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 September 7, Sunday | 04 | 10.0 50 | 747.1 29.41 996.05 996.05 | 764.9 30.11 1019.78 1019.78 | 0.6 0.02 0.8 0.8 | 74 | Wind blowing from the west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 5.6 42 | ||||||||||||||||||
01 | 11.7 53 | 746.5 29.39 995.25 995.25 | 764.5 30.1 1019.25 1019.25 | 0.7 0.03 0.93 0.93 | 69 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 8.9 48 | 17.2 63 | 16.0 9.9 | 6.1 43 | |||||||||||||||||
| September 6, Saturday | 22 | 15.0 59 | 745.8 29.36 994.32 994.32 | 763.7 30.07 1018.18 1018.18 | 1.0 0.04 1.33 1.33 | 49 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 4.4 40 | |||||||||||||||||
19 | 17.2 63 | 744.8 29.32 992.99 992.99 | 762.9 30.04 1017.12 1017.12 | 0.2 0.01 0.27 0.27 | 40 | Wind blowing from the west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 8.9 48 | 20.0 68 | 1500-2000 4921-6562 | 16.0 9.9 | 3.3 38 | ||||||||||||||||
16 | 18.3 65 | 744.6 29.31 992.72 992.72 | 762.6 30.02 1016.72 1016.72 | -0.5 -0.02 -0.67 -0.67 | 36 | Wind blowing from the west-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 2000-2500 6562-8202 | 16.0 9.9 | 2.8 37 | ||||||||||||||||||
13 | 17.2 63 | 745.1 29.33 993.39 993.39 | 762.8 30.03 1016.98 1016.98 | 0.0 0 0 0 | 40 | Wind blowing from the west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 8.9 48 | 17.8 64 | 1500-2000 4921-6562 | 16.0 9.9 | 3.3 38 | |||||||||||||||
10 | 14.4 58 | 745.1 29.33 993.39 993.39 | 763.0 30.04 1017.25 1017.25 | 0.7 0.03 0.93 0.93 | 60 | Wind blowing from the west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 20–30%. 2/10–3/10. 2 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 6.7 44 | ||||||||||||||||||
07 | 8.9 48 | 744.4 29.31 992.45 992.45 | 762.4 30.02 1016.45 1016.45 | 0.8 0.03 1.07 1.07 | 80 | 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 | 8.9 48 | 19.4 67 | 1500-2000 4921-6562 | 16.0 9.9 | 5.6 42 | ||||||||||||||||
04 | 9.4 49 | 743.6 29.28 991.39 991.39 | 761.4 29.98 1015.12 1015.12 | 0.3 0.01 0.4 0.4 | 74 | 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 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 5.0 41 | ||||||||||||||||||