December weather forecastDos Rios, CA
December
Weather in December
The first month of the winter, December, is also a fresh month in Dos Rios, California, with an average temperature ranging between min 35.2°F (1.8°C) and max 51.3°F (10.7°C).Temperature
December is the coldest month, with an average high-temperature of 51.3°F (10.7°C) and an average low-temperature of 35.2°F (1.8°C).Humidity
The average relative humidity in December is 76%.Rainfall
In December, in Dos Rios, the rain falls for 8.3 days. Throughout December, 1.69" (43mm) of precipitation is accumulated. Throughout the year, in Dos Rios, there are 61.6 rainfall days, and 10.47" (266mm) of precipitation is accumulated.Snowfall
In Dos Rios, snow does not fall in April through October and December.Daylight
December has the shortest days of the year in Dos Rios, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:15 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:59 pm PST.
Sunshine
With an average of 5.3h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 2 in December transforms into this advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Dos Rios, CA
- Average high temperature in December: 51.3°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (51.3°F).
- Average low temperature in December: 35.2°F
The month with the highest average low temperature is July (53.4°F).
The coldest months (with the lowest average low temperature) are February, March and December (35.2°F).
Average pressure in December
Dos Rios, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in December
Dos Rios, CA
- Average wind speed in December: 4.2mph
The windiest months (with the highest average wind speed) are March and April (4.6mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in December
Dos Rios, CA
- Average humidity in December: 76%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is July (54%).
Average rainfall in December
Dos Rios, CA
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is February (2.28").
The driest months (with the least rainfall) are July, August and September (0.08").
Average rainfall days in December
Dos Rios, CA
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is March (10.3 days).
The months with the least rainy days are August and September (1.8 days).
Average snowfall in December
Dos Rios, CA
- Average snowfall in December: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in December
Dos Rios, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in December /
Average sunshine in December
Dos Rios, CA
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Dos Rios, CA
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (20.2 days).
Average UV index in December
Dos Rios, CA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in December
Dos Rios, CA
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in December
Dos Rios, CA
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (5mi).





