


WFO Monthly/Daily Climate Data
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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841 CXUS53 KLOT 090800 CF6RFD PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: ROCKFORD IL MONTH: MAY YEAR: 2025 LATITUDE: 42 12 N LONGITUDE: 89 6 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 12Z AVG MX 2MIN DY MAX MIN AVG DEP HDD CDD WTR SNW DPTH SPD SPD DIR MIN PSBL S-S WX SPD DR ================================================================================ 1 58 50 54 -1 11 0 0.56 0.0 0 6.6 14 260 M M 10 1 20 270 2 62 47 55 0 10 0 0.25 0.0 0 3.0 10 100 M M 10 18 16 100 3 61 40 51 -5 14 0 0.04 0.0 0 7.1 17 360 M M 7 1 27 350 4 68 40 54 -2 11 0 T 0.0 0 7.1 17 10 M M 8 24 20 5 64 44 54 -2 11 0 T 0.0 0 5.6 12 60 M M 8 1 18 70 6 78 40 59 2 6 0 0.00 0.0 0 6.1 16 280 M M 3 1 34 240 7 79 49 64 7 1 0 0.00 0.0 0 7.3 18 50 M M 8 8 29 40 8 65 44 55 -3 10 0 0.00 0.0 0 9.7 17 60 M M 3 30 40 ================================================================================ SM 535 354 74 0 0.85 0.0 52.5 M 57 ================================================================================ AV 66.9 44.3 6.6 FASTST M M 7 MAX(MPH) MISC ----> 18 50 34 240 ================================================================================ 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 IL MONTH: MAY YEAR: 2025 LATITUDE: 42 12 N LONGITUDE: 89 6 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 55.6 TOTAL FOR MONTH: 0.85 1 = FOG OR MIST DPTR FM NORMAL: -0.7 DPTR FM NORMAL: -0.12 2 = FOG REDUCING VISIBILITY HIGHEST: 79 ON 7 GRTST 24HR 0.56 ON 30- 1 TO 1/4 MILE OR LESS LOWEST: 40 ON 6, 4 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 0.0 INCH 5 = HAIL GRTST 24HR 0.0 6 = FREEZING RAIN OR DRIZZLE GRTST DEPTH: 0 7 = DUSTSTORM OR SANDSTORM: 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: 3 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 2 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 1 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 74 CLEAR (SCALE 0-3) 2 DPTR FM NORMAL -1 PTCLDY (SCALE 4-7) 3 TOTAL FM JUL 1 5793 CLOUDY (SCALE 8-10) 3 DPTR FM NORMAL -552 [CDD (BASE 65) ] TOTAL THIS MO. 0 DPTR FM NORMAL -5 [PRESSURE DATA] TOTAL FM JAN 1 4 HIGHEST SLP M ON M DPTR FM NORMAL -8 LOWEST SLP 29.63 ON 1 [REMARKS]