December weather forecast
Lacomb, OR

Share

Weather in December

The first month of the winter, December, is also a frosty month in Lacomb, Oregon, with an average temperature fluctuating between 34.2°F (1.2°C) and 45.3°F (7.4°C).

Temperature

Lacomb, Oregon, witnesses the coldest weather in December, with temperatures averaging a high of 45.3°F (7.4°C) and a low of 34.2°F (1.2°C).

Humidity

The months with the highest humidity in Lacomb are January through March and December, with an average relative humidity of 86%.

Rainfall

The month with the most rainfall is December, when the rain falls for 18 days and typically aggregates up to 4.41" (112mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Lacomb, Oregon, in December, snow falls for 0.7 days, with typically accumulated 0.31" (8mm) of snow. In Lacomb, during the entire year, snow falls for 5.6 days and aggregates up to 4.09" (104mm) of snow.

Daylight

With an average of 8h and 54min of daylight, December has the shortest days of the year in Lacomb.
On the first day of December in Lacomb, sunrise is at 7:28 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 4:41 pm PST.

Sunshine

In December, the average sunshine in Lacomb is 4.3h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lacomb, Oregon. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
[Resources]

Frequently asked questions

What month is the coldest in Lacomb?

Lacomb reaches its average lowest temperatures in December, measuring 45.3°F (7.4°C) at the peak and 34.2°F (1.2°C) at the lowest.

What are December temperatures in Lacomb?

In Lacomb, 45.3°F (7.4°C) is the average high-temperature and 34.2°F (1.2°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 84.2°F (29°C).

What are the most humid months in Lacomb?

The months with the highest humidity in Lacomb, Oregon, are January through March and December, with an average relative humidity of 86%.

What is the average humidity in December in Lacomb?

The average relative humidity in December is 86%.

What is the rainiest month in Lacomb?

The month with the most rainfall in Lacomb is December, when the rain falls for 18 days and typically aggregates up to 4.41" (112mm) of precipitation.

How many days does it rain in December in Lacomb?

In Lacomb, during December, the rain falls for 18 days and regularly aggregates up to 4.41" (112mm) of precipitation.

How many days does it snow in December in Lacomb?

In Lacomb, Oregon, in December, snow falls for 0.7 days, with typically accumulated 0.31" (8mm) of snow.

What is the month with the shortest days in Lacomb?

With an average of 8h and 54min of daylight, December has the shortest days of the year in Lacomb, Oregon.

What is the average length of the day in December in Lacomb?

The average day length in December in Lacomb, Oregon, is 8h and 53min.

When are sunrise and sunset in December in Lacomb?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 4:32 pm. On the last day of the month, in Lacomb, Oregon, sunrise is at 7:47 am and sunset at 4:41 pm PST.

How long on average sun shines in December in Lacomb?

The average sunshine duration in December in Lacomb, Oregon, is 4.3h.

What is the month with the lowest UV index in Lacomb?

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

What is the UV index intensity in December in Lacomb?

In Lacomb, Oregon, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Lacomb, OR

Average temperature in December - Lacomb, OR
  • Average high temperature in December: 45.3°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.3°F).

  • Average low temperature in December: 34.2°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

[Resources]

Average pressure in December
Lacomb, OR

Average pressure in December - Lacomb, OR
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

[Resources]

Average wind speed in December
Lacomb, OR

Average wind speed in December - Lacomb, OR
  • Average wind speed in December: 5mph

The windiest months (with the highest average wind speed) are January and March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

[Resources]

Average humidity in December
Lacomb, OR

Average humidity in December - Lacomb, OR
  • Average humidity in December: 86%

The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (66%).

[Resources]

Average rainfall in December
Lacomb, OR

Average rainfall in December - Lacomb, OR
  • Average rainfall in December: 4.41"

The wettest month (with the highest rainfall) is December (4.41").
The driest month (with the least rainfall) is July (0.24").

[Resources]

Average rainfall days in December
Lacomb, OR

Average rainfall days in December - Lacomb, OR
  • Average rainfall days in December: 18 days

The month with the highest number of rainy days is March (20.1 days).
The months with the least rainy days are July and August (3.8 days).

[Resources]

Average snowfall in December
Lacomb, OR

Average snowfall in December - Lacomb, OR
  • Average snowfall in December: 0.31"

The month with the highest snowfall is February (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in December
Lacomb, OR

Average snowfall days in December - Lacomb, OR
  • Average snowfall days in December: 0.7 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Lacomb, OR

Average daylight in December / Average sunshine in December - Lacomb, 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: 4h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

[Resources]

Average sunshine days in December
Lacomb, OR

Average sunshine days in December - Lacomb, OR
  • Average sunshine days in December: 11.6 days

The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is March (9.1 days).

[Resources]

Average UV index in December
Lacomb, OR

Average UV index in December - Lacomb, 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).

[Resources]

Average cloud cover in December
Lacomb, OR

Average cloud cover in December - Lacomb, OR
  • Average cloud cover in December: 56

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 20).

[Resources]

Average visibility in December
Lacomb, OR

Average visibility in December - Lacomb, OR
  • Average visibility in December: 5mi

The months with the highest visibility are July, August and September (6mi).
The month with the lowest visibility is February (4mi).

[Resources]

Lacomb, Oregon, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location