December weather forecast
Apgar, MT

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Weather in December

The first month of the winter, December, is also a subzero cold month in Apgar, Montana, with temperature in the range of an average high of 25.7°F (-3.5°C) and an average low of 13.8°F (-10.1°C).

Temperature

December proves to be the coldest month, recording an average maximum temperature of 25.7°F (-3.5°C) and a minimum temperature of 13.8°F (-10.1°C).

Humidity

In December, the average relative humidity in Apgar is 91%.

Rainfall

In Apgar, in December, it is raining for 8.9 days, with typically 1.02" (26mm) of accumulated precipitation. In Apgar, during the entire year, the rain falls for 126.4 days and collects up to 11.22" (285mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In December, it is snowing for 19.1 days. Throughout December, 6.77" (172mm) of snow is accumulated. Throughout the year, there are 97 snowfall days, and 33.86" (860mm) of snow is accumulated.

Daylight

The month with the shortest days in Apgar is December, with an average of 8h and 24min of daylight.
On the first day of December in Apgar, sunrise is at 8:07 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 8:27 am and sunset at 4:50 pm MST.

Sunshine

In Apgar, Montana, the average sunshine in December is 4h.

UV index

The months with the lowest UV index in Apgar are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 1 translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Apgar?

December, marked by an average high-temperature of 25.7°F (-3.5°C) and a low-temperature of 13.8°F (-10.1°C), is the coldest month in Apgar, Montana.

How cold is it in Apgar in December?

During December, Apgar experiences an average high-temperature of 25.7°F (-3.5°C) and a low-temperature of 13.8°F (-10.1°C).

What is the average humidity in December in Apgar?

In Apgar, the average relative humidity in December is 91%.

How many days does it rain in December in Apgar?

In Apgar, during December, the rain falls for 8.9 days and regularly aggregates up to 1.02" (26mm) of precipitation.

How much does it snow in Apgar in December?

In Apgar, during December, snow falls for 19.1 days and regularly aggregates up to 6.77" (172mm) of snow.

What is the month with the shortest days in Apgar?

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

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

The average day length in December in Apgar, Montana, is 8h and 23min.

When are sunrise and sunset in December in Apgar?

In December, on the first day of the month, sunrise is at 8:07 am and sunset at 4:42 pm. On the last day of the month, in Apgar, Montana, sunrise is at 8:27 am and sunset at 4:50 pm MST.

How long on average sun shines in December in Apgar?

In December, the average sunshine duration in Apgar, Montana, is 4h.

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

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

What is the UV index intensity in December in Apgar?

The average daily maximum UV index in December in Apgar, Montana, is 1. A UV Index of 2, and less, symbolizes a low health threat 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
Apgar, MT

Average temperature in December - Apgar, MT
  • Average high temperature in December: 25.7°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in December: 13.8°F

The month with the highest average low temperature is August (45.5°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).

Average pressure in December
Apgar, MT

Average pressure in December - Apgar, MT
  • Average pressure in December: 30.15"Hg

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

Average wind speed in December
Apgar, MT

Average wind speed in December - Apgar, MT
  • Average wind speed in December: 3.7mph

The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are August and December (3.7mph).

Average humidity in December
Apgar, MT

Average humidity in December - Apgar, MT
  • Average humidity in December: 91%

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

Average rainfall in December
Apgar, MT

Average rainfall in December - Apgar, MT
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is June (1.42").
The driest month (with the least rainfall) is August (0.43").

Average rainfall days in December
Apgar, MT

Average rainfall days in December - Apgar, MT
  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is August (6.3 days).

Average snowfall in December
Apgar, MT

Average snowfall in December - Apgar, MT
  • Average snowfall in December: 6.77"

The month with the highest snowfall is January (7.72").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Apgar, MT

Average snowfall days in December - Apgar, MT
  • Average snowfall days in December: 19.1 days

The month with the highest number of snowfall days is December (19.1 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 4h 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: 3h and 30min).

Average sunshine days in December
Apgar, MT

Average sunshine days in December - Apgar, MT
  • Average sunshine days in December: 11.8 days

The month with the most sunshine days is July (21.5 days).
The month with the least sunshine days is March (7.7 days).

Average UV index in December
Apgar, MT

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in December
Apgar, MT

Average cloud cover in December - Apgar, MT
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 15).

Average visibility in December
Apgar, MT

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

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

Apgar, Montana, USA

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