What is the Climate, Average Temperature/ Weather in Seattle, Washington?
Whether you wish to travel to Seattle, Washington, Usa (Latitude & Longitude: see map search field. Altitude: 4 m or 13 ft) on holiday, business or vacation, are interested in buying property there or are looking to migrate the following Seattle, Washington climate, temperature and weather information should prove helpful:
The average temperature in Seattle, Washington, Usa is 11.5 °C (53 °F).
The average temperature range is 13.5 °C.
The highest monthly average high temperature is 24 °C (75 °F) in July & August.
The lowest monthly average low temperature is 2 °C (36 °F) in January.
Seattle, Washington's climate receives an average of 919 mm (36.2 in) of rainfall per year, or 77 mm (3.0 in) per month.
On average there are 150 days per year with more than 0.1 mm (0.004 in) of rainfall (precipitation) or 12.5 days with a quantity of rain, sleet, snow etc. per month.
The driest weather is in July when an average of 17 mm (0.7 in) of rainfall (precipitation) occurrs across 5 days.
The wettest weather is in December when an average of 145 mm (5.7 in) of rainfall (precipitation) occurrs across 19 days.
The average annual relative humidity is 70.0% and average monthly relative humidity ranges from 60% in May to 81% in December.
Average sunlight hours in Seattle, Washington range between 1.9 hours per day in December and 10.2 hours per day in July.
There are an average of 2044 hours of sunlight per year with an average of 5.6 hours of sunlight per day.
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Seattle, Washington Weather Averages
Average Minimum Temperatures in Seattle, Washington, Usa (°C)
Average Maximum Temperature in Seattle, Washington, Usa (°C)
Seattle, Washington Average Temperature (°C)
Average Sea Temp (°C)
Average Precipitation/ Rainfall (mm)
Wet Days (>0.1 mm)
Average Sunlight Hours/ Day
Relative Humidity (%)
Average Wind Speed in Seattle, Washington (Beaufort)
Average Number of Days with Frost
Weather in Seattle, Washington in January
2
8
5
-
139
19
2.0
78
2
-
Average Temperature in Seattle, Washington in January
Weather in Seattle, Washington in February
3
9
6
-
107
15
3.6
75
2
-
Average Temperature in Seattle, Washington in February
Weather in Seattle, Washington in March
4
12
8
-
90
16
5.3
69.0
3
-
Average Temperature in Seattle, Washington in March
Weather in Seattle, Washington in April
6
15
11
-
55
12
6.9
61
3
-
Average Temperature in Seattle, Washington in April
Weather in Seattle, Washington in May
9
19
14
-
40
11
7.6
60
2
-
Average Temperature in Seattle, Washington in May
Weather in Seattle, Washington in June
11
21
16
-
36
9
7.8
61
2
-
Average Temperature in Seattle, Washington in June
Weather in Seattle, Washington in July
13
24
19
-
17
5
10.2
61
2
-
Average Temperature in Seattle, Washington in July
Weather in Seattle, Washington in August
13
24
18.5
-
19
5
8.1
67
2
-
Average Temperature in Seattle, Washington in August
Weather in Seattle, Washington in September
11
21
16
-
46
8
6.5
70
2
-
Average Temperature in Seattle, Washington in September
Weather in Seattle, Washington in October
8
16
12
-
88
14
4.4
77
2
-
Average Temperature in Seattle, Washington in October
Weather in Seattle, Washington in November
5
11
8
-
137
17
2.8
80
2
-
Average Temperature in Seattle, Washington in November
Weather in Seattle, Washington in December
3
9
6
-
145
19
1.9
81
2
-
Average Temperature in Seattle, Washington in December
Seattle, Washington Climate Chart (imperial)
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Seattle, Washington Temperatures in Farenheit
Average Minimum Temperatures in Seattle, Washington, Usa (°F)
Average Maximum Temperature in Seattle, Washington, Usa (°F)
