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
Arrival of December comes with a reduction in the average high-temperature, falling from a cool 51.6°F (10.9°C) in November to a cold 42.3°F (5.7°C). In Keedysville, the average low-temperature during the month of December is a subzero cold 30.2°F (-1°C).Humidity
The months with the highest humidity in Keedysville are May, October and December, with an average relative humidity of 79%.Rainfall
In December, in Keedysville, the rain falls for 10.8 days. Throughout December, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 162.4 rainfall days, and 30.16" (766mm) of precipitation is accumulated.Snowfall
Months with snowfall in Keedysville are January through April, October through December. In December, in Keedysville, it is snowing for 4.5 days. Throughout December, 2.09" (53mm) of snow is accumulated. Throughout the year, there are 24.4 snowfall days, and 14.29" (363mm) of snow is accumulated.Daylight
The month with the shortest days in Keedysville is December, with an average of 9h and 24min of daylight.On the first day of December in Keedysville, sunrise is at 7:12 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:57 pm EST.
Sunshine
In Keedysville, the average sunshine in December is 4.8h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during December leads to these advisories:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is it in Keedysville in December?
What are the most humid months in Keedysville?
What is the average humidity in December in Keedysville?
How much does it rain in Keedysville in December?
How many days does it snow in December in Keedysville?
What is the month with the shortest days in Keedysville?
How many hours of daylight does Keedysville have in December?
When is the sunrise / sunset in December in Keedysville?
How many hours of sunshine does Keedysville have in December?
What are the months with the lowest UV index in Keedysville?
What is the UV index reading in December in Keedysville?
Average temperature in December
Keedysville, MD
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Keedysville, 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
Keedysville, MD
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Keedysville, MD
- Average humidity in December: 79%
The months with the highest relative humidity are May, October and December (79%).
The month with the lowest relative humidity is July (74%).
Average rainfall in December
Keedysville, MD
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in December
Keedysville, MD
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Keedysville, MD
- Average snowfall in December: 2.09"
The month with the highest snowfall is January (4.72").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Keedysville, MD
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Keedysville, 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: 4h and 5min
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 42min).
Average sunshine days in December
Keedysville, MD
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is April (11 days).
Average UV index in December
Keedysville, 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
Keedysville, MD
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Keedysville, MD
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Keedysville, Maryland, USA
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