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 | |
| 2026 January 5, Monday | 15 | 6.7 44 | 739.3 29.11 985.65 985.65 | 757.5 29.82 1009.92 1009.92 | 0.0 0 0 0 | 63 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 0.0 32 | |||||||||||||||||
12 | 5.6 42 | 739.3 29.11 985.65 985.65 | 757.6 29.83 1010.05 1010.05 | 0.0 0 0 0 | 65 | Wind blowing from the south-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | -1.0 30 | 5.6 42 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -0.6 31 | ||||||||||||||||
09 | 1.1 34 | 739.3 29.11 985.65 985.65 | 757.6 29.83 1010.05 1010.05 | 0.7 0.03 0.93 0.93 | 73 | Wind blowing from the west-southwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -3.3 26 | ||||||||||||||||||
06 | 0.6 33 | 738.6 29.08 984.72 984.72 | 757.0 29.8 1009.25 1009.25 | -1.0 -0.04 -1.33 -1.33 | 70 | Wind blowing from the south-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 20–30%. 2/10–3/10. 2 oktas | -1.0 30 | 1.1 34 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -4.4 24 | ||||||||||||||||
03 | 0.6 33 | 739.6 29.12 986.05 986.05 | 757.9 29.84 1010.45 1010.45 | -0.7 -0.03 -0.93 -0.93 | 66 | Wind blowing from the south-southwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -5.0 23 | ||||||||||||||||||
00 | 1.1 34 | 740.3 29.15 986.99 986.99 | 758.7 29.87 1011.52 1011.52 | -2.6 -0.1 -3.47 -3.47 | 67 | Wind blowing from the south | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 13 m/s 47 km/h 29 miles/hour 25 knots 6 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | -4.4 24 | 1.1 34 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -4.4 24 | |||||||||||||||
| January 4, Sunday | 21 | 0.0 32 | 742.9 29.25 990.45 990.45 | 761.4 29.98 1015.12 1015.12 | -2.2 -0.09 -2.93 -2.93 | 64 | Wind blowing from the south | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -6.1 21 | ||||||||||||||||
18 | -0.6 31 | 745.1 29.33 993.39 993.39 | 763.6 30.06 1018.05 1018.05 | -0.5 -0.02 -0.67 -0.67 | 56 | Wind blowing from the south | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | -4.4 24 | 0.0 32 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -8.3 17 | ||||||||||||||||
15 | -0.6 31 | 745.6 29.35 994.05 994.05 | 764.2 30.09 1018.85 1018.85 | -2.4 -0.09 -3.2 -3.2 | 47 | Wind blowing from the south | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -10.6 13 | ||||||||||||||||||