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
December indicates a minor shift in the average high-temperature, from November's cool 53.8°F (12.1°C) to a frosty 45.3°F (7.4°C). Glen Echo experiences an average temperature drop to a wintry 33.1°F (0.6°C) during December nights.Humidity
December is the most humid month, with an average relative humidity of 76%.Rainfall
In December, the rain falls for 9.9 days. Throughout December, 2.17" (55mm) of precipitation is accumulated. In Glen Echo, Maryland, during the entire year, the rain falls for 150.3 days and collects up to 28.66" (728mm) of precipitation.Snowfall
Months with snowfall in Glen Echo are January through April, November and December. In Glen Echo, in December, snow falls for 2 days, with typically accumulated 0.94" (24mm) of snow. In Glen Echo, during the entire year, snow falls for 13.7 days and aggregates up to 8.39" (213mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:08 am and sunset at 4:46 pm. On the last day of December, in Glen Echo, Maryland, sunrise is at 7:27 am and sunset at 4:56 pm EST.
Sunshine
January, February and December, with an average of 5h of sunshine, are months with the least sunshine in Glen Echo, Maryland.UV index
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What is the usual temperature for Glen Echo in December?
What is the most humid month in Glen Echo?
What is the average humidity in December in Glen Echo?
How much does it rain in Glen Echo in December?
How much does it snow in Glen Echo in December?
What is the month with the shortest days in Glen Echo?
How many hours of daylight does Glen Echo have in December?
When is the sunrise / sunset in December in Glen Echo?
What is the month with the least sunshine in Glen Echo?
How many hours of sunshine does Glen Echo have in December?
What are the months with the lowest UV index in Glen Echo?
What is the UV index intensity in December in Glen Echo?
Average temperature in December
Glen Echo, MD
- Average high temperature in December: 45.3°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in December
Glen Echo, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Glen Echo, MD
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Glen Echo, MD
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Glen Echo, MD
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.69").
Average rainfall days in December
Glen Echo, MD
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in December
Glen Echo, MD
- Average snowfall in December: 0.94"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Glen Echo, MD
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Glen Echo, MD
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).
Average sunshine days in December
Glen Echo, MD
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is November (20.4 days).
The months with the least sunshine days are May and July (12.3 days).
Average UV index in December
Glen Echo, MD
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in December
Glen Echo, MD
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Glen Echo, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Glen Echo, Maryland, USA
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