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 May 30, Saturday	20	17.0 63	753.7 29.67 1004.85 1004.85	764.1 30.08 1018.72 1018.72	0.0 0 0 0	49	Wind blowing from the south-southeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			20–30%. 2/10–3/10. 2 oktas				8.7 48	22.4 72	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	2500 or more, or no clouds. 8202 or more, or no clouds.	Altocumulus cumulogenitus (or cumulonimbogenitus).	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	6.1 43	No precipitation No precipitation	6
	17	22.2 72	753.7 29.67 1004.85 1004.85	764.1 30.08 1018.72 1018.72	-0.8 -0.03 -1.07 -1.07	28	Wind blowing from the north	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			60%. 6/10. 5 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			24.0 14.9	2.7 37
	14	20.7 69	754.5 29.7 1005.92 1005.92	764.9 30.11 1019.78 1019.78	-0.1 -0 -0.13 -0.13	35	Wind blowing from the north-northeast	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				8.4 47	20.7 69	Cumulus humilis or Cumulus fractus other than of bad weather, or both.	70 – 80%. 7/10 – 8/10. 6 oktas	2000-2500 6562-8202	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	4.5 40	No precipitation No precipitation	6
	11	17.5 64	754.6 29.71 1006.05 1006.05	765.1 30.12 1020.05 1020.05	0.6 0.02 0.8 0.8	44	Wind blowing from the north-northeast	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			60%. 6/10. 5 oktas								1500-2000 4921-6562			24.0 14.9	4.9 41
	08	12.1 54	754.0 29.69 1005.25 1005.25	764.5 30.1 1019.25 1019.25	2.3 0.09 3.07 3.07	63	Wind blowing from the north-northeast	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0				8.4 47		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	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	5.1 41	No precipitation No precipitation	6
	05	9.5 49	751.7 29.59 1002.18 1002.18	762.1 30 1016.05 1016.05	2.3 0.09 3.07 3.07	74	Wind blowing from the north	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			60%. 6/10. 5 oktas								1000-1500 3281-4921			24.0 14.9	5.0 41
	02	9.6 49	749.4 29.5 999.12 999.12	759.7 29.91 1012.85 1012.85	1.7 0.07 2.27 2.27	72	Wind blowing from the north	Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft)			60%. 6/10. 5 oktas				8.4 47	22.7 73	Stratocumulus other than Stratocumulus cumulogenitus.	50%. 5/10. 4 oktas	1000-1500 3281-4921	Altocumulus translucidus at a single level.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	4.7 40	No precipitation No precipitation	6
May 29, Friday	23	8.6 47	747.7 29.44 996.85 996.85	758.1 29.85 1010.72 1010.72	1.9 0.07 2.53 2.53	72	Wind blowing from the north	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 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			24.0 14.9	3.7 39
May 29, Friday	20	10.3 51	745.8 29.36 994.32 994.32	756.1 29.77 1008.05 1008.05	3.2 0.13 4.27 4.27	53	Wind blowing from the north-northwest	Strong breeze (13 m/s) (47 km/h) (29 miles/hour) (25 knots) (6 Bft)			50%. 5/10. 4 oktas	Clouds generally dissolving or becoming less developed.	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	10.3 51	22.7 73	Stratocumulus cumulogenitus.	50%. 5/10. 4 oktas	1000-1500 3281-4921	Altocumulus cumulogenitus (or cumulonimbogenitus).	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	1.1 34	Trace of precipitation Trace of precipitation	6