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
The coldest month is December, with an average high-temperature of 54.9°F (12.7°C) and an average low-temperature of 41.5°F (5.3°C).Humidity
In Livermore, California, the average relative humidity in December is 71%.Rainfall
In December, the rain falls for 9.9 days. Throughout December, 1.85" (47mm) of precipitation is accumulated. Throughout the year, in Livermore, there are 70.6 rainfall days, and 11.3" (287mm) of precipitation is accumulated.Daylight
December has the shortest days of the year in Livermore, California, with an average of 9h and 37min of daylight.On the first day of December, sunrise is at 7:03 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:58 pm PST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index in Livermore 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 threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
FAQ
What is the coldest month in Livermore?
What is the temperature in December in Livermore?
What is the average humidity in December in Livermore?
How much does it rain in Livermore in December?
What is the month with the shortest days in Livermore?
What is the average length of the day in December in Livermore?
What time are sunrise and sunset in December in Livermore?
What is the month with the least sunshine in Livermore?
How long on average sun shines in December in Livermore?
When is the lowest UV index in Livermore?
How high is the UV index in December in Livermore?
Average temperature in December
Livermore, CA
- Average high temperature in December: 54.9°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (54.9°F).
- Average low temperature in December: 41.5°F
The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).
Average pressure in December
Livermore, 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, August and September (29.92"Hg).
Average wind speed in December
Livermore, CA
- Average wind speed in December: 4.6mph
The windiest months (with the highest average wind speed) are May and June (6.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in December
Livermore, CA
- Average humidity in December: 71%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (55%).
Average rainfall in December
Livermore, CA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is February (2.09").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in December
Livermore, CA
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is August (1.3 days).
Average daylight in December /
Average sunshine in December
Livermore, CA
- Average daylight in December: 9h and 37min
The month with the longest days is June (Average daylight: 14h and 44min).
The month with the shortest days is December (Average daylight: 9h and 37min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Livermore, CA
- Average sunshine days in December: 20 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (17.6 days).
Average UV index in December
Livermore, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Livermore, CA
- Average cloud cover in December: 34
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in December
Livermore, 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).
Weather forecast for your location
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