WEATHER IN Duluth
Climate tables. Data for Duluth.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -40.6 (1885) | -16.4 | -11.6 | -6.7 | 12.8 (1942) |
| february | -39.4 (1996) | -14.4 | -9.2 | -4.0 | 14.4 (1895) |
| march | -33.9 (1989) | -7.9 | -2.8 | 2.3 | 27.2 (1946) |
| april | -20.6 (1954) | -1.2 | 4.2 | 9.6 | 31.1 (1952) |
| may | -8.9 (1907) | 5.0 | 11.1 | 17.2 | 35.0 (1939) |
| june | -2.8 (1972) | 10.1 | 16.2 | 22.3 | 36.1 (1910) |
| july | 1.7 (1988) | 13.4 | 19.4 | 25.4 | 41.1 (1936) |
| august | 0.0 (1986) | 12.9 | 18.6 | 24.3 | 36.1 (1930) |
| september | -5.0 (1962) | 8.5 | 14.0 | 19.6 | 35.0 (1976) |
| october | -14.4 (1917) | 2.0 | 6.7 | 11.5 | 30.0 (1953) |
| november | -33.9 (1875) | -5.3 | -1.2 | 2.8 | 22.8 (1903) |
| december | -37.2 (1917) | -12.4 | -8.3 | -4.1 | 13.3 (1939) |
| year | -40.6 (1885) | -0.9 | 4.2 | 9.3 | 41.1 (1936) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 24 | 3 (2008) | 119 (1969) | 30 (1969) |
| february | 26 | 3 (1877) | 108 (1922) | 30 (1998) |
| march | 37 | 6 (1959) | 130 (1965) | 57 (1977) |
| april | 64 | 6 (1987) | 208 (2001) | 66 (1948) |
| may | 86 | 4 (1976) | 203 (1879) | 100 (2010) |
| june | 112 | 3 (1910) | 277 (1874) | 105 (2012) |
| july | 100 | 12 (1875) | 275 (1909) | 132 (1909) |
| august | 95 | 7 (1930) | 262 (1972) | 82 (1939) |
| september | 88 | 5 (1952) | 293 (1881) | 101 (1876) |
| october | 74 | 2 (1895) | 191 (1949) | 75 (2010) |
| november | 50 | 2 (1916) | 129 (2000) | 57 (1998) |
| december | 37 | 2 (1905) | 99 (1879) | 49 (1950) |
| year | 786 | 460 (1910) | 1150 (1879) | 132 (1909) |
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 |