December weather forecast
Ryegate, MT

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Weather in December

The first month of the winter, December, is also a subzero cold month in Ryegate, Montana, with an average temperature varying between 29.1°F (-1.6°C) and 16.5°F (-8.6°C).

Temperature

December is the month when Ryegate sees the lowest average temperatures, with a high of 29.1°F (-1.6°C) and a low of 16.5°F (-8.6°C).

Humidity

In Ryegate, the average relative humidity in December is 76%.

Rainfall

January and December are months with the least rain when the rain falls for 7.2 days and typically aggregates up to 0.51" (13mm) of rain.

Snowfall

Months with snowfall are January through May, September through December. In December, it is snowing for 11.5 days. Throughout December, 3.62" (92mm) of snow is accumulated. In Ryegate, during the entire year, snow falls for 74.3 days and aggregates up to 33.5" (851mm) of snow.

Daylight

With an average of 8h and 42min of daylight, December has the shortest days of the year in Ryegate.
On the first day of the month, sunrise is at 7:40 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:59 am and sunset at 4:40 pm MST.

Sunshine

The months with the least sunshine in Ryegate are February and December, with an average of 6.4h of sunshine.

UV index

The months with the lowest UV index in Ryegate are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.
Note: In December, the maximum UV index of 2 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. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What is the coldest month in Ryegate?

In Ryegate, December is the coldest month, with temperatures averaging a high of 29.1°F (-1.6°C) and a low of 16.5°F (-8.6°C).

How cold is December in Ryegate?

The high-temperature, in December, in Ryegate, is 29.1°F (-1.6°C), while the low-temperature averages to 16.5°F (-8.6°C).

What is the average humidity in December in Ryegate?

The average relative humidity in December in Ryegate, Montana, is 76%.

What is the driest month in Ryegate?

The months with the least rainfall are January and December Rain falls for 7.2 days and accumulates 0.51" (13mm) of rain.

How much does it rain in Ryegate in December?

In Ryegate, during December, the rain falls for 7.2 days and regularly aggregates up to 0.51" (13mm) of precipitation.

How much does it snow in Ryegate in December?

In Ryegate, during December, snow falls for 11.5 days and regularly aggregates up to 3.62" (92mm) of snow.

What is the month with the shortest days in Ryegate?

December has the shortest days of the year in Ryegate, Montana, with an average of 8h and 42min of daylight.

What is the average length of the day in December in Ryegate?

In December, the average day length is 8h and 41min.

What time are sunrise and sunset in December in Ryegate?

On the first day of December, sunrise is at 7:40 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 4:40 pm MST.

What are the months with the least sunshine in Ryegate?

February and December, with an average of 6.4h of sunshine, are months with the least sunshine in Ryegate, Montana.

How many hours of sunshine does Ryegate have in December?

In Ryegate, the average sunshine duration in December is 6.4h.

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

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Ryegate.

What is the UV index intensity in December in Ryegate?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe 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
Ryegate, MT

Average temperature in December - Ryegate, MT
  • Average high temperature in December: 29.1°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (29.1°F).

  • Average low temperature in December: 16.5°F

The months with the highest average low temperature are July and August (55°F).
The coldest month (with the lowest average low temperature) is February (16.3°F).

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Average pressure in December
Ryegate, MT

Average pressure in December - Ryegate, MT
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in December
Ryegate, MT

Average wind speed in December - Ryegate, MT
  • Average wind speed in December: 10.1mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in December
Ryegate, MT

Average humidity in December - Ryegate, MT
  • Average humidity in December: 76%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (44%).

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Average rainfall in December
Ryegate, MT

Average rainfall in December - Ryegate, MT
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is May (2.4").
The driest months (with the least rainfall) are January and December (0.51").

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Average rainfall days in December
Ryegate, MT

Average rainfall days in December - Ryegate, MT
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is December (7.2 days).

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Average snowfall in December
Ryegate, MT

Average snowfall in December - Ryegate, MT
  • Average snowfall in December: 3.62"

The month with the highest snowfall is April (6.73").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Ryegate, MT

Average snowfall days in December - Ryegate, MT
  • Average snowfall days in December: 11.5 days

The month with the highest number of snowfall days is February (14.6 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
Ryegate, MT

Average daylight in December / Average sunshine in December - Ryegate, 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: 6h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 6h and 24min).

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Average sunshine days in December
Ryegate, MT

Average sunshine days in December - Ryegate, MT
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is April (7.8 days).

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Average UV index in December
Ryegate, MT

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average cloud cover in December
Ryegate, MT

Average cloud cover in December - Ryegate, MT
  • Average cloud cover in December: 33

The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in December
Ryegate, MT

Average visibility in December - Ryegate, MT
  • Average visibility in December: 6mi

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

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Ryegate, Montana, USA

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