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 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
The month of December, characterized by an average high of 54.5°F (12.5°C) and a low of 40.1°F (4.5°C), is recognized as the coldest.Humidity
In Clements, the average relative humidity in December is 71%.Rainfall
In Clements, during December, the rain falls for 9.8 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, there are 70.8 rainfall days, and 15.91" (404mm) of precipitation is accumulated.Snowfall
The only month with snowfall is December. The month with the most snowfall days is December, when snow falls for 0.1 days.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:02 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:54 pm PST.
Sunshine
With an average of 5.8h of sunshine, December has the least sunshine of the year in Clements.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What is the temperature in December?
What is the average humidity in December in Clements?
How many days does it rain in December?
What is the snowiest month in Clements?
When does it start snowing?
What is the month with the shortest days?
How many hours of daylight does Clements have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine in Clements?
How many hours of sunshine does Clements have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Clements, CA
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in December: 40.1°F
The months with the highest average low temperature are July and August (59.4°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in December
Clements, CA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Clements, CA
- Average wind speed in December: 4.9mph
The windiest month (with the highest average wind speed) is February (5.6mph).
The calmest month (with the lowest average wind speed) is September (4mph).
Average humidity in December
Clements, CA
- Average humidity in December: 71%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (41%).
Average rainfall in December
Clements, CA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is March (2.91").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
Clements, CA
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is March (13.2 days).
The month with the least rainy days is August (0.8 days).
Average snowfall days in December
Clements, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Clements, CA
- 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 July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in December
Clements, CA
- Average sunshine days in December: 20.2 days
The month with the most sunshine days is July (29.2 days).
The month with the least sunshine days is March (16.8 days).
Average UV index in December
Clements, CA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Clements, CA
- Average cloud cover in December: 35
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
Clements, 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).
Clements, California, USA
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