Weather archive in Ottawa (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 September 20, Sunday	08	9.2 49	752.5 29.63 1003.25 1003.25	763.0 30.04 1017.25 1017.25	0.3 0.01 0.4 0.4	88	Wind blowing from the north	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas				6.3 43		No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	7.3 45	No precipitation No precipitation	6
	05	6.7 44	752.2 29.61 1002.85 1002.85	762.6 30.02 1016.72 1016.72	-1.1 -0.04 -1.47 -1.47	92	Wind blowing from the north-east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			50%. 5/10. 4 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			24.0 14.9	5.5 42
	02	7.4 45	753.3 29.66 1004.32 1004.32	763.8 30.07 1018.32 1018.32	-1.3 -0.05 -1.73 -1.73	88	Wind blowing from the north-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			60%. 6/10. 5 oktas				5.5 42	17.0 63	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	50%. 5/10. 4 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	Altocumulus translucidus at a single level.	Cirrocumulus alone, or Cirrocumulus accompanied by Cirrus or Cirrostratus or both, but Cirrocumulus is predominant.	24.0 14.9	5.5 42	No precipitation No precipitation	6
September 19, Saturday	23	7.3 45	754.6 29.71 1006.05 1006.05	765.1 30.12 1020.05 1020.05	-0.4 -0.02 -0.53 -0.53	81	Wind blowing from the east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			50%. 5/10. 4 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			24.0 14.9	4.3 40
	20	8.8 48	755.0 29.72 1006.58 1006.58	765.6 30.14 1020.72 1020.72	-0.6 -0.02 -0.8 -0.8	82	Wind blowing from the east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas				5.5 42	17.0 63	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	no clouds no clouds no clouds	2500 or more, or no clouds. 8202 or more, or no clouds.	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	24.0 14.9	5.9 43	No precipitation No precipitation	6
	17	16.5 62	755.6 29.75 1007.38 1007.38	766.1 30.16 1021.38 1021.38	-1.6 -0.06 -2.13 -2.13	46	Wind blowing from the south-east	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.			24.0 14.9	4.7 40
	14	15.7 60	757.2 29.81 1009.52 1009.52	767.7 30.22 1023.52 1023.52	-1.3 -0.05 -1.73 -1.73	49	Wind blowing from the north-northeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas				5.5 42	15.7 60	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	no clouds no clouds no clouds	2500 or more, or no clouds. 8202 or more, or no clouds.	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	24.0 14.9	5.0 41	No precipitation No precipitation	6
	11	12.7 55	758.5 29.86 1011.25 1011.25	769.1 30.28 1025.38 1025.38	-0.4 -0.02 -0.53 -0.53	57	Wind blowing from the east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			40%. 4/10. 3 oktas								1000-1500 3281-4921			24.0 14.9	4.4 40
	08	7.5 46	758.9 29.88 1011.78 1011.78	769.5 30.3 1025.92 1025.92	0.2 0.01 0.27 0.27	82	Wind blowing from the north-northeast	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			50%. 5/10. 4 oktas				5.5 42	18.8 66	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	20–30%. 2/10–3/10. 2 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus.	Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole.	24.0 14.9	4.6 40	No precipitation No precipitation	6