December weather forecastNewsom Springs, CA
December
Weather in December
December, the first month of the winter in Newsom Springs, is still a refreshing month, with temperature in the range of an average low of 46.8°F (8.2°C) and an average high of 61.2°F (16.2°C).Temperature
In Newsom Springs, December records the lowest average temperatures, peaking at 61.2°F (16.2°C) and reaching a low of 46.8°F (8.2°C).Humidity
In Newsom Springs, the average relative humidity in December is 63%.Rainfall
In Newsom Springs, during December, the rain falls for 6.4 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Newsom Springs, during the entire year, the rain falls for 47.6 days and collects up to 6.93" (176mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 6:52 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:10 am and sunset at 5:00 pm PST.
Sunshine
The months with the least sunshine in Newsom Springs are February and December, with an average of 6.5h of sunshine.UV index
The months with the lowest UV index are January through March, 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 unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 4 in December transforms into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Newsom Springs, CA
- Average high temperature in December: 61.2°F
The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in December: 46.8°F
The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).
Average pressure in December
Newsom Springs, CA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in December
Newsom Springs, CA
- Average wind speed in December: 6.5mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Newsom Springs, CA
- Average humidity in December: 63%
The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).
Average rainfall in December
Newsom Springs, CA
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in December
Newsom Springs, CA
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).
Average daylight in December /
Average sunshine in December
Newsom Springs, CA
- Average daylight in December: 9h and 48min
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 48min).
- Average sunshine in December: 6h and 30min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).
Average sunshine days in December
Newsom Springs, CA
- Average sunshine days in December: 24 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).
Average UV index in December
Newsom Springs, CA
- Average UV index in December: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in December
Newsom Springs, CA
- Average cloud cover in December: 25
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
Newsom Springs, 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).





