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 December's arrival, Ruby's weather changes as the average high-temperature falls from a wintry 37.9°F (3.3°C) in November to a subzero cold 24.1°F (-4.4°C). Ruby, in the month of December, anticipates a consistent average low-temperature of 13.8°F (-10.1°C).Humidity
The average relative humidity in December in Ruby is 90%.Rainfall
In Ruby, in December, it is raining for 4.4 days, with typically 1.61" (41mm) of accumulated precipitation. In Ruby, during the entire year, the rain falls for 137.4 days and collects up to 26.26" (667mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Ruby, in December, during 16.5 snowfall days, 6.5" (165mm) of snow is typically accumulated. Throughout the year, there are 84 snowfall days, and 33.46" (850mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:23 am and sunset at 4:23 pm. On the last day of December, sunrise is at 7:42 am and sunset at 4:31 pm CST.
Sunshine
The average sunshine in December is 2.9h.UV index
The months with the lowest UV index in Ruby, Wisconsin, are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
How cold is it in Ruby in December?
What is the average humidity in December in Ruby?
How much does it rain in Ruby in December?
How many days does it snow in December in Ruby?
What is the month with the shortest days in Ruby?
How many hours of daylight does Ruby have in December?
When is the sunrise / sunset in December in Ruby?
How long on average sun shines in December in Ruby?
What are the months with the lowest UV index in Ruby?
How high is the UV index in December in Ruby?
Average temperature in December
Ruby, WI
- Average high temperature in December: 24.1°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in December: 13.8°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).
Average pressure in December
Ruby, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Ruby, WI
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Ruby, WI
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (76%).
Average rainfall in December
Ruby, WI
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Ruby, WI
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (3.7 days).
Average snowfall in December
Ruby, WI
- Average snowfall in December: 6.5"
The month with the highest snowfall is February (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ruby, WI
- Average snowfall days in December: 16.5 days
The month with the highest number of snowfall days is January (17.8 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, WI
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 48min).
Average sunshine days in December
Ruby, WI
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is October (15.6 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in December
Ruby, WI
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Ruby, WI
- Average cloud cover in December: 71
The months with the most cloud cover are January and February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Ruby, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Ruby, Wisconsin, USA
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