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 2, Thursday	02	20.6 69	748.6 29.47 998.05 998.05	758.8 29.87 1011.65 1011.65	0.4 0.02 0.53 0.53	98	Wind blowing from the south-west	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			40%. 4/10. 3 oktas	Clouds generally dissolving or becoming less developed.	Thunderstorm(s) with or without precipitation.	Shower(s).	19.4 67	32.4 90	Stratus nebulosus or Stratus fractus other than of bad weather, or both.	20–30%. 2/10–3/10. 2 oktas	200-300 656-984	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	22.0 13.7	20.3 69	7.0 0.28	6
July 1, Wednesday	23	21.8 71	748.2 29.46 997.52 997.52	758.4 29.86 1011.12 1011.12	-0.7 -0.03 -0.93 -0.93	98	Wind blowing from the south-west	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			40%. 4/10. 3 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			24.0 14.9	21.4 71
	20	24.2 76	748.9 29.48 998.45 998.45	759.1 29.89 1012.05 1012.05	-0.6 -0.02 -0.8 -0.8	83	Wind blowing from the east-northeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	Thunderstorm (with or without precipitation).	Thunderstorm(s) with or without precipitation.	Shower(s).	19.4 67	32.4 90	Stratocumulus cumulogenitus.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968	Altocumulus cumulogenitus (or cumulonimbogenitus).		24.0 14.9	21.2 70	111.0 4.37	6
	17	21.6 71	749.5 29.51 999.25 999.25	759.8 29.91 1012.98 1012.98	1.3 0.05 1.73 1.73	93	Wind blowing from the south	Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft)			100%. 10/10. 8 oktas								300-600 984-1968			12.0 7.5	20.5 69
	14	30.2 86	748.2 29.46 997.52 997.52	758.3 29.85 1010.98 1010.98	-0.4 -0.02 -0.53 -0.53	77	Wind blowing from the south	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Thunderstorm, but no precipitation at the time of observation.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	19.4 67	32.4 90	Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	60%. 6/10. 5 oktas	600-1000 1968-3281	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	25.7 78	No precipitation No precipitation	6
	11	28.6 83	748.6 29.47 998.05 998.05	758.8 29.87 1011.65 1011.65	-0.5 -0.02 -0.67 -0.67	79	Wind blowing from the south-southwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			50%. 5/10. 4 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			24.0 14.9	24.6 76
	08	22.1 72	749.1 29.49 998.72 998.72	759.3 29.89 1012.32 1012.32	0.6 0.02 0.8 0.8	94	Wind blowing from the south	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			40%. 4/10. 3 oktas	State of sky on the whole unchanged.	Fog or ice fog or thick haze.	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.	19.4 67	24.5 76	Stratus nebulosus or Stratus 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	300-600 984-1968	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 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	21.1 70	No precipitation No precipitation	6
	05	19.9 68	748.5 29.47 997.92 997.92	758.7 29.87 1011.52 1011.52	0.5 0.02 0.67 0.67	99	Wind blowing from the south	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			6.0 3.7	19.8 68
	02	21.4 71	748.0 29.45 997.25 997.25	758.3 29.85 1010.98 1010.98	0.0 0 0 0	97	Wind blowing from the west-northwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	State of sky on the whole unchanged.	Thunderstorm(s) with or without precipitation.	Shower(s).	15.1 59	24.5 76	Stratus nebulosus or Stratus fractus other than of bad weather, or both.	20–30%. 2/10–3/10. 2 oktas	100-200 328-656	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 (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered.	24.0 14.9	20.9 70	3.0 0.12	6