December weather forecast
Fulton, CA

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Weather in December

The first month of the winter, December, is still a mild month in Fulton, California, with temperature in the range of an average low of 40.5°F (4.7°C) and an average high of 55.8°F (13.2°C).

Temperature

December, having an average high-temperature of 55.8°F (13.2°C) and an average low-temperature of 40.5°F (4.7°C), is the coldest month.

Humidity

The average relative humidity in December in Fulton is 74%.

Rainfall

In Fulton, California, during December, the rain falls for 11.6 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Fulton, during the entire year, the rain falls for 80.5 days and collects up to 17.6" (447mm) of precipitation.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December in Fulton, 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

December has the least sunshine of the year in Fulton, with an average of 5.6h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During December, 3 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What time of the year is the coldest in Fulton?

December is the coldest month, exhibiting average temperatures of 55.8°F (13.2°C) at the peak and 40.5°F (4.7°C) at the base.

What are December temperatures in Fulton?

In December, the average high-temperature and low-temperature in Fulton are 55.8°F (13.2°C) and 40.5°F (4.7°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 84.2°F (29°C).

What is the average humidity in December in Fulton?

In December, the average relative humidity is 74%.

How many days does it rain in December in Fulton?

In Fulton, in December, during 11.6 rainfall days, 3.27" (83mm) of precipitation is typically accumulated.

What is the month with the shortest days in Fulton?

The month with the shortest days in Fulton, California, is December, with an average of 9h and 30min of daylight.

How many hours of daylight does Fulton have in December?

The average day length in December in Fulton, California, is 9h and 32min.

When are sunrise and sunset in December in Fulton?

On the first day of December in Fulton, 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.

What is the month with the least sunshine in Fulton?

With an average of 5.6h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in Fulton?

In Fulton, California, the average sunshine duration in December is 5.6h.

When is the lowest UV index in Fulton?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Fulton, California.

How high is the UV index in December in Fulton?

In Fulton, California, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Fulton, CA

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).

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Average pressure in December
Fulton, CA

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).

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Average wind speed in December
Fulton, CA

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).

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Average humidity in December
Fulton, CA

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%).

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Average rainfall in December
Fulton, CA

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").

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Average rainfall days in December
Fulton, CA

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).

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Average daylight in December /
Average sunshine in December
Fulton, CA

Average daylight in December / Average sunshine in December - Fulton, CA
  • Average daylight in December: 9h and 3min

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 4min

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).

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Average sunshine days in December
Fulton, CA

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).

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Average UV index in December
Fulton, CA

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).

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Average cloud cover in December
Fulton, CA

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).

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Average visibility in December
Fulton, CA

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).

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Fulton, California, USA

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