December weather forecast
Lima, MT

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Weather in December

The first month of the winter, December, is also a subzero cold month in Lima, Montana, with an average temperature varying between 24.3°F (-4.3°C) and 9.9°F (-12.3°C).

Temperature

Lima experiences its lowest temperatures in December, with an average peak of 24.3°F (-4.3°C) and a low of 9.9°F (-12.3°C).

Humidity

In December, the average relative humidity in Lima, Montana, is 85%.

Rainfall

In Lima, during December, the rain falls for 5.8 days and regularly aggregates up to 0.47" (12mm) of precipitation. In Lima, Montana, during the entire year, the rain falls for 103.2 days and collects up to 9.84" (250mm) of precipitation.

Snowfall

Months with snowfall in Lima are January through June, September through December. In Lima, in December, during 12.6 snowfall days, 3.74" (95mm) of snow is typically accumulated. Throughout the year, in Lima, there are 81.9 snowfall days, and 31.65" (804mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 7:47 am and sunset at 4:51 pm. On the last day of December, in Lima, sunrise is at 8:07 am and sunset at 5:00 pm MST.

Sunshine

In Lima, the average sunshine in December is 6h.

UV index

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 2 during December translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What part of the year is the coldest in Lima?

December is the coldest month in Lima, Montana, with the temperature often reaching an average high of 24.3°F (-4.3°C) and an average low of 9.9°F (-12.3°C).

How cold is it in Lima in December?

During December, Lima experiences an average high-temperature of 24.3°F (-4.3°C) and a low-temperature of 9.9°F (-12.3°C).

What is the average humidity in December in Lima?

The average relative humidity in December is 85%.

How much does it rain in Lima in December?

In December, the rain falls for 5.8 days. Throughout December, 0.47" (12mm) of precipitation is accumulated.

How much does it snow in Lima in December?

In Lima, Montana, in December, during 12.6 snowfall days, 3.74" (95mm) of snow is typically accumulated.

What is the month with the shortest days in Lima?

December has the shortest days of the year in Lima, Montana, with an average of 8h and 54min of daylight.

How many hours of daylight does Lima have in December?

The average day length in December in Lima is 8h and 53min.

When are sunrise and sunset in December in Lima?

On the first day of December in Lima, sunrise is at 7:47 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 5:00 pm MST.

How many hours of sunshine does Lima have in December?

The average sunshine duration in December in Lima, Montana, is 6h.

What is the UV index intensity in December in Lima?

The average daily maximum UV index in December in Lima, Montana, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Lima, MT

Average temperature in December - Lima, MT
  • Average high temperature in December: 24.3°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is December (24.3°F).

  • Average low temperature in December: 9.9°F

The month with the highest average low temperature is July (47.1°F).
The coldest month (with the lowest average low temperature) is December (9.9°F).

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Average pressure in December
Lima, MT

Average pressure in December - Lima, MT
  • Average pressure in December: 30.24"Hg

The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Lima, MT

Average wind speed in December - Lima, MT
  • Average wind speed in December: 7.3mph

The windiest months (with the highest average wind speed) are November and December (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in December
Lima, MT

Average humidity in December - Lima, MT
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are July and August (43%).

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Average rainfall in December
Lima, MT

Average rainfall in December - Lima, MT
  • Average rainfall in December: 0.47"

The wettest month (with the highest rainfall) is June (1.73").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in December
Lima, MT

Average rainfall days in December - Lima, MT
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is January (4.6 days).

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Average snowfall in December
Lima, MT

Average snowfall in December - Lima, MT
  • Average snowfall in December: 3.74"

The month with the highest snowfall is April (4.96").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Lima, MT

Average snowfall days in December - Lima, MT
  • Average snowfall days in December: 12.6 days

The month with the highest number of snowfall days is February (13.3 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in December /
Average sunshine in December
Lima, MT

Average daylight in December / Average sunshine in December - Lima, MT
  • Average daylight in December: 8h and 5min

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

  • Average sunshine in December: 6h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

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Average sunshine days in December
Lima, MT

Average sunshine days in December - Lima, MT
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is July (20.7 days).
The month with the least sunshine days is April (10.7 days).

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Average UV index in December
Lima, MT

Average UV index in December - Lima, MT
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Lima, MT

Average cloud cover in December - Lima, MT
  • Average cloud cover in December: 43

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 13).

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Average visibility in December
Lima, MT

Average visibility in December - Lima, MT
  • Average visibility in December: 5mi

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

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Lima, Montana, USA

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