WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
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CXUS53 KLOT 280800
CF6ORD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: CHICAGO-OHARE
MONTH: SEPTEMBER
YEAR: 2026
LATITUDE: 41 58 N
LONGITUDE: 87 54 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 95 77 86 15 0 21 0.00 0.0 0 8.0 15 240 M M 6 20 210
2 96 78 87 16 0 22 0.00 0.0 0 9.1 18 250 M M 5 26 260
3 91 77 84 13 0 19 0.00 0.0 0 7.1 22 350 M M 4 38 30 340
4 93 76 85 15 0 20 T 0.0 0 7.4 22 40 M M 5 3 29 30
5 81 72 77 7 0 12 0.00 0.0 0 11.7 23 30 M M 7 1 29 40
6 79 68 74 4 0 9 0.00 0.0 0 9.6 17 30 M M 6 23 80
7 81 64 73 3 0 8 0.00 0.0 0 6.0 15 100 M M 4 22 70
8 85 65 75 6 0 10 0.00 0.0 0 6.5 18 190 M M 7 1 27 190
9 80 71 76 7 0 11 0.06 0.0 0 7.7 17 270 M M 9 1 25 240
10 77 64 71 2 0 6 0.00 0.0 0 5.7 12 110 M M 6 20 10
11 82 60 71 3 0 6 0.00 0.0 0 6.7 15 140 M M 2 21 150
12 88 66 77 9 0 12 0.00 0.0 0 8.1 17 210 M M 5 22 230
13 75 55 65 -3 0 0 0.02 0.0 0 6.7 16 340 M M 4 23 320
14 71 53 62 -5 3 0 0.00 0.0 0 7.8 18 170 M M 6 26 170
15 84 67 76 9 0 11 0.07 0.0 0 8.2 20 180 M M 8 18 32 180
16 76 64 70 4 0 5 0.03 0.0 0 9.2 18 30 M M 10 1 22 30
17 80 66 73 7 0 8 0.71 0.0 0 6.7 17 20 M M 10 13 26 10
18 72 65 69 3 0 4 T 0.0 0 10.8 18 100 M M 8 23 60
19 70 63 67 2 0 2 0.86 0.0 0 5.6 18 130 M M 10 13 24 140
20 69 61 65 0 0 0 1.21 0.0 0 13.8 24 30 M M 10 13 32 30
21 66 59 63 -1 2 0 T 0.0 0 15.1 22 40 M M 10 1 32 60
22 63 57 60 -4 5 0 0.00 0.0 0 12.9 20 30 M M 8 26 30
23 68 60 64 0 1 0 0.00 0.0 0 11.5 20 60 M M 9 25 80
24 70 60 65 2 0 0 0.00 0.0 0 8.5 15 90 M M 8 20 90
25 64 56 60 -3 5 0 0.00 0.0 0 6.0 9 80 M M 8 13 100
26 69 51 60 -2 5 0 0.00 0.0 0 4.4 12 60 M M 4 17 90
27 72 49 61 -1 4 0 0.00 0.0 0 5.0 12 50 M M 5 128 15 70
================================================================================
SM 2097 1724 25 186 2.96 0.0 225.8 M 184
================================================================================
AV 77.7 63.9 8.4 FASTST M M 7 MAX(MPH)
MISC ----> 24 30 # 32 180
================================================================================
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: SEPTEMBER
YEAR: 2026
LATITUDE: 41 58 N
LONGITUDE: 87 54 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 70.8 TOTAL FOR MONTH: 2.96 1 = FOG OR MIST
DPTR FM NORMAL: 3.8 DPTR FM NORMAL: 0.06 2 = FOG REDUCING VISIBILITY
HIGHEST: 96 ON 2 GRTST 24HR 1.21 ON 20-20 TO 1/4 MILE OR LESS
LOWEST: 49 ON 27 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: 7
MAX 90 OR ABOVE: 4 0.10 INCH OR MORE: 3
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 3
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1
[HDD (BASE 65) ]
TOTAL THIS MO. 25 CLEAR (SCALE 0-3) 1
DPTR FM NORMAL -34 PTCLDY (SCALE 4-7) 16
TOTAL FM JUL 1 25 CLOUDY (SCALE 8-10) 10
DPTR FM NORMAL -40
[CDD (BASE 65) ]
TOTAL THIS MO. 186
DPTR FM NORMAL 74 [PRESSURE DATA]
TOTAL FM JAN 1 1112 HIGHEST SLP M ON M
DPTR FM NORMAL 128 LOWEST SLP 29.82 ON 12
[REMARKS]