December weather forecast
Manzanita, OR

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Weather in December

December, the first month of the winter in Manzanita, is also a frosty month, with an average temperature varying between 46.2°F (7.9°C) and 40.1°F (4.5°C).

Temperature

The coldest period is December, when temperatures fluctuate between an average high of 46.2°F (7.9°C) and a low of 40.1°F (4.5°C).

Humidity

In December, the average relative humidity is 81%.

Rainfall

December is the month with the most rainfall. Rain falls for 14.9 days and accumulates 2.13" (54mm) of precipitation.

Snowfall

In Manzanita, snow does not fall in March through December.

Daylight

With an average of 8h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:37 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:56 am and sunset at 4:41 pm PST.

Sunshine

The average sunshine in December is 4.3h.

UV index

The months with the lowest UV index in Manzanita are February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.

Frequently asked questions

What time of the year is the coldest?

December, with its high-temperature average of 46.2°F (7.9°C) and a low-temperature average of 40.1°F (4.5°C), is the coldest month.

What is the temperature in December?

The high-temperature, in December, in Manzanita, records 46.2°F (7.9°C), while the low-temperature is 40.1°F (4.5°C).

What is the average humidity in December?

In Manzanita, the average relative humidity in December is 81%.

What is the wettest month?

December is the month with the most rainfall. Rain falls for 14.9 days and accumulates 2.13" (54mm) of precipitation.

How many days does it rain in December?

In Manzanita, during December, the rain falls for 14.9 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow?

In Manzanita, snow does not fall in March through December.

Does it snow in December?

In Manzanita, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 8h and 48min of daylight.

How many hours of daylight does Manzanita have in December?

In Manzanita, the average day length in December is 8h and 45min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:37 am and sunset at 4:33 pm. On the last day of the month, in Manzanita, sunrise is at 7:56 am and sunset at 4:41 pm PST.

How many hours of sunshine does Manzanita have in December?

In Manzanita, the average sunshine duration in December is 4.3h.

When is the lowest UV index?

February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Manzanita, OR

Average temperature in December - Manzanita, OR
  • Average high temperature in December: 46.2°F

The warmest month (with the highest average high temperature) is August (66.2°F).
The month with the lowest average high temperature is December (46.2°F).

  • Average low temperature in December: 40.1°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).

Average pressure in December
Manzanita, OR

Average pressure in December - Manzanita, OR
  • Average pressure in December: 30.07"Hg

The months with the highest atmospheric pressure are January and April (30.08"Hg).
The month with the lowest atmospheric pressure is September (30.02"Hg).

Average wind speed in December
Manzanita, OR

Average wind speed in December - Manzanita, OR
  • Average wind speed in December: 10.2mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in December
Manzanita, OR

Average humidity in December - Manzanita, OR
  • Average humidity in December: 81%

The month with the highest relative humidity is August (83%).
The month with the lowest relative humidity is May (80%).

Average rainfall in December
Manzanita, OR

Average rainfall in December - Manzanita, OR
  • Average rainfall in December: 2.13"

The wettest month (with the highest rainfall) is December (2.13").
The driest month (with the least rainfall) is August (0.2").

Average rainfall days in December
Manzanita, OR

Average rainfall days in December - Manzanita, OR
  • Average rainfall days in December: 14.9 days

The month with the highest number of rainy days is March (16.1 days).
The month with the least rainy days is August (4.4 days).

Average snowfall in December
Manzanita, OR

Average snowfall in December - Manzanita, OR
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Manzanita, OR

Average snowfall days in December - Manzanita, OR
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is February (1.1 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
Manzanita, OR

Average daylight in December / Average sunshine in December - Manzanita, OR
  • Average daylight in December: 8h and 5min

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 48min).

  • Average sunshine in December: 4h and 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 0min).

Average sunshine days in December
Manzanita, OR

Average sunshine days in December - Manzanita, OR
  • Average sunshine days in December: 13.2 days

The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (12.4 days).

Average UV index in December
Manzanita, OR

Average UV index in December - Manzanita, OR
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, November and December (UV index 2).

Average cloud cover in December
Manzanita, OR

Average cloud cover in December - Manzanita, OR
  • Average cloud cover in December: 55

The months with the most cloud cover are January and March (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in December
Manzanita, OR

Average visibility in December - Manzanita, OR
  • 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).

Manzanita, Oregon, USA

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