December weather forecastLos Nietos, CA
December
Weather in December
December, the first month of the winter in Los Nietos, is still a refreshing month, with an average temperature varying between 64.8°F (18.2°C) and 50.2°F (10.1°C).Temperature
December, with its high-temperature average of 64.8°F (18.2°C) and a low-temperature average of 50.2°F (10.1°C), is the coldest month.Humidity
In December, the average relative humidity in Los Nietos, California, is 52%.Rainfall
December is the month with the most rainfall. Rain falls for 4.1 days and accumulates 0.47" (12mm) of precipitation.Daylight
The month with the shortest days in Los Nietos, California, is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 6:40 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:53 pm PST.
Sunshine
The months with the least sunshine in Los Nietos are January, February and December, with an average of 6.8h of sunshine.UV index
The months with the lowest UV index are February, November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 4 leads to the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Los Nietos, CA
- Average high temperature in December: 64.8°F
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (64.8°F).
- Average low temperature in December: 50.2°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (49.8°F).
Average pressure in December
Los Nietos, 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 (29.88"Hg).
Average wind speed in December
Los Nietos, CA
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).
Average humidity in December
Los Nietos, CA
- Average humidity in December: 52%
The month with the highest relative humidity is June (63%).
The month with the lowest relative humidity is November (48%).
Average rainfall in December
Los Nietos, CA
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is December (0.47").
The driest month (with the least rainfall) is June (0").
Average rainfall days in December
Los Nietos, CA
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is March (4.6 days).
The month with the least rainy days is June (0.5 days).
Average daylight in December /
Average sunshine in December
Los Nietos, 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 months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in December
Los Nietos, CA
- Average sunshine days in December: 25.5 days
The month with the most sunshine days is June (29.3 days).
The month with the least sunshine days is February (23.8 days).
Average UV index in December
Los Nietos, CA
- Average UV index in December: 4
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 4).
Average cloud cover in December
Los Nietos, 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 6).
Average visibility in December
Los Nietos, 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).
