December weather forecastThousand Oaks, CA
December
Weather in December
December, the first month of the winter in Thousand Oaks, is still a refreshing month, with an average temperature fluctuating between 60.4°F (15.8°C) and 49.3°F (9.6°C).Temperature
With average temperatures fluctuating between a high of 60.4°F (15.8°C) and a low of 49.3°F (9.6°C), December stands out as the coldest month.Humidity
In Thousand Oaks, California, the average relative humidity in December is 57%.Rainfall
In Thousand Oaks, in December, it is raining for 5.9 days, with typically 1.61" (41mm) of accumulated precipitation. In Thousand Oaks, California, during the entire year, the rain falls for 51.2 days and collects up to 9.41" (239mm) of precipitation.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December in Thousand Oaks, California, sunrise is at 6:43 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:56 pm PST.
Sunshine
The months with the least sunshine in Thousand Oaks are January, February and December, with an average of 6.8h of sunshine.UV index
The months with the lowest UV index in Thousand Oaks are January through April, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 in December translates into these instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. When the Sun is at its strongest around midday, find shade and limit exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Thousand Oaks, CA
- Average high temperature in December: 60.4°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (60.4°F).
- Average low temperature in December: 49.3°F
The month with the highest average low temperature is August (63.7°F).
The coldest month (with the lowest average low temperature) is February (49.1°F).
Average pressure in December
Thousand Oaks, CA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in December
Thousand Oaks, CA
- Average wind speed in December: 6.5mph
The windiest months (with the highest average wind speed) are April and December (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Thousand Oaks, CA
- Average humidity in December: 57%
The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (53%).
Average rainfall in December
Thousand Oaks, CA
- Average rainfall in December: 1.61"
The wettest months (with the highest rainfall) are January and February (1.93").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Thousand Oaks, CA
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is August (1.5 days).
Average daylight in December /
Average sunshine in December
Thousand Oaks, CA
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in December
Thousand Oaks, CA
- Average sunshine days in December: 23.7 days
The month with the most sunshine days is August (26.2 days).
The month with the least sunshine days is February (21 days).
Average UV index in December
Thousand Oaks, CA
- Average UV index in December: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in December
Thousand Oaks, CA
- Average cloud cover in December: 22
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Thousand Oaks, 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).
