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 is the month when Silverton sees the lowest average temperatures, with a high of 30°F (-1.1°C) and a low of 19.2°F (-7.1°C).Humidity
The average relative humidity in December is 91%.Rainfall
In December, the rain falls for 7.2 days. Throughout December, 2.87" (73mm) of precipitation is accumulated. In Silverton, during the entire year, the rain falls for 128.7 days and collects up to 24.65" (626mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Silverton. In Silverton, during December, snow falls for 15.8 days and regularly aggregates up to 12.72" (323mm) of snow. Throughout the year, there are 74.7 snowfall days, and 63.27" (1607mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 3:54 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:02 pm PST.
Sunshine
With an average of 3.2h of sunshine, December has the least sunshine of the year in Silverton.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are the coldest months in Silverton?
How cold is December in Silverton?
What is the average humidity in December in Silverton?
How much does it rain in Silverton in December?
How many days does it snow in December in Silverton?
What is the month with the shortest days in Silverton?
How many hours of daylight does Silverton have in December?
When are sunrise and sunset in December in Silverton?
What is the month with the least sunshine in Silverton?
How long on average sun shines in December in Silverton?
When is the lowest UV index in Silverton?
What is the UV index intensity in December in Silverton?
Average temperature in December
Silverton, ID
- Average high temperature in December: 30°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (30°F).
- Average low temperature in December: 19.2°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 (19.2°F).
Average pressure in December
Silverton, ID
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in December
Silverton, ID
- Average wind speed in December: 4.2mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest months (with the lowest average wind speed) are September and December (4.2mph).
Average humidity in December
Silverton, ID
- Average humidity in December: 91%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in December
Silverton, ID
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is January (3.07").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in December
Silverton, ID
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is April (17.3 days).
The month with the least rainy days is July (6 days).
Average snowfall in December
Silverton, ID
- Average snowfall in December: 12.72"
The month with the highest snowfall is January (16.5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Silverton, ID
- Average snowfall days in December: 15.8 days
The month with the highest number of snowfall days is December (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Silverton, ID
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in December
Silverton, ID
- Average sunshine days in December: 12 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is March (9.3 days).
Average UV index in December
Silverton, ID
- 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, November and December (UV index 1).
Average cloud cover in December
Silverton, ID
- Average cloud cover in December: 67
The months with the most cloud cover are January, February and December (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in December
Silverton, ID
- Average visibility in December: 3mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
Silverton, Idaho, USA
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