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
In Sierraville, the lowest average temperatures are observed in December, with a high of 37.2°F (2.9°C) and a low of 21.6°F (-5.8°C).Humidity
In December, the average relative humidity in Sierraville, California, is 79%.Rainfall
In Sierraville, in December, it is raining for 6.8 days, with typically 3.66" (93mm) of accumulated precipitation. Throughout the year, there are 80.1 rainfall days, and 22.95" (583mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sierraville are January through June, September through December. December is the month with the most snowfall in Sierraville. Snow falls for 12.8 days and accumulates 22.52" (572mm) of snow.Daylight
The month with the shortest days in Sierraville, California, is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:47 pm PST.
Sunshine
In Sierraville, the average sunshine in December is 5.2h.UV index
The average daily maximum UV index in December in Sierraville is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What part of the year is the coldest in Sierraville?
How cold is it in Sierraville in December?
What is the average humidity in December in Sierraville?
How much does it rain in Sierraville in December?
What is the snowiest month in Sierraville?
How many days does it snow in December in Sierraville?
What is the month with the shortest days in Sierraville?
What is the average length of the day in December in Sierraville?
When is the sunrise / sunset in December in Sierraville?
How many hours of sunshine does Sierraville have in December?
How high is the UV index in December in Sierraville?
Average temperature in December
Sierraville, CA
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (37.2°F).
- Average low temperature in December: 21.6°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).
Average pressure in December
Sierraville, CA
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Sierraville, CA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).
Average humidity in December
Sierraville, CA
- Average humidity in December: 79%
The months with the highest relative humidity are January and March (81%).
The months with the lowest relative humidity are July and August (40%).
Average rainfall in December
Sierraville, CA
- Average rainfall in December: 3.66"
The wettest month (with the highest rainfall) is March (4.02").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in December
Sierraville, CA
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in December
Sierraville, CA
- Average snowfall in December: 22.52"
The month with the highest snowfall is December (22.52").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Sierraville, CA
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is March (14.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Sierraville, CA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Sierraville, CA
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.8 days).
Average UV index in December
Sierraville, CA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
Sierraville, CA
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in December
Sierraville, CA
- 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 and December (4mi).
Sierraville, California, USA
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