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
2024 December 19, Thursday	13	-7.9 18	760.0 29.92 1013.25 1013.25	771.0 30.35 1027.92 1027.92	0.3 0.01 0.4 0.4	72	Wind blowing from the north-northwest	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	Clouds generally dissolving or becoming less developed.	Snow and/or other types of solid precipitation	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.	-8.2 17	-0.4 31	Stratocumulus other than Stratocumulus cumulogenitus.	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.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	-12.1 10	Trace of precipitation Trace of precipitation	6			Even layer of compact or wet snow covering ground completely.	3 1.2
	12	-6.9 20	759.5 29.9 1012.58 1012.58	770.5 30.33 1027.25 1027.25		69																	-11.7 11
	11	-7.4 19	759.6 29.91 1012.72 1012.72	770.5 30.33 1027.25 1027.25		72																	-11.6 11
	10	-6.9 20	759.7 29.91 1012.85 1012.85	770.7 30.34 1027.52 1027.52	2.7 0.11 3.6 3.6	74	Wind blowing from the west-northwest	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0								600-1000 1968-3281			24.0 14.9	-10.8 13
	09	-5.4 22	758.8 29.87 1011.65 1011.65	769.6 30.3 1026.05 1026.05		82																	-8.0 18
	08	-5.0 23	757.7 29.83 1010.18 1010.18	768.6 30.26 1024.72 1024.72		80																	-8.0 18
	07	-3.9 25	757.0 29.8 1009.25 1009.25	767.9 30.23 1023.78 1023.78	3.2 0.13 4.27 4.27	76	Wind blowing from the north-northwest	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			50%. 5/10. 4 oktas	Clouds generally dissolving or becoming less developed.	Shower(s).	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.	-4.0 25	2.2 36	Stratocumulus other than Stratocumulus cumulogenitus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	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.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	-7.6 18	Trace of precipitation Trace of precipitation	6			Even layer of compact or wet snow covering ground completely.	3 1.2
	06	-2.8 27	755.9 29.76 1007.78 1007.78	766.7 30.19 1022.18 1022.18		86																	-4.8 23
	05	-1.5 29	754.9 29.72 1006.45 1006.45	765.7 30.15 1020.85 1020.85		88																	-3.3 26
	04	-1.4 29	753.8 29.68 1004.98 1004.98	764.6 30.1 1019.38 1019.38	2.1 0.08 2.8 2.8	100	Wind blowing from the west-northwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas								300-600 984-1968			24.0 14.9	-1.4 29
	03	-1.0 30	753.3 29.66 1004.32 1004.32	764.1 30.08 1018.72 1018.72		100																	-1.0 30
	02	-0.7 31	752.5 29.63 1003.25 1003.25	763.3 30.05 1017.65 1017.65		96																	-1.3 30
	01	-0.4 31	751.7 29.59 1002.18 1002.18	762.4 30.02 1016.45 1016.45	0.7 0.03 0.93 0.93	100	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	Clouds generally dissolving or becoming less developed. Depth of newly fallen snow is 1 cm. 0.4 inches.	Snow and/or other types of solid precipitation	Snow and/or other types of solid precipitation	-0.7 31	2.2 36	Stratocumulus other than Stratocumulus cumulogenitus.	70 – 80%. 7/10 – 8/10. 6 oktas	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.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	-0.4 31	Trace of precipitation Trace of precipitation	6			Even layer of compact or wet snow covering ground completely.	3 1.2
	00	0.0 32	751.3 29.58 1001.65 1001.65	762.0 30 1015.92 1015.92		97																	-0.4 31
December 18, Wednesday	23	-0.1 32	751.2 29.57 1001.52 1001.52	761.9 30 1015.78 1015.78		100																	-0.1 32
	22	0.0 32	751.0 29.57 1001.25 1001.25	761.8 29.99 1015.65 1015.65	-0.1 -0 -0.13 -0.13	100	Wind blowing from the west-southwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas								50-100 164-328			4.8 3.0	0.0 32
	21	0.0 32	751.0 29.57 1001.25 1001.25	761.7 29.99 1015.52 1015.52		100																	0.0 32
	20	0.1 32	751.2 29.57 1001.52 1001.52	761.9 30 1015.78 1015.78		100																	0.1 32
	19	-0.1 32	751.1 29.57 1001.38 1001.38	761.8 29.99 1015.65 1015.65	-0.8 -0.03 -1.07 -1.07	100	Wind blowing from the south-southwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas	Continuous fall of snowflakes, slight at time of observation. Depth of newly fallen snow is 3 cm. 1.2 inches.	Snow and/or other types of solid precipitation	Snow and/or other types of solid precipitation	-0.1 32	2.2 36	Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus.	100%. 10/10. 8 oktas	50-100 164-328	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	6.0 3.7	-0.1 32	2.0 0.08	6			Even layer of compact or wet snow covering ground completely.	2 0.8
	18	0.0 32	751.6 29.59 1002.05 1002.05	762.4 30.02 1016.45 1016.45		100																	0.0 32
	17	0.0 32	751.7 29.59 1002.18 1002.18	762.4 30.02 1016.45 1016.45		100																	0.0 32
	16	0.0 32	751.9 29.6 1002.45 1002.45	762.6 30.02 1016.72 1016.72	-0.6 -0.02 -0.8 -0.8	100	Wind blowing from the south-southwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas								50-100 164-328			2.4 1.5	0.0 32
	15	0.1 32	751.8 29.6 1002.32 1002.32	762.5 30.02 1016.58 1016.58		100																	0.1 32
	14	0.9 34	751.9 29.6 1002.45 1002.45	762.6 30.02 1016.72 1016.72		100																	0.9 34
	13	0.9 34	752.5 29.63 1003.25 1003.25	763.3 30.05 1017.65 1017.65	-2.2 -0.09 -2.93 -2.93	100	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	Continuous fall of snowflakes, slight at time of observation.	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.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	0.4 33	2.2 36	Stratocumulus other than Stratocumulus cumulogenitus.	100%. 10/10. 8 oktas	100-200 328-656			6.0 3.7	0.9 34	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