December weather forecastOak Run, CA
December
Weather in December
The first month of the winter, December, is also a frosty month in Oak Run, California, with an average temperature fluctuating between 35.2°F (1.8°C) and 49.3°F (9.6°C).Temperature
December is the month when Oak Run sees the lowest average temperatures, with a high of 49.3°F (9.6°C) and a low of 35.2°F (1.8°C).Humidity
In Oak Run, the average relative humidity in December is 73%.Rainfall
In December, the rain falls for 13.9 days. Throughout December, 4.69" (119mm) of precipitation is accumulated. In Oak Run, during the entire year, the rain falls for 99.5 days and collects up to 30.43" (773mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Oak Run. The month with the most snowfall is December, when snow falls for 0.8 days and typically aggregates up to 0.63" (16mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Oak Run, California.On the first day of December in Oak Run, California, sunrise is at 7:13 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:51 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 5.5h of sunshine.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 reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 2 in December transforms into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Experience reduced UV exposure by about half when donning a wide-brim hat. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Oak Run, CA
- Average high temperature in December: 49.3°F
The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is December (49.3°F).
- Average low temperature in December: 35.2°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (35.2°F).
Average pressure in December
Oak Run, CA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in December
Oak Run, CA
- Average wind speed in December: 4.5mph
The windiest months (with the highest average wind speed) are March, April, June and October (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.4mph).
Average humidity in December
Oak Run, CA
- Average humidity in December: 73%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is August (35%).
Average rainfall in December
Oak Run, CA
- Average rainfall in December: 4.69"
The wettest month (with the highest rainfall) is March (5.91").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Oak Run, CA
- Average rainfall days in December: 13.9 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.6 days).
Average snowfall in December
Oak Run, CA
- Average snowfall in December: 0.63"
The month with the highest snowfall is December (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Oak Run, CA
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Oak Run, CA
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Oak Run, CA
- Average sunshine days in December: 16 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (12.7 days).
Average UV index in December
Oak Run, CA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in December
Oak Run, CA
- Average cloud cover in December: 40
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in December
Oak Run, 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).
