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 comes with a drop in the average high-temperature, falling from November's cool 52.9°F (11.6°C) to a chilly 43.7°F (6.5°C). Throughout the month of December, Fallston reports a steady low-temperature average of 32.2°F (0.1°C).Humidity
The average relative humidity in December in Fallston, Maryland, is 78%.Rainfall
In Fallston, in December, it is raining for 9.8 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, there are 155.7 rainfall days, and 32.64" (829mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Fallston, in December, snow falls for 3.4 days, with typically accumulated 1.38" (35mm) of snow. Throughout the year, there are 19.9 snowfall days, and 9.72" (247mm) of snow is accumulated.Daylight
The month with the shortest days in Fallston is December, with an average of 9h and 24min of daylight.On the first day of December in Fallston, sunrise is at 7:07 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:52 pm EST.
Sunshine
In Fallston, Maryland, the average sunshine in December is 5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Fallston. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Fallston?
What is the average humidity in December in Fallston?
How many days does it rain in December in Fallston?
How much does it snow in Fallston in December?
What is the month with the shortest days in Fallston?
What is the average length of the day in December in Fallston?
When are sunrise and sunset in December in Fallston?
How many hours of sunshine does Fallston have in December?
What are the months with the lowest UV index in Fallston?
How high is the UV index in December in Fallston?
Average temperature in December
Fallston, MD
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in December: 32.2°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in December
Fallston, 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
Fallston, MD
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Fallston, MD
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Fallston, MD
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is February (2.09").
Average rainfall days in December
Fallston, MD
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Fallston, MD
- Average snowfall in December: 1.38"
The month with the highest snowfall is March (2.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Fallston, MD
- Average snowfall days in December: 3.4 days
The months with the highest number of snowfall days are January and February (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Fallston, MD
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Fallston, MD
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in December
Fallston, 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, November and December (UV index 2).
Average cloud cover in December
Fallston, MD
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Fallston, 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).
Fallston, Maryland, USA
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