December weather forecastEmmaton, CA

December

Weather in December

December, the first month of the winter in Emmaton, is also a fresh month, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 41.7°F (5.4°C).

Temperature

Emmaton reaches its lowest average temperatures in December, measuring 55°F (12.8°C) at the peak and 41.7°F (5.4°C) at the lowest.

Humidity

In December, the average relative humidity is 71%.

Rainfall

In December, in Emmaton, the rain falls for 9.3 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. In Emmaton, California, during the entire year, the rain falls for 62 days and collects up to 10.16" (258mm) of precipitation.

Snowfall

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

Daylight

The month with the shortest days in Emmaton, California, is December, with an average of 9h and 36min of daylight.
On the first day of December in Emmaton, sunrise is at 7:05 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:57 pm PST.

Sunshine

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

UV index

The months with the lowest UV index in Emmaton are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 in December interprets into the following advice:
Adopt protective measures - It is advised to guard against sun damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Emmaton, December records the average lowest temperatures, peaking at 55°F (12.8°C) and reaching a low of 41.7°F (5.4°C).

The high-temperature, in December, in Emmaton, is 55°F (12.8°C), while the low-temperature averages to 41.7°F (5.4°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

The average relative humidity in December is 71%.

In Emmaton, California, in December, during 9.3 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

December has the most snowfall days of the year in Emmaton, California. Snow falls for 0.1 days.

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

December has the shortest days of the year in Emmaton, California, with an average of 9h and 36min of daylight.

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

On the first day of December in Emmaton, California, sunrise is at 7:05 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:57 pm PST.

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

In December, the average sunshine duration is 5.8h.

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

In Emmaton, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Emmaton, CA

  • Average high temperature in December: 55°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in December: 41.7°F

The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

Average pressure in December
Emmaton, CA

  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Emmaton, CA

  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).

Average humidity in December
Emmaton, CA

  • Average humidity in December: 71%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).

Average rainfall in December
Emmaton, CA

  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in December
Emmaton, CA

  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).

Average snowfall days in December
Emmaton, 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
Emmaton, CA

  • Average daylight in December: 9h and 36min

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 36min).

  • Average sunshine in December: 5h and 48min

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
Emmaton, CA

  • Average sunshine days in December: 21.1 days

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).

Average UV index in December
Emmaton, 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
Emmaton, CA

  • Average cloud cover in December: 35

The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in December
Emmaton, 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).