December weather forecast
Naples, ID

Weather in December

The first month of the winter, December, is also a subzero cold month in Naples, Idaho, with an average temperature fluctuating between 16.3°F (-8.7°C) and 27.3°F (-2.6°C).

Temperature

With an average high-temperature of 27.3°F (-2.6°C) and an average low-temperature of 16.3°F (-8.7°C), December is the coldest month.

Humidity

In December, the average relative humidity in Naples, Idaho, is 91%.

Rainfall

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

Snowfall

January through April, September through December are months with snowfall in Naples. In Naples, during December, snow falls for 17.4 days and regularly aggregates up to 9.45" (240mm) of snow. Throughout the year, there are 70.6 snowfall days, and 41.77" (1061mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 22min of daylight.
On the first day of December in Naples, sunrise is at 7:16 am and sunset at 3:52 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 3:59 pm PST.

Sunshine

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

UV index

The months with the lowest UV index in Naples, Idaho, are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Naples?

December is the coldest month in Naples, with 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 temperature in December in Naples?

In Naples, Idaho, in December, the average high-temperature is 27.3°F (-2.6°C), and the average low-temperature is 16.3°F (-8.7°C).

What is the average humidity in December in Naples?

In Naples, Idaho, the average relative humidity in December is 91%.

What is the rainiest month in Naples?

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

How many days does it rain in December in Naples?

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

How many days does it snow in December in Naples?

In Naples, 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 in Naples?

The month with the shortest days in Naples is December, with an average of 8h and 22min of daylight.

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

In December, the average day length is 8h and 22min.

When is the sunrise / sunset in December in Naples?

In December, on the first day of the month, sunrise is at 7:16 am and sunset at 3:52 pm. On the last day of the month, in Naples, Idaho, sunrise is at 7:37 am and sunset at 3:59 pm PST.

How long on average sun shines in December in Naples?

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

What are the months with the lowest UV index in Naples?

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

How high is the UV index in December in Naples?

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to 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
Naples, ID

Average temperature in December - Naples, 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).

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Average pressure in December
Naples, ID

Average pressure in December - Naples, 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).

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Average wind speed in December
Naples, ID

Average wind speed in December - Naples, 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).

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Average humidity in December
Naples, ID

Average humidity in December - Naples, 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%).

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Average rainfall in December
Naples, ID

Average rainfall in December - Naples, 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").

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Average rainfall days in December
Naples, ID

Average rainfall days in December - Naples, 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).

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Average snowfall in December
Naples, ID

Average snowfall in December - Naples, 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").

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Average snowfall days in December
Naples, ID

Average snowfall days in December - Naples, 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).

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

Average daylight in December / Average sunshine in December - Naples, ID
  • Average daylight in December: 8h and 22min

The month with the longest days is June (Average daylight: 16h and 4min).
The month with the shortest days is December (Average daylight: 8h and 22min).

  • Average sunshine in December: 4h and 6min

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).

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Average sunshine days in December
Naples, ID

Average sunshine days in December - Naples, 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).

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Average UV index in December
Naples, ID

Average UV index in December - Naples, 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).

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Average cloud cover in December
Naples, ID

Average cloud cover in December - Naples, 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).

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Average visibility in December
Naples, ID

Average visibility in December - Naples, 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).

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