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, with its high-temperature average of 52.9°F (11.6°C) and a low-temperature average of 37.9°F (3.3°C), is the coldest month.Humidity
In December, the average relative humidity in Volcano is 68%.Rainfall
In Volcano, in December, during 11 rainfall days, 4.02" (102mm) of precipitation is typically accumulated. In Volcano, during the entire year, the rain falls for 81.8 days and collects up to 23.39" (594mm) of precipitation.Snowfall
Months with snowfall in Volcano are February, March, November and December. December is the last month it regularly snows in Volcano. During 0.3 snowfall days, in December, Volcano aggregates 0.63" (16mm) of snow. In Volcano, during the entire year, snow falls for 2.8 days and aggregates up to 4.65" (118mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:52 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 6h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 3 during December translates into the following directions:
Take precautions - Protection against skin and eye damage is obliged. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. To cut down UV radiation exposure by about half, sport a wide-brim hat. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What month is the coldest in Volcano?
What is the usual temperature for Volcano in December?
What is the average humidity in December in Volcano?
How many days does it rain in December in Volcano?
What is the last month it snows in Volcano?
What is the month with the shortest days in Volcano?
What is the average length of the day in December in Volcano?
When is the sunrise / sunset in December in Volcano?
What is the month with the least sunshine in Volcano?
How many hours of sunshine does Volcano have in December?
What are the months with the lowest UV index in Volcano?
What is the UV index intensity in December in Volcano?
Average temperature in December
Volcano, CA
- Average high temperature in December: 52.9°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in December: 37.9°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is December (37.9°F).
Average pressure in December
Volcano, CA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Volcano, CA
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Volcano, CA
- Average humidity in December: 68%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (40%).
Average rainfall in December
Volcano, CA
- Average rainfall in December: 4.02"
The wettest month (with the highest rainfall) is March (4.69").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
Volcano, CA
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is March (14.6 days).
The month with the least rainy days is August (1.5 days).
Average snowfall in December
Volcano, CA
- Average snowfall in December: 0.63"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are January, April, May, June, July, August, September and October (0").
Average snowfall days in December
Volcano, CA
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Volcano, CA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Volcano, CA
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (15.1 days).
Average UV index in December
Volcano, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Volcano, CA
- Average cloud cover in December: 33
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
Volcano, CA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Volcano, California, USA
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