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 January 2, Thursday	13	-0.8 31	748.6 29.47 998.05 998.05	751.9 29.6 1002.45 1002.45	0.0 0 0 0	69	Wind blowing from the west	Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft)			100%. 10/10. 8 oktas	Snow shower(s), slight.	Snow and/or other types of solid precipitation	Cloud covering more than 1/2 of the sky throughout the appropriate period.	-1.2 30	0.7 33	Cumulus humilis or Cumulus fractus other than of bad weather, or both.	70 – 80%. 7/10 – 8/10. 6 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.		24.0 14.9	-5.8 22	Trace of precipitation Trace of precipitation	6			Compact or wet snow (with or without ice) covering less than one-half of the ground.	less than 0.5 less than 0.2
	11	-0.8 31	748.6 29.47 998.05 998.05	751.9 29.6 1002.45 1002.45		71																	-5.5 22
	10	-0.8 31	748.6 29.47 998.05 998.05	751.9 29.6 1002.45 1002.45	1.5 0.06 2 2	67	Wind blowing from the west	Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft)			100%. 10/10. 8 oktas								600-1000 1968-3281			24.0 14.9	-6.2 21
	09	-1.2 30	748.2 29.46 997.52 997.52	751.5 29.59 1001.92 1001.92		72																	-5.6 22
	08	-1.0 30	747.4 29.43 996.45 996.45	750.7 29.56 1000.85 1000.85		71																	-5.6 22
	07	-1.2 30	747.1 29.41 996.05 996.05	750.4 29.54 1000.45 1000.45	1.4 0.06 1.87 1.87	78	Wind blowing from the west	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)			100%. 10/10. 8 oktas	Continuous fall of snowflakes, slight at time of observation.	Snow and/or other types of solid precipitation	Snow and/or other types of solid precipitation	-1.2 30	1.6 35	Stratocumulus other than Stratocumulus cumulogenitus.	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	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.		19.0 11.8	-4.6 24	Trace of precipitation Trace of precipitation	6			Compact or wet snow (with or without ice) covering less than one-half of the ground.	less than 0.5 less than 0.2
	06	-1.1 30	746.5 29.39 995.25 995.25	749.8 29.52 999.65 999.65		80																	-4.2 24
	05	-1.0 30	746.1 29.37 994.72 994.72	749.4 29.5 999.12 999.12		83																	-3.6 26
	04	-0.7 31	745.7 29.36 994.19 994.19	749.0 29.49 998.58 998.58	1.4 0.06 1.87 1.87	82	Wind blowing from the west	Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft)			100%. 10/10. 8 oktas								300-600 984-1968			9.0 5.6	-3.5 26
	03	-0.2 32	745.4 29.35 993.79 993.79	748.7 29.48 998.18 998.18		83																	-2.8 27
	02	0.2 32	744.9 29.33 993.12 993.12	748.2 29.46 997.52 997.52		83																	-2.4 28
	01	0.8 33	744.3 29.3 992.32 992.32	747.6 29.43 996.72 996.72	0.2 0.01 0.27 0.27	84	Wind blowing from the west	Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft)			100%. 10/10. 8 oktas	Continuous fall of snowflakes, slight at time of observation.	Rain and snow or other types of solid precipitation	Rain.	0.3 33	1.6 35	Stratus nebulosus or Stratus fractus other than of bad weather, or both.	100%. 10/10. 8 oktas	300-600 984-1968			6.0 3.7	-1.6 29	0.4 0.02	6			Compact or wet snow (with or without ice) covering less than one-half of the ground.	less than 0.5 less than 0.2
	00	1.2 34	744.1 29.3 992.05 992.05	747.4 29.43 996.45 996.45		87																	-0.7 31
January 1, Wednesday	23	1.2 34	744.1 29.3 992.05 992.05	747.4 29.43 996.45 996.45		92																	0.1 32
	22	1.0 34	744.1 29.3 992.05 992.05	747.4 29.43 996.45 996.45	-0.4 -0.02 -0.53 -0.53	94	Wind blowing from the west	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas								200-300 656-984			9.0 5.6	0.1 32
	21	0.7 33	744.4 29.31 992.45 992.45	747.7 29.44 996.85 996.85		95																	0.0 32
	20	0.4 33	744.5 29.31 992.59 992.59	747.8 29.44 996.98 996.98		96																	-0.1 32
	19	0.4 33	744.5 29.31 992.59 992.59	747.8 29.44 996.98 996.98	0.1 0 0.13 0.13	96	Wind blowing from the west	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			100%. 10/10. 8 oktas	Continuous fall of snowflakes, slight at time of observation.	Rain and snow or other types of solid precipitation	Rain.	0.3 33	1.5 35	Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus.	100%. 10/10. 8 oktas	100-200 328-656			4.8 3.0	-0.1 32	1.0 0.04	6			Compact or wet snow (with or without ice) covering less than one-half of the ground.	less than 0.5 less than 0.2
	18	0.4 33	744.7 29.32 992.85 992.85	748.0 29.45 997.25 997.25		96																	-0.2 32
	17	0.4 33	744.6 29.31 992.72 992.72	747.9 29.44 997.12 997.12		97																	0.0 32
	16	0.6 33	744.4 29.31 992.45 992.45	747.7 29.44 996.85 996.85	0.1 0 0.13 0.13	97	Wind blowing from the west-northwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas								50-100 164-328			2.8 1.7	0.1 32
	15	1.3 34	744.2 29.3 992.19 992.19	747.5 29.43 996.58 996.58		95																	0.6 33
	14	1.3 34	744.1 29.3 992.05 992.05	747.4 29.43 996.45 996.45		96																	0.7 33
	13	1.4 35	744.3 29.3 992.32 992.32	747.6 29.43 996.72 996.72	-2.4 -0.09 -3.2 -3.2	94	Wind blowing from the north-east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			100%. 10/10. 8 oktas	Rain or drizzle and snow, slight. Depth of newly fallen snow is 5 cm. 2.0 inches.	Shower(s).	Rain.	0.3 33	1.6 35	Stratus nebulosus or Stratus fractus other than of bad weather, or both.	100%. 10/10. 8 oktas	100-200 328-656			9.0 5.6	0.6 33	5.0 0.2	6			Compact or wet snow (with or without ice) covering less than one-half of the ground.	less than 0.5 less than 0.2