Washington weather in December (Pennsylvania, United States of America)
What weather conditions can you expect in Washington this December? Find all the essential weather information for this month in our guide.
Temperatures
Typically, December in Washington includes low temperatures and high snow/rainfall. December ushers in the winter season. You can expect daytime temperatures to reach around 6°C, while the nights will see a decline to about -3°C.
Precipitation
Washington in December usually receives high snow/rainfall, averaging around 102 mm for the month. Historically, approximately 16 days this month are expected to have snow/rain.Average sunshine
The month is characterized by fewer sunny days, with roughly 73 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Washington. May, July, August and September typically offer the most optimal weather. In contrast, January, February, March and December tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Washington climate page with graphs.
Washington, monthly averages in December
Min Temperature
-3°C
Max Temperature
6°C
Chance of Rain
53%
Precipitation
102 mm
Rainy days
16 days
Humidity
72% *
Sunshine
73 hours *
Percentage Sunshine
26% *
Where to go in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in Washington.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
