WEATHER IN Saint John
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Climate tables. Data for Saint John.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -33.2 (2009) | -13.2 | -7.8 | -2.4 | 14.8 (2018) |
| february | -36.7 (1948) | -12.6 | -7.1 | -1.5 | 14.5 (2016) |
| march | -30.0 (1948) | -7.5 | -2.5 | 2.6 | 25.4 (2012) |
| april | -22.2 (2003) | -1.6 | 3.6 | 8.8 | 23.9 (1921) |
| may | -6.7 (1948) | 3.5 | 9.4 | 15.2 | 33.0 (1992) |
| june | -2.2 (1949) | 8.2 | 14.1 | 20.0 | 32.0 (1983) |
| july | 1.1 (1948) | 11.6 | 17.3 | 23.1 | 33.7 (2013) |
| august | 0.0 (2010) | 11.1 | 17.1 | 23.0 | 34.4 (1976) |
| september | -4.4 (1949) | 7.5 | 13.3 | 19.0 | 33.9 (1945) |
| october | -10.6 (1974) | 2.7 | 7.8 | 12.9 | 28.9 (1930) |
| november | -22.8 (1875) | -2.1 | 2.4 | 6.9 | 21.7 (1956) |
| december | -34.4 (1989) | -8.3 | -3.6 | 1.2 | 16.4 (2008) |
| year | () | () |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 118 | 26 (1970) | 300 (1935) | 85 (1909) |
| february | 96 | 26 (1901) | 229 (2008) | 79 (2008) |
| march | 110 | 11 (1915) | 244 (1877) | 110 (1920) |
| april | 102 | 15 (1966) | 240 (1962) | 126 (1962) |
| may | 106 | 9 (1911) | 279 (1979) | 85 (1872) |
| june | 100 | 14 (1913) | 269 (1985) | 124 (1901) |
| july | 91 | 17 (1968) | 222 (1932) | 87 (1932) |
| august | 84 | 5 (1996) | 265 (1922) | 125 (1970) |
| september | 107 | 31 (1908) | 528 (2012) | 198 (2012) |
| october | 126 | 7 (1947) | 259 (1900) | 105 (1926) |
| november | 136 | 35 (1913) | 285 (1975) | 154 (1975) |
| december | 135 | 33 (1909) | 307 (1964) | 106 (1967) |
| 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 |