WEATHER IN St. John's
Climate tables. Data for St. John's.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -28.3 (1890) | -7.7 | -4.1 | -0.5 | 15.7 (2006) |
| february | -29.4 (1875) | -8.2 | -4.5 | -0.8 | 16.0 (1996) |
| march | -25.6 (1874) | -5.8 | -2.4 | 1.1 | 19.4 (1936) |
| april | -18.3 (1882) | -2.0 | 1.8 | 5.6 | 24.1 (1986) |
| may | -6.7 (1875) | 1.5 | 6.2 | 10.9 | 27.6 (2020) |
| june | -3.3 (1970) | 5.9 | 10.8 | 15.7 | 30.6 (1915) |
| july | -1.1 (1976) | 11.2 | 16.0 | 20.8 | 32.2 (1920) |
| august | 0.0 (1892) | 12.1 | 16.4 | 20.8 | 33.9 (1876) |
| september | -1.7 (1886) | 8.5 | 12.8 | 17.0 | 29.5 (2001) |
| october | -5.6 (1881) | 4.3 | 7.8 | 11.3 | 30.6 (1932) |
| november | -14.4 (1881) | 0.1 | 3.4 | 6.8 | 19.4 (1950) |
| december | -20.0 (1879) | -4.2 | -1.1 | 2.0 | 17.9 (2017) |
| year | () | () |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 152 | 56 (1917) | 289 (1896) | 85 (1942) |
| february | 121 | 33 (1923) | 326 (1894) | 103 (1892) |
| march | 137 | 13 (1883) | 252 (2010) | 72 (2000) |
| april | 115 | 23 (1883) | 300 (1951) | 92 (1951) |
| may | 99 | 20 (1870) | 193 (1945) | 86 (1916) |
| june | 92 | 21 (1967) | 199 (1891) | 75 (1945) |
| july | 101 | 17 (1870) | 196 (1912) | 121 (1946) |
| august | 103 | 16 (1911) | 328 (1970) | 173 (1876) |
| september | 127 | 7 (1889) | 290 (1911) | 99 (2001) |
| october | 155 | 24 (1880) | 333 (1892) | 101 (1942) |
| november | 157 | 41 (1950) | 449 (1861) | 97 (2008) |
| december | 168 | 33 (1932) | 357 (1909) | 85 (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 |