December weather forecast
Saint Maries, ID

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Weather in December

December seals the year in Saint Maries with firm footsteps into winter. The temperature continues its journey downward, reaching 31.8°F (-0.1°C), adding further to the seasonal chill. With snowfall spiraling to 13.39" (340mm) from November’s 4.96" (126mm), the city experiences most days of the month under a blanket of snow. The days get shorter making evenings linger longer, aiding in creating a festive ambiance suitable for the holiday season. While it brings the coldest days, December surely paints Saint Maries beautifully white, completing another annual weather cycle.

Temperature

In Saint Maries, the lowest average temperatures are observed in December, with a high of 31.8°F (-0.1°C) and a low of 21.2°F (-6°C).

Humidity

In December, the average relative humidity is 90%.

Rainfall

In Saint Maries, during December, the rain falls for 10.7 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Saint Maries, during the entire year, the rain falls for 145.2 days and collects up to 25.12" (638mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In Saint Maries, during December, snow falls for 16.3 days and regularly aggregates up to 13.39" (340mm) of snow. Throughout the year, in Saint Maries, there are 70.2 snowfall days, and 59.69" (1516mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 7:13 am and sunset at 3:57 pm. On the last day of December, sunrise is at 7:33 am and sunset at 4:06 pm PST.

Sunshine

The months with the least sunshine in Saint Maries are February and December, with an average of 3.5h of sunshine.

UV index

The months with the lowest UV index in Saint Maries 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 unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 1 during December leads to these instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To guard against the harmful effects of the Sun, minimize exposure during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What time of the year is the coldest in Saint Maries?

December stands out as Saint Maries's coldest month, with temperatures ranging between an average high of 31.8°F (-0.1°C) and a low of 21.2°F (-6°C).

How cold is it in Saint Maries in December?

Saint Maries in December has an average high-temperature of 31.8°F (-0.1°C) and an average low-temperature of 21.2°F (-6°C).

What is the average humidity in December in Saint Maries?

In Saint Maries, Idaho, the average relative humidity in December is 90%.

How many days does it rain in December in Saint Maries?

In Saint Maries, in December, it is raining for 10.7 days, with typically 3.27" (83mm) of accumulated precipitation.

How many days does it snow in December in Saint Maries?

In Saint Maries, Idaho, in December, snow falls for 16.3 days, with typically accumulated 13.39" (340mm) of snow.

What is the month with the shortest days in Saint Maries?

December has the shortest days of the year in Saint Maries, Idaho, with an average of 8h and 30min of daylight.

How many hours of daylight does Saint Maries have in December?

In Saint Maries, Idaho, the average day length in December is 8h and 33min.

When is the sunrise / sunset in December in Saint Maries?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 3:57 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:06 pm PST.

What is the month with the least sunshine in Saint Maries?

February and December, with an average of 3.5h of sunshine, are months with the least sunshine in Saint Maries.

How long on average sun shines in December in Saint Maries?

In Saint Maries, Idaho, the average sunshine duration in December is 3.5h.

What is the month with the lowest UV index in Saint Maries?

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

How high is the UV index in December in Saint Maries?

In December, the average daily maximum UV index in Saint Maries, Idaho, 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
Saint Maries, ID

Average temperature in December - Saint Maries, ID
  • Average high temperature in December: 31.8°F

The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (31.8°F).

  • Average low temperature in December: 21.2°F

The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

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Average pressure in December
Saint Maries, ID

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

The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

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Average wind speed in December
Saint Maries, ID

Average wind speed in December - Saint Maries, ID
  • Average wind speed in December: 4.1mph

The windiest month (with the highest average wind speed) is April (5mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).

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Average humidity in December
Saint Maries, ID

Average humidity in December - Saint Maries, ID
  • Average humidity in December: 90%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in December
Saint Maries, ID

Average rainfall in December - Saint Maries, ID
  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is January (3.66").
The driest month (with the least rainfall) is July (0.35").

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Average rainfall days in December
Saint Maries, ID

Average rainfall days in December - Saint Maries, ID
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is April (18.7 days).
The month with the least rainy days is July (4.9 days).

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Average snowfall in December
Saint Maries, ID

Average snowfall in December - Saint Maries, ID
  • Average snowfall in December: 13.39"

The month with the highest snowfall is January (16.22").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Saint Maries, ID

Average snowfall days in December - Saint Maries, ID
  • Average snowfall days in December: 16.3 days

The month with the highest number of snowfall days is December (16.3 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
Saint Maries, ID

Average daylight in December / Average sunshine in December - Saint Maries, 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 3min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 3h and 30min).

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Average sunshine days in December
Saint Maries, ID

Average sunshine days in December - Saint Maries, ID
  • Average sunshine days in December: 9.7 days

The month with the most sunshine days is July (25.2 days).
The month with the least sunshine days is March (7.5 days).

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Average UV index in December
Saint Maries, ID

Average UV index in December - Saint Maries, 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
Saint Maries, ID

Average cloud cover in December - Saint Maries, ID
  • Average cloud cover in December: 63

The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in December
Saint Maries, ID

Average visibility in December - Saint Maries, ID
  • Average visibility in December: 4mi

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

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Saint Maries, Idaho, USA

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