Weather archive in Montreal / Pierre Elliott Trudeau (airport)

To receive explanations, hover over the appropriate heading

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
2025 September 17, Wednesday	13	24.0 75	761.5 29.98 1015.25 1015.25	764.8 30.11 1019.65 1019.65	-1.0 -0.04 -1.33 -1.33	49	Wind blowing from the south-southwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			100%. 10/10. 8 oktas				12.4 54	24.6 76	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.	Cirrostratus covering the whole sky.	24.0 14.9	12.7 55	No precipitation No precipitation	6
	12	23.4 74	761.8 29.99 1015.65 1015.65	765.1 30.12 1020.05 1020.05		51																	12.6 55
	11	22.9 73	762.3 30.01 1016.32 1016.32	765.6 30.14 1020.72 1020.72		53																	12.9 55
	10	21.0 70	762.5 30.02 1016.58 1016.58	765.8 30.15 1020.98 1020.98	-0.8 -0.03 -1.07 -1.07	62	Calm, no wind	Calm			100%. 10/10. 8 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			24.0 14.9	13.4 56
	08	16.8 62	762.9 30.04 1017.12 1017.12	766.2 30.17 1021.52 1021.52		78																	13.0 55
	07	14.8 59	763.3 30.05 1017.65 1017.65	766.6 30.18 1022.05 1022.05	0.6 0.02 0.8 0.8	85	Wind blowing from the north-east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				12.4 54	25.0 77	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	12.2 54	No precipitation No precipitation	6
	06	13.3 56	763.0 30.04 1017.25 1017.25	766.3 30.17 1021.65 1021.65		87																	11.2 52
	05	12.6 55	763.0 30.04 1017.25 1017.25	766.3 30.17 1021.65 1021.65		86																	10.3 51
	04	12.6 55	762.7 30.03 1016.85 1016.85	766.0 30.16 1021.25 1021.25	-0.8 -0.03 -1.07 -1.07	85	Wind blowing from the north-northeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			60%. 6/10. 5 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			24.0 14.9	10.2 50
	03	13.1 56	763.0 30.04 1017.25 1017.25	766.3 30.17 1021.65 1021.65		88																	11.1 52
	02	14.2 58	763.2 30.05 1017.52 1017.52	766.5 30.18 1021.92 1021.92		86																	11.8 53
	01	15.2 59	763.5 30.06 1017.92 1017.92	766.8 30.19 1022.32 1022.32	-0.5 -0.02 -0.67 -0.67	86	Wind blowing from the north	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0				10.6 51	25.0 77	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	12.9 55	No precipitation No precipitation	6
	00	15.4 60	763.6 30.06 1018.05 1018.05	766.9 30.19 1022.45 1022.45		81																	12.2 54
September 16, Tuesday	23	16.1 61	763.9 30.07 1018.45 1018.45	767.2 30.2 1022.85 1022.85		79																	12.5 55
	22	17.1 63	764.0 30.08 1018.58 1018.58	767.3 30.21 1022.98 1022.98	0.0 0 0 0	75	Wind blowing from the north-east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 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	12.7 55
	21	17.7 64	763.9 30.07 1018.45 1018.45	767.2 30.2 1022.85 1022.85		71																	12.4 54
	20	18.3 65	764.1 30.08 1018.72 1018.72	767.4 30.21 1023.12 1023.12		68																	12.2 54
	19	19.9 68	764.0 30.08 1018.58 1018.58	767.3 30.21 1022.98 1022.98	-0.5 -0.02 -0.67 -0.67	60	Wind blowing from the east-northeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas				10.6 51	25.0 77	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	11.9 53	No precipitation No precipitation	6
	18	20.8 69	764.1 30.08 1018.72 1018.72	767.4 30.21 1023.12 1023.12		53																	10.9 52
	17	24.2 76	764.2 30.09 1018.85 1018.85	767.5 30.22 1023.25 1023.25		45																	11.5 53
	16	24.6 76	764.5 30.1 1019.25 1019.25	767.8 30.23 1023.65 1023.65	-0.8 -0.03 -1.07 -1.07	43	Wind blowing from the north-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.			45.0 28.0	11.0 52
	15	24.4 76	764.8 30.11 1019.65 1019.65	768.1 30.24 1024.05 1024.05		41																	10.4 51
	14	24.4 76	765.0 30.12 1019.92 1019.92	768.3 30.25 1024.32 1024.32		45																	11.6 53
	13	23.7 75	765.3 30.13 1020.32 1020.32	768.6 30.26 1024.72 1024.72	-1.5 -0.06 -2 -2	44	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				10.6 51	23.8 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.	45.0 28.0	10.8 51	No precipitation No precipitation	6