December weather forecastSmith River, CA
December
Weather in December
December, the first month of the winter in Smith River, is still a cool month, with an average temperature varying between 41°F (5°C) and 50.4°F (10.2°C).Temperature
December, on average, is the coldest month, registering a high temperature of 50.4°F (10.2°C) and a low of 41°F (5°C).Humidity
The average relative humidity in December is 79%.Rainfall
The month with the most rainfall is December, when the rain falls for 17.4 days and typically aggregates up to 8.19" (208mm) of precipitation.Snowfall
In Smith River, snow does not fall in January, March through December.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December in Smith River, sunrise is at 7:25 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:55 pm PST.
Sunshine
In December, the average sunshine is 4.9h.UV index
The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in December leads to these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Smith River, CA
- Average high temperature in December: 50.4°F
The warmest month (with the highest average high temperature) is July (71.8°F).
The month with the lowest average high temperature is December (50.4°F).
- Average low temperature in December: 41°F
The month with the highest average low temperature is July (53.4°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).
Average pressure in December
Smith River, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in December
Smith River, CA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Smith River, CA
- Average humidity in December: 79%
The month with the highest relative humidity is March (83%).
The months with the lowest relative humidity are July and September (73%).
Average rainfall in December
Smith River, CA
- Average rainfall in December: 8.19"
The wettest month (with the highest rainfall) is December (8.19").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in December
Smith River, CA
- Average rainfall days in December: 17.4 days
The month with the highest number of rainy days is March (19.2 days).
The month with the least rainy days is July (2.3 days).
Average snowfall in December
Smith River, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Smith River, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Smith River, CA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Smith River, CA
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is July (27.8 days).
The month with the least sunshine days is March (10.7 days).
Average UV index in December
Smith River, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in December
Smith River, CA
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in December
Smith River, 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).
