December weather forecast and climate
Kalispell, MT

A gorgeous sunset over the tranquil city of Kalispell, Montana
A gorgeous sunset over the tranquil city of Kalispell, Montana

Weather in December

December, the first month of the winter, in Kalispell, is still a freezing cold month, with temperature in the range of an average high of 25.9°F (-3.4°C) and an average low of 14.7°F (-9.6°C).

Temperature

The coldest month is December, with an average high-temperature of 25.9°F (-3.4°C) and an average low-temperature of 14.7°F (-9.6°C).

Humidity

The average relative humidity in Kalispell, Montana, is 90%.

Rainfall

In Kalispell, it is raining for 10.5 days, with typically 1.65" (42mm) of accumulated precipitation. In Kalispell, during the entire year, the rain falls for 142.8 days and collects up to 17.36" (441mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In December, it is snowing for 21.5 days. Throughout December, 10.79" (274mm) of snow is accumulated. In Kalispell, during the entire year, snow falls for 104.7 days, and aggregates up to 51.34" (1304mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8.4h of daylight.

Sunshine

In Kalispell, the average sunshine is 4.1h.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
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 Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Kalispell?

With an average high-temperature of 25.9°F (-3.4°C) and an average low-temperature of 14.7°F (-9.6°C), December is the coldest month.

What is the temperature in December in Kalispell?

In December, in Kalispell, the average high-temperature is 25.9°F (-3.4°C), and the average low-temperature is 14.7°F (-9.6°C).

What is the average humidity in December in Kalispell?

The average relative humidity in December in Kalispell, Montana, is 90%.

How many days does it rain in December in Kalispell?

In Kalispell, Montana, during December, the rain falls for 10.5 days and regularly aggregates up to 1.65" (42mm) of precipitation.

How much does it snow in Kalispell in December?

In Kalispell, during December, snow falls for 21.5 days and regularly aggregates up to 10.79" (274mm) of snow.

What is the month with the shortest days in Kalispell?

December has the shortest days of the year in Kalispell, with an average of 8.4h of daylight.

How many hours of daylight does Kalispell have in December?

In December, the average length of the day is 8.4h.

How long on average sun shines in December in Kalispell?

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

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

Months with the lowest UV index in Kalispell are January, February, November and December, with an average maximum UV index of 1.

What is the UV index reading in December in Kalispell?

In Kalispell, Montana, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Kalispell, MT

Average temperature in December - Kalispell, MT
  • Average high temperature in December: 25.9°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (25.9°F).

  • Average low temperature in December: 14.7°F

The month with the highest average low temperature is August (46.4°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

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Average pressure in December
Kalispell, MT

Average pressure in December - Kalispell, MT
  • Average pressure in December: 30.15"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in December
Kalispell, MT

Average wind speed in December - Kalispell, MT
  • Average wind speed in December: 3.8mph

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in December
Kalispell, MT

Average humidity in December - Kalispell, MT
  • Average humidity in December: 90%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in December
Kalispell, MT

Average rainfall in December - Kalispell, MT
  • Average rainfall in December: 1.65"

The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is August (0.55").

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Average rainfall days in December
Kalispell, MT

Average rainfall days in December - Kalispell, MT
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is April (17.9 days).
The month with the least rainy days is August (6.6 days).

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Average snowfall in December
Kalispell, MT

Average snowfall in December - Kalispell, MT
  • Average snowfall in December: 10.79"

The month with the highest snowfall is January (11.3").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Kalispell, MT

Average snowfall days in December - Kalispell, MT
  • Average snowfall days in December: 21.5 days

The month with the highest number of snowfall days is December (21.5 days).
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
Kalispell, MT

Average daylight in December / Average sunshine in December - Kalispell, MT
  • Average daylight in December: 8.4h

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.4h).

  • Average sunshine in December: 4.1h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is January (Average sunshine: 3.7h).

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Average sunshine days in December
Kalispell, MT

Average sunshine days in December - Kalispell, MT
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (6.8 days).

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Average UV index in December
Kalispell, MT

Average UV index in December - Kalispell, MT
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in December
Kalispell, MT

Average cloud cover in December - Kalispell, MT
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 63).
Months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in December
Kalispell, MT

Average visibility in December - Kalispell, MT
  • Average visibility in December: 4mi

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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