WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
427
CXUS53 KLOT 140800
CF6ORD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: CHICAGO-OHARE
MONTH: MAY
YEAR: 2025
LATITUDE: 41 58 N
LONGITUDE: 87 54 W
TEMPERATURE IN F: :PCPN: SNOW: WIND :SUNSHINE: SKY :PK WND
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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
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1 68 51 60 5 5 0 0.20 0.0 0 9.8 26 230 M M 10 13 40 240
2 57 46 52 -4 13 0 T 0.0 0 7.5 14 60 M M 10 18 19 70
3 54 44 49 -7 16 0 0.00 0.0 0 15.2 23 30 M M 7 29 30
4 59 45 52 -4 13 0 0.13 0.0 0 15.2 26 30 M M 9 33 40
5 61 47 54 -3 11 0 T 0.0 0 9.0 21 40 M M 8 1 29 40
6 77 47 62 5 3 0 0.00 0.0 0 6.8 17 310 M M 4 1 26 270
7 75 48 62 4 3 0 0.00 0.0 0 13.0 29 20 M M 7 8 35 20
8 58 41 50 -8 15 0 0.00 0.0 0 17.1 25 40 M M 5 38 50
9 67 37 52 -6 13 0 0.00 0.0 0 5.9 12 60 M M 3 20 80
10 73 46 60 2 5 0 0.00 0.0 0 13.1 28 40 M M 2 34 30
11 71 42 57 -2 8 0 0.00 0.0 0 8.1 15 60 M M 1 23 50
12 80 48 64 5 1 0 T 0.0 0 6.2 14 100 M M 6 19 70
13 78 58 68 8 0 3 0.00 0.0 0 8.5 16 90 M M 7 22 40
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SM 878 600 106 3 0.33 0.0 135.4 M 79
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AV 67.5 46.2 10.4 FASTST M M 6 MAX(MPH)
MISC ----> 29 20 40 240
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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: MAY
YEAR: 2025
LATITUDE: 41 58 N
LONGITUDE: 87 54 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 56.8 TOTAL FOR MONTH: 0.33 1 = FOG OR MIST
DPTR FM NORMAL: -0.6 DPTR FM NORMAL: -1.60 2 = FOG REDUCING VISIBILITY
HIGHEST: 80 ON 12 GRTST 24HR 0.20 ON 30- 1 TO 1/4 MILE OR LESS
LOWEST: 37 ON 9 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: 2
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 2
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 0
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 106 CLEAR (SCALE 0-3) 2
DPTR FM NORMAL -4 PTCLDY (SCALE 4-7) 8
TOTAL FM JUL 1 5299 CLOUDY (SCALE 8-10) 3
DPTR FM NORMAL -556
[CDD (BASE 65) ]
TOTAL THIS MO. 3
DPTR FM NORMAL -11 [PRESSURE DATA]
TOTAL FM JAN 1 11 HIGHEST SLP M ON M
DPTR FM NORMAL -13 LOWEST SLP 29.59 ON 1
[REMARKS]