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 signifies a gentle decline in Royal Oak's average high-temperature, easing from a fresh 54.5°F (12.5°C) in November to a chilly 46.2°F (7.9°C). In the month of December, Royal Oak's average low-temperature falls to a cold 36.5°F (2.5°C).Humidity
In December, the average relative humidity in Royal Oak, Maryland, is 76%.Rainfall
In December, the rain falls for 11.2 days. Throughout December, 2.95" (75mm) of precipitation is accumulated. Throughout the year, there are 157.2 rainfall days, and 33.27" (845mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Royal Oak, Maryland. In December, in Royal Oak, it is snowing for 1.6 days. Throughout December, 0.67" (17mm) of snow is accumulated. Throughout the year, there are 9.8 snowfall days, and 3.82" (97mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Royal Oak.On the first day of the month, sunrise is at 7:04 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:53 pm EST.
Sunshine
February and December, with an average of 5.2h of sunshine, are months with the least sunshine.UV index
January 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 minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What are December temperatures in Royal Oak?
What is the average humidity in December in Royal Oak?
How much does it rain in Royal Oak in December?
How many days does it snow in December in Royal Oak?
What is the month with the shortest days in Royal Oak?
What is the average length of the day in December in Royal Oak?
When are sunrise and sunset in December in Royal Oak?
What are the months with the least sunshine in Royal Oak?
How many hours of sunshine does Royal Oak have in December?
What is the month with the lowest UV index in Royal Oak?
What is the UV index reading in December in Royal Oak?
Average temperature in December
Royal Oak, MD
- Average high temperature in December: 46.2°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Royal Oak, 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
Royal Oak, MD
- Average wind speed in December: 9.2mph
The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Royal Oak, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in December
Royal Oak, MD
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in December
Royal Oak, MD
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is May (17.2 days).
The months with the least rainy days are January and November (8.8 days).
Average snowfall in December
Royal Oak, MD
- Average snowfall in December: 0.67"
The month with the highest snowfall is March (1.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Royal Oak, MD
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is January (3.2 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
Royal Oak, 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: 10h and 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in December
Royal Oak, MD
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and August (11.8 days).
Average UV index in December
Royal Oak, 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 and December (UV index 2).
Average cloud cover in December
Royal Oak, MD
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Royal Oak, 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).
Royal Oak, Maryland, USA
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