WEATHER IN Slave Lake
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Climate tables. Data for Slave Lake.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -47.2 (1936) | -18.0 | -13.1 | -8.1 | 16.3 (2003) |
| february | -48.3 (1947) | -16.1 | -10.5 | -4.9 | 17.2 (1938) |
| march | -42.5 (2003) | -10.6 | -5.1 | 0.6 | 18.3 (1926) |
| april | -36.1 (1954) | -3.1 | 2.7 | 8.5 | 28.6 (1977) |
| may | -11.1 (1959) | 3.1 | 9.5 | 15.8 | 33.3 (1936) |
| june | -3.3 (1927) | 8.4 | 14.0 | 19.6 | 38.3 (2021) |
| july | -1.1 (1942) | 11.1 | 16.5 | 22.0 | 35.7 (2021) |
| august | -4.4 (1948) | 9.6 | 15.3 | 20.9 | 34.9 (1998) |
| september | -13.3 (1951) | 4.5 | 10.0 | 15.6 | 30.1 (2017) |
| october | -30.0 (1925) | -1.2 | 3.4 | 8.1 | 28.1 (1980) |
| november | -36.1 (1985) | -9.4 | -5.2 | -1.0 | 19.4 (1949) |
| december | -44.4 (1938) | -16.4 | -11.8 | -7.1 | 14.4 (1999) |
| year | () | () |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 18.9 | 4.5 (2001) | 137.1 (1935) | 30.5 (1935) |
| february | 11.5 | 0.0 (1934) | 53.4 (1925) | 15.5 (1996) |
| march | 13.8 | 0.0 (2019) | 104.0 (1935) | 38.1 (1939) |
| april | 31.5 | 0.0 (1970) | 60.0 (2014) | 40.1 (2014) |
| may | 44.3 | 4.9 (2019) | 110.5 (2006) | 45.5 (2005) |
| june | 77.6 | 4.5 (1948) | 199.5 (2011) | 82.4 (1983) |
| july | 81.2 | 9.4 (1960) | 199.6 (2011) | 96.9 (2011) |
| august | 59.4 | 4.3 (1940) | 145.0 (2007) | 71.0 (1990) |
| september | 42.4 | 0.0 (1940) | 134.0 (2004) | 62.5 (2004) |
| october | 26.8 | 3.0 (1989) | 78.2 (1933) | 30.5 (1939) |
| november | 14.6 | 0.0 (1928) | 66.2 (1937) | 19.3 (1933) |
| december | 11.6 | 0.0 (2015) | 70.2 (1953) | 27.9 (1953) |
| 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 |