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	09	-12.2 10	747.3 29.42 996.32 996.32	766.5 30.18 1021.92 1021.92	-1.0 -0.04 -1.33 -1.33	84	Wind blowing from the north	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)				Continuous fall of snowflakes, slight at time of observation.							300-600 984-1968			1.6 1.0	-14.4 6	1.0 0.04	3
	06	-13.9 7	748.3 29.46 997.65 997.65	767.6 30.22 1023.38 1023.38	-2.3 -0.09 -3.07 -3.07	80	Wind blowing from the north	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			100%. 10/10. 8 oktas	Continuous fall of snowflakes, slight at time of observation.			-15.0 5	-13.9 7			300-600 984-1968			2.4 1.5	-16.7 2	1.0 0.04	6
	03	-15.0 5	750.6 29.55 1000.72 1000.72	769.9 30.31 1026.45 1026.45	-2.5 -0.1 -3.33 -3.33	76	Wind blowing from the north	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			100%. 10/10. 8 oktas	Continuous fall of snowflakes, slight at time of observation.							600-1000 1968-3281			8.0 5.0	-18.3 -1	0.8 0.03	3
	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