December weather forecast
Viola, ID

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Weather in December

December, the first month of the winter in Viola, is also an icy month, with an average temperature fluctuating between 34°F (1.1°C) and 24.1°F (-4.4°C).

Temperature

December, with its high-temperature average of 34°F (1.1°C) and a low-temperature average of 24.1°F (-4.4°C), is the coldest month.

Humidity

In Viola, Idaho, the average relative humidity in December is 86%.

Rainfall

December is the month with the most rainfall. Rain falls for 11.6 days and accumulates 2.68" (68mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Viola, Idaho, during December, snow falls for 14.1 days and regularly aggregates up to 11.14" (283mm) of snow. Throughout the year, there are 60.2 snowfall days, and 47.24" (1200mm) of snow is accumulated.

Daylight

With an average of 8h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:13 am and sunset at 4:01 pm. On the last day of December, sunrise is at 7:33 am and sunset at 4:09 pm PST.

Sunshine

The months with the least sunshine in Viola are January, February and December, with an average of 4.5h of sunshine.

UV index

In Viola, Idaho, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What time of the year is the coldest in Viola?

December tends to be the coldest month in Viola, with temperatures averaging a daily high of 34°F (1.1°C) and a low of 24.1°F (-4.4°C).

How cold is December in Viola?

The high-temperature in Viola, Idaho, during December is 34°F (1.1°C) and the low-temperature is 24.1°F (-4.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 82.4°F (28°C).

What is the average humidity in December in Viola?

In Viola, the average relative humidity in December is 86%.

What is the rainiest month in Viola?

December is the month with the most rainfall. Rain falls for 11.6 days and accumulates 2.68" (68mm) of precipitation.

How many days does it rain in December in Viola?

In Viola, Idaho, during December, the rain falls for 11.6 days and regularly aggregates up to 2.68" (68mm) of precipitation.

How many days does it snow in December in Viola?

In Viola, Idaho, during December, snow falls for 14.1 days and regularly aggregates up to 11.14" (283mm) of snow.

What is the month with the shortest days in Viola?

December has the shortest days of the year in Viola, Idaho, with an average of 8h and 36min of daylight.

How many hours of daylight does Viola have in December?

In Viola, the average day length in December is 8h and 37min.

What time are sunrise and sunset in December in Viola?

On the first day of December in Viola, Idaho, sunrise is at 7:13 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:09 pm PST.

What is the month with the least sunshine in Viola?

The months with the least sunshine in Viola, Idaho, are January, February and December, with an average of 4.5h of sunshine.

How many hours of sunshine does Viola have in December?

In December, the average sunshine duration in Viola is 4.5h.

How high is the UV index in December in Viola?

In Viola, Idaho, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Viola, ID

Average temperature in December - Viola, ID
  • Average high temperature in December: 34°F

The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).

  • Average low temperature in December: 24.1°F

The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).

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Average pressure in December
Viola, ID

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

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in December
Viola, ID

Average wind speed in December - Viola, ID
  • Average wind speed in December: 5.6mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

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Average humidity in December
Viola, ID

Average humidity in December - Viola, ID
  • Average humidity in December: 86%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in December
Viola, ID

Average rainfall in December - Viola, ID
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").

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Average rainfall days in December
Viola, ID

Average rainfall days in December - Viola, ID
  • Average rainfall days in December: 11.6 days

The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).

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Average snowfall in December
Viola, ID

Average snowfall in December - Viola, ID
  • Average snowfall in December: 11.14"

The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Viola, ID

Average snowfall days in December - Viola, ID
  • Average snowfall days in December: 14.1 days

The month with the highest number of snowfall days is December (14.1 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
Viola, ID

Average daylight in December / Average sunshine in December - Viola, ID
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 4h and 3min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).

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Average sunshine days in December
Viola, ID

Average sunshine days in December - Viola, ID
  • Average sunshine days in December: 11.8 days

The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).

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Average UV index in December
Viola, ID

Average UV index in December - Viola, ID
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Viola, ID

Average cloud cover in December - Viola, ID
  • Average cloud cover in December: 52

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in December
Viola, ID

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

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 and December (4mi).

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Viola, Idaho, USA

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