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
The average high-temperature slightly decreases in December, shifting from a fresh 52.3°F (11.3°C) in November to a chilly 43.5°F (6.4°C). In the month of December, the average low-temperature usually rests at a freezing cold 31.1°F (-0.5°C).Humidity
In December, the average relative humidity in Janwood is 78%.Rainfall
In Janwood, during December, the rain falls for 10.4 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, in Janwood, there are 158.7 rainfall days, and 30.91" (785mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Janwood, during December, snow falls for 3.5 days and regularly aggregates up to 2.01" (51mm) of snow. In Janwood, Maryland, during the entire year, snow falls for 21.3 days and aggregates up to 13.31" (338mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Janwood.On the first day of the month, sunrise is at 7:09 am and sunset at 4:46 pm. On the last day of December, in Janwood, sunrise is at 7:28 am and sunset at 4:55 pm EST.
Sunshine
The average sunshine in December in Janwood is 5.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
Is December cold in Janwood?
What is the average humidity in December in Janwood?
How many days does it rain in December in Janwood?
How much does it snow in Janwood in December?
What is the month with the shortest days in Janwood?
What is the average length of the day in December in Janwood?
When are sunrise and sunset in December in Janwood?
How many hours of sunshine does Janwood have in December?
When is the lowest UV index in Janwood?
What is the UV index intensity in December in Janwood?
Average temperature in December
Janwood, MD
- Average high temperature in December: 43.5°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 (37.8°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in December
Janwood, 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
Janwood, MD
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Janwood, MD
- Average humidity in December: 78%
The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in December
Janwood, MD
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in December
Janwood, MD
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Janwood, MD
- Average snowfall in December: 2.01"
The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Janwood, MD
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Janwood, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Janwood, MD
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Janwood, 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
Janwood, MD
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Janwood, 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).
Janwood, Maryland, USA
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