December weather forecast
Emerson, OR

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Weather in December

December, the first month of the winter in Emerson, is still a cold month, with temperature in the range of an average high of 37.4°F (3°C) and an average low of 27°F (-2.8°C).

Temperature

Emerson notes the coldest temperatures in December, with a high average of 37.4°F (3°C) and a low of 27°F (-2.8°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In December, the rain falls for 12.6 days. Throughout December, 1.73" (44mm) of precipitation is accumulated. Throughout the year, there are 112.2 rainfall days, and 10.91" (277mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Emerson, in December, snow falls for 3.9 days, with typically accumulated 2.09" (53mm) of snow. Throughout the year, there are 12.6 snowfall days, and 7.6" (193mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:21 pm. On the last day of December, sunrise is at 7:44 am and sunset at 4:30 pm PST.

Sunshine

In Emerson, the average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Opt for tightly woven and loose clothing to enhance protection from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

In Emerson, December is the month with the lowest recorded average temperatures, measuring a high of 37.4°F (3°C) and a low of 27°F (-2.8°C).

How cold is December?

In Emerson, 37.4°F (3°C) is the average high-temperature and 27°F (-2.8°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 84.2°F (29°C).

What is the average humidity in December?

In Emerson, the average relative humidity in December is 83%.

How many days does it rain in December?

In Emerson, during December, the rain falls for 12.6 days and regularly aggregates up to 1.73" (44mm) of precipitation.

How much does it snow in December?

In Emerson, in December, during 3.9 snowfall days, 2.09" (53mm) of snow is typically accumulated.

What is the month with the shortest days in Emerson?

With an average of 8h and 48min of daylight, December has the shortest days of the year.

How many hours of daylight does Emerson have in December?

In December, the average day length is 8h and 46min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:24 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:30 pm PST.

How many hours of sunshine does Emerson have in December?

In Emerson, the average sunshine duration in December is 5.1h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
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
Emerson, OR

Average temperature in December - Emerson, OR
  • Average high temperature in December: 37.4°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (37.4°F).

  • Average low temperature in December: 27°F

The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is December (27°F).

Average pressure in December
Emerson, OR

Average pressure in December - Emerson, OR
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.95"Hg).

Average wind speed in December
Emerson, OR

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

The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5mph).

Average humidity in December
Emerson, OR

Average humidity in December - Emerson, OR
  • Average humidity in December: 83%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (46%).

Average rainfall in December
Emerson, OR

Average rainfall in December - Emerson, OR
  • Average rainfall in December: 1.73"

The wettest month (with the highest rainfall) is January (1.93").
The driest month (with the least rainfall) is July (0.12").

Average rainfall days in December
Emerson, OR

Average rainfall days in December - Emerson, OR
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (2.9 days).

Average snowfall in December
Emerson, OR

Average snowfall in December - Emerson, OR
  • Average snowfall in December: 2.09"

The month with the highest snowfall is February (2.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Emerson, OR

Average snowfall days in December - Emerson, OR
  • Average snowfall days in December: 3.9 days

The months with the highest number of snowfall days are February and December (3.9 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
Emerson, OR

Average daylight in December / Average sunshine in December - Emerson, 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: 5h and 1min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in December
Emerson, OR

Average sunshine days in December - Emerson, OR
  • Average sunshine days in December: 13.8 days

The month with the most sunshine days is July (27 days).
The month with the least sunshine days is February (12.3 days).

Average UV index in December
Emerson, OR

Average UV index in December - Emerson, 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
Emerson, OR

Average cloud cover in December - Emerson, OR
  • Average cloud cover in December: 46

The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).

Average visibility in December
Emerson, OR

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

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

Emerson, Oregon, USA

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