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 Placerville, December records the lowest average temperatures, peaking at 25.7°F (-3.5°C) and reaching a low of 5.9°F (-14.5°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In Placerville, in December, during 6.5 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Placerville, during the entire year, the rain falls for 107.5 days and collects up to 26.34" (669mm) of precipitation.Snowfall
Months with snowfall are January through December. In Placerville, during December, snow falls for 16.5 days and regularly aggregates up to 18.15" (461mm) of snow. In Placerville, during the entire year, snow falls for 117.7 days and aggregates up to 123.82" (3145mm) of snow.Daylight
The month with the shortest days in Placerville is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:02 pm MST.
Sunshine
December has the least sunshine of the year, with an average of 5.8h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Placerville have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Placerville, CO
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (66.7°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in December: 5.9°F
The month with the highest average low temperature is July (43.3°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).
Average pressure in December
Placerville, CO
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The months with the lowest atmospheric pressure are April and May (29.92"Hg).
Average wind speed in December
Placerville, CO
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Placerville, CO
- Average humidity in December: 82%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is June (45%).
Average rainfall in December
Placerville, CO
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is June (1.3").
Average rainfall days in December
Placerville, CO
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is July (21.4 days).
The month with the least rainy days is November (3.1 days).
Average snowfall in December
Placerville, CO
- Average snowfall in December: 18.15"
The month with the highest snowfall is March (19.88").
The month with the least snowfall is July (0.12").
Average snowfall days in December
Placerville, CO
- Average snowfall days in December: 16.5 days
The month with the highest number of snowfall days is February (17.3 days).
The month with the least snowfall days is July (0.3 days).
Average daylight in December /
Average sunshine in December
Placerville, CO
- Average daylight in December: 9h and 4min
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 36min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in December
Placerville, CO
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in December
Placerville, CO
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Placerville, CO
- Average cloud cover in December: 39
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in December
Placerville, CO
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Placerville, Colorado, USA
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