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 month of December, characterized by an average high of 60.1°F (15.6°C) and a low of 42.8°F (6°C), is recognized as the coldest in Oro Valley.Humidity
The most humid month is December, with an average relative humidity of 46%.Rainfall
In Oro Valley, during December, the rain falls for 5.1 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 73.3 rainfall days, and 11.22" (285mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall in Oro Valley, Arizona.Daylight
December has the shortest days of the year in Oro Valley, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 7:07 am and sunset at 5:18 pm. On the last day of December, in Oro Valley, sunrise is at 7:25 am and sunset at 5:29 pm MST.
Sunshine
December has the least sunshine of the year, with an average of 6.7h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 3 in December interprets into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Oro Valley?
What is the usual temperature for Oro Valley in December?
What is the most humid month in Oro Valley?
What is the average humidity in December in Oro Valley?
How many days does it rain in December in Oro Valley?
When it does not snow in Oro Valley?
What is the month with the shortest days in Oro Valley?
How many hours of daylight does Oro Valley have in December?
When is the sunrise / sunset in December in Oro Valley?
What is the month with the least sunshine in Oro Valley?
How many hours of sunshine does Oro Valley have in December?
When is the lowest UV index in Oro Valley?
How high is the UV index in December in Oro Valley?
Average temperature in December
Oro Valley, AZ
- Average high temperature in December: 60.1°F
The warmest month (with the highest average high temperature) is June (95.5°F).
The month with the lowest average high temperature is December (60.1°F).
- Average low temperature in December: 42.8°F
The months with the highest average low temperature are July and August (76.6°F).
The coldest month (with the lowest average low temperature) is December (42.8°F).
Average pressure in December
Oro Valley, AZ
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Oro Valley, AZ
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is May (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Oro Valley, AZ
- Average humidity in December: 46%
The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is June (20%).
Average rainfall in December
Oro Valley, AZ
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is July (2.68").
The driest months (with the least rainfall) are April and May (0.24").
Average rainfall days in December
Oro Valley, AZ
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is May (2.6 days).
Average snowfall in December
Oro Valley, AZ
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Oro Valley, AZ
- Average snowfall days in December: 0 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Oro Valley, 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 4min
The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Oro Valley, AZ
- Average sunshine days in December: 25.1 days
The month with the most sunshine days is May (28.1 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Oro Valley, AZ
- Average UV index in December: 3
The month with the highest UV index is June (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Oro Valley, AZ
- Average cloud cover in December: 21
The months with the most cloud cover are July and December (Cloud cover 21).
The months with the least cloud cover are May and June (Cloud cover 8).
Average visibility in December
Oro Valley, 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).
Oro Valley, Arizona, USA
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