December weather forecast
Moore, MT

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Weather in December

The first month of the winter, December, is still a freezing cold month in Moore, Montana, with an average temperature ranging between min 16°F (-8.9°C) and max 29.1°F (-1.6°C).

Temperature

Lowest temperatures are observed in February and December, averaging a high-temperature of 29.1°F (-1.6°C).

Humidity

In Moore, the average relative humidity in December is 77%.

Rainfall

The month with the least rainfall in Moore is December, when the rain falls for 6 days and typically collects 0.71" (18mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Moore, during December, snow falls for 13.5 days and regularly aggregates up to 4.88" (124mm) of snow. Throughout the year, there are 83.4 snowfall days, and 45.51" (1156mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Moore, with an average of 8h and 36min of daylight.
On the first day of the month, sunrise is at 7:44 am and sunset at 4:31 pm. On the last day of December, in Moore, sunrise is at 8:04 am and sunset at 4:39 pm MST.

Sunshine

The average sunshine in December in Moore, Montana, is 5.6h.

UV index

The months with the lowest UV index in Moore are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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 Moore?

Moore experiences lowest temperatures, averaging a high-temperature of 29.1°F (-1.6°C) during February and December.

How cold is December in Moore?

Moore in December has an average high-temperature of 29.1°F (-1.6°C) and an average low-temperature of 16°F (-8.9°C).

What is the average humidity in December in Moore?

In December, the average relative humidity in Moore is 77%.

What is the driest month in Moore?

The month with the least rainfall in Moore is December, when the rain falls for 6 days and typically collects 0.71" (18mm) of precipitation.

How many days does it rain in December in Moore?

In December, in Moore, Montana, the rain falls for 6 days. Throughout December, 0.71" (18mm) of precipitation is accumulated.

How much does it snow in Moore in December?

In Moore, Montana, in December, snow falls for 13.5 days, with typically accumulated 4.88" (124mm) of snow.

What is the month with the shortest days in Moore?

December has the shortest days of the year in Moore, with an average of 8h and 36min of daylight.

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

The average day length in December in Moore is 8h and 35min.

What time are sunrise and sunset in December in Moore?

On the first day of December in Moore, Montana, sunrise is at 7:44 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 4:39 pm MST.

How long on average sun shines in December in Moore?

In Moore, Montana, the average sunshine duration in December is 5.6h.

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

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2.

How high is the UV index in December in Moore?

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

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

The warmest month (with the highest average high temperature) is July (78.8°F).
The months with the lowest average high temperature are February and December (29.1°F).

  • Average low temperature in December: 16°F

The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).

Average pressure in December
Moore, MT

Average pressure in December - Moore, 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 (29.85"Hg).

Average wind speed in December
Moore, MT

Average wind speed in December - Moore, MT
  • Average wind speed in December: 9.5mph

The windiest months (with the highest average wind speed) are January, April and October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).

Average humidity in December
Moore, MT

Average humidity in December - Moore, MT
  • Average humidity in December: 77%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (47%).

Average rainfall in December
Moore, MT

Average rainfall in December - Moore, MT
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in December
Moore, MT

Average rainfall days in December - Moore, MT
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in December
Moore, MT

Average snowfall in December - Moore, MT
  • Average snowfall in December: 4.88"

The month with the highest snowfall is April (9.13").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Moore, MT

Average snowfall days in December - Moore, MT
  • Average snowfall days in December: 13.5 days

The month with the highest number of snowfall days is February (15.2 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

Average sunshine days in December
Moore, MT

Average sunshine days in December - Moore, MT
  • Average sunshine days in December: 16 days

The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (8.3 days).

Average UV index in December
Moore, MT

Average UV index in December - Moore, 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, April, October, November and December (UV index 2).

Average cloud cover in December
Moore, MT

Average cloud cover in December - Moore, MT
  • Average cloud cover in December: 41

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 16).

Average visibility in December
Moore, MT

Average visibility in December - Moore, 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).

Moore, Montana, USA

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