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Weather in December in Washington, District Of Columbia

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< December >
 
Normal Max/ High Temperature 8°C (47°F)
 
Average Temperature 4°C (39°F)
 
Min/ Low Temperature 0°C (32°F)
Average Sea or Water Temp 5°C(41°F)
 
Normal Precipitation 79mm (3.1in)
Number of Wet Days (probability of rain on a day) 10 (32%)
Average Sunlight per day 04:38
Average Daylight per day 09:29
Sunny (Cloudy) Daylight Hours 50% (50%)
Sun altitude at solar noon on the 21st day.
27.7°


  • 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

Graph of weather in Washington, District Of Columbia in December

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