December weather forecast
Galt, CA

Weather in December

December, the first month of the winter in Galt, is also a fresh month, with an average temperature ranging between min 41°F (5°C) and max 55°F (12.8°C).

Temperature

December is the coldest month, with an average high-temperature of 55°F (12.8°C) and an average low-temperature of 41°F (5°C).

Humidity

In December, the average relative humidity in Galt is 71%.

Rainfall

In Galt, it is raining for 8.2 days, with typically 1.97" (50mm) of accumulated precipitation. In Galt, California, during the entire year, the rain falls for 63.8 days and collects up to 12.6" (320mm) of precipitation.

Snowfall

The only month with snowfall is December. The month with the most snowfall days is December, when snow falls for 0.1 days.

Daylight

December has the shortest days of the year, with an average of 9h and 34min of daylight.
On the first day of December in Galt, sunrise is at 7:03 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:54 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 5.9h of sunshine.

UV index

The months with the lowest UV index in Galt 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 exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Galt?

December is the coldest month in Galt, California, with an average high-temperature of 55°F (12.8°C) and an average low-temperature of 41°F (5°C).

What is the temperature in December in Galt?

In December, in Galt, California, the average high-temperature is 55°F (12.8°C), and the average low-temperature is 41°F (5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 89.6°F (32°C).

What is the average humidity in December in Galt?

The average relative humidity in December in Galt is 71%.

How much does it rain in Galt in December?

In Galt, California, in December, it is raining for 8.2 days, with typically 1.97" (50mm) of accumulated precipitation.

What is the snowiest month in Galt?

December has the most snowfall days of the year in Galt. Snow falls for 0.1 days.

When does it start snowing in Galt?

December is the first month it typically snows in Galt, California. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days in Galt?

December has the shortest days of the year in Galt, with an average of 9h and 34min of daylight.

How many hours of daylight does Galt have in December?

In Galt, California, the average day length in December is 9h and 34min.

When is the sunrise / sunset in December in Galt?

In December, on the first day of the month, sunrise is at 7:03 am and sunset at 4:45 pm. On the last day of the month, in Galt, sunrise is at 7:21 am and sunset at 4:54 pm PST.

What is the month with the least sunshine in Galt?

With an average of 5.9h of sunshine, December has the least sunshine of the year in Galt, California.

How long on average sun shines in December in Galt?

The average sunshine duration in December in Galt is 5.9h.

When is the lowest UV index in Galt?

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

What is the UV index intensity in December in Galt?

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

Average temperature in December
Galt, CA

Average temperature in December - Galt, CA
  • Average high temperature in December: 55°F

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in December: 41°F

The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is December (41°F).

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Average pressure in December
Galt, CA

Average pressure in December - Galt, CA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Galt, CA

Average wind speed in December - Galt, CA
  • Average wind speed in December: 5.2mph

The windiest months (with the highest average wind speed) are February and June (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).

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Average humidity in December
Galt, CA

Average humidity in December - Galt, CA
  • Average humidity in December: 71%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (45%).

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Average rainfall in December
Galt, CA

Average rainfall in December - Galt, CA
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is February (2.4").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in December
Galt, CA

Average rainfall days in December - Galt, CA
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is June (0.9 days).

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Average snowfall days in December
Galt, CA

Average snowfall days in December - Galt, CA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in December / Average sunshine in December - Galt, CA
  • Average daylight in December: 9h and 34min

The month with the longest days is June (Average daylight: 14h and 47min).
The month with the shortest days is December (Average daylight: 9h and 34min).

  • Average sunshine in December: 5h and 54min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in December
Galt, CA

Average sunshine days in December - Galt, CA
  • Average sunshine days in December: 21.8 days

The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (17.8 days).

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Average UV index in December
Galt, CA

Average UV index in December - Galt, CA
  • Average UV index in December: 3

The month with the highest UV index is June (UV index 7).
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
Galt, CA

Average cloud cover in December - Galt, CA
  • Average cloud cover in December: 34

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in December
Galt, CA

Average visibility in December - Galt, 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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