December weather forecast
Oldtown, ID

Weather in December

December, the first month of the winter in Oldtown, is also a subzero cold month, with temperature in the range of an average high of 29.7°F (-1.3°C) and an average low of 19.4°F (-7°C).

Temperature

December is the coldest month, with an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 19.4°F (-7°C).

Humidity

The average relative humidity in December in Oldtown is 91%.

Rainfall

In December, the rain falls for 7 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. Throughout the year, in Oldtown, there are 125.5 rainfall days, and 19.92" (506mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. In Oldtown, in December, snow falls for 17.8 days, with typically accumulated 14.17" (360mm) of snow. Throughout the year, there are 81.4 snowfall days, and 58.11" (1476mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 26min of daylight.
On the first day of the month, sunrise is at 7:17 am and sunset at 3:56 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:03 pm PST.

Sunshine

In Oldtown, the average sunshine in December is 3.4h.

UV index

February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Oldtown. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 1 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 Oldtown?

The coldest month in Oldtown, Idaho, is December, with an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 19.4°F (-7°C).

What is the temperature in December in Oldtown?

The average high-temperature, in December, in Oldtown, is 29.7°F (-1.3°C), while the average low-temperature is 19.4°F (-7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is appraised at 82.4°F (28°C).

What is the average humidity in December in Oldtown?

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

How much does it rain in Oldtown in December?

In Oldtown, Idaho, during December, the rain falls for 7 days and regularly aggregates up to 2.52" (64mm) of precipitation.

How many days does it snow in December in Oldtown?

In December, it is snowing for 17.8 days. Throughout December, 14.17" (360mm) of snow is accumulated.

What is the month with the shortest days in Oldtown?

December has the shortest days of the year in Oldtown, with an average of 8h and 26min of daylight.

How many hours of daylight does Oldtown have in December?

In Oldtown, the average day length in December is 8h and 26min.

What time are sunrise and sunset in December in Oldtown?

On the first day of December in Oldtown, Idaho, sunrise is at 7:17 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:03 pm PST.

How long on average sun shines in December in Oldtown?

The average sunshine duration in December is 3.4h.

What is the month with the lowest UV index in Oldtown?

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

What is the UV index intensity in December in Oldtown?

In Oldtown, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health threat 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
Oldtown, ID

Average temperature in December - Oldtown, ID
  • Average high temperature in December: 29.7°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (29.7°F).

  • Average low temperature in December: 19.4°F

The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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Average pressure in December
Oldtown, ID

Average pressure in December - Oldtown, ID
  • Average pressure in December: 30.18"Hg

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

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Average wind speed in December
Oldtown, ID

Average wind speed in December - Oldtown, ID
  • Average wind speed in December: 3.4mph

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

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Average humidity in December
Oldtown, ID

Average humidity in December - Oldtown, 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 (49%).

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Average rainfall in December
Oldtown, ID

Average rainfall in December - Oldtown, ID
  • Average rainfall in December: 2.52"

The wettest month (with the highest rainfall) is January (2.64").
The driest month (with the least rainfall) is August (0.43").

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Average rainfall days in December
Oldtown, ID

Average rainfall days in December - Oldtown, ID
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is April (16.7 days).
The month with the least rainy days is August (5.8 days).

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Average snowfall in December
Oldtown, ID

Average snowfall in December - Oldtown, ID
  • Average snowfall in December: 14.17"

The month with the highest snowfall is January (16.26").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Oldtown, ID

Average snowfall days in December - Oldtown, ID
  • Average snowfall days in December: 17.8 days

The month with the highest number of snowfall days is December (17.8 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
Oldtown, ID

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

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in December
Oldtown, ID

Average sunshine days in December - Oldtown, ID
  • Average sunshine days in December: 12.3 days

The month with the most sunshine days is July (23.1 days).
The month with the least sunshine days is March (9.2 days).

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Average UV index in December
Oldtown, ID

Average UV index in December - Oldtown, 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 February, November and December (UV index 1).

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Average cloud cover in December
Oldtown, ID

Average cloud cover in December - Oldtown, ID
  • Average cloud cover in December: 65

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 14).

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Average visibility in December
Oldtown, ID

Average visibility in December - Oldtown, ID
  • Average visibility in December: 3mi

The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).

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