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
The arrival of December corresponds with a reduction in the average high-temperature, down from November's chilly 45.7°F (7.6°C) to an icy 36.3°F (2.4°C). Night temperatures during December stabilize at an average of 29.1°F (-1.6°C), closely mirroring the daytime temperatures.Humidity
In Riverside, the average relative humidity in December is 81%.Rainfall
In Riverside, in December, it is raining for 8.6 days, with typically 1.38" (35mm) of accumulated precipitation. In Riverside, Michigan, during the entire year, the rain falls for 151.6 days and collects up to 24.37" (619mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Riverside. In December, it is snowing for 12.4 days. Throughout December, 1.81" (46mm) of snow is accumulated. Throughout the year, there are 54 snowfall days, and 10.12" (257mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:55 am and sunset at 5:14 pm. On the last day of December, in Riverside, sunrise is at 8:14 am and sunset at 5:23 pm EST.
Sunshine
In December, the average sunshine is 3.3h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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 many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December in Riverside?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Riverside, MI
- Average high temperature in December: 36.3°F
The warmest months (with the highest average high temperature) are July and August (76.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in December
Riverside, MI
- Average pressure in December: 30.08"Hg
The months with the highest atmospheric pressure are January, March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Riverside, MI
- Average wind speed in December: 12.6mph
The windiest month (with the highest average wind speed) is January (13.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Riverside, MI
- Average humidity in December: 81%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Riverside, MI
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in December
Riverside, MI
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in December
Riverside, MI
- Average snowfall in December: 1.81"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Riverside, MI
- Average snowfall days in December: 12.4 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Riverside, 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 12min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in December
Riverside, MI
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is March (14.5 days).
The month with the least sunshine days is January (7.9 days).
Average UV index in December
Riverside, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Riverside, MI
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in December
Riverside, MI
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Riverside, Michigan, USA
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