December weather forecast
Elk Grove, CA

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Weather in December

December, the first month of the winter in Elk Grove, is still a cool month, with an average temperature ranging between min 40.8°F (4.9°C) and max 54.7°F (12.6°C).

Temperature

December is the month that records the lowest temperatures, with averages ranging from a high of 54.7°F (12.6°C) to a low of 40.8°F (4.9°C).

Humidity

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

Rainfall

In Elk Grove, California, in December, during 9.9 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Elk Grove, during the entire year, the rain falls for 73.3 days and collects up to 15.63" (397mm) of precipitation.

Snowfall

The only month with snowfall is December. December has the most snowfall days of the year in Elk Grove. Snow falls for 0.1 days.

Daylight

The month with the shortest days in Elk Grove is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:04 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:55 pm PST.

Sunshine

With an average of 5.8h of sunshine, December has the least sunshine of the year.

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 value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily maximum UV index of 3 in December translates into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.

Frequently asked questions

What is the coldest month?

The coldest month is December, with an average high-temperature of 54.7°F (12.6°C) and an average low-temperature of 40.8°F (4.9°C).

What is the temperature in December?

An average high-temperature, in December, in Elk Grove, is 54.7°F (12.6°C) and the average low-temperature is 40.8°F (4.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is appraised at 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 71%.

How many days does it rain in December?

In December, the rain falls for 9.9 days. Throughout December, 2.68" (68mm) of precipitation is accumulated.

When does it snow the most?

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

When does it start snowing in Elk Grove?

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

What is the month with the shortest days?

December has the shortest days of the year in Elk Grove, California, with an average of 9h and 30min of daylight.

What is the average length of the day in December?

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

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:55 pm PST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 5.8h of sunshine.

How many hours of sunshine does Elk Grove have in December?

In Elk Grove, the average sunshine duration in December is 5.8h.

What is the month with the lowest UV index?

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

What is the UV index reading in December in Elk Grove?

The average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
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
Elk Grove, CA

Average temperature in December - Elk Grove, CA
  • Average high temperature in December: 54.7°F

The warmest month (with the highest average high temperature) is July (94.3°F).
The month with the lowest average high temperature is December (54.7°F).

  • Average low temperature in December: 40.8°F

The month with the highest average low temperature is August (59.2°F).
The coldest months (with the lowest average low temperature) are January and December (40.8°F).

Average pressure in December
Elk Grove, CA

Average pressure in December - Elk Grove, CA
  • Average pressure in December: 30.13"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).

Average wind speed in December
Elk Grove, CA

Average wind speed in December - Elk Grove, CA
  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

Average humidity in December
Elk Grove, CA

Average humidity in December - Elk Grove, CA
  • Average humidity in December: 71%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (44%).

Average rainfall in December
Elk Grove, CA

Average rainfall in December - Elk Grove, CA
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is March (2.91").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in December
Elk Grove, CA

Average rainfall days in December - Elk Grove, CA
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is March (13.3 days).
The months with the least rainy days are June, July and August (1.4 days).

Average snowfall days in December
Elk Grove, CA

Average snowfall days in December - Elk Grove, 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).

Average daylight in December /
Average sunshine in December
Elk Grove, CA

Average daylight in December / Average sunshine in December - Elk Grove, 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 5min

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 48min).

Average sunshine days in December
Elk Grove, CA

Average sunshine days in December - Elk Grove, CA
  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (16.9 days).

Average UV index in December
Elk Grove, CA

Average UV index in December - Elk Grove, CA
  • Average UV index in December: 3

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in December
Elk Grove, CA

Average cloud cover in December - Elk Grove, CA
  • Average cloud cover in December: 35

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in December
Elk Grove, CA

Average visibility in December - Elk Grove, 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).

Elk Grove, California, USA

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