29 7 36 0 T T 0 10.8 17 340 M M 10 22 330 24 27 14 21 -1 44 0 0.00 0.0 0 7.6 16 310 M M 3 20 340 25 39 12 26 5 39 0 0.00 0.0 0 4.6 15 290 M M 1 16 290 26 45 16 31 10 34 0 0.00 0.0 0 8.1 17 150 M M 4 21 150 27 51 32 42 21 23 0 0.01 0.0 0 16.3 26 180 M M 8 1 33 160 28 53 34 44 23 21 0 0.16 0.0 0 13.3 23 170 M M 8 1 29 170 29 39 27 33 13 32 0 T T 0 10.2 21 270 M M 7 26 270 30 39 22 31 11 34 0 T T 0 13.1 22 190 M M 6 29 190 31 42 21 32 12 33 0 0.00 0.0 0 9.7 24 300 M M 5 30 220 ================================================================================ SM 1162 696 1076 0 3.20 1.3 317.6 M 221 ================================================================================ AV 37.5 22.5 10.2 FASTST PSBL % 7 MAX(MPH) MISC ----> 30 290 # 37 340 ================================================================================ 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: DECEMBER YEAR: 2003 LATITUDE: 42 10 N LONGITUDE: 89 5 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 30.0 TOTAL FOR MONTH: 3.20 1 = FOG DPTR FM NORMAL: 5.6 DPTR FM NORMAL: 1.14 2 = FOG REDUCING VISIBILITY HIGHEST: 53 ON 28 GRTST 24HR 2.50 ON 9-10 TO 1/4 MILE OR LESS LOWEST: 4 ON 12 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 1.3 INCHES 5 = HAIL GRTST 24HR 0.8 ON 13 6 = GLAZE OR RIME 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: 9 0.01 INCH OR MORE: 7 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 5 MIN 32 OR BELOW: 27 0.50 INCH OR MORE: 2 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 2 [HDD (BASE 65) ] TOTAL THIS MO. 1076 CLEAR (SCALE 0-3) 4 DPTR FM NORMAL -168 PTCLDY (SCALE 4-7) 11 SEASONAL TOTAL 2397 CLOUDY (SCALE 8-10) 16 DPTR FM NORMAL -278 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL 0 [PRESSURE DATA] SEASONAL TOTAL 732 HIGHEST SLP 30.62 ON 2 DPTR FM NORMAL -36 LOWEST SLP 29.41 ON 10 [REMARKS]