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Get the monthly weather forecast for Seattle, WA, including daily high/low, historical averages, to help you plan ahead.
Check accurate weather in October in Seattle (WA). Expect Seattle October temperature around 16°C (60°F). Read clothing tips & recommended activities.
October Weather in Seattle Washington, United States. Daily high temperatures decrease by 10°F, from 66°F to 56°F, rarely falling below 50°F or exceeding 74°F. Daily low temperatures decrease by 6°F, from 51°F to 45°F, rarely falling below 37°F or exceeding 57°F.
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- Rain
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- Humidity
Nearly every October day warms to over 50 degrees Fahrenheit (10 degrees Celsius) in Seattle. The city averages 2 days this month when the thermometer reaches into the 70s °F (over 21 °C). A temperature of 80 °F (27 °C) or above occurs just once a decade during October. The thermometer dips to 40 °F (4 °C) or below on an average of 3 nights. But mo...
Half the time, Seattle receives 2.5 to 5.1 inches (63 to 130 mm) of rainfall in October. One in four years has drier weather, while another one in four is wetter. None of the precipitation normally falls as snow.
The sun's rays reach the ground in Seattle during 37 percent of daylight hours on average in October, for a total of 124 hours in the month. Typically on 5 days this month the sky is mainly clear, with at most 30 percent cloud cover. Sunlight in October at Seattle lasts for 10 hours and 49 minutes a day on average. The longest day of the month is t...
The relative humidity in Seattle during October usually peaks at 87 percent in the morning then drops to 67 percent by late afternoon.
Detailed ⚡ Seattle Weather Forecast for October 2021 – day/night 🌡️ temperatures, precipitations – World-Weather.info.
Weather.com brings you the most accurate monthly weather forecast for Seattle, WA with average/record and high/low temperatures, precipitation and more.
Feb 14, 2024 · Seattle's average low-temperature in the month of October is recorded at a frosty 45.3°F (7.4°C). Humidity. The average relative humidity in October in Seattle is 79%. Rainfall. In October, the rain falls for 7.2 days. Throughout October, 0.51" (13mm) of precipitation is accumulated.
