WFO Monthly/Daily Climate Data Issued by NWS
323
CXUS53 KLOT 010800
CF6ORD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: CHICAGO-OHARE
MONTH: DECEMBER
YEAR: 2020
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 35 25 30 -3 35 0 0.00 0.0 0 8.2 16 320 M M 5 25 310
2 48 25 37 5 28 0 0.00 0.0 0 6.6 15 230 M M 4 21 240
3 44 30 37 5 28 0 0.00 0.0 0 11.0 20 250 M M 4 29 260
4 46 30 38 7 27 0 0.00 0.0 0 10.3 20 240 M M 3 28 240
5 41 29 35 4 30 0 0.00 0.0 0 4.8 9 60 M M 6 13 40
6 37 34 36 5 29 0 T T 0 4.6 13 350 M M 10 18 15 340
7 38 33 36 6 29 0 0.00 0.0 0 4.1 9 360 M M 10 13 350
8 36 33 35 5 30 0 0.00 0.0 0 10.1 21 240 M M 10 18 29 230
9 53 32 43 14 22 0 0.00 0.0 0 5.6 13 230 M M 3 18 21 250
10 57 31 44 15 21 0 0.00 0.0 0 4.4 15 210 M M 4 8 19 210
11 44 36 40 11 25 0 0.82 0.0 0 14.8 28 30 M M 9 18 33 30
12 42 30 36 8 29 0 0.85 T 0 15.3 26 20 M M 10 1 34 50
13 36 27 32 4 33 0 0.00 0.0 0 6.7 21 290 M M 6 29 260
14 32 21 27 -1 38 0 T T 0 9.7 17 300 M M 8 26 310
15 34 18 26 -2 39 0 0.00 0.0 0 8.9 16 90 M M 9 22 70
16 34 29 32 5 33 0 T T 0 9.3 15 90 M M 10 19 100
17 35 27 31 4 34 0 T T 0 5.2 12 330 M M 9 16 350
18 37 24 31 4 34 0 0.00 0.0 0 10.1 21 180 M M 5 8 29 180
19 43 36 40 14 25 0 0.00 0.0 0 9.6 18 190 M M 10 18 27 190
20 41 32 37 11 28 0 0.00 0.0 0 9.2 20 240 M M 7 18 27 230
21 46 33 40 14 25 0 T 0.0 0 12.9 25 280 M M 9 39 270
22 42 32 37 11 28 0 0.00 0.0 0 10.3 22 190 M M 6 33 190
23 58 26 42 16 23 0 0.17 T 0 20.7 31 250 M M 9 1 48 200
24 26 9 18 -8 47 0 T 0.2 T 14.7 32 250 M M 9 8 48 250
25 22 8 15 -10 50 0 0.00 0.0 0 12.6 22 240 M M 5 32 230
26 33 19 26 1 39 0 0.00 0.0 0 5.8 15 240 M M 5 22 240
27 47 25 36 11 29 0 T T 0 8.8 22 310 M M 9 33 270
28 34 21 28 3 37 0 0.00 0.0 0 10.6 18 310 M M 5 8 27 300
29 32 18 25 0 40 0 0.52 2.6 0 8.2 20 150 M M 8 126 28 120
30 35 26 31 6 34 0 0.19 0.0 1 14.0 24 270 M M 10 16 34 260
31 29 18 24 0 41 0 0.00 0.0 1 4.0 13 310 M M 8 18 17 300
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SM 1217 817 990 0 2.55 2.8 291.1 M 225
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AV 39.3 26.4 9.4 FASTST M M 7 MAX(MPH)
MISC ----> 32 250 # 48 200
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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: DECEMBER
YEAR: 2020
LATITUDE: 41 58 N
LONGITUDE: 87 54 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 32.8 TOTAL FOR MONTH: 2.55 1 = FOG OR MIST
DPTR FM NORMAL: 5.1 DPTR FM NORMAL: 0.30 2 = FOG REDUCING VISIBILITY
HIGHEST: 58 ON 23 GRTST 24HR 1.67 ON 11-12 TO 1/4 MILE OR LESS
LOWEST: 8 ON 25 3 = THUNDER
SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS
TOTAL MONTH: 2.8 INCHES 5 = HAIL
GRTST 24HR 2.6 ON 29-29 6 = FREEZING RAIN OR DRIZZLE
GRTST DEPTH: 1 ON 31,30 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: 5 0.01 INCH OR MORE: 5
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 5
MIN 32 OR BELOW: 25 0.50 INCH OR MORE: 3
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 990 CLEAR (SCALE 0-3) 2
DPTR FM NORMAL -165 PTCLDY (SCALE 4-7) 14
TOTAL FM JUL 1 1989 CLOUDY (SCALE 8-10) 15
DPTR FM NORMAL -420
[CDD (BASE 65) ]
TOTAL THIS MO. 0
DPTR FM NORMAL 0 [PRESSURE DATA]
TOTAL FM JAN 1 1295 HIGHEST SLP M ON M
DPTR FM NORMAL 452 LOWEST SLP 29.41 ON 23
[REMARKS]
#FINAL-12-20#