December weather forecast
Plummer, ID

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Weather in December

December, the first month of the winter in Plummer, is also a wintry month, with an average temperature ranging between max 32.2°F (0.1°C) and min 22.1°F (-5.5°C).

Temperature

December, on average, is the coldest month, registering a high temperature of 32.2°F (0.1°C) and a low of 22.1°F (-5.5°C).

Humidity

The average relative humidity in December in Plummer is 89%.

Rainfall

In Plummer, in December, during 10.6 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In Plummer, Idaho, during the entire year, the rain falls for 148.8 days and collects up to 23.86" (606mm) of precipitation.

Snowfall

Months with snowfall in Plummer are January through May, September through December. In December, in Plummer, it is snowing for 16.6 days. Throughout December, 12.17" (309mm) of snow is accumulated. Throughout the year, in Plummer, Idaho, there are 67.9 snowfall days, and 53.5" (1359mm) of snow is accumulated.

Daylight

With an average of 8h and 30min of daylight, December has the shortest days of the year in Plummer.
On the first day of the month, sunrise is at 7:14 am and sunset at 3:59 pm. On the last day of December, sunrise is at 7:34 am and sunset at 4:07 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 3.4h of sunshine.

UV index

The months with the lowest UV index in Plummer are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

What time of the year is the coldest in Plummer?

Temperature readings in Plummer reach their annual highs in December, averaging 32.2°F (0.1°C) and a minimum average of 22.1°F (-5.5°C).

How cold is December in Plummer?

Plummer in December has an average high-temperature of 32.2°F (0.1°C) and an average low-temperature of 22.1°F (-5.5°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is appraised at 82.4°F (28°C).

What is the average humidity in December in Plummer?

In Plummer, the average relative humidity in December is 89%.

How many days does it rain in December in Plummer?

In Plummer, during December, the rain falls for 10.6 days and regularly aggregates up to 3.11" (79mm) of precipitation.

How much does it snow in Plummer in December?

In Plummer, Idaho, in December, snow falls for 16.6 days, with typically accumulated 12.17" (309mm) of snow.

What is the month with the shortest days in Plummer?

The month with the shortest days in Plummer, Idaho, is December, with an average of 8h and 30min of daylight.

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

In December, the average day length in Plummer is 8h and 32min.

What time are sunrise and sunset in December in Plummer?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 3:59 pm. On the last day of the month, in Plummer, sunrise is at 7:34 am and sunset at 4:07 pm PST.

What is the month with the least sunshine in Plummer?

With an average of 3.4h of sunshine, December has the least sunshine of the year in Plummer, Idaho.

How many hours of sunshine does Plummer have in December?

The average sunshine duration in December in Plummer is 3.4h.

When is the lowest UV index in Plummer?

The months with the lowest UV index in Plummer, Idaho, are January, February, November and December, with an average maximum UV index of 1.

How high is the UV index in December in Plummer?

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Plummer, ID

Average temperature in December - Plummer, ID
  • Average high temperature in December: 32.2°F

The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is December (32.2°F).

  • Average low temperature in December: 22.1°F

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).

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Average pressure in December
Plummer, ID

Average pressure in December - Plummer, 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 August (29.91"Hg).

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Average wind speed in December
Plummer, ID

Average wind speed in December - Plummer, ID
  • Average wind speed in December: 4.3mph

The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest months (with the lowest average wind speed) are August, September and December (4.3mph).

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Average humidity in December
Plummer, ID

Average humidity in December - Plummer, ID
  • Average humidity in December: 89%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in December
Plummer, ID

Average rainfall in December - Plummer, ID
  • Average rainfall in December: 3.11"

The wettest month (with the highest rainfall) is January (3.39").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in December
Plummer, ID

Average rainfall days in December - Plummer, ID
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is March (18.6 days).
The month with the least rainy days is August (5.6 days).

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Average snowfall in December
Plummer, ID

Average snowfall in December - Plummer, ID
  • Average snowfall in December: 12.17"

The month with the highest snowfall is January (15.2").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Plummer, ID

Average snowfall days in December - Plummer, ID
  • Average snowfall days in December: 16.6 days

The month with the highest number of snowfall days is December (16.6 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Plummer, ID
  • Average daylight in December: 8h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

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Average sunshine days in December
Plummer, ID

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

The month with the most sunshine days is July (22.8 days).
The month with the least sunshine days is February (7.6 days).

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Average UV index in December
Plummer, ID

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

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 1).

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Average cloud cover in December
Plummer, ID

Average cloud cover in December - Plummer, ID
  • Average cloud cover in December: 63

The months with the most cloud cover are January and December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in December
Plummer, ID

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

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Plummer, Idaho, USA

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