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 25, Sunday | 00 | -15.0 5 | 753.1 29.65 1004.05 1004.05 | 772.5 30.41 1029.92 1029.92 | -1.9 -0.07 -2.53 -2.53 | 76 | Wind blowing from the north | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | Continuous fall of snowflakes, slight at time of observation. | -14.4 6 | 300-600 984-1968 | 3.2 2.0 | -18.3 -1 | 1.0 0.04 | 6 | |||||||||||||
| January 24, Saturday | 21 | -15.0 5 | 755.0 29.72 1006.58 1006.58 | 774.7 30.5 1032.85 1032.85 | -2.0 -0.08 -2.67 -2.67 | 76 | Wind blowing from the north-northeast | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | Continuous fall of snowflakes, slight at time of observation. | 1000-1500 3281-4921 | 4.8 3.0 | -18.3 -1 | 0.5 0.02 | 3 | ||||||||||||||
18 | -15.0 5 | 757.0 29.8 1009.25 1009.25 | 776.5 30.57 1035.25 1035.25 | -0.8 -0.03 -1.07 -1.07 | 69 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | Continuous fall of snowflakes, slight at time of observation. | -23.3 -10 | -14.4 6 | 1000-1500 3281-4921 | 4.8 3.0 | -19.4 -3 | Trace of precipitation Trace of precipitation | 6 | |||||||||||||
15 | -14.4 6 | 757.8 29.83 1010.32 1010.32 | 777.4 30.61 1036.45 1036.45 | -2.0 -0.08 -2.67 -2.67 | 38 | Wind blowing from the east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | Continuous fall of snowflakes, slight at time of observation. | 1000-1500 3281-4921 | 14.0 8.7 | -25.6 -14 | Trace of precipitation Trace of precipitation | 3 | |||||||||||||||
12 | -16.7 2 | 759.8 29.91 1012.98 1012.98 | 779.6 30.69 1039.38 1039.38 | -1.4 -0.06 -1.87 -1.87 | 38 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | -23.3 -10 | -16.7 2 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -27.8 -18 | ||||||||||||||||
09 | -21.7 -7 | 761.2 29.97 1014.85 1014.85 | 781.2 30.76 1041.51 1041.51 | -0.8 -0.03 -1.07 -1.07 | 52 | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -28.9 -20 | |||||||||||||||||||
06 | -23.3 -10 | 762.0 30 1015.92 1015.92 | 781.9 30.78 1042.45 1042.45 | -0.5 -0.02 -0.67 -0.67 | 49 | Wind blowing from the north-west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | -23.3 -10 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -31.1 -24 | |||||||||||||||||
03 | -22.2 -8 | 762.5 30.02 1016.58 1016.58 | 782.4 30.8 1043.11 1043.11 | 0.0 0 0 0 | 46 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 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 | -30.6 -23 | ||||||||||||||||||
00 | -22.2 -8 | 762.5 30.02 1016.58 1016.58 | 782.4 30.8 1043.11 1043.11 | 0.0 0 0 0 | 42 | Wind blowing from the north-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 50%. 5/10. 4 oktas | -22.8 -9 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | -31.7 -25 | |||||||||||||||||