December weather forecast
Eastport, ID

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Weather in December

December, the first month of the winter in Eastport, is still a freezing cold month, with an average temperature ranging between min 16.3°F (-8.7°C) and max 27.3°F (-2.6°C).

Temperature

Eastport experiences its lowest temperatures in December, with an average peak of 27.3°F (-2.6°C) and a low of 16.3°F (-8.7°C).

Humidity

In December, the average relative humidity is 91%.

Rainfall

The month with the most rainfall is December, when the rain falls for 11.8 days and typically aggregates up to 2.76" (70mm) of precipitation.

Snowfall

Months with snowfall are January through April, September through December. In December, it is snowing for 17.4 days. Throughout December, 9.45" (240mm) of snow is accumulated. In Eastport, during the entire year, snow falls for 70.6 days and aggregates up to 41.77" (1061mm) of snow.

Daylight

With an average of 8h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 8:18 am and sunset at 4:49 pm. On the last day of December, sunrise is at 8:38 am and sunset at 4:57 pm MST.

Sunshine

In Eastport, the average sunshine in December is 4.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 1 in 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. Direct Sun exposure should be minimized especially during midday when radiation is most intense. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jun 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

The coldest period tends to be December, when average temperatures fluctuate between a high of 27.3°F (-2.6°C) and a low of 16.3°F (-8.7°C).

How cold is December?

Eastport in December has an average high-temperature of 27.3°F (-2.6°C) and an average low-temperature of 16.3°F (-8.7°C).

What is the average humidity in December?

In December, the average relative humidity is 91%.

What is the wettest month in Eastport?

December is the month with the most rainfall. Rain falls for 11.8 days and accumulates 2.76" (70mm) of precipitation.

How many days does it rain in December?

In Eastport, during December, the rain falls for 11.8 days and regularly aggregates up to 2.76" (70mm) of precipitation.

How much does it snow in Eastport in December?

In Eastport, Idaho, during December, snow falls for 17.4 days and regularly aggregates up to 9.45" (240mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 18min of daylight.

What is the average length of the day in December?

In Eastport, the average day length in December is 8h and 19min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 8:18 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 8:38 am and sunset at 4:57 pm MST.

How long on average sun shines in December?

In Eastport, the average sunshine duration in December is 4.1h.

What are the months 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 1.

How high is the UV index in December?

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat from unsafe 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
Eastport, ID

Average temperature in December - Eastport, ID
  • Average high temperature in December: 27.3°F

The warmest month (with the highest average high temperature) is August (76.3°F).
The month with the lowest average high temperature is December (27.3°F).

  • Average low temperature in December: 16.3°F

The month with the highest average low temperature is August (47.7°F).
The coldest months (with the lowest average low temperature) are January and December (16.3°F).

Average pressure in December
Eastport, ID

Average pressure in December - Eastport, ID
  • Average pressure in December: 30.17"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Eastport, ID

Average wind speed in December - Eastport, ID
  • Average wind speed in December: 3.5mph

The windiest month (with the highest average wind speed) is June (4.3mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).

Average humidity in December
Eastport, ID

Average humidity in December - Eastport, ID
  • Average humidity in December: 91%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (55%).

Average rainfall in December
Eastport, ID

Average rainfall in December - Eastport, ID
  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is December (2.76").
The driest month (with the least rainfall) is August (0.43").

Average rainfall days in December
Eastport, ID

Average rainfall days in December - Eastport, ID
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is April (19.7 days).
The month with the least rainy days is August (6.5 days).

Average snowfall in December
Eastport, ID

Average snowfall in December - Eastport, ID
  • Average snowfall in December: 9.45"

The month with the highest snowfall is January (11.02").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in December
Eastport, ID

Average snowfall days in December - Eastport, ID
  • Average snowfall days in December: 17.4 days

The month with the highest number of snowfall days is December (17.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Eastport, ID

Average daylight in December / Average sunshine in December - Eastport, ID
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Eastport, ID

Average sunshine days in December - Eastport, ID
  • Average sunshine days in December: 10 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is March (7.7 days).

Average UV index in December
Eastport, ID

Average UV index in December - Eastport, ID
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in December
Eastport, ID

Average cloud cover in December - Eastport, ID
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in December
Eastport, ID

Average visibility in December - Eastport, ID
  • Average visibility in December: 4mi

The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

Eastport, Idaho, USA

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