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 11, Saturday	17	26.7 80	753.4 29.66 1004.45 1004.45	763.6 30.06 1018.05 1018.05	-0.2 -0.01 -0.27 -0.27	38	Wind blowing from the north	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			60%. 6/10. 5 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			8.0 5.0	11.1 52
	14	26.0 79	753.6 29.67 1004.72 1004.72	763.9 30.07 1018.45 1018.45	-0.2 -0.01 -0.27 -0.27	33	Wind blowing from the north-northwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			50%. 5/10. 4 oktas				15.8 60	26.4 80	Cumulus humilis or Cumulus fractus other than of bad weather, or both.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	1500-2000 4921-6562	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	24.0 14.9	8.3 47	No precipitation No precipitation	6
	11	24.4 76	753.8 29.68 1004.98 1004.98	764.1 30.08 1018.72 1018.72	0.4 0.02 0.53 0.53	41	Wind blowing from the north	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0								600-1000 1968-3281			24.0 14.9	10.3 51
	08	19.2 67	753.4 29.66 1004.45 1004.45	763.6 30.06 1018.05 1018.05	1.3 0.05 1.73 1.73	59	Wind blowing from the north	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			no clouds no clouds no clouds				15.8 60	27.3 81						24.0 14.9	10.9 52	No precipitation No precipitation	6
	05	16.1 61	752.1 29.61 1002.72 1002.72	762.4 30.02 1016.45 1016.45	0.9 0.04 1.2 1.2	74	Wind blowing from the north	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 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	11.4 53
	02	18.8 66	751.2 29.57 1001.52 1001.52	761.5 29.98 1015.25 1015.25	0.6 0.02 0.8 0.8	67	Wind blowing from the north	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				16.8 62	27.3 81	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	12.6 55	No precipitation No precipitation	6
July 10, Friday	23	20.3 69	750.6 29.55 1000.72 1000.72	760.9 29.96 1014.45 1014.45	1.3 0.05 1.73 1.73	64	Wind blowing from the north	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			no clouds no clouds no clouds											24.0 14.9	13.3 56
	20	24.6 76	749.3 29.5 998.98 998.98	759.6 29.91 1012.72 1012.72	0.7 0.03 0.93 0.93	47	Wind blowing from the north	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			40%. 4/10. 3 oktas				16.8 62	27.3 81	Cumulus humilis or Cumulus fractus other than of bad weather, or both.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	1000-1500 3281-4921	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	24.0 14.9	12.6 55	No precipitation No precipitation	6
	17	26.9 80	748.6 29.47 998.05 998.05	758.8 29.87 1011.65 1011.65	-0.5 -0.02 -0.67 -0.67	47	Wind blowing from the north-northeast	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			40%. 4/10. 3 oktas								1500-2000 4921-6562			24.0 14.9	14.7 58