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
With the arrival of December, Winchester-on-the-Severn experiences a modest decline in average high-temperatures, transitioning from a cool 54.5°F (12.5°C) in November to a frosty 46°F (7.8°C). Winchester-on-the-Severn, during December, witnesses an average low-temperature of 36.5°F (2.5°C).Humidity
In Winchester-on-the-Severn, Maryland, the average relative humidity in December is 75%.Rainfall
In Winchester-on-the-Severn, in December, during 7.4 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Winchester-on-the-Severn, during the entire year, the rain falls for 120.4 days and collects up to 10.47" (266mm) of precipitation.Snowfall
Months with snowfall in Winchester-on-the-Severn are January through March, November and December. In Winchester-on-the-Severn, in December, snow falls for 1.5 days, with typically accumulated 0.12" (3mm) of snow. In Winchester-on-the-Severn, during the entire year, snow falls for 8.3 days and aggregates up to 1.22" (31mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Winchester-on-the-Severn.On the first day of December, 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 4:53 pm EST.
Sunshine
In Winchester-on-the-Severn, Maryland, the average sunshine in December is 5.2h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Winchester-on-the-Severn. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
What are the temperatures in Winchester-on-the-Severn in December?
What is the average humidity in December in Winchester-on-the-Severn?
How many days does it rain in December in Winchester-on-the-Severn?
How many days does it snow in December in Winchester-on-the-Severn?
What is the month with the shortest days in Winchester-on-the-Severn?
What is the average length of the day in December in Winchester-on-the-Severn?
What time are sunrise and sunset in December in Winchester-on-the-Severn?
How many hours of sunshine does Winchester-on-the-Severn have in December?
What is the month with the lowest UV index in Winchester-on-the-Severn?
How high is the UV index in December in Winchester-on-the-Severn?
Average temperature in December
Winchester-on-the-Severn, MD
- Average high temperature in December: 46°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 (40.3°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).
Average pressure in December
Winchester-on-the-Severn, 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
Winchester-on-the-Severn, MD
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Winchester-on-the-Severn, 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, March, April and November (72%).
Average rainfall in December
Winchester-on-the-Severn, MD
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in December
Winchester-on-the-Severn, MD
- Average rainfall days in December: 7.4 days
The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).
Average snowfall in December
Winchester-on-the-Severn, MD
- Average snowfall in December: 0.12"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Winchester-on-the-Severn, MD
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.5 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
Winchester-on-the-Severn, 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: 5h and 0min).
Average sunshine days in December
Winchester-on-the-Severn, MD
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).
Average UV index in December
Winchester-on-the-Severn, 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
Winchester-on-the-Severn, MD
- Average cloud cover in December: 44
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Winchester-on-the-Severn, 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).
Winchester-on-the-Severn, Maryland, USA
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