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
December proves to be the coldest month, recording an average maximum temperature of 64.4°F (18°C) and a minimum temperature of 47.5°F (8.6°C).Humidity
In December, the average relative humidity is 51%.Rainfall
December is the month with the most rainfall. Rain falls for 4.7 days and accumulates 0.75" (19mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of December in Los Serranos, sunrise is at 6:38 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:52 pm PST.
Sunshine
The months with the least sunshine are February and December, with an average of 6.8h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 4 in December translates into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What is the usual temperature for Los Serranos in December?
What is the average humidity in December?
What is the wettest month?
How much does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Los Serranos have in December?
When are sunrise and sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Los Serranos, CA
- Average high temperature in December: 64.4°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is December (64.4°F).
- Average low temperature in December: 47.5°F
The month with the highest average low temperature is August (66.6°F).
The coldest month (with the lowest average low temperature) is February (47.3°F).
Average pressure in December
Los Serranos, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Los Serranos, CA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in December
Los Serranos, CA
- Average humidity in December: 51%
The month with the highest relative humidity is May (57%).
The month with the lowest relative humidity is November (45%).
Average rainfall in December
Los Serranos, CA
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is June (0").
Average rainfall days in December
Los Serranos, CA
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).
Average daylight in December /
Average sunshine in December
Los Serranos, CA
- Average daylight in December: 9h and 5min
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 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 48min).
Average sunshine days in December
Los Serranos, CA
- Average sunshine days in December: 25.2 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (22.8 days).
Average UV index in December
Los Serranos, CA
- Average UV index in December: 4
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in December
Los Serranos, CA
- Average cloud cover in December: 22
The months with the most cloud cover are February, March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Los Serranos, 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).
Los Serranos, California, USA
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