December weather forecastLos Alamos, CA
December
Weather in December
The first month of the winter, December, is still a refreshing month in Los Alamos, California, with an average temperature ranging between max 61.2°F (16.2°C) and min 48.6°F (9.2°C).Temperature
Los Alamos's temperature records reveal December as the coldest month, marked by average highs of 61.2°F (16.2°C) and lows of 48.6°F (9.2°C).Humidity
In Los Alamos, the average relative humidity in December is 62%.Rainfall
In December, the rain falls for 5 days. Throughout December, 0.94" (24mm) of precipitation is accumulated. In Los Alamos, during the entire year, the rain falls for 37.7 days and collects up to 5.98" (152mm) 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 Alamos, sunrise is at 6:50 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:00 pm PST.
Sunshine
In December, the average sunshine is 6.7h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 3 suggests this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Los Alamos, CA
- Average high temperature in December: 61.2°F
The warmest month (with the highest average high temperature) is August (78.8°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in December: 48.6°F
The month with the highest average low temperature is September (61.2°F).
The coldest month (with the lowest average low temperature) is February (47.8°F).
Average pressure in December
Los Alamos, CA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in December
Los Alamos, CA
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is May (8.9mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Los Alamos, CA
- Average humidity in December: 62%
The month with the highest relative humidity is March (67%).
The months with the lowest relative humidity are October and November (58%).
Average rainfall in December
Los Alamos, CA
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is January (1.38").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Los Alamos, CA
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is March (6.2 days).
The month with the least rainy days is August (0.8 days).
Average daylight in December /
Average sunshine in December
Los Alamos, CA
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 42min
The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in December
Los Alamos, CA
- Average sunshine days in December: 25.7 days
The month with the most sunshine days is August (29 days).
The month with the least sunshine days is February (22.3 days).
Average UV index in December
Los Alamos, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Los Alamos, CA
- Average cloud cover in December: 23
The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Los Alamos, 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).
