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 is characterized by a mild reduction in the average high-temperature, from a cool 54.5°F (12.5°C) in November to a chilly 46.4°F (8°C). In Galesville, an average temperature of 36.5°F (2.5°C) is noted during December nights.Humidity
In December, the average relative humidity is 75%.Rainfall
In Galesville, in December, during 7.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Galesville, during the entire year, the rain falls for 127.2 days and collects up to 11.85" (301mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Galesville, in December, snow falls for 1.4 days, with typically accumulated 0.16" (4mm) of snow. Throughout the year, there are 8 snowfall days, and 1.22" (31mm) of snow is accumulated.Daylight
December has the shortest days of the year in Galesville, with an average of 9h and 30min of daylight.On the first day of December in Galesville, Maryland, sunrise is at 7:06 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:54 pm EST.
Sunshine
The months with the least sunshine in Galesville, Maryland, are February and December, with an average of 5.2h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Galesville. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What are the temperatures in Galesville in December?
What is the average humidity in December in Galesville?
How many days does it rain in December in Galesville?
How many days does it snow in December in Galesville?
What is the month with the shortest days in Galesville?
How many hours of daylight does Galesville have in December?
When are sunrise and sunset in December in Galesville?
What is the month with the least sunshine in Galesville?
How many hours of sunshine does Galesville have in December?
What is the month with the lowest UV index in Galesville?
What is the UV index reading in December in Galesville?
Average temperature in December
Galesville, MD
- Average high temperature in December: 46.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Galesville, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Galesville, MD
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in December
Galesville, MD
- Average humidity in December: 75%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in December
Galesville, MD
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Galesville, MD
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is August (15.6 days).
The month with the least rainy days is November (5.9 days).
Average snowfall in December
Galesville, MD
- Average snowfall in December: 0.16"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Galesville, MD
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is January (2.6 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
Galesville, MD
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in December
Galesville, MD
- Average sunshine days in December: 21 days
The month with the most sunshine days is November (22.6 days).
The month with the least sunshine days is August (12.5 days).
Average UV index in December
Galesville, 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, February and December (UV index 2).
Average cloud cover in December
Galesville, MD
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Galesville, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Galesville, Maryland, USA
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