December weather forecast
Conner, MT

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Weather in December

December, the first month of the winter in Conner, is also a subzero cold month, with an average temperature ranging between min 9.5°F (-12.5°C) and max 24.1°F (-4.4°C).

Temperature

With average high and low temperatures of 24.1°F (-4.4°C) and 9.5°F (-12.5°C) respectively, December is Conner's coldest month.

Humidity

In December, the average relative humidity in Conner is 90%.

Rainfall

In Conner, in December, it is raining for 5.2 days, with typically 1.38" (35mm) of accumulated precipitation. In Conner, during the entire year, the rain falls for 93.6 days and collects up to 15.43" (392mm) of precipitation.

Snowfall

Months with snowfall in Conner are January through December. In December, it is snowing for 16.5 days. Throughout December, 11.34" (288mm) of snow is accumulated. Throughout the year, in Conner, there are 129.3 snowfall days, and 94.92" (2411mm) of snow is accumulated.

Daylight

With an average of 8h and 42min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:58 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 8:18 am and sunset at 5:01 pm MST.

Sunshine

January and December, with an average of 5.1h of sunshine, are months with the least sunshine.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The UV index of 1 during December leads to these advisories:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What is the coldest month in Conner?

December, characterized by an average high temperature of 24.1°F (-4.4°C) and a low temperature of 9.5°F (-12.5°C), is generally the coldest month in Conner, Montana.

How cold is it in Conner in December?

The average high-temperature, in December, in Conner, is 24.1°F (-4.4°C), while the average low-temperature is 9.5°F (-12.5°C).

What is the average humidity in December in Conner?

In Conner, Montana, the average relative humidity in December is 90%.

How much does it rain in Conner in December?

In Conner, in December, during 5.2 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

How many days does it snow in December in Conner?

In December, in Conner, Montana, it is snowing for 16.5 days. Throughout December, 11.34" (288mm) of snow is accumulated.

What is the month with the shortest days in Conner?

The month with the shortest days in Conner, Montana, is December, with an average of 8h and 42min of daylight.

How many hours of daylight does Conner have in December?

In Conner, the average day length in December is 8h and 43min.

When is the sunrise / sunset in December in Conner?

On the first day of December, sunrise is at 7:58 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 8:18 am and sunset at 5:01 pm MST.

What are the months with the least sunshine in Conner?

January and December, with an average of 5.1h of sunshine, are months with the least sunshine in Conner, Montana.

How many hours of sunshine does Conner have in December?

The average sunshine duration in December in Conner, Montana, is 5.1h.

When is the lowest UV index in Conner?

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

How high is the UV index in December in Conner?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a low health risk 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
Conner, MT

Average temperature in December - Conner, MT
  • Average high temperature in December: 24.1°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is December (24.1°F).

  • Average low temperature in December: 9.5°F

The month with the highest average low temperature is August (45.3°F).
The coldest month (with the lowest average low temperature) is December (9.5°F).

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Average pressure in December
Conner, MT

Average pressure in December - Conner, MT
  • Average pressure in December: 30.22"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Conner, MT

Average wind speed in December - Conner, MT
  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is November (5.2mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in December
Conner, MT

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

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (48%).

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Average rainfall in December
Conner, MT

Average rainfall in December - Conner, MT
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is August (0.39").

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Average rainfall days in December
Conner, MT

Average rainfall days in December - Conner, MT
  • Average rainfall days in December: 5.2 days

The month with the highest number of rainy days is June (11.7 days).
The months with the least rainy days are January, August and December (5.2 days).

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Average snowfall in December
Conner, MT

Average snowfall in December - Conner, MT
  • Average snowfall in December: 11.34"

The month with the highest snowfall is February (14.8").
The month with the least snowfall is July (0.12").

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Average snowfall days in December
Conner, MT

Average snowfall days in December - Conner, MT
  • Average snowfall days in December: 16.5 days

The month with the highest number of snowfall days is March (20.3 days).
The month with the least snowfall days is July (0.2 days).

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

Average daylight in December / Average sunshine in December - Conner, MT
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

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Average sunshine days in December
Conner, MT

Average sunshine days in December - Conner, MT
  • Average sunshine days in December: 14.4 days

The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is March (8.8 days).

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Average UV index in December
Conner, MT

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

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

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Average cloud cover in December
Conner, MT

Average cloud cover in December - Conner, MT
  • Average cloud cover in December: 50

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

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Average visibility in December
Conner, MT

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

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).

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Conner, Montana, USA

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