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 Oak Grove, December is the month with the lowest recorded average temperatures, measuring a high of 44.4°F (6.9°C) and a low of 34.7°F (1.5°C).Humidity
In December, the average relative humidity is 83%.Rainfall
December is the month with the most rainfall in Oak Grove. Rain falls for 18.5 days and accumulates 4.57" (116mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Oak Grove, Oregon. In Oak Grove, in December, during 0.8 snowfall days, 0.39" (10mm) of snow is typically accumulated. In Oak Grove, during the entire year, snow falls for 6.5 days and aggregates up to 4.13" (105mm) of snow.Daylight
The month with the shortest days in Oak Grove is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:50 am and sunset at 4:37 pm PST.
Sunshine
In Oak Grove, the average sunshine in December is 4.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Oak Grove. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the coldest month in Oak Grove?
How cold does it get in Oak Grove in December?
What is the average humidity in December in Oak Grove?
What is the rainiest month in Oak Grove?
How many days does it rain in December in Oak Grove?
How much does it snow in Oak Grove in December?
What is the month with the shortest days in Oak Grove?
How many hours of daylight does Oak Grove have in December?
When are sunrise and sunset in December in Oak Grove?
How many hours of sunshine does Oak Grove have in December?
What is the month with the lowest UV index in Oak Grove?
What is the UV index intensity in December in Oak Grove?
Average temperature in December
Oak Grove, OR
- Average high temperature in December: 44.4°F
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure in December
Oak Grove, OR
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in December
Oak Grove, OR
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is January (6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Oak Grove, OR
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall in December
Oak Grove, OR
- Average rainfall in December: 4.57"
The wettest month (with the highest rainfall) is December (4.57").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in December
Oak Grove, OR
- Average rainfall days in December: 18.5 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in December
Oak Grove, OR
- Average snowfall in December: 0.39"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Oak Grove, OR
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Oak Grove, OR
- 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: 4h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Oak Grove, OR
- Average sunshine days in December: 10.9 days
The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in December
Oak Grove, OR
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Oak Grove, OR
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Oak Grove, OR
- Average visibility in December: 5mi
The months with the highest visibility are July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, November and December (5mi).
Oak Grove, Oregon, USA
Weather forecast for your location
2. Allow the app to use your location
