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
2025 September 15, Monday	00	14.0 57	757.6 29.83 1010.05 1010.05	768.0 30.24 1023.92 1023.92		76																	9.7 49
September 14, Sunday	23	15.1 59	757.3 29.81 1009.65 1009.65	767.7 30.22 1023.52 1023.52	1.4 0.06 1.87 1.87	72	Wind blowing from the north-northeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			no clouds no clouds no clouds											24.0 14.9	10.0 50
	22	16.0 61	756.8 29.8 1008.98 1008.98	767.2 30.2 1022.85 1022.85		68																	10.0 50
	21	17.6 64	756.4 29.78 1008.45 1008.45	766.9 30.19 1022.45 1022.45		61																	9.9 50
	20	18.5 65	755.9 29.76 1007.78 1007.78	766.3 30.17 1021.65 1021.65	1.2 0.05 1.6 1.6	57	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				10.6 51	23.9 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 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	9.8 50	No precipitation No precipitation	6
	19	20.0 68	755.5 29.74 1007.25 1007.25	765.9 30.15 1021.12 1021.12		52																	9.9 50
	18	21.9 71	755.2 29.73 1006.85 1006.85	765.6 30.14 1020.72 1020.72		47																	10.1 50
	17	23.2 74	754.7 29.71 1006.18 1006.18	765.1 30.12 1020.05 1020.05	0.4 0.02 0.53 0.53	46	Wind blowing from the north-northwest	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			20–30%. 2/10–3/10. 2 oktas								1500-2000 4921-6562			24.0 14.9	10.9 52
	16	23.4 74	754.5 29.7 1005.92 1005.92	764.8 30.11 1019.65 1019.65		43																	10.2 50
	15	23.4 74	754.3 29.7 1005.65 1005.65	764.7 30.11 1019.52 1019.52		43																	10.2 50
	14	23.0 73	754.3 29.7 1005.65 1005.65	764.6 30.1 1019.38 1019.38	0.3 0.01 0.4 0.4	45	Wind blowing from the north	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			50%. 5/10. 4 oktas				10.6 51	23.6 74	Cumulus humilis or Cumulus fractus other than of bad weather, or both.	50%. 5/10. 4 oktas	1500-2000 4921-6562	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	10.4 51	No precipitation No precipitation	6
	13	22.0 72	754.3 29.7 1005.65 1005.65	764.7 30.11 1019.52 1019.52		52																	11.7 53
	12	21.5 71	754.2 29.69 1005.52 1005.52	764.5 30.1 1019.25 1019.25		57																	12.6 55
	11	20.8 69	754.0 29.69 1005.25 1005.25	764.4 30.09 1019.12 1019.12	0.9 0.04 1.2 1.2	61	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								600-1000 1968-3281			24.0 14.9	13.0 55
	10	18.9 66	754.0 29.69 1005.25 1005.25	764.3 30.09 1018.98 1018.98		69																	13.1 56
	09	17.3 63	753.5 29.67 1004.58 1004.58	763.9 30.07 1018.45 1018.45		75																	12.8 55
	08	13.8 57	753.1 29.65 1004.05 1004.05	763.6 30.06 1018.05 1018.05	1.3 0.05 1.73 1.73	95	Wind blowing from the west-northwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				10.6 51	22.6 73	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	70 – 80%. 7/10 – 8/10. 6 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.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	13.0 55	No precipitation No precipitation	6
	07	13.6 56	752.8 29.64 1003.65 1003.65	763.2 30.05 1017.52 1017.52		94																	12.6 55
	06	11.2 52	752.1 29.61 1002.72 1002.72	762.4 30.02 1016.45 1016.45		98																	10.9 52
	05	12.4 54	751.8 29.6 1002.32 1002.32	762.1 30 1016.05 1016.05	0.1 0 0.13 0.13	98	Wind blowing from the west	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.			24.0 14.9	12.1 54
	04	13.2 56	751.4 29.58 1001.78 1001.78	761.8 29.99 1015.65 1015.65		96																	12.6 55
	03	12.2 54	751.6 29.59 1002.05 1002.05	761.9 30 1015.78 1015.78		97																	11.7 53
	02	13.0 55	751.7 29.59 1002.18 1002.18	762.1 30 1016.05 1016.05	-0.2 -0.01 -0.27 -0.27	94	Wind blowing from the south-west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas				11.1 52	22.6 73	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	50%. 5/10. 4 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	12.1 54	No precipitation No precipitation	6
	01	13.6 56	751.6 29.59 1002.05 1002.05	761.9 30 1015.78 1015.78		91																	12.2 54
	00	14.8 59	751.7 29.59 1002.18 1002.18	762.1 30 1016.05 1016.05		85																	12.3 54