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 brings a drop in Royal Oak's average high-temperature, falling from a frosty 45.7°F (7.6°C) in November to a wintry 35.1°F (1.7°C). Royal Oak nights in December witness a mild cool down to an average temperature of 26.4°F (-3.1°C).Humidity
The average relative humidity in December is 81%.Rainfall
In Royal Oak, in December, during 8.4 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Royal Oak, during the entire year, the rain falls for 147.7 days and collects up to 22.52" (572mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Royal Oak, Michigan. In Royal Oak, in December, during 11.9 snowfall days, 2.36" (60mm) of snow is typically accumulated. 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 in Royal Oak, Michigan, 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 in Royal Oak is 3.5h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Direct Sun exposure should be minimized especially during midday when radiation is most intense. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Royal Oak in December?
What is the average humidity in December in Royal Oak?
How much does it rain in Royal Oak in December?
How much does it snow in Royal Oak in December?
What is the month with the shortest days in Royal Oak?
How many hours of daylight does Royal Oak have in December?
When is the sunrise / sunset in December in Royal Oak?
How long on average sun shines in December in Royal Oak?
When is the lowest UV index in Royal Oak?
What is the UV index reading in December in Royal Oak?
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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