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 onset of December, Royal Oak experiences a modest temperature adjustment, with the average high-temperature receding from a frosty 45.7°F (7.6°C) in November to a cold 35.1°F (1.7°C). Royal Oak records a consistent average nighttime temperature of 26.4°F (-3.1°C) in December, slightly lower than the daytime high.Humidity
In Royal Oak, the average relative humidity in December is 81%.Rainfall
In Royal Oak, during December, the rain falls for 8.4 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 147.7 rainfall days, and 22.52" (572mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Royal Oak, in December, snow falls for 11.9 days, with typically accumulated 2.36" (60mm) of snow. In Royal Oak, during the entire year, snow falls for 53 days and aggregates up to 15.43" (392mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:43 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:09 pm EST.
Sunshine
In December, the average sunshine is 3.5h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Royal Oak have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Royal Oak, MI
- Average high temperature in December: 35.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
Royal Oak, MI
- Average pressure in December: 30.08"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Royal Oak, MI
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Royal Oak, MI
- Average humidity in December: 81%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in December
Royal Oak, MI
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (1.3").
Average rainfall days in December
Royal Oak, MI
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (6.4 days).
Average snowfall in December
Royal Oak, MI
- Average snowfall in December: 2.36"
The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Royal Oak, MI
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Royal Oak, MI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Royal Oak, MI
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Royal Oak, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Royal Oak, MI
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Royal Oak, MI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Royal Oak, Michigan, USA
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