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 brings a minor shift in the average high-temperature, adjusting from a cool 54.5°F (12.5°C) in November to a frosty 45.7°F (7.6°C). The average nighttime temperature in Forestville lowers to an icy 34.7°F (1.5°C) throughout December.Humidity
The average relative humidity in December is 76%.Rainfall
In Forestville, during December, the rain falls for 11.1 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 164.8 rainfall days, and 32.87" (835mm) of precipitation is accumulated.Snowfall
Months with snowfall in Forestville, Maryland, are January through April, November and December. In December, it is snowing for 2.5 days. Throughout December, 1.06" (27mm) of snow is accumulated. Throughout the year, there are 15.1 snowfall days, and 8.5" (216mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December in Forestville, sunrise is at 7:07 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:55 pm EST.
Sunshine
In Forestville, the average sunshine in December is 5.2h.UV index
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Forestville, Maryland. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. When the Sun is at its strongest around midday, find shade and limit exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What are the temperatures in Forestville in December?
What is the average humidity in December in Forestville?
How many days does it rain in December in Forestville?
How many days does it snow in December in Forestville?
What is the month with the shortest days in Forestville?
How many hours of daylight does Forestville have in December?
When are sunrise and sunset in December in Forestville?
How long on average sun shines in December in Forestville?
What are the months with the lowest UV index in Forestville?
What is the UV index intensity in December in Forestville?
Average temperature in December
Forestville, MD
- Average high temperature in December: 45.7°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in December
Forestville, 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 (29.94"Hg).
Average wind speed in December
Forestville, MD
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in December
Forestville, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are January, March and April (72%).
Average rainfall in December
Forestville, MD
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in December
Forestville, MD
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in December
Forestville, MD
- Average snowfall in December: 1.06"
The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Forestville, MD
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (4.6 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
Forestville, 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: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in December
Forestville, MD
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Forestville, 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
Forestville, MD
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Forestville, 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).
Forestville, Maryland, USA
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