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 May 22, Friday | 13 | 17.8 64 | 745.8 29.36 994.32 994.32 | 763.7 30.07 1018.18 1018.18 | -1.8 -0.07 -2.4 -2.4 | 48 | Wind blowing from the east-northeast | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 11.1 52 | 18.3 65 | 1500-2000 4921-6562 | 16.0 9.9 | 6.7 44 | |||||||||||||||
10 | 12.8 55 | 747.6 29.43 996.72 996.72 | 765.5 30.14 1020.58 1020.58 | -0.4 -0.02 -0.53 -0.53 | 59 | Wind blowing from the east | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 5.0 41 | ||||||||||||||||||
07 | 11.1 52 | 748.0 29.45 997.25 997.25 | 766.0 30.16 1021.25 1021.25 | 0.0 0 0 0 | 64 | Wind blowing from the east-northeast | 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 | 10.0 50 | 1500-2000 4921-6562 | 16.0 9.9 | 4.4 40 | ||||||||||||||||
04 | 11.7 53 | 748.0 29.45 997.25 997.25 | 766.2 30.17 1021.52 1021.52 | -0.3 -0.01 -0.4 -0.4 | 72 | Wind blowing from the east-northeast | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 6.7 44 | ||||||||||||||||||
01 | 11.1 52 | 748.3 29.46 997.65 997.65 | 766.4 30.17 1021.78 1021.78 | -1.0 -0.04 -1.33 -1.33 | 72 | Wind blowing from the east-northeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | 8.3 47 | 11.7 53 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 6.1 43 | ||||||||||||||||
| May 21, Thursday | 22 | 10.6 51 | 749.3 29.5 998.98 998.98 | 767.5 30.22 1023.25 1023.25 | -0.2 -0.01 -0.27 -0.27 | 64 | Wind blowing from the north-northeast | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 3.9 39 | |||||||||||||||||
19 | 11.7 53 | 749.5 29.51 999.25 999.25 | 767.6 30.22 1023.38 1023.38 | -0.6 -0.02 -0.8 -0.8 | 55 | Wind blowing from the north-east | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 8.3 47 | 14.4 58 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 2.8 37 | ||||||||||||||||
16 | 14.4 58 | 750.1 29.53 1000.05 1000.05 | 768.1 30.24 1024.05 1024.05 | -1.2 -0.05 -1.6 -1.6 | 58 | Wind blowing from the north-east | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 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 | 6.1 43 | ||||||||||||||||||
13 | 12.8 55 | 751.3 29.58 1001.65 1001.65 | 769.6 30.3 1026.05 1026.05 | -0.3 -0.01 -0.4 -0.4 | 64 | Wind blowing from the north-east | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | 9.4 49 | 13.3 56 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 6.1 43 | ||||||||||||||||