| < December >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Sea or Water Temp
|Number of Wet Days (probability of rain on a day)
|Average Sunlight per day
|Average Daylight per day
|Sunny (Cloudy) Daylight Hours
|Sun altitude at solar noon on the 21st day.
- The average sea tempeature is 5 °C (41 °F).
- The average temperature in Washington, District Of Columbia in December is cool at 4.1 °C (39.38 °F).
- Afternoons can be a little cool with average high temperatures reaching 8.3 °C (46.9 °F).
- Overnight temperatures are generally slightly cold with an average low of -0.2 °C (31.6 °F).
- The variation/ range of diurnal mean temperatures in December is 8.5 °C (15.3 °F).
- The weather in December is somewhat dry with sleet, rain or snow at times. Just 79.2mm (3.1in) of fluid falls across an average of 10 days.
- The skies in Washington, District Of Columbia are slightly fair with on average a modest 4:38 of splendid sunlight daily.
- The shortest day is 9:25 long and the longest day is 9:37 long with an average length of 9:29.
- There are approximately 4:40 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 49.8% of daylight hours and cloudy 50.2% of daylight hours.
Check the distance to and compare the Washington, District Of Columbia December averages with somewhere beginning with:
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Weather Trend Graph for December in Washington, District Of Columbia, Usa
Navigate to December Weather in Locations Surrounding Washington, District Of Columbia:
- York, Pa, Usa - 127.9 kms (79.5 miles) N
- Baltimore, Md, Usa - 48.8 kms (30.3 miles) NE
- Denton, Md, Usa - 90.9 kms (56.5 miles) E
- Laurel , Md, Usa - 16.9 kms (10.5 miles) N
- Dover, De, Usa - 90.9 kms (56.5 miles) E
- Cambridge, Md, Usa - 90.9 kms (56.5 miles) E
- Royal Oak, Md, Usa - 90.9 kms (56.5 miles) E
- College Park, Md, Usa - 16.8 kms (10.4 miles) NNE
- Fredericksburg National Park, Va, Usa - 94.6 kms (58.8 miles) S