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
With average high temperatures of 26.4°F (-3.1°C) and lows of 11.3°F (-11.5°C), December is the coldest month.Humidity
In December, the average relative humidity is 84%.Rainfall
In Leiterville, during December, the rain falls for 11.9 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, there are 158 rainfall days, and 12.2" (310mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Leiterville, in December, snow falls for 4.5 days, with typically accumulated 0.87" (22mm) of snow. In Leiterville, during the entire year, snow falls for 20.8 days and aggregates up to 5.12" (130mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:49 am and sunset at 4:46 pm. On the last day of December, sunrise is at 8:08 am and sunset at 4:55 pm MST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Leiterville?
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Leiterville have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December in Leiterville?
Average temperature in December
Leiterville, MT
- Average high temperature in December: 26.4°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is December (26.4°F).
- Average low temperature in December: 11.3°F
The month with the highest average low temperature is July (47.7°F).
The coldest month (with the lowest average low temperature) is December (11.3°F).
Average pressure in December
Leiterville, MT
- Average pressure in December: 30.22"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Leiterville, MT
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is November (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Leiterville, MT
- Average humidity in December: 84%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (46%).
Average rainfall in December
Leiterville, MT
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in December
Leiterville, MT
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is April (18.6 days).
The month with the least rainy days is August (8.6 days).
Average snowfall in December
Leiterville, MT
- Average snowfall in December: 0.87"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Leiterville, MT
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Leiterville, MT
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Leiterville, MT
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is July (17.8 days).
The month with the least sunshine days is April (7.8 days).
Average UV index in December
Leiterville, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Leiterville, MT
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in December
Leiterville, MT
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Leiterville, Montana, USA
Weather forecast for your location
2. Allow the app to use your location