WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
108
CXUS53 KLOT 220800
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
14 80 56 68 8 0 3 0.00 0.0 0 6.4 15 90 M M 6 1 20 70
15 94 57 76 16 0 11 T T 0 11.3 31 190 M M 4 1358 50 200
16 88 60 74 13 0 9 T 0.0 0 15.9 30 190 M M 3 37 50 180
17 71 54 63 2 2 0 0.00 0.0 0 15.6 25 260 M M 8 38 260
18 64 45 55 -6 10 0 0.00 0.0 0 9.1 16 40 M M 4 20 60
19 55 43 49 -13 16 0 0.00 0.0 0 15.1 22 40 M M 9 29 50
20 56 48 52 -10 13 0 0.62 0.0 0 14.5 28 90 M M 10 13 40 100
21 52 48 50 -12 15 0 0.06 0.0 0 9.9 15 350 M M 10 1 22 300
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SM 1438 1011 162 26 1.01 T 233.2 M 133
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AV 68.5 48.1 11.1 FASTST M M 6 MAX(MPH)
MISC ----> 31 190 50 200
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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: 58.3 TOTAL FOR MONTH: 1.01 1 = FOG OR MIST
DPTR FM NORMAL: -0.5 DPTR FM NORMAL: -2.10 2 = FOG REDUCING VISIBILITY
HIGHEST: 94 ON 15 GRTST 24HR 0.62 ON 20-20 TO 1/4 MILE OR LESS
LOWEST: 37 ON 9 3 = THUNDER
SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS
TOTAL MONTH: T 5 = HAIL
GRTST 24HR T ON 15-15 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: 4
MAX 90 OR ABOVE: 1 0.10 INCH OR MORE: 3
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. 162 CLEAR (SCALE 0-3) 3
DPTR FM NORMAL 5 PTCLDY (SCALE 4-7) 12
TOTAL FM JUL 1 5355 CLOUDY (SCALE 8-10) 6
DPTR FM NORMAL -547
[CDD (BASE 65) ]
TOTAL THIS MO. 26
DPTR FM NORMAL -4 [PRESSURE DATA]
TOTAL FM JAN 1 34 HIGHEST SLP M ON M
DPTR FM NORMAL -6 LOWEST SLP 29.33 ON 15
[REMARKS]