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 March 12, Wednesday | 23 | -6.4 20 | 754.0 29.69 1005.25 1005.25 | 764.9 30.11 1019.78 1019.78 | 59 | -13.2 8 | |||||||||||||||||||||||
22 | -6.1 21 | 754.2 29.69 1005.52 1005.52 | 765.1 30.12 1020.05 1020.05 | 0.5 0.02 0.67 0.67 | 51 | Wind blowing from the south-east | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 24.0 14.9 | -14.6 6 | ||||||||||||||||||
21 | -4.8 23 | 754.3 29.7 1005.65 1005.65 | 765.2 30.13 1020.18 1020.18 | 48 | -14.2 6 | ||||||||||||||||||||||||
20 | -5.0 23 | 754.0 29.69 1005.25 1005.25 | 764.9 30.11 1019.78 1019.78 | 56 | -12.6 9 | ||||||||||||||||||||||||
19 | -4.2 24 | 753.7 29.67 1004.85 1004.85 | 764.7 30.11 1019.52 1019.52 | -0.6 -0.02 -0.8 -0.8 | 49 | Wind blowing from the east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 40%. 4/10. 3 oktas | -8.6 17 | -2.4 28 | 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 | -13.4 8 | No precipitation No precipitation | 6 | ||||||||||
18 | -3.7 25 | 753.7 29.67 1004.85 1004.85 | 764.6 30.1 1019.38 1019.38 | 48 | -13.2 8 | ||||||||||||||||||||||||
17 | -2.9 27 | 754.0 29.69 1005.25 1005.25 | 764.9 30.11 1019.78 1019.78 | 40 | -14.6 6 | ||||||||||||||||||||||||
16 | -3.2 26 | 754.3 29.7 1005.65 1005.65 | 765.2 30.13 1020.18 1020.18 | -0.7 -0.03 -0.93 -0.93 | 38 | Wind blowing from the west-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 60%. 6/10. 5 oktas | 2000-2500 6562-8202 | 24.0 14.9 | -15.6 4 | ||||||||||||||||||
15 | -3.5 26 | 754.6 29.71 1006.05 1006.05 | 765.5 30.14 1020.58 1020.58 | 41 | -15.1 5 | ||||||||||||||||||||||||
14 | -3.7 25 | 754.8 29.72 1006.32 1006.32 | 765.7 30.15 1020.85 1020.85 | 39 | -15.9 3 | ||||||||||||||||||||||||
13 | -4.2 24 | 755.0 29.72 1006.58 1006.58 | 765.9 30.15 1021.12 1021.12 | -0.8 -0.03 -1.07 -1.07 | 39 | Wind blowing from the west | 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 | -8.6 17 | -4.1 25 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 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 | -16.3 3 | No precipitation No precipitation | 6 | ||||||||||
12 | -5.0 23 | 755.4 29.74 1007.12 1007.12 | 766.3 30.17 1021.65 1021.65 | 41 | -16.4 2 | ||||||||||||||||||||||||
11 | -5.8 22 | 755.5 29.74 1007.25 1007.25 | 766.3 30.17 1021.65 1021.65 | 40 | -17.4 1 | ||||||||||||||||||||||||
10 | -6.5 20 | 755.8 29.76 1007.65 1007.65 | 766.7 30.19 1022.18 1022.18 | 1.0 0.04 1.33 1.33 | 41 | Wind blowing from the west-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 24.0 14.9 | -17.6 0 | ||||||||||||||||||
09 | -7.0 19 | 755.5 29.74 1007.25 1007.25 | 766.4 30.17 1021.78 1021.78 | 45 | -17.1 1 | ||||||||||||||||||||||||
08 | -7.7 18 | 755.6 29.75 1007.38 1007.38 | 766.5 30.18 1021.92 1021.92 | 48 | -16.8 2 | ||||||||||||||||||||||||
07 | -8.2 17 | 754.8 29.72 1006.32 1006.32 | 765.7 30.15 1020.85 1020.85 | 1.3 0.05 1.73 1.73 | 56 | Wind blowing from the north | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 40%. 4/10. 3 oktas | -8.6 17 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 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 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 fibratus, sometimes uncinus, not progressively invading the sky. | 24.0 14.9 | -15.6 4 | No precipitation No precipitation | 6 | Compact or wet snow (with or without ice) covering at least one-half of the ground but ground not completely covered. | 25 9.8 | |||||||||
06 | -8.0 18 | 754.5 29.7 1005.92 1005.92 | 765.3 30.13 1020.32 1020.32 | 56 | -15.4 4 | ||||||||||||||||||||||||
05 | -7.7 18 | 754.1 29.69 1005.38 1005.38 | 764.9 30.11 1019.78 1019.78 | 55 | -15.2 5 | ||||||||||||||||||||||||
04 | -7.0 19 | 753.5 29.67 1004.58 1004.58 | 764.2 30.09 1018.85 1018.85 | 1.3 0.05 1.73 1.73 | 51 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 24.0 14.9 | -15.6 4 | ||||||||||||||||||
03 | -6.6 20 | 753.4 29.66 1004.45 1004.45 | 764.2 30.09 1018.85 1018.85 | 52 | -15.0 5 | ||||||||||||||||||||||||
02 | -5.7 22 | 752.8 29.64 1003.65 1003.65 | 763.6 30.06 1018.05 1018.05 | 53 | -13.8 7 | ||||||||||||||||||||||||
01 | -4.8 23 | 752.2 29.61 1002.85 1002.85 | 762.8 30.03 1016.98 1016.98 | 2.7 0.11 3.6 3.6 | 52 | Wind blowing from the north-northwest | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 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 | -4.8 23 | 11.6 53 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 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 | -13.2 8 | No precipitation No precipitation | 6 | ||||||||||
00 | -3.9 25 | 751.2 29.57 1001.52 1001.52 | 761.8 29.99 1015.65 1015.65 | 51 | -12.6 9 | ||||||||||||||||||||||||