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 stands out as Avon's coldest month, with an average high-temperature of 25.5°F (-3.6°C) and a low-temperature of 11.7°F (-11.3°C).Humidity
In December, the average relative humidity is 87%.Rainfall
In Avon, in December, it is raining for 8.8 days, with typically 0.91" (23mm) of accumulated precipitation. In Avon, during the entire year, the rain falls for 151.7 days and collects up to 16.46" (418mm) of precipitation.Snowfall
Months with snowfall in Avon are January through June, September through December. In December, in Avon, it is snowing for 17 days. Throughout December, 6.65" (169mm) of snow is accumulated. Throughout the year, there are 105 snowfall days, and 49.69" (1262mm) of snow is accumulated.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:54 am and sunset at 4:44 pm. On the last day of December, in Avon, sunrise is at 8:14 am and sunset at 4:53 pm MST.
Sunshine
In Avon, the average sunshine in December is 5.6h.UV index
In Avon, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Avon?
How cold is it in Avon in December?
What is the average humidity in December in Avon?
How much does it rain in Avon in December?
How much does it snow in Avon in December?
What is the month with the shortest days in Avon?
What is the average length of the day in December in Avon?
When is the sunrise / sunset in December in Avon?
How long on average sun shines in December in Avon?
What is the UV index intensity in December in Avon?
Average temperature in December
Avon, 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
Avon, 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
Avon, 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
Avon, 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
Avon, 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
Avon, 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
Avon, 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
Avon, 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
Avon, 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 42min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in December
Avon, 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
Avon, 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
Avon, 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
Avon, 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).
Avon, Montana, USA
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