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Climate & Temperature > Canada > Ottawa, Ontario Climate
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Climate of Ottawa, Ontario, Canada Average Weather

Ottawa, Ontario Climate Graph
  • Ottawa, Ontario, Canada is at 45°18'N, 75°39'W, 114 m (374 ft). See map.
  • Ottawa, Ontario has a humid continental climate with severe winters, no dry season, warm summers and strong seasonality (Köppen-Geiger classification: Dfb).
  • According to the Holdridge life zones system of bioclimatic classification Ottawa, Ontario is situated in or near the cool temperate moist forest biome.
  • The annual mean temperature is 6 degrees Celsius (42.8 degrees Fahrenheit). See the temperatures page for a monthly breakdown and the fixed scale graph.
  • Average monthly temperatures vary by 31.5 °C (56.7°F). This indicates that the continentality type is continental, subtype truly continental.
  • In the winter time records indicate temperatures by day reach -4.8°C (23.3°F) on average falling to -13.4°C (7.9°F) overnight.
  • In spring time temperatures climb reaching 10.4°C (50.7°F) generally in the afternoon with overnight lows of 0.4°C (32.7°F).
  • During summer average high temperatures are 24.9°C (76.8°F) and average low temperatures are 14°C (57.1°F).
  • Come autumn/ fall temperatures decrease achieving average highs of 12.4°C (54.4°F) during the day and lows of 3.8°C (38.9°F) generally shortly after sunrise.
  • Total annual Precipitation averages 869.5 mm (34.2 inches) which is equivalent to 869.5 Litres/m² (21.33 Gallons/ft²).
  • On average there are 1989 hours of sunshine per year. Visit the sunshine and daylight section to check monthly details including how high in the sky the sun reaches each month.
  • If you were to burrow down through the Earth from Ottawa, Ontario you would come out nearest to the climate station at Albany, Western Australia, Australia where you would find a Mediterranean climate.

Table

The climate table uses colour to represent the data so you can get a good idea about the climate at a glance. The colour also helps when comparing two or more locations that you can switch between in separate tabs in your browser. There are links along the side and top to the various sections where we are adding additional details including in the new discussion section where you can read and add posts about the various aspects!

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -6 (20) -5 (24) 2 (35) 11 (51) 19 (65) 24 (74) 26 (80) 25 (76) 20 (67) 13 (55) 5 (41) -4 (26) 11 (51)
average temperature iconAverage Temperature °C ( °F) -11 (13) -9 (15) -3 (27) 6 (43) 13 (55) 18 (65) 21 (69) 19 (67) 15 (58) 8 (47) 2 (35) -7 (19) 6 (43)
minimum temperature iconAverage Min Temperature °C ( °F) -15 (5) -14 (7) -7 (19) 1 (34) 7 (45) 13 (55) 15 (60) 14 (57) 10 (49) 4 (39) -2 (29) -11 (12) 1 (34)
rainfall iconAverage Precipitation mm (in) 51 (2) 50 (2) 57 (2) 65 (3) 77 (3) 84 (3) 87 (3) 88 (3) 84 (3) 75 (3) 81 (3) 73 (3) 870 (34)
rain days iconNumber of Wet Days (probability of rain on a day) 13 (42%) 13 (46%) 12 (39%) 11 (37%) 11 (35%) 11 (37%) 11 (35%) 10 (32%) 11 (37%) 11 (35%) 13 (43%) 14 (45%)   141 (39%)
sunshine iconAverage Sunlight Hours/ Day 03:00 03:53 04:30 05:36 07:25 08:20 09:03 08:11 05:46 04:21 02:36 02:29   05:26
daylight iconAverage Daylight Hours & Minutes/ Day 09:09 10:19 11:51 13:28 14:52 15:35 15:15 14:03 12:29 10:51 09:28 08:47   12:00
sunny or cloudy iconPercentage of Sunny (Cloudy) Daylight Hours 33 (67) 38 (62) 39 (61) 42 (58) 51 (49) 54 (46) 60 (40) 59 (41) 47 (53) 41 (59) 28 (72) 29 (71)   45 (55)

Climate of Ottawa, Ontario, Canada Discussion

We are pleased to announce the release of the new discussion section. Here you will discover a wealth of knowledge about the various aspects of the local climate presented by our international community. We would like to invite you to help get discussion started by visiting those locations you are familiar with. Is there something noteworthy about the climate there that you can enlighten us about? Discussion is subdivided into specific topics such as the months of the year and aspects such as day length and temperature. When you have an idea of something fascinating to share please visit the specific page most fitting and add your post using the simple interface. No registration or third party network login is necessary.

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