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 September 25, Friday | 20 | 17.7 64 | 757.2 29.81 1009.52 1009.52 | 767.7 30.22 1023.52 1023.52 | -0.4 -0.02 -0.53 -0.53 | 55 | 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 | 5.8 42 | 23.8 75 | 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 at a single level. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 24.0 14.9 | 8.4 47 | No precipitation No precipitation | 6 | |||||||||
17 | 23.1 74 | 757.6 29.83 1010.05 1010.05 | 768.1 30.24 1024.05 1024.05 | -1.4 -0.06 -1.87 -1.87 | 39 | Wind blowing from the north-northeast | 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 | 8.3 47 | ||||||||||||||||||
14 | 23.0 73 | 759.0 29.88 1011.92 1011.92 | 769.4 30.29 1025.78 1025.78 | -1.8 -0.07 -2.4 -2.4 | 42 | 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 | 5.8 42 | 23.1 74 | 24.0 14.9 | 9.3 49 | No precipitation No precipitation | 6 | |||||||||||||||
11 | 17.5 64 | 760.8 29.95 1014.32 1014.32 | 771.4 30.37 1028.45 1028.45 | 0.0 0 0 0 | 59 | Wind blowing from the north-northeast | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 24.0 14.9 | 9.3 49 | |||||||||||||||||||
08 | 10.2 50 | 760.8 29.95 1014.32 1014.32 | 771.4 30.37 1028.45 1028.45 | 0.4 0.02 0.53 0.53 | 86 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | no clouds no clouds no clouds | 5.8 42 | 24.0 14.9 | 7.9 46 | No precipitation No precipitation | 6 | ||||||||||||||||
05 | 8.0 46 | 760.4 29.94 1013.78 1013.78 | 770.9 30.35 1027.78 1027.78 | -0.8 -0.03 -1.07 -1.07 | 86 | Wind blowing from the north-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 24.0 14.9 | 5.7 42 | |||||||||||||||||||
02 | 11.1 52 | 761.2 29.97 1014.85 1014.85 | 771.7 30.38 1028.85 1028.85 | -0.8 -0.03 -1.07 -1.07 | 77 | Wind blowing from the north-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 4.0 39 | 20.1 68 | 24.0 14.9 | 7.1 45 | No precipitation No precipitation | 6 | |||||||||||||||
| September 24, Thursday | 23 | 9.8 50 | 762.0 30 1015.92 1015.92 | 772.6 30.42 1030.05 1030.05 | -0.3 -0.01 -0.4 -0.4 | 70 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 24.0 14.9 | 4.6 40 | ||||||||||||||||||
20 | 11.4 53 | 762.3 30.01 1016.32 1016.32 | 772.9 30.43 1030.45 1030.45 | -0.4 -0.02 -0.53 -0.53 | 64 | Wind blowing from the east-northeast | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 4.0 39 | 20.1 68 | 24.0 14.9 | 4.8 41 | No precipitation No precipitation | 6 | |||||||||||||||