WEATHER IN Ottawa
Climate tables. Data for Ottawa.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -36.1 (1884) | -14.5 | -10.0 | -5.5 | 15.6 (1874) |
| february | -36.1 (1888) | -13.1 | -8.3 | -3.6 | 12.4 (2000) |
| march | -36.7 (1938) | -7.0 | -2.3 | 2.4 | 27.4 (2012) |
| april | -19.4 (1887) | 0.5 | 5.9 | 11.3 | 31.1 (1990) |
| may | -6.1 (1907) | 7.5 | 13.6 | 19.5 | 35.8 (2010) |
| june | -0.1 (1980) | 12.8 | 18.6 | 24.4 | 36.1 (1925) |
| july | 5.0 (1946) | 15.4 | 21.2 | 26.9 | 38.3 (1931) |
| august | 1.1 (1884) | 14.3 | 20.0 | 25.7 | 37.8 (1944) |
| september | -3.0 (1980) | 9.7 | 15.4 | 21.1 | 38.9 (1931) |
| october | -9.4 (1933) | 3.5 | 8.4 | 13.2 | 30.6 (1922) |
| november | -30.6 (1875) | -2.6 | 1.5 | 5.7 | 23.9 (1938) |
| december | -36.7 (1933) | -9.4 | -5.6 | -1.7 | 18.4 (2011) |
| year | () | () |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 66.2 | 14.7 (1961) | 164.7 (1874) | 48.8 (1905) |
| february | 52.0 | 1.6 (1978) | 170.8 (1887) | 50.8 (1876) |
| march | 64.2 | 12.8 (1915) | 138.5 (1877) | 71.1 (1881) |
| april | 81.7 | 1.8 (1879) | 202.5 (1885) | 50.8 (1885) |
| may | 76.3 | 3.1 (1903) | 179.0 (1916) | 53.3 (1916) |
| june | 99.4 | 14.0 (1991) | 224.8 (2002) | 90.4 (2011) |
| july | 94.5 | 19.2 (1875) | 249.8 (2017) | 142.7 (1902) |
| august | 82.1 | 5.1 (1876) | 192.2 (1915) | 71.1 (1887) |
| september | 84.6 | 13.3 (1948) | 173.0 (1945) | 135.4 (2004) |
| october | 86.8 | 7.1 (1947) | 188.8 (1995) | 94.0 (1887) |
| november | 70.3 | 17.6 (1903) | 201.3 (1927) | 54.1 (1912) |
| december | 73.0 | 13.6 (1889) | 143.5 (1983) | 43.7 (1973) |
| year | () | () | () |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |