Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The advent of December brings a subtle shift in temperature, with the average high moving from a refreshing 60.4°F (15.8°C) in November to a cool 54.5°F (12.5°C). Washington's nighttime temperature during December is consistently averaged at a wintry 39.4°F (4.1°C).Humidity
August, September and December, with an average relative humidity of 80%, are the most humid months.Rainfall
In Washington, in December, during 10.9 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Washington, during the entire year, the rain falls for 169 days and collects up to 36.1" (917mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Washington, during December, snow falls for 0.3 days and regularly aggregates up to 0.24" (6mm) of snow. Throughout the year, in Washington, there are 3.5 snowfall days, and 2.52" (64mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 6:59 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:05 pm EST.
Sunshine
In December, the average sunshine is 5.4h.UV index
In December, the average daily maximum UV index in Washington is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 3 during December leads to these instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Boost your sun resistance with garments that are densely woven yet spacious. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Washington?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Washington have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Washington have in December?
What is the UV index reading in December?
Average temperature in December
Washington, NC
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (49.6°F).
- Average low temperature in December: 39.4°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).
Average pressure in December
Washington, NC
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are November and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Washington, NC
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Washington, NC
- Average humidity in December: 80%
The months with the highest relative humidity are August, September and December (80%).
The months with the lowest relative humidity are January and April (76%).
Average rainfall in December
Washington, NC
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in December
Washington, NC
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
Washington, NC
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Washington, NC
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Washington, NC
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
Washington, NC
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in December
Washington, NC
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Washington, NC
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June and October (Cloud cover 35).
Average visibility in December
Washington, NC
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
Washington, North Carolina, USA
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