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Weather in January in Seattle, Washington

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< January >
 
Normal Max/ High Temperature 8°C (46°F)
 
Average Temperature 5°C (41°F)
 
Min/ Low Temperature 2°C (36°F)
 
Normal Precipitation 136mm (5.4in)
Number of Wet Days (probability of rain on a day) 19 (61%)
Average Sunlight per day 02:00
Average Daylight per day 08:53
Sunny (Cloudy) Daylight Hours 23% (77%)
Sun altitude at solar noon on the 21st day.
22.6°


  • The average temperature in Seattle, Washington in January is cool at 5.2 °C (41.36 °F).
  • Afternoons can be a little cool with average high temperatures reaching 7.8 °C (46 °F).
  • Overnight temperatures are generally very cool with an average low of 2.4 °C (36.3 °F).
  • The variation/ range of diurnal mean temperatures in January is 5.4 °C (9.7 °F).
  • The weather in January is far from dry with rain, sleet or snow from time to time. Some 135.9mm (5.4in) of water accrues during on average 19 days.
  • In January the blue above Seattle, Washington is very dim having an average of only 2:00 of intense sunshine daily.
  • The shortest day is 8:29 long and the longest day is 9:26 long with an average length of 8:53.
  • There are approximately 6:42 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
  • It is sunny approximately 23% of daylight hours and cloudy 77% of daylight hours.

Check the distance to and compare the Seattle, Washington January averages with somewhere beginning with:

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Weather Trend Graph for January in Seattle, Washington, Usa

Graph of weather in Seattle, Washington in January

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