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
Transition into December subtly marks a drop in the average high-temperature, moderately moving from a fresh 54.5°F (12.5°C) in November to a chilly 45.7°F (7.6°C). Throughout December, an average low-temperature of 34.7°F (1.5°C) is expected.Humidity
In Walker Mill, the average relative humidity in December is 76%.Rainfall
In Walker Mill, Maryland, during December, the rain falls for 11.1 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, in Walker Mill, Maryland, there are 164.8 rainfall days, and 32.87" (835mm) of precipitation is accumulated.Snowfall
Months with snowfall in Walker Mill are January through April, November and December. In Walker Mill, in December, during 2.5 snowfall days, 1.06" (27mm) of snow is typically accumulated. In Walker Mill, Maryland, during the entire year, snow falls for 15.1 days and aggregates up to 8.5" (216mm) of snow.Daylight
December has the shortest days of the year in Walker Mill, Maryland, with an average of 9h and 30min of daylight.On the first day of December in Walker Mill, sunrise is at 7:07 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:55 pm EST.
Sunshine
In Walker Mill, the average sunshine in December is 5.2h.UV index
The months with the lowest UV index in Walker Mill are January, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. When the Sun is at its strongest around midday, find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What are December temperatures in Walker Mill?
What is the average humidity in December in Walker Mill?
How much does it rain in Walker Mill in December?
How many days does it snow in December in Walker Mill?
What is the month with the shortest days in Walker Mill?
What is the average length of the day in December in Walker Mill?
When are sunrise and sunset in December in Walker Mill?
How long on average sun shines in December in Walker Mill?
What are the months with the lowest UV index in Walker Mill?
What is the UV index reading in December in Walker Mill?
Average temperature in December
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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
Walker Mill, 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).
Walker Mill, Maryland, USA
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