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
The lowest temperatures are recorded in December, with averages reaching a high of 23.2°F (-4.9°C) and a low of 11.3°F (-11.5°C).Humidity
In December, the average relative humidity is 92%.Rainfall
In Packers Roost, in December, it is raining for 5.5 days, with typically 2.48" (63mm) of accumulated precipitation. In Packers Roost, Montana, during the entire year, the rain falls for 118.6 days and collects up to 20.75" (527mm) of precipitation.Snowfall
Months with snowfall in Packers Roost are January through June, September through December. In Packers Roost, in December, snow falls for 22.8 days, with typically accumulated 19.17" (487mm) of snow. In Packers Roost, Montana, during the entire year, snow falls for 128.7 days and aggregates up to 92.13" (2340mm) of snow.Daylight
December has the shortest days of the year in Packers Roost, with an average of 8h and 18min of daylight.On the first day of December in Packers Roost, sunrise is at 8:07 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 8:27 am and sunset at 4:49 pm MST.
Sunshine
The average sunshine in December in Packers Roost is 3.2h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Packers Roost?
How cold is it in Packers Roost in December?
What is the average humidity in December in Packers Roost?
How many days does it rain in December in Packers Roost?
How many days does it snow in December in Packers Roost?
What is the month with the shortest days in Packers Roost?
What is the average length of the day in December in Packers Roost?
When is the sunrise / sunset in December in Packers Roost?
How long on average sun shines in December in Packers Roost?
When is the lowest UV index in Packers Roost?
What is the UV index reading in December in Packers Roost?
Average temperature in December
Packers Roost, MT
- Average high temperature in December: 23.2°F
The warmest month (with the highest average high temperature) is July (73°F).
The month with the lowest average high temperature is December (23.2°F).
- Average low temperature in December: 11.3°F
The months with the highest average low temperature are July and August (44.2°F).
The coldest month (with the lowest average low temperature) is February (10.9°F).
Average pressure in December
Packers Roost, MT
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Packers Roost, MT
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is November (7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Packers Roost, MT
- Average humidity in December: 92%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (56%).
Average rainfall in December
Packers Roost, MT
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is January (2.56").
The driest month (with the least rainfall) is August (0.71").
Average rainfall days in December
Packers Roost, MT
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Packers Roost, MT
- Average snowfall in December: 19.17"
The month with the highest snowfall is January (20.16").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Packers Roost, MT
- Average snowfall days in December: 22.8 days
The month with the highest number of snowfall days is December (22.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Packers Roost, 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 18min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Packers Roost, MT
- Average sunshine days in December: 8 days
The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in December
Packers Roost, MT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Packers Roost, MT
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in December
Packers Roost, MT
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Packers Roost, Montana, USA
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