WEATHER IN Seattle
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | 0 (1950) | 37.7 | 42.8 | 48.0 | 64 (1981) |
| february | 1 (1950) | 37.7 | 44.0 | 50.3 | 70 (1968) |
| march | 11 (1955) | 39.9 | 47.1 | 54.2 | 78 (2004) |
| april | 29 (1953) | 43.3 | 51.3 | 59.3 | 85 (1976) |
| may | 28 (1954) | 48.7 | 57.5 | 66.3 | 93 (1963) |
| june | 38 (1952) | 53.0 | 62.0 | 71.1 | 96 (1955) |
| july | 43 (1954) | 56.8 | 67.1 | 77.4 | 103 (2009) |
| august | 44 (1950) | 57.2 | 67.4 | 77.6 | 99 (1981) |
| september | 35 (1972) | 53.6 | 62.6 | 71.6 | 98 (1988) |
| october | 28 (1949) | 47.0 | 53.8 | 60.5 | 89 (1987) |
| november | 6 (1955) | 40.9 | 46.5 | 52.1 | 74 (2010) |
| december | 6 (1968) | 37.1 | 42.0 | 47.0 | 64 (1993) |
| year | 0 (1950) | 45.0 | 52.6 | 60.2 | 103 (2009) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 5.78 | 0.58 (1985) | 12.92 (1953) | 2.98 (1986) |
| february | 3.76 | 0.30 (1920) | 9.11 (1961) | 3.06 (1996) |
| march | 4.17 | 0.57 (1965) | 9.42 (2014) | 2.70 (1972) |
| april | 3.18 | 0.09 (1939) | 6.53 (1991) | 2.64 (1991) |
| may | 1.88 | 0.12 (1992) | 4.76 (1948) | 1.83 (1969) |
| june | 1.45 | 0.02 (1918) | 3.82 (1964) | 1.75 (1968) |
| july | 0.60 | 0.00 (1958) | 2.84 (1916) | 0.85 (1981) |
| august | 0.97 | 0.00 (1914) | 4.59 (1975) | 1.63 (1975) |
| september | 1.61 | 0.00 (1975) | 6.17 (2013) | 1.71 (2013) |
| october | 3.91 | 0.31 (1987) | 8.96 (2003) | 5.02 (2003) |
| november | 6.31 | 0.74 (1976) | 15.63 (2006) | 3.41 (1959) |
| december | 5.72 | 1.15 (1944) | 14.25 (1933) | 3.77 (2007) |
| year | 37.49 | 22.83 (1911) | 54.61 (1950) | 5.02 (2003) |
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 |