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
Etna's coldest month, December, generally records average temperatures ranging from a high of 41.5°F (5.3°C) to a low of 26.6°F (-3°C).Humidity
In Etna, the average relative humidity in December is 81%.Rainfall
The month with the most rainfall in Etna, California, is December, when the rain falls for 12.8 days and typically aggregates up to 2.99" (76mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Etna. In Etna, California, in December, snow falls for 6.1 days, with typically accumulated 4.13" (105mm) of snow. Throughout the year, in Etna, there are 30.9 snowfall days, and 20.47" (520mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Etna.On the first day of December, sunrise is at 7:19 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:52 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.7h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What time of the year is the coldest in Etna?
How cold is December in Etna?
What is the average humidity in December in Etna?
What is the wettest month in Etna?
How many days does it rain in December in Etna?
How much does it snow in Etna in December?
What is the month with the shortest days in Etna?
What is the average length of the day in December in Etna?
When are sunrise and sunset in December in Etna?
What are the months with the least sunshine in Etna?
How long on average sun shines in December in Etna?
What are the months with the lowest UV index in Etna?
How high is the UV index in December in Etna?
Average temperature in December
Etna, CA
- Average high temperature in December: 41.5°F
The warmest months (with the highest average high temperature) are July and August (84.2°F).
The month with the lowest average high temperature is December (41.5°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (26.6°F).
Average pressure in December
Etna, CA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in December
Etna, CA
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is March (5.4mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in December
Etna, CA
- Average humidity in December: 81%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (52%).
Average rainfall in December
Etna, CA
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Etna, CA
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is March (16.7 days).
The month with the least rainy days is July (3.2 days).
Average snowfall in December
Etna, CA
- Average snowfall in December: 4.13"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Etna, CA
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Etna, CA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 42min).
Average sunshine days in December
Etna, CA
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11 days).
Average UV index in December
Etna, CA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Etna, CA
- Average cloud cover in December: 43
The months with the most cloud cover are March and December (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in December
Etna, CA
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).
Etna, California, USA
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