Weather archive in Montreal / Pierre Elliott Trudeau (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 August 12, Wednesday	19	20.5 69	752.5 29.63 1003.25 1003.25	755.8 29.76 1007.65 1007.65	-0.3 -0.01 -0.4 -0.4	72	Wind blowing from the west	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 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	State of sky on the whole unchanged.	Shower(s).	Cloud covering more than 1/2 of the sky throughout the appropriate period.	16.4 62	25.9 79	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	600-1000 1968-3281	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	15.3 60	0.8 0.03	6
	16	20.8 69	752.8 29.64 1003.65 1003.65	756.1 29.77 1008.05 1008.05	-0.4 -0.02 -0.53 -0.53	72	Wind blowing from the west-southwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas								1000-1500 3281-4921			24.0 14.9	15.5 60
	13	22.8 73	753.2 29.65 1004.18 1004.18	756.5 29.78 1008.58 1008.58	-0.7 -0.03 -0.93 -0.93	58	Wind blowing from the south-west	Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft)			100%. 10/10. 8 oktas	Precipitation within sight, reaching the ground or the surface of the sea, near to, but not at the station.	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.	16.4 62	25.9 79	Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	50%. 5/10. 4 oktas	1500-2000 4921-6562	Altocumulus cumulogenitus (or cumulonimbogenitus).		19.0 11.8	14.0 57	No precipitation No precipitation	6
	10	23.5 74	753.9 29.68 1005.12 1005.12	757.2 29.81 1009.52 1009.52	-0.1 -0 -0.13 -0.13	62	Wind blowing from the west-southwest	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas								600-1000 1968-3281			45.0 28.0	15.7 60
	07	19.8 68	754.0 29.69 1005.25 1005.25	757.3 29.81 1009.65 1009.65	0.4 0.02 0.53 0.53	78	Wind blowing from the north-northwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			40%. 4/10. 3 oktas				16.4 62	26.8 80	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 at a single level.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	45.0 28.0	15.9 61	No precipitation No precipitation	6
	04	17.4 63	753.6 29.67 1004.72 1004.72	756.9 29.8 1009.12 1009.12	0.0 0 0 0	83	Calm, no wind	Calm			no clouds no clouds no clouds											24.0 14.9	14.5 58
	01	18.6 65	753.6 29.67 1004.72 1004.72	756.9 29.8 1009.12 1009.12	0.4 0.02 0.53 0.53	81	Wind blowing from the south-southwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			no clouds no clouds no clouds	Clouds generally dissolving or becoming less developed.	Shower(s).	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.	17.7 64	26.8 80						24.0 14.9	15.3 60	4.0 0.16	6
August 11, Tuesday	22	18.6 65	753.2 29.65 1004.18 1004.18	756.5 29.78 1008.58 1008.58	0.1 0 0.13 0.13	82	Wind blowing from the north-west	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	15.5 60
August 11, Tuesday	19	23.6 74	753.1 29.65 1004.05 1004.05	756.4 29.78 1008.45 1008.45	0.5 0.02 0.67 0.67	59	Wind blowing from the north-west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			60%. 6/10. 5 oktas	Precipitation within sight, reaching the ground or the surface of the sea, but distant, i.e. estimated to be more than 5 km from the station.	Shower(s).	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.	18.0 64	26.8 80	Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	40%. 4/10. 3 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	15.1 59	4.0 0.16	6