December weather forecast
Brady, MT

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Weather in December

The first month of the winter, December, is still a freezing cold month in Brady, Montana, with an average temperature varying between 28.6°F (-1.9°C) and 16°F (-8.9°C).

Temperature

December, with its high-temperature average of 28.6°F (-1.9°C) and a low-temperature average of 16°F (-8.9°C), is the coldest month.

Humidity

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

Rainfall

In Brady, in December, it is raining for 4.5 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, in Brady, Montana, there are 104.3 rainfall days, and 11.93" (303mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Brady are January through May, September through December. In Brady, Montana, in December, snow falls for 12.6 days, with typically accumulated 3.27" (83mm) of snow. In Brady, during the entire year, snow falls for 68.2 days and aggregates up to 25.63" (651mm) of snow.

Daylight

With an average of 8h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:57 am and sunset at 4:36 pm. On the last day of December, sunrise is at 8:17 am and sunset at 4:44 pm MST.

Sunshine

The month with the least sunshine is December, with an average of 5.5h of sunshine.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Brady. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: In December, an average UV index of 2 transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Brady?

Temperature readings reach their annual highs in December, averaging 28.6°F (-1.9°C) and a minimum average of 16°F (-8.9°C).

How cold is it in Brady in December?

During December, Brady experiences an average high-temperature of 28.6°F (-1.9°C) and a low-temperature of 16°F (-8.9°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in July is estimated at 80.6°F (27°C).

What is the average humidity in December in Brady?

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

How much does it rain in Brady in December?

In Brady, in December, during 4.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

How many days does it snow in December in Brady?

In Brady, Montana, during December, snow falls for 12.6 days and regularly aggregates up to 3.27" (83mm) of snow.

What is the month with the shortest days in Brady?

December has the shortest days of the year in Brady, Montana, with an average of 8h and 24min of daylight.

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

In Brady, Montana, the average day length in December is 8h and 27min.

When are sunrise and sunset in December in Brady?

On the first day of December in Brady, Montana, sunrise is at 7:57 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 8:17 am and sunset at 4:44 pm MST.

What is the month with the least sunshine in Brady?

With an average of 5.5h of sunshine, December has the least sunshine of the year in Brady, Montana.

How many hours of sunshine does Brady have in December?

In December, the average sunshine duration is 5.5h.

What is the month with the lowest UV index in Brady?

The months with the lowest UV index in Brady, Montana, are January through March, October through December, with an average maximum UV index of 2.

How high is the UV index in December in Brady?

The average daily maximum UV index in December in Brady is 2. A UV Index reading of 2, and below, represents a low health risk 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
Brady, MT

Average temperature in December - Brady, MT
  • Average high temperature in December: 28.6°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is December (28.6°F).

  • Average low temperature in December: 16°F

The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is December (16°F).

Average pressure in December
Brady, MT

Average pressure in December - Brady, MT
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in December
Brady, MT

Average wind speed in December - Brady, MT
  • Average wind speed in December: 10.3mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

Average humidity in December
Brady, MT

Average humidity in December - Brady, 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 (40%).

Average rainfall in December
Brady, MT

Average rainfall in December - Brady, MT
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is June (2.36").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in December
Brady, MT

Average rainfall days in December - Brady, MT
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (4.2 days).

Average snowfall in December
Brady, MT

Average snowfall in December - Brady, MT
  • Average snowfall in December: 3.27"

The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Brady, MT

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

The month with the highest number of snowfall days is December (12.6 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Brady, MT
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Brady, MT

Average sunshine days in December - Brady, MT
  • Average sunshine days in December: 17 days

The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (12.2 days).

Average UV index in December
Brady, MT

Average UV index in December - Brady, 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, March, October, November and December (UV index 2).

Average cloud cover in December
Brady, MT

Average cloud cover in December - Brady, MT
  • Average cloud cover in December: 42

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 14).

Average visibility in December
Brady, MT

Average visibility in December - Brady, 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).

Brady, Montana, USA

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