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
In Unity, the lowest average temperatures are observed in December, with a high of 30.7°F (-0.7°C) and a low of 18.5°F (-7.5°C).Humidity
In December, the average relative humidity is 86%.Rainfall
December is the month with the most rainfall in Unity. Rain falls for 8.6 days and accumulates 1.77" (45mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall in Unity. Snow falls for 14.7 days and accumulates 10.59" (269mm) of snow.Daylight
The month with the shortest days in Unity is December, with an average of 8h and 54min of daylight.On the first day of December, sunrise is at 7:09 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:23 pm PST.
Sunshine
In December, the average sunshine in Unity is 5.1h.UV index
In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What is the coldest time of year in Unity?
How cold is December in Unity?
What is the average humidity in December in Unity?
What is the rainiest month in Unity?
How much does it rain in Unity in December?
What is the snowiest month in Unity?
How much does it snow in Unity in December?
What is the month with the shortest days in Unity?
What is the average length of the day in December in Unity?
When is the sunrise / sunset in December in Unity?
How long on average sun shines in December in Unity?
What is the UV index reading in December in Unity?
Average temperature in December
Unity, OR
- Average high temperature in December: 30.7°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (30.7°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure in December
Unity, OR
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in December
Unity, OR
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are September and October (5.4mph).
Average humidity in December
Unity, OR
- Average humidity in December: 86%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (40%).
Average rainfall in December
Unity, OR
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in December
Unity, OR
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is August (4.4 days).
Average snowfall in December
Unity, OR
- Average snowfall in December: 10.59"
The month with the highest snowfall is December (10.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Unity, OR
- Average snowfall days in December: 14.7 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Unity, OR
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Unity, OR
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is July (22.7 days).
The months with the least sunshine days are February and March (11.3 days).
Average UV index in December
Unity, OR
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Unity, OR
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in December
Unity, OR
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Unity, Oregon, USA
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