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 arrival of December corresponds with a reduction in the average high-temperature, down from November's cool 51.6°F (10.9°C) to a wintry 38.3°F (3.5°C). Oregon reports an average nighttime low-temperature of 25.3°F (-3.7°C) in December.Humidity
In Oregon, the average relative humidity in December is 76%.Rainfall
In Oregon, during December, the rain falls for 6.1 days and regularly aggregates up to 1.06" (27mm) of precipitation. In Oregon, during the entire year, the rain falls for 133.5 days and collects up to 27.28" (693mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Oregon, during December, snow falls for 4.5 days and regularly aggregates up to 1.26" (32mm) of snow. In Oregon, during the entire year, snow falls for 22.7 days and aggregates up to 8.03" (204mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:23 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:05 pm CST.
Sunshine
In Oregon, the average sunshine in December is 5.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 suggests this advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Oregon have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Oregon have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Oregon, MO
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Oregon, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Oregon, MO
- Average wind speed in December: 9.2mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in December
Oregon, MO
- Average humidity in December: 76%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Oregon, MO
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in December
Oregon, MO
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Oregon, MO
- Average snowfall in December: 1.26"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Oregon, MO
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Oregon, MO
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Oregon, MO
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in December
Oregon, MO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Oregon, MO
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Oregon, MO
- 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).
Oregon, Missouri, USA
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