December weather forecastFulton, CA
December
Weather in December
The first month of the winter, December, is still a refreshing month in Fulton, California, with temperature in the range of an average high of 55.8°F (13.2°C) and an average low of 40.5°F (4.7°C).Temperature
The coldest period is December, when temperatures fluctuate between an average high of 55.8°F (13.2°C) and a low of 40.5°F (4.7°C).Humidity
In Fulton, the average relative humidity in December is 74%.Rainfall
In December, in Fulton, California, the rain falls for 11.6 days. Throughout December, 3.27" (83mm) of precipitation is accumulated. In Fulton, during the entire year, the rain falls for 80.5 days and collects up to 17.6" (447mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:10 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:00 pm PST.
Sunshine
With an average of 5.6h of sunshine, December has the least sunshine of the year in Fulton.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 3 during December translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Fulton, CA
- Average high temperature in December: 55.8°F
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in December: 40.5°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).
Average pressure in December
Fulton, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in December
Fulton, CA
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is May (6.4mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity in December
Fulton, CA
- Average humidity in December: 74%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (58%).
Average rainfall in December
Fulton, CA
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is February (3.78").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
Fulton, CA
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (1 days).
Average daylight in December /
Average sunshine in December
Fulton, CA
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Fulton, CA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (15.3 days).
Average UV index in December
Fulton, 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
Fulton, CA
- Average cloud cover in December: 38
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in December
Fulton, 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).
