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 coldest temperatures occur during December, when averages reach a peak of 42.3°F (5.7°C) and a low of 32.9°F (0.5°C).Humidity
February, November and December, with an average relative humidity of 89%, are the most humid months in Clatskanie.Rainfall
In Clatskanie, during December, the rain falls for 13.6 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, in Clatskanie, there are 141.6 rainfall days, and 11.57" (294mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.04" (1mm) of snow. In Clatskanie, Oregon, during the entire year, snow falls for 4.6 days and aggregates up to 1.54" (39mm) of snow.Daylight
The month with the shortest days in Clatskanie is December, with an average of 8h and 42min of daylight.On the first day of December in Clatskanie, sunrise is at 7:35 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 4:37 pm PST.
Sunshine
The average sunshine in December in Clatskanie, Oregon, is 3.3h.UV index
The months with the lowest UV index in Clatskanie, Oregon, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What month is the coldest in Clatskanie?
How cold does it get in Clatskanie in December?
What is the most humid month in Clatskanie?
What is the average humidity in December in Clatskanie?
How many days does it rain in December in Clatskanie?
When does it start to snow in Clatskanie?
What is the month with the shortest days in Clatskanie?
How many hours of daylight does Clatskanie have in December?
When is the sunrise / sunset in December in Clatskanie?
How long on average sun shines in December in Clatskanie?
When is the lowest UV index in Clatskanie?
What is the UV index reading in December in Clatskanie?
Average temperature in December
Clatskanie, OR
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in December
Clatskanie, OR
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and December (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in December
Clatskanie, OR
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in December
Clatskanie, OR
- Average humidity in December: 89%
The months with the highest relative humidity are February, November and December (89%).
The month with the lowest relative humidity is July (75%).
Average rainfall in December
Clatskanie, OR
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is January (1.77").
The driest month (with the least rainfall) is August (0.24").
Average rainfall days in December
Clatskanie, OR
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (4.7 days).
Average snowfall in December
Clatskanie, OR
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Clatskanie, OR
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Clatskanie, OR
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in December
Clatskanie, OR
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is August (24.6 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in December
Clatskanie, OR
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Clatskanie, OR
- Average cloud cover in December: 66
The months with the most cloud cover are February and March (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in December
Clatskanie, OR
- Average visibility in December: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
Clatskanie, Oregon, USA
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