Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December proves to be the coldest month, recording an average maximum temperature of 25.5°F (-3.6°C) and a minimum temperature of 11.7°F (-11.3°C).Humidity
In December, the average relative humidity is 87%.Rainfall
In Deer Lodge, in December, it is raining for 8.8 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, there are 151.7 rainfall days, and 16.46" (418mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Deer Lodge, in December, during 17 snowfall days, 6.65" (169mm) of snow is typically accumulated. Throughout the year, in Deer Lodge, Montana, there are 105 snowfall days, and 49.69" (1262mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 7:54 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 8:14 am and sunset at 4:54 pm MST.
Sunshine
The average sunshine in December is 5.6h.UV index
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Deer Lodge have in December?
How high is the UV index in December?
Average temperature in December
Deer Lodge, MT
- Average high temperature in December: 25.5°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.5°F).
- Average low temperature in December: 11.7°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (11.7°F).
Average pressure in December
Deer Lodge, MT
- Average pressure in December: 30.19"Hg
The months with the highest atmospheric pressure are January and December (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Deer Lodge, MT
- Average wind speed in December: 6.5mph
The windiest months (with the highest average wind speed) are January and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Deer Lodge, MT
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are July and August (49%).
Average rainfall in December
Deer Lodge, MT
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in December
Deer Lodge, MT
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is December (8.8 days).
Average snowfall in December
Deer Lodge, MT
- Average snowfall in December: 6.65"
The month with the highest snowfall is February (8.78").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Deer Lodge, MT
- Average snowfall days in December: 17 days
The month with the highest number of snowfall days is February (19.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Deer Lodge, 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: 5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in December
Deer Lodge, MT
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in December
Deer Lodge, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Deer Lodge, MT
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in December
Deer Lodge, MT
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Deer Lodge, Montana, USA
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