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 implies a gentle temperature shift, with average high-temperatures reducing from November's chilly 45.3°F (7.4°C) to a cold 34.7°F (1.5°C). Ruby observes a consistent average low-temperature of 26.2°F (-3.2°C) throughout December nights.Humidity
In Ruby, the average relative humidity in December is 82%.Rainfall
In December, the rain falls for 8 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. Throughout the year, there are 138 rainfall days, and 17.8" (452mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Ruby, in December, during 11.3 snowfall days, 1.54" (39mm) of snow is typically accumulated. In Ruby, during the entire year, snow falls for 55.4 days and aggregates up to 10.55" (268mm) of snow.Daylight
December has the shortest days of the year in Ruby, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:42 am and sunset at 4:56 pm. On the last day of December, sunrise is at 8:01 am and sunset at 5:05 pm EST.
Sunshine
In December, the average sunshine is 3.3h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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 in Ruby?
How many days 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 are sunrise and sunset in December?
How many hours of sunshine does Ruby have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Ruby, MI
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Ruby, MI
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Ruby, MI
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Ruby, MI
- Average humidity in December: 82%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in December
Ruby, MI
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in December
Ruby, MI
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Ruby, MI
- Average snowfall in December: 1.54"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ruby, MI
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ruby, MI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Ruby, MI
- Average sunshine days in December: 13.8 days
The months with the most sunshine days are October and November (15 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in December
Ruby, MI
- Average UV index in December: 1
The months with the highest UV index are 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
Ruby, MI
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Ruby, MI
- 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).
Ruby, Michigan, USA
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