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 is Ruby's coldest month, registering average high temperatures of 59.7°F (15.4°C) and lows of 40.5°F (4.7°C).Humidity
In Ruby, the average relative humidity in December is 47%.Rainfall
In Ruby, during December, the rain falls for 6 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, there are 89.6 rainfall days, and 15.94" (405mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. December is the month with the most snowfall. Snow falls for 0.9 days and accumulates 1.18" (30mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 6min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:32 pm MST.
Sunshine
With an average of 6.9h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index in Ruby are November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 3 in December translates into this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December?
What is the snowiest month?
When does it start snowing in Ruby?
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?
What is the month with the least sunshine?
How many hours of sunshine does Ruby have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Ruby, AZ
- Average high temperature in December: 59.7°F
The warmest month (with the highest average high temperature) is June (91.6°F).
The month with the lowest average high temperature is December (59.7°F).
- Average low temperature in December: 40.5°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).
Average pressure in December
Ruby, AZ
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Ruby, AZ
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is May (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Ruby, AZ
- Average humidity in December: 47%
The month with the highest relative humidity is August (52%).
The months with the lowest relative humidity are May and June (24%).
Average rainfall in December
Ruby, AZ
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is July (4.41").
The driest month (with the least rainfall) is May (0.12").
Average rainfall days in December
Ruby, AZ
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is May (1.7 days).
Average snowfall in December
Ruby, AZ
- Average snowfall in December: 1.18"
The month with the highest snowfall is December (1.18").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Ruby, AZ
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is December (0.9 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).
Average daylight in December /
Average sunshine in December
Ruby, AZ
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 6h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in December
Ruby, AZ
- Average sunshine days in December: 24.4 days
The month with the most sunshine days is May (29 days).
The month with the least sunshine days is July (6.8 days).
Average UV index in December
Ruby, AZ
- Average UV index in December: 3
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in December
Ruby, AZ
- Average cloud cover in December: 21
The month with the most cloud cover is July (Cloud cover 24).
The month with the least cloud cover is May (Cloud cover 7).
Average visibility in December
Ruby, AZ
- 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, Arizona, USA
Weather forecast for your location
2. Allow the app to use your location