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 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
With its high average temperature of 56.3°F (13.5°C) and a low of 39.7°F (4.3°C), December is regarded as the coldest month.Humidity
The average relative humidity in December in Three Rivers is 62%.Rainfall
In Three Rivers, in December, during 7 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. Throughout the year, in Three Rivers, there are 55.9 rainfall days, and 11.65" (296mm) of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:49 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:50 pm PST.
Sunshine
February and December, with an average of 6.9h of sunshine, are months with the least sunshine in Three Rivers.UV index
The months with the lowest UV index in Three Rivers, California, are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 3 during December translates into the following guidance:
Act with care - The need to guard against sun damage is communicated. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Three Rivers?
What is the usual temperature for Three Rivers in December?
What is the average humidity in December in Three Rivers?
How much does it rain in Three Rivers in December?
What is the month with the shortest days in Three Rivers?
How many hours of daylight does Three Rivers have in December?
What time are sunrise and sunset in December in Three Rivers?
What is the month with the least sunshine in Three Rivers?
How long on average sun shines in December in Three Rivers?
What is the month with the lowest UV index in Three Rivers?
What is the UV index reading in December in Three Rivers?
Average temperature in December
Three Rivers, CA
- Average high temperature in December: 56.3°F
The warmest month (with the highest average high temperature) is July (95.5°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in December: 39.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is December (39.7°F).
Average pressure in December
Three Rivers, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Three Rivers, CA
- Average wind speed in December: 3.3mph
The windiest month (with the highest average wind speed) is June (4.6mph).
The calmest month (with the lowest average wind speed) is December (3.3mph).
Average humidity in December
Three Rivers, CA
- Average humidity in December: 62%
The month with the highest relative humidity is January (63%).
The month with the lowest relative humidity is August (29%).
Average rainfall in December
Three Rivers, CA
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is March (2.32").
The driest months (with the least rainfall) are June, July and August (0.04").
Average rainfall days in December
Three Rivers, CA
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (1 days).
Average daylight in December /
Average sunshine in December
Three Rivers, CA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 5min
The months with the most sunshine are June and July (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in December
Three Rivers, CA
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is March (19.8 days).
Average UV index in December
Three Rivers, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Three Rivers, CA
- Average cloud cover in December: 20
The month with the most cloud cover is March (Cloud cover 22).
The months with the least cloud cover are July, August and September (Cloud cover 4).
Average visibility in December
Three Rivers, 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).
Three Rivers, California, USA
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