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 | |
| 2025 January 31, Friday | 00 | 4.4 40 | 738.1 29.06 984.05 984.05 | 756.1 29.77 1008.05 1008.05 | -1.0 -0.04 -1.33 -1.33 | 97 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | Rain, not freezing, continuous, slight at time of observation. | -2.7 27 | 6.1 43 | 100-200 328-656 | 3.2 2.0 | 3.9 39 | 13.0 0.51 | 6 | ||||||||||||
| January 30, Thursday | 21 | 4.4 40 | 739.1 29.1 985.39 985.39 | 757.4 29.82 1009.78 1009.78 | -0.5 -0.02 -0.67 -0.67 | 97 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | Rain, not freezing, continuous, slight at time of observation. | 100-200 328-656 | 3.2 2.0 | 3.9 39 | 6.0 0.24 | 3 | ||||||||||||||
18 | 6.1 43 | 739.6 29.12 986.05 986.05 | 757.9 29.84 1010.45 1010.45 | -0.5 -0.02 -0.67 -0.67 | 89 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | Rain, not freezing, continuous, slight at time of observation. | -2.7 27 | 10.0 50 | 200-300 656-984 | 6.0 3.7 | 4.4 40 | Trace of precipitation Trace of precipitation | 6 | |||||||||||||
15 | 8.9 48 | 740.1 29.14 986.72 986.72 | 758.3 29.85 1010.98 1010.98 | -1.5 -0.06 -2 -2 | 66 | Wind blowing from the south-west | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | 100%. 10/10. 8 oktas | 300-600 984-1968 | 16.0 9.9 | 2.8 37 | |||||||||||||||||
12 | 9.4 49 | 741.6 29.2 988.72 988.72 | 759.7 29.91 1012.85 1012.85 | -0.7 -0.03 -0.93 -0.93 | 38 | Wind blowing from the south-southwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 100%. 10/10. 8 oktas | -3.3 26 | 9.4 49 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -4.4 24 | |||||||||||||||
09 | 2.2 36 | 742.3 29.22 989.65 989.65 | 760.7 29.95 1014.18 1014.18 | -1.5 -0.06 -2 -2 | 67 | Wind blowing from the south-southeast | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -3.3 26 | ||||||||||||||||||
06 | -2.2 28 | 743.8 29.28 991.65 991.65 | 762.1 30 1016.05 1016.05 | -0.3 -0.01 -0.4 -0.4 | 75 | Wind blowing from the south-southeast | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | -2.8 27 | 8.3 47 | 16.0 9.9 | -6.1 21 | |||||||||||||||||
03 | -1.1 30 | 744.1 29.3 992.05 992.05 | 762.4 30.02 1016.45 1016.45 | -0.7 -0.03 -0.93 -0.93 | 69 | Wind blowing from the south-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | -6.1 21 | |||||||||||||||||||
00 | 0.6 33 | 744.8 29.32 992.99 992.99 | 763.1 30.04 1017.38 1017.38 | 0.7 0.03 0.93 0.93 | 64 | Wind blowing from the west-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 0.6 33 | 6.1 43 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -5.6 22 | ||||||||||||||||