WEATHER IN Watertown
Climate tables. Data for Watertown.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -40.0 (1916) | -16.1 | -11.0 | -5.9 | 18.3 (1981) |
| february | -38.9 (1905) | -14.1 | -8.7 | -3.4 | 18.9 (1958) |
| march | -32.8 (1948) | -6.9 | -1.6 | 3.7 | 27.8 (1921) |
| april | -23.3 (1926) | -0.3 | 6.0 | 12.2 | 35.0 (1980) |
| may | -8.9 (1907) | 6.9 | 13.2 | 19.4 | 41.1 (1934) |
| june | -3.9 (1897) | 13.0 | 18.9 | 24.9 | 41.7 (1931) |
| july | 1.7 (1917) | 15.6 | 21.7 | 27.8 | 43.3 (1934) |
| august | 0.0 (1965) | 14.2 | 20.3 | 26.4 | 40.6 (1934) |
| september | -12.8 (1899) | 9.2 | 15.6 | 22.0 | 40.0 (1931) |
| october | -18.9 (1925) | 1.8 | 7.6 | 13.4 | 32.8 (1951) |
| november | -28.9 (1964) | -5.9 | -0.8 | 4.3 | 25.0 (1999) |
| december | -36.1 (1917) | -12.6 | -7.9 | -3.2 | 20.6 (1939) |
| year | -40.0 (1916) | 0.2 | 6.1 | 11.9 | 43.3 (1934) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 15 | 0.0 (1898) | 64 (1975) | 32 (1939) |
| february | 17 | 0.0 (1899) | 58 (1922) | 39 (1977) |
| march | 25 | 0.0 (1910) | 100 (1977) | 43 (1940) |
| april | 52 | 0.0 (1902) | 204 (1896) | 78 (1912) |
| may | 73 | 0.0 (1910) | 225 (1892) | 181 (1931) |
| june | 98 | 8 (1950) | 289 (1991) | 81 (1953) |
| july | 78 | 7 (2007) | 263 (1963) | 86 (1905) |
| august | 73 | 0.0 (1985) | 195 (1900) | 110 (2002) |
| september | 62 | 2 (1998) | 183 (1921) | 80 (1901) |
| october | 50 | 0.0 (1952) | 206 (1971) | 95 (1971) |
| november | 17 | 0.0 (1907) | 79 (1983) | 38 (1970) |
| december | 17 | 0.0 (1894) | 61 (1968) | 34 (1953) |
| year | 555 | 275 (1976) | 1017 (1977) | 181 (1931) |
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 |