Seattle - Recent January Temperatures, Rain & Snow





The numbers here describe what the January weather in Seattle, Washington was like for every year since 2010. A series of tables gives January data by year for temperature, precipitation and snowfall.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many hot or freezing days occurred each January. Then there's information on how much rain and snow actually landed this month during recent years, as well as how often Seattle had wet or snowy weather.

The climate data come from weather measurements made at Seattle—Tacoma International Airport.

Temperature Weather iconTemperature

January temperature averages by year in Seattle
High °F Low °F Year High °C Low °C
50 40 2018 10 5
44 32 2017 7 0
49 38 2016 9 4
50 40 2015 10 4
49 39 2014 10 4
43 33 2013 6 1
45 35 2012 7 2
46 37 2011 8 3
51 43 2010 11 6
Number of days in January when the temperature in Seattle dropped to 32 or below, or rose to at least 70 degrees Fahrenheit
32 °F
0 °C
Year 70 °F
21 °C
1 2018 0
15 2017 0
4 2016 0
3 2015 0
2 2014 0
16 2013 0
10 2012 0
7 2011 0
0 2010 0

Rainy Weather iconPrecipitation

This table gives the total precipitation that fell on Seattle during January in each year from 2010. The number of days with precipitation counts the days when rainfall or snowfall (when melted) amounted to 0.01 inches (0.3 millimeters) or more.

Total precipitation for January in Seattle
Days Year Inches Milli­metres
25 2018 8.1 206
11 2017 4.2 107
20 2016 7.5 189
14 2015 3.7 93
13 2014 3.7 94
17 2013 4.2 106
22 2012 6.8 173
20 2011 5.0 127
23 2010 6.2 157

Snowy Weather iconSnow

Amount of snowfall in Seattle for January and number of days when new snow totalled at least 1 inch (2.5 centimetres)
Days Year Inches Centi­metres
0 2018 0.0 0
1 2017 3.0 8
0 2016 0.0 0
0 2015 0.0 0
0 2014 0.0 0
0 2013 0.0 0
2 2012 9.6 24
1 2011 2.8 7
0 2010 0.0 0
Reference

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

Seattle - Recent Years
Seattle - Extremes
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