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 July 20, Monday	23	18.2 65	747.0 29.41 995.92 995.92	757.2 29.81 1009.52 1009.52	-0.8 -0.03 -1.07 -1.07	70	Wind blowing from the south	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			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.			24.0 14.9	12.7 55
	20	21.4 71	747.8 29.44 996.98 996.98	758.1 29.85 1010.72 1010.72	-0.7 -0.03 -0.93 -0.93	60	Wind blowing from the south	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				12.3 54	26.2 79	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	40%. 4/10. 3 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.	Cirrocumulus alone, or Cirrocumulus accompanied by Cirrus or Cirrostratus or both, but Cirrocumulus is predominant.	24.0 14.9	13.4 56	No precipitation No precipitation	6
	17	23.4 74	748.5 29.47 997.92 997.92	758.8 29.87 1011.65 1011.65	-0.7 -0.03 -0.93 -0.93	54	Wind blowing from the south-southwest	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								1500-2000 4921-6562			24.0 14.9	13.4 56
	14	24.4 76	749.2 29.5 998.85 998.85	759.4 29.9 1012.45 1012.45	-0.6 -0.02 -0.8 -0.8	49	Wind blowing from the south-west	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			60%. 6/10. 5 oktas				12.3 54	25.2 77	Cumulus humilis or Cumulus fractus other than of bad weather, or both.	40%. 4/10. 3 oktas	1500-2000 4921-6562	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	24.0 14.9	13.0 55	No precipitation No precipitation	6
	11	23.0 73	749.8 29.52 999.65 999.65	760.1 29.93 1013.38 1013.38	0.0 0 0 0	51	Wind blowing from the west	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			60%. 6/10. 5 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			24.0 14.9	12.4 54
	08	16.8 62	749.8 29.52 999.65 999.65	760.1 29.93 1013.38 1013.38	0.1 0 0.13 0.13	76	Wind blowing from the west	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0				12.3 54	24.1 75	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	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 fibratus, sometimes uncinus, not progressively invading the sky.	24.0 14.9	12.5 55	No precipitation No precipitation	6
	05	12.6 55	749.7 29.52 999.52 999.52	760.0 29.92 1013.25 1013.25	0.3 0.01 0.4 0.4	85	Wind blowing from the west-southwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0								2500 or more, or no clouds. 8202 or more, or no clouds.			24.0 14.9	10.2 50
	02	13.8 57	749.4 29.5 999.12 999.12	759.7 29.91 1012.85 1012.85	0.1 0 0.13 0.13	81	Wind blowing from the west-southwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0				13.4 56	24.1 75	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	10.5 51	No precipitation No precipitation	6