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 Placerville's coldest month, with an average high-temperature of 50.7°F (10.4°C) and a low-temperature of 36°F (2.2°C).Humidity
The average relative humidity in December is 68%.Rainfall
In Placerville, in December, it is raining for 11 days, with typically 4.76" (121mm) of accumulated precipitation. In Placerville, during the entire year, the rain falls for 86.4 days and collects up to 29.69" (754mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 0.7 days. Throughout December, 0.91" (23mm) of snow is accumulated. In Placerville, during the entire year, snow falls for 6.9 days and aggregates up to 14.09" (358mm) of snow.Daylight
December has the shortest days of the year in Placerville, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:03 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:51 pm PST.
Sunshine
With an average of 5.9h of sunshine, December has the least sunshine of the year in Placerville.UV index
The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 3 in December translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. When the Sun is at its strongest around midday, find shade and limit exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
What is the usual temperature for Placerville in December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine in Placerville?
How many hours of sunshine does Placerville have in December?
What is the UV index reading in December?
Average temperature in December
Placerville, CA
- Average high temperature in December: 50.7°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is December (50.7°F).
- Average low temperature in December: 36°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is December (36°F).
Average pressure in December
Placerville, 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 June (29.9"Hg).
Average wind speed in December
Placerville, CA
- Average wind speed in December: 5.1mph
The windiest month (with the highest average wind speed) is February (6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Placerville, CA
- Average humidity in December: 68%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is July (39%).
Average rainfall in December
Placerville, CA
- Average rainfall in December: 4.76"
The wettest month (with the highest rainfall) is March (5.98").
The driest month (with the least rainfall) is July (0").
Average rainfall days in December
Placerville, CA
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is July (0.9 days).
Average snowfall in December
Placerville, CA
- Average snowfall in December: 0.91"
The month with the highest snowfall is February (5.16").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Placerville, CA
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Placerville, 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: 5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in December
Placerville, CA
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (13.8 days).
Average UV index in December
Placerville, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is November (UV index 2).
Average cloud cover in December
Placerville, CA
- Average cloud cover in December: 33
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
Placerville, 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).
Placerville, California, USA
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