December weather forecast
Loma, MT

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Weather in December

The first month of the winter, December, is still a freezing cold month in Loma, Montana, with an average temperature ranging between min 18.3°F (-7.6°C) and max 30.2°F (-1°C).

Temperature

December, with its high-temperature average of 30.2°F (-1°C) and a low-temperature average of 18.3°F (-7.6°C), is the coldest month.

Humidity

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

Rainfall

December is the month with the least rainfall. Rain falls for 4.5 days and accumulates 0.28" (7mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In Loma, in December, snow falls for 8.5 days, with typically accumulated 1.69" (43mm) of snow. Throughout the year, there are 44.2 snowfall days, and 11.18" (284mm) of snow is accumulated.

Daylight

With an average of 8h and 30min of daylight, December has the shortest days of the year.
On the first day of December in Loma, sunrise is at 7:51 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 4:39 pm MST.

Sunshine

The average sunshine in December is 5.4h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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 Loma?

In Loma, the lowest temperatures are generally noted in December, averaging a high of 30.2°F (-1°C) and a low of 18.3°F (-7.6°C).

How cold is it in Loma in December?

The average high-temperature and low-temperature in Loma during December are 30.2°F (-1°C) and 18.3°F (-7.6°C) respectively. In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 84.2°F (29°C).

What is the average humidity in December in Loma?

In December, the average relative humidity is 76%.

What is the driest month in Loma?

December is the month with the least rainfall. Rain falls for 4.5 days and accumulates 0.28" (7mm) of precipitation.

How much does it rain in Loma in December?

In Loma, Montana, in December, during 4.5 rainfall days, 0.28" (7mm) of precipitation is typically accumulated.

How many days does it snow in December in Loma?

In December, in Loma, Montana, it is snowing for 8.5 days. Throughout December, 1.69" (43mm) of snow is accumulated.

What is the month with the shortest days in Loma?

With an average of 8h and 30min of daylight, December has the shortest days of the year in Loma.

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

In December, the average day length in Loma is 8h and 28min.

When is the sunrise / sunset in December in Loma?

In December, on the first day of the month, sunrise is at 7:51 am and sunset at 4:31 pm. On the last day of the month, in Loma, Montana, sunrise is at 8:11 am and sunset at 4:39 pm MST.

How long on average sun shines in December in Loma?

In December, the average sunshine duration is 5.4h.

When is the lowest UV index in Loma?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December in Loma?

In Loma, 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
Loma, MT

Average temperature in December - Loma, MT
  • Average high temperature in December: 30.2°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (30.2°F).

  • Average low temperature in December: 18.3°F

The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (17.8°F).

Average pressure in December
Loma, MT

Average pressure in December - Loma, 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
Loma, MT

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

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in December
Loma, MT

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

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).

Average rainfall in December
Loma, MT

Average rainfall in December - Loma, MT
  • Average rainfall in December: 0.28"

The wettest month (with the highest rainfall) is June (1.22").
The driest month (with the least rainfall) is December (0.28").

Average rainfall days in December
Loma, MT

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

The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (4.2 days).

Average snowfall in December
Loma, MT

Average snowfall in December - Loma, MT
  • Average snowfall in December: 1.69"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Loma, MT

Average snowfall days in December - Loma, MT
  • Average snowfall days in December: 8.5 days

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Loma, MT
  • Average daylight in December: 8h and 3min

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 30min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

Average sunshine days in December
Loma, MT

Average sunshine days in December - Loma, MT
  • Average sunshine days in December: 20.4 days

The month with the most sunshine days is September (21.5 days).
The month with the least sunshine days is June (14.6 days).

Average UV index in December
Loma, MT

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

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

Average cloud cover in December
Loma, MT

Average cloud cover in December - Loma, MT
  • Average cloud cover in December: 43

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 14).

Average visibility in December
Loma, MT

Average visibility in December - Loma, 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).

Loma, Montana, USA

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