Weather archive in Chicago / O'Hare (airport)
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| Date / Local time | T | Po | P | Pa | U | DD | Ff | ff10 | ff3 | N | WW | W1 | W2 | Tn | Tx | Cl | Nh | H | Cm | Ch | VV | Td | RRR | tR | E | Tg | E' | sss | |
| 2024 December 19, Thursday | 06 | -3.3 26 | 752.1 29.61 1002.72 1002.72 | 770.7 30.34 1027.52 1027.52 | -0.7 -0.03 -0.93 -0.93 | 66 | Wind blowing from the south-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | -3.9 25 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -8.9 16 | ||||||||||||||||
03 | -3.9 25 | 752.8 29.64 1003.65 1003.65 | 771.6 30.38 1028.72 1028.72 | 0.0 0 0 0 | 69 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 16.0 9.9 | -8.9 16 | ||||||||||||||||||
00 | -3.3 26 | 752.8 29.64 1003.65 1003.65 | 771.4 30.37 1028.45 1028.45 | -0.3 -0.01 -0.4 -0.4 | 66 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | -3.9 25 | 1.7 35 | 600-1000 1968-3281 | 16.0 9.9 | -8.9 16 | Trace of precipitation Trace of precipitation | 6 | ||||||||||||||
| December 18, Wednesday | 21 | -3.3 26 | 753.1 29.65 1004.05 1004.05 | 771.7 30.38 1028.85 1028.85 | 0.8 0.03 1.07 1.07 | 66 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 16.0 9.9 | -8.9 16 | |||||||||||||||||
18 | -1.7 29 | 752.3 29.62 1002.98 1002.98 | 770.9 30.35 1027.78 1027.78 | 1.7 0.07 2.27 2.27 | 61 | Wind blowing from the north-west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | -1.7 29 | 1.1 34 | 600-1000 1968-3281 | 16.0 9.9 | -8.3 17 | ||||||||||||||||
15 | -0.6 31 | 750.6 29.55 1000.72 1000.72 | 769.2 30.28 1025.52 1025.52 | 0.0 0 0 0 | 61 | Wind blowing from the north-west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 10 m/s 36 km/h 22 mph 19 knots 5 Bft | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 16.0 9.9 | -7.2 19 | |||||||||||||||||
12 | -0.6 31 | 750.6 29.55 1000.72 1000.72 | 769.0 30.28 1025.25 1025.25 | 0.3 0.01 0.4 0.4 | 76 | Wind blowing from the north-west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | -1.1 30 | 1.7 35 | 300-600 984-1968 | 16.0 9.9 | -4.4 24 | ||||||||||||||||
09 | 0.0 32 | 750.3 29.54 1000.32 1000.32 | 768.9 30.27 1025.12 1025.12 | 0.5 0.02 0.67 0.67 | 75 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 20–30%. 2/10–3/10. 2 oktas | 300-600 984-1968 | 16.0 9.9 | -3.9 25 | ||||||||||||||||||
06 | 0.0 32 | 749.8 29.52 999.65 999.65 | 768.3 30.25 1024.32 1024.32 | 0.0 0 0 0 | 85 | Wind blowing from the north-west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 0.0 32 | 3.9 39 | 200-300 656-984 | 16.0 9.9 | -2.2 28 | Trace of precipitation Trace of precipitation | 6 | ||||||||||||||